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1 | // Copyright Contributors to the OpenVDB Project | ||
2 | // SPDX-License-Identifier: MPL-2.0 | ||
3 | |||
4 | /// @file math/FiniteDifference.h | ||
5 | |||
6 | #ifndef OPENVDB_MATH_FINITEDIFFERENCE_HAS_BEEN_INCLUDED | ||
7 | #define OPENVDB_MATH_FINITEDIFFERENCE_HAS_BEEN_INCLUDED | ||
8 | |||
9 | #include <openvdb/Types.h> | ||
10 | #include "Math.h" | ||
11 | #include "Coord.h" | ||
12 | #include "Vec3.h" | ||
13 | #include <string> | ||
14 | #include <boost/algorithm/string/case_conv.hpp> | ||
15 | #include <boost/algorithm/string/trim.hpp> | ||
16 | |||
17 | #ifdef DWA_OPENVDB | ||
18 | #include <simd/Simd.h> | ||
19 | #endif | ||
20 | |||
21 | namespace openvdb { | ||
22 | OPENVDB_USE_VERSION_NAMESPACE | ||
23 | namespace OPENVDB_VERSION_NAME { | ||
24 | namespace math { | ||
25 | |||
26 | |||
27 | //////////////////////////////////////// | ||
28 | |||
29 | |||
30 | /// @brief Different discrete schemes used in the first derivatives. | ||
31 | // Add new items to the *end* of this list, and update NUM_DS_SCHEMES. | ||
32 | enum DScheme { | ||
33 | UNKNOWN_DS = -1, | ||
34 | CD_2NDT = 0, // center difference, 2nd order, but the result must be divided by 2 | ||
35 | CD_2ND, // center difference, 2nd order | ||
36 | CD_4TH, // center difference, 4th order | ||
37 | CD_6TH, // center difference, 6th order | ||
38 | FD_1ST, // forward difference, 1st order | ||
39 | FD_2ND, // forward difference, 2nd order | ||
40 | FD_3RD, // forward difference, 3rd order | ||
41 | BD_1ST, // backward difference, 1st order | ||
42 | BD_2ND, // backward difference, 2nd order | ||
43 | BD_3RD, // backward difference, 3rd order | ||
44 | FD_WENO5, // forward difference, weno5 | ||
45 | BD_WENO5, // backward difference, weno5 | ||
46 | FD_HJWENO5, // forward differene, HJ-weno5 | ||
47 | BD_HJWENO5 // backward difference, HJ-weno5 | ||
48 | }; | ||
49 | |||
50 | enum { NUM_DS_SCHEMES = BD_HJWENO5 + 1 }; | ||
51 | |||
52 | |||
53 | inline std::string | ||
54 | dsSchemeToString(DScheme dss) | ||
55 | { | ||
56 | std::string ret; | ||
57 | switch (dss) { | ||
58 | case UNKNOWN_DS: ret = "unknown_ds"; break; | ||
59 | case CD_2NDT: ret = "cd_2ndt"; break; | ||
60 | case CD_2ND: ret = "cd_2nd"; break; | ||
61 | case CD_4TH: ret = "cd_4th"; break; | ||
62 | case CD_6TH: ret = "cd_6th"; break; | ||
63 | case FD_1ST: ret = "fd_1st"; break; | ||
64 | case FD_2ND: ret = "fd_2nd"; break; | ||
65 | case FD_3RD: ret = "fd_3rd"; break; | ||
66 | case BD_1ST: ret = "bd_1st"; break; | ||
67 | case BD_2ND: ret = "bd_2nd"; break; | ||
68 | case BD_3RD: ret = "bd_3rd"; break; | ||
69 | case FD_WENO5: ret = "fd_weno5"; break; | ||
70 | case BD_WENO5: ret = "bd_weno5"; break; | ||
71 | case FD_HJWENO5: ret = "fd_hjweno5"; break; | ||
72 | case BD_HJWENO5: ret = "bd_hjweno5"; break; | ||
73 | } | ||
74 | return ret; | ||
75 | } | ||
76 | |||
77 | inline DScheme | ||
78 | stringToDScheme(const std::string& s) | ||
79 | { | ||
80 | DScheme ret = UNKNOWN_DS; | ||
81 | |||
82 | std::string str = s; | ||
83 | boost::trim(str); | ||
84 | boost::to_lower(str); | ||
85 | |||
86 | if (str == dsSchemeToString(CD_2NDT)) { | ||
87 | ret = CD_2NDT; | ||
88 | } else if (str == dsSchemeToString(CD_2ND)) { | ||
89 | ret = CD_2ND; | ||
90 | } else if (str == dsSchemeToString(CD_4TH)) { | ||
91 | ret = CD_4TH; | ||
92 | } else if (str == dsSchemeToString(CD_6TH)) { | ||
93 | ret = CD_6TH; | ||
94 | } else if (str == dsSchemeToString(FD_1ST)) { | ||
95 | ret = FD_1ST; | ||
96 | } else if (str == dsSchemeToString(FD_2ND)) { | ||
97 | ret = FD_2ND; | ||
98 | } else if (str == dsSchemeToString(FD_3RD)) { | ||
99 | ret = FD_3RD; | ||
100 | } else if (str == dsSchemeToString(BD_1ST)) { | ||
101 | ret = BD_1ST; | ||
102 | } else if (str == dsSchemeToString(BD_2ND)) { | ||
103 | ret = BD_2ND; | ||
104 | } else if (str == dsSchemeToString(BD_3RD)) { | ||
105 | ret = BD_3RD; | ||
106 | } else if (str == dsSchemeToString(FD_WENO5)) { | ||
107 | ret = FD_WENO5; | ||
108 | } else if (str == dsSchemeToString(BD_WENO5)) { | ||
109 | ret = BD_WENO5; | ||
110 | } else if (str == dsSchemeToString(FD_HJWENO5)) { | ||
111 | ret = FD_HJWENO5; | ||
112 | } else if (str == dsSchemeToString(BD_HJWENO5)) { | ||
113 | ret = BD_HJWENO5; | ||
114 | } | ||
115 | |||
116 | return ret; | ||
117 | } | ||
118 | |||
119 | inline std::string | ||
120 | dsSchemeToMenuName(DScheme dss) | ||
121 | { | ||
122 | std::string ret; | ||
123 | switch (dss) { | ||
124 | case UNKNOWN_DS: ret = "Unknown DS scheme"; break; | ||
125 | case CD_2NDT: ret = "Twice 2nd-order center difference"; break; | ||
126 | case CD_2ND: ret = "2nd-order center difference"; break; | ||
127 | case CD_4TH: ret = "4th-order center difference"; break; | ||
128 | case CD_6TH: ret = "6th-order center difference"; break; | ||
129 | case FD_1ST: ret = "1st-order forward difference"; break; | ||
130 | case FD_2ND: ret = "2nd-order forward difference"; break; | ||
131 | case FD_3RD: ret = "3rd-order forward difference"; break; | ||
132 | case BD_1ST: ret = "1st-order backward difference"; break; | ||
133 | case BD_2ND: ret = "2nd-order backward difference"; break; | ||
134 | case BD_3RD: ret = "3rd-order backward difference"; break; | ||
135 | case FD_WENO5: ret = "5th-order WENO forward difference"; break; | ||
136 | case BD_WENO5: ret = "5th-order WENO backward difference"; break; | ||
137 | case FD_HJWENO5: ret = "5th-order HJ-WENO forward difference"; break; | ||
138 | case BD_HJWENO5: ret = "5th-order HJ-WENO backward difference"; break; | ||
139 | } | ||
140 | return ret; | ||
141 | } | ||
142 | |||
143 | |||
144 | |||
145 | //////////////////////////////////////// | ||
146 | |||
147 | |||
148 | /// @brief Different discrete schemes used in the second derivatives. | ||
149 | // Add new items to the *end* of this list, and update NUM_DD_SCHEMES. | ||
150 | enum DDScheme { | ||
151 | UNKNOWN_DD = -1, | ||
152 | CD_SECOND = 0, // center difference, 2nd order | ||
153 | CD_FOURTH, // center difference, 4th order | ||
154 | CD_SIXTH // center difference, 6th order | ||
155 | }; | ||
156 | |||
157 | enum { NUM_DD_SCHEMES = CD_SIXTH + 1 }; | ||
158 | |||
159 | |||
160 | //////////////////////////////////////// | ||
161 | |||
162 | |||
163 | /// @brief Biased Gradients are limited to non-centered differences | ||
164 | // Add new items to the *end* of this list, and update NUM_BIAS_SCHEMES. | ||
165 | enum BiasedGradientScheme { | ||
166 | UNKNOWN_BIAS = -1, | ||
167 | FIRST_BIAS = 0, // uses FD_1ST & BD_1ST | ||
168 | SECOND_BIAS, // uses FD_2ND & BD_2ND | ||
169 | THIRD_BIAS, // uses FD_3RD & BD_3RD | ||
170 | WENO5_BIAS, // uses WENO5 | ||
171 | HJWENO5_BIAS // uses HJWENO5 | ||
172 | }; | ||
173 | |||
174 | enum { NUM_BIAS_SCHEMES = HJWENO5_BIAS + 1 }; | ||
175 | |||
176 | inline std::string | ||
177 | biasedGradientSchemeToString(BiasedGradientScheme bgs) | ||
178 | { | ||
179 | std::string ret; | ||
180 | switch (bgs) { | ||
181 | case UNKNOWN_BIAS: ret = "unknown_bias"; break; | ||
182 | case FIRST_BIAS: ret = "first_bias"; break; | ||
183 | case SECOND_BIAS: ret = "second_bias"; break; | ||
184 | case THIRD_BIAS: ret = "third_bias"; break; | ||
185 | case WENO5_BIAS: ret = "weno5_bias"; break; | ||
186 | case HJWENO5_BIAS: ret = "hjweno5_bias"; break; | ||
187 | } | ||
188 | return ret; | ||
189 | } | ||
190 | |||
191 | inline BiasedGradientScheme | ||
192 | stringToBiasedGradientScheme(const std::string& s) | ||
193 | { | ||
194 | BiasedGradientScheme ret = UNKNOWN_BIAS; | ||
195 | |||
196 | std::string str = s; | ||
197 | boost::trim(str); | ||
198 | boost::to_lower(str); | ||
199 | |||
200 | if (str == biasedGradientSchemeToString(FIRST_BIAS)) { | ||
201 | ret = FIRST_BIAS; | ||
202 | } else if (str == biasedGradientSchemeToString(SECOND_BIAS)) { | ||
203 | ret = SECOND_BIAS; | ||
204 | } else if (str == biasedGradientSchemeToString(THIRD_BIAS)) { | ||
205 | ret = THIRD_BIAS; | ||
206 | } else if (str == biasedGradientSchemeToString(WENO5_BIAS)) { | ||
207 | ret = WENO5_BIAS; | ||
208 | } else if (str == biasedGradientSchemeToString(HJWENO5_BIAS)) { | ||
209 | ret = HJWENO5_BIAS; | ||
210 | } | ||
211 | return ret; | ||
212 | } | ||
213 | |||
214 | inline std::string | ||
215 | biasedGradientSchemeToMenuName(BiasedGradientScheme bgs) | ||
216 | { | ||
217 | std::string ret; | ||
218 | switch (bgs) { | ||
219 | case UNKNOWN_BIAS: ret = "Unknown biased gradient"; break; | ||
220 | case FIRST_BIAS: ret = "1st-order biased gradient"; break; | ||
221 | case SECOND_BIAS: ret = "2nd-order biased gradient"; break; | ||
222 | case THIRD_BIAS: ret = "3rd-order biased gradient"; break; | ||
223 | case WENO5_BIAS: ret = "5th-order WENO biased gradient"; break; | ||
224 | case HJWENO5_BIAS: ret = "5th-order HJ-WENO biased gradient"; break; | ||
225 | } | ||
226 | return ret; | ||
227 | } | ||
228 | |||
229 | //////////////////////////////////////// | ||
230 | |||
231 | |||
232 | /// @brief Temporal integration schemes | ||
233 | // Add new items to the *end* of this list, and update NUM_TEMPORAL_SCHEMES. | ||
234 | enum TemporalIntegrationScheme { | ||
235 | UNKNOWN_TIS = -1, | ||
236 | TVD_RK1,//same as explicit Euler integration | ||
237 | TVD_RK2, | ||
238 | TVD_RK3 | ||
239 | }; | ||
240 | |||
241 | enum { NUM_TEMPORAL_SCHEMES = TVD_RK3 + 1 }; | ||
242 | |||
243 | inline std::string | ||
244 | temporalIntegrationSchemeToString(TemporalIntegrationScheme tis) | ||
245 | { | ||
246 | std::string ret; | ||
247 | switch (tis) { | ||
248 | case UNKNOWN_TIS: ret = "unknown_tis"; break; | ||
249 | case TVD_RK1: ret = "tvd_rk1"; break; | ||
250 | case TVD_RK2: ret = "tvd_rk2"; break; | ||
251 | case TVD_RK3: ret = "tvd_rk3"; break; | ||
252 | } | ||
253 | return ret; | ||
254 | } | ||
255 | |||
256 | inline TemporalIntegrationScheme | ||
257 | stringToTemporalIntegrationScheme(const std::string& s) | ||
258 | { | ||
259 | TemporalIntegrationScheme ret = UNKNOWN_TIS; | ||
260 | |||
261 | std::string str = s; | ||
262 | boost::trim(str); | ||
263 | boost::to_lower(str); | ||
264 | |||
265 | if (str == temporalIntegrationSchemeToString(TVD_RK1)) { | ||
266 | ret = TVD_RK1; | ||
267 | } else if (str == temporalIntegrationSchemeToString(TVD_RK2)) { | ||
268 | ret = TVD_RK2; | ||
269 | } else if (str == temporalIntegrationSchemeToString(TVD_RK3)) { | ||
270 | ret = TVD_RK3; | ||
271 | } | ||
272 | |||
273 | return ret; | ||
274 | } | ||
275 | |||
276 | inline std::string | ||
277 | temporalIntegrationSchemeToMenuName(TemporalIntegrationScheme tis) | ||
278 | { | ||
279 | std::string ret; | ||
280 | switch (tis) { | ||
281 | case UNKNOWN_TIS: ret = "Unknown temporal integration"; break; | ||
282 | case TVD_RK1: ret = "Forward Euler"; break; | ||
283 | case TVD_RK2: ret = "2nd-order Runge-Kutta"; break; | ||
284 | case TVD_RK3: ret = "3rd-order Runge-Kutta"; break; | ||
285 | } | ||
286 | return ret; | ||
287 | } | ||
288 | |||
289 | |||
290 | //@} | ||
291 | |||
292 | |||
293 | /// @brief Implementation of nominally fifth-order finite-difference WENO | ||
294 | /// @details This function returns the numerical flux. See "High Order Finite Difference and | ||
295 | /// Finite Volume WENO Schemes and Discontinuous Galerkin Methods for CFD" - Chi-Wang Shu | ||
296 | /// ICASE Report No 2001-11 (page 6). Also see ICASE No 97-65 for a more complete reference | ||
297 | /// (Shu, 1997). | ||
298 | /// Given v1 = f(x-2dx), v2 = f(x-dx), v3 = f(x), v4 = f(x+dx) and v5 = f(x+2dx), | ||
299 | /// return an interpolated value f(x+dx/2) with the special property that | ||
300 | /// ( f(x+dx/2) - f(x-dx/2) ) / dx = df/dx (x) + error, | ||
301 | /// where the error is fifth-order in smooth regions: O(dx) <= error <=O(dx^5) | ||
302 | template<typename ValueType> | ||
303 | inline ValueType | ||
304 | 14847354 | WENO5(const ValueType& v1, const ValueType& v2, const ValueType& v3, | |
305 | const ValueType& v4, const ValueType& v5, float scale2 = 0.01f) | ||
306 | { | ||
307 | const double C = 13.0 / 12.0; | ||
308 | // WENO is formulated for non-dimensional equations, here the optional scale2 | ||
309 | // is a reference value (squared) for the function being interpolated. For | ||
310 | // example if 'v' is of order 1000, then scale2 = 10^6 is ok. But in practice | ||
311 | // leave scale2 = 1. | ||
312 | 14847354 | const double eps = 1.0e-6 * static_cast<double>(scale2); | |
313 | // {\tilde \omega_k} = \gamma_k / ( \beta_k + \epsilon)^2 in Shu's ICASE report) | ||
314 | 14847354 | const double A1=0.1/math::Pow2(C*math::Pow2(v1-2*v2+v3)+0.25*math::Pow2(v1-4*v2+3.0*v3)+eps), | |
315 | 14847354 | A2=0.6/math::Pow2(C*math::Pow2(v2-2*v3+v4)+0.25*math::Pow2(v2-v4)+eps), | |
316 | 14847354 | A3=0.3/math::Pow2(C*math::Pow2(v3-2*v4+v5)+0.25*math::Pow2(3.0*v3-4*v4+v5)+eps); | |
317 | |||
318 | return static_cast<ValueType>(static_cast<ValueType>( | ||
319 | 14847354 | A1*(2.0*v1 - 7.0*v2 + 11.0*v3) + | |
320 | 14847354 | A2*(5.0*v3 - v2 + 2.0*v4) + | |
321 | 14847354 | A3*(2.0*v3 + 5.0*v4 - v5))/(6.0*(A1+A2+A3))); | |
322 | } | ||
323 | |||
324 | |||
325 | template <typename Real> | ||
326 | 22448213 | inline Real GodunovsNormSqrd(bool isOutside, | |
327 | Real dP_xm, Real dP_xp, | ||
328 | Real dP_ym, Real dP_yp, | ||
329 | Real dP_zm, Real dP_zp) | ||
330 | { | ||
331 | using math::Max; | ||
332 | using math::Min; | ||
333 | using math::Pow2; | ||
334 | |||
335 | 22448213 | const Real zero(0); | |
336 | Real dPLen2; | ||
337 |
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22448213 | if (isOutside) { // outside |
338 |
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19790812 | dPLen2 = Max(Pow2(Max(dP_xm, zero)), Pow2(Min(dP_xp,zero))); // (dP/dx)2 |
339 |
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20420812 | dPLen2 += Max(Pow2(Max(dP_ym, zero)), Pow2(Min(dP_yp,zero))); // (dP/dy)2 |
340 |
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20465735 | dPLen2 += Max(Pow2(Max(dP_zm, zero)), Pow2(Min(dP_zp,zero))); // (dP/dz)2 |
341 | } else { // inside | ||
342 |
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20427612 | dPLen2 = Max(Pow2(Min(dP_xm, zero)), Pow2(Max(dP_xp,zero))); // (dP/dx)2 |
343 |
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20198526 | dPLen2 += Max(Pow2(Min(dP_ym, zero)), Pow2(Max(dP_yp,zero))); // (dP/dy)2 |
344 |
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20212750 | dPLen2 += Max(Pow2(Min(dP_zm, zero)), Pow2(Max(dP_zp,zero))); // (dP/dz)2 |
345 | } | ||
346 | 22448213 | return dPLen2; // |\nabla\phi|^2 | |
347 | } | ||
348 | |||
349 | |||
350 | template<typename Real> | ||
351 | inline Real | ||
352 | GodunovsNormSqrd(bool isOutside, const Vec3<Real>& gradient_m, const Vec3<Real>& gradient_p) | ||
353 | { | ||
354 | 11490754 | return GodunovsNormSqrd<Real>(isOutside, | |
355 | gradient_m[0], gradient_p[0], | ||
356 | gradient_m[1], gradient_p[1], | ||
357 | gradient_m[2], gradient_p[2]); | ||
358 | } | ||
359 | |||
360 | |||
361 | #ifdef DWA_OPENVDB | ||
362 | inline simd::Float4 simdMin(const simd::Float4& a, const simd::Float4& b) { | ||
363 | return simd::Float4(_mm_min_ps(a.base(), b.base())); | ||
364 | } | ||
365 | inline simd::Float4 simdMax(const simd::Float4& a, const simd::Float4& b) { | ||
366 | return simd::Float4(_mm_max_ps(a.base(), b.base())); | ||
367 | } | ||
368 | |||
369 | inline float simdSum(const simd::Float4& v); | ||
370 | |||
371 | inline simd::Float4 Pow2(const simd::Float4& v) { return v * v; } | ||
372 | |||
373 | template<> | ||
374 | inline simd::Float4 | ||
375 | WENO5<simd::Float4>(const simd::Float4& v1, const simd::Float4& v2, const simd::Float4& v3, | ||
376 | const simd::Float4& v4, const simd::Float4& v5, float scale2) | ||
377 | { | ||
378 | using math::Pow2; | ||
379 | using F4 = simd::Float4; | ||
380 | const F4 | ||
381 | C(13.f / 12.f), | ||
382 | eps(1.0e-6f * scale2), | ||
383 | two(2.0), three(3.0), four(4.0), five(5.0), fourth(0.25), | ||
384 | A1 = F4(0.1f) / Pow2(C*Pow2(v1-two*v2+v3) + fourth*Pow2(v1-four*v2+three*v3) + eps), | ||
385 | A2 = F4(0.6f) / Pow2(C*Pow2(v2-two*v3+v4) + fourth*Pow2(v2-v4) + eps), | ||
386 | A3 = F4(0.3f) / Pow2(C*Pow2(v3-two*v4+v5) + fourth*Pow2(three*v3-four*v4+v5) + eps); | ||
387 | return (A1 * (two * v1 - F4(7.0) * v2 + F4(11.0) * v3) + | ||
388 | A2 * (five * v3 - v2 + two * v4) + | ||
389 | A3 * (two * v3 + five * v4 - v5)) / (F4(6.0) * (A1 + A2 + A3)); | ||
390 | } | ||
391 | |||
392 | |||
393 | inline float | ||
394 | simdSum(const simd::Float4& v) | ||
395 | { | ||
396 | // temp = { v3+v3, v2+v2, v1+v3, v0+v2 } | ||
397 | __m128 temp = _mm_add_ps(v.base(), _mm_movehl_ps(v.base(), v.base())); | ||
398 | // temp = { v3+v3, v2+v2, v1+v3, (v0+v2)+(v1+v3) } | ||
399 | temp = _mm_add_ss(temp, _mm_shuffle_ps(temp, temp, 1)); | ||
400 | return _mm_cvtss_f32(temp); | ||
401 | } | ||
402 | |||
403 | inline float | ||
404 | GodunovsNormSqrd(bool isOutside, const simd::Float4& dP_m, const simd::Float4& dP_p) | ||
405 | { | ||
406 | const simd::Float4 zero(0.0); | ||
407 | simd::Float4 v = isOutside | ||
408 | ? simdMax(math::Pow2(simdMax(dP_m, zero)), math::Pow2(simdMin(dP_p, zero))) | ||
409 | : simdMax(math::Pow2(simdMin(dP_m, zero)), math::Pow2(simdMax(dP_p, zero))); | ||
410 | return simdSum(v);//should be v[0]+v[1]+v[2] | ||
411 | } | ||
412 | #endif | ||
413 | |||
414 | |||
415 | template<DScheme DiffScheme> | ||
416 | struct D1 | ||
417 | { | ||
418 | // random access version | ||
419 | template<typename Accessor> | ||
420 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk); | ||
421 | |||
422 | template<typename Accessor> | ||
423 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk); | ||
424 | |||
425 | template<typename Accessor> | ||
426 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk); | ||
427 | |||
428 | // stencil access version | ||
429 | template<typename Stencil> | ||
430 | static typename Stencil::ValueType inX(const Stencil& S); | ||
431 | |||
432 | template<typename Stencil> | ||
433 | static typename Stencil::ValueType inY(const Stencil& S); | ||
434 | |||
435 | template<typename Stencil> | ||
436 | static typename Stencil::ValueType inZ(const Stencil& S); | ||
437 | }; | ||
438 | |||
439 | template<> | ||
440 | struct D1<CD_2NDT> | ||
441 | { | ||
442 | // the difference opperator | ||
443 | template <typename ValueType> | ||
444 | static ValueType difference(const ValueType& xp1, const ValueType& xm1) { | ||
445 |
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21393698 | return xp1 - xm1; |
446 | } | ||
447 | |||
448 | // random access version | ||
449 | template<typename Accessor> | ||
450 | 11977458 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
451 | { | ||
452 | 11977420 | return difference( | |
453 | 11977458 | grid.getValue(ijk.offsetBy(1, 0, 0)), | |
454 | 11977458 | grid.getValue(ijk.offsetBy(-1, 0, 0))); | |
455 | } | ||
456 | |||
457 | template<typename Accessor> | ||
458 | 11977458 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
459 | { | ||
460 | 11977420 | return difference( | |
461 | 11977458 | grid.getValue(ijk.offsetBy(0, 1, 0)), | |
462 | 11977458 | grid.getValue(ijk.offsetBy( 0, -1, 0))); | |
463 | } | ||
464 | |||
465 | template<typename Accessor> | ||
466 | 11977458 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
467 | { | ||
468 | 11977420 | return difference( | |
469 | 11977458 | grid.getValue(ijk.offsetBy(0, 0, 1)), | |
470 | 11977458 | grid.getValue(ijk.offsetBy( 0, 0, -1))); | |
471 | } | ||
472 | |||
473 | // stencil access version | ||
474 | template<typename Stencil> | ||
475 | static typename Stencil::ValueType inX(const Stencil& S) | ||
476 | { | ||
477 | return difference( S.template getValue< 1, 0, 0>(), S.template getValue<-1, 0, 0>()); | ||
478 | } | ||
479 | |||
480 | template<typename Stencil> | ||
481 | static typename Stencil::ValueType inY(const Stencil& S) | ||
482 | { | ||
483 | return difference( S.template getValue< 0, 1, 0>(), S.template getValue< 0,-1, 0>()); | ||
484 | } | ||
485 | |||
486 | template<typename Stencil> | ||
487 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
488 | { | ||
489 | return difference( S.template getValue< 0, 0, 1>(), S.template getValue< 0, 0,-1>()); | ||
490 | } | ||
491 | }; | ||
492 | |||
493 | template<> | ||
494 | struct D1<CD_2ND> | ||
495 | { | ||
496 | |||
497 | // the difference opperator | ||
498 | template <typename ValueType> | ||
499 | static ValueType difference(const ValueType& xp1, const ValueType& xm1) { | ||
500 |
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941179 | return (xp1 - xm1)*ValueType(0.5); |
501 | } | ||
502 | static bool difference(const bool& xp1, const bool& /*xm1*/) { | ||
503 | ✗ | return xp1; | |
504 | } | ||
505 | |||
506 | |||
507 | // random access | ||
508 | template<typename Accessor> | ||
509 | 526363 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
510 | { | ||
511 | 526357 | return difference( | |
512 | 526363 | grid.getValue(ijk.offsetBy(1, 0, 0)), | |
513 | 526363 | grid.getValue(ijk.offsetBy(-1, 0, 0))); | |
514 | } | ||
515 | |||
516 | template<typename Accessor> | ||
517 | 526363 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
518 | { | ||
519 | 526357 | return difference( | |
520 | 526363 | grid.getValue(ijk.offsetBy(0, 1, 0)), | |
521 | 526363 | grid.getValue(ijk.offsetBy( 0, -1, 0))); | |
522 | } | ||
523 | |||
524 | template<typename Accessor> | ||
525 | 526348 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
526 | { | ||
527 | 526342 | return difference( | |
528 | 526348 | grid.getValue(ijk.offsetBy(0, 0, 1)), | |
529 | 526348 | grid.getValue(ijk.offsetBy( 0, 0, -1))); | |
530 | } | ||
531 | |||
532 | |||
533 | // stencil access version | ||
534 | template<typename Stencil> | ||
535 | static typename Stencil::ValueType inX(const Stencil& S) | ||
536 | { | ||
537 | return difference(S.template getValue< 1, 0, 0>(), S.template getValue<-1, 0, 0>()); | ||
538 | } | ||
539 | template<typename Stencil> | ||
540 | static typename Stencil::ValueType inY(const Stencil& S) | ||
541 | { | ||
542 | return difference(S.template getValue< 0, 1, 0>(), S.template getValue< 0,-1, 0>()); | ||
543 | } | ||
544 | |||
545 | template<typename Stencil> | ||
546 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
547 | { | ||
548 | return difference(S.template getValue< 0, 0, 1>(), S.template getValue< 0, 0,-1>()); | ||
549 | } | ||
550 | |||
551 | }; | ||
552 | |||
553 | template<> | ||
554 | struct D1<CD_4TH> | ||
555 | { | ||
556 | |||
557 | // the difference opperator | ||
558 | template <typename ValueType> | ||
559 | static ValueType difference( const ValueType& xp2, const ValueType& xp1, | ||
560 | const ValueType& xm1, const ValueType& xm2 ) { | ||
561 |
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73874 | return ValueType(2./3.)*(xp1 - xm1) + ValueType(1./12.)*(xm2 - xp2) ; |
562 | } | ||
563 | |||
564 | |||
565 | // random access version | ||
566 | template<typename Accessor> | ||
567 | 84 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
568 | { | ||
569 | 84 | return difference( | |
570 | 84 | grid.getValue(ijk.offsetBy( 2,0,0)), grid.getValue(ijk.offsetBy( 1,0,0)), | |
571 | 84 | grid.getValue(ijk.offsetBy(-1,0,0)), grid.getValue(ijk.offsetBy(-2,0,0)) ); | |
572 | } | ||
573 | |||
574 | template<typename Accessor> | ||
575 | 48 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
576 | { | ||
577 | |||
578 | 48 | return difference( | |
579 | 48 | grid.getValue(ijk.offsetBy( 0, 2, 0)), grid.getValue(ijk.offsetBy( 0, 1, 0)), | |
580 | 48 | grid.getValue(ijk.offsetBy( 0,-1, 0)), grid.getValue(ijk.offsetBy( 0,-2, 0)) ); | |
581 | } | ||
582 | |||
583 | template<typename Accessor> | ||
584 | 12 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
585 | { | ||
586 | |||
587 | 12 | return difference( | |
588 | 12 | grid.getValue(ijk.offsetBy( 0, 0, 2)), grid.getValue(ijk.offsetBy( 0, 0, 1)), | |
589 | 12 | grid.getValue(ijk.offsetBy( 0, 0,-1)), grid.getValue(ijk.offsetBy( 0, 0,-2)) ); | |
590 | } | ||
591 | |||
592 | |||
593 | // stencil access version | ||
594 | template<typename Stencil> | ||
595 | static typename Stencil::ValueType inX(const Stencil& S) | ||
596 | { | ||
597 | return difference( S.template getValue< 2, 0, 0>(), | ||
598 | S.template getValue< 1, 0, 0>(), | ||
599 | S.template getValue<-1, 0, 0>(), | ||
600 | S.template getValue<-2, 0, 0>() ); | ||
601 | } | ||
602 | |||
603 | template<typename Stencil> | ||
604 | static typename Stencil::ValueType inY(const Stencil& S) | ||
605 | { | ||
606 | return difference( S.template getValue< 0, 2, 0>(), | ||
607 | S.template getValue< 0, 1, 0>(), | ||
608 | S.template getValue< 0,-1, 0>(), | ||
609 | S.template getValue< 0,-2, 0>() ); | ||
610 | } | ||
611 | |||
612 | template<typename Stencil> | ||
613 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
614 | { | ||
615 | return difference( S.template getValue< 0, 0, 2>(), | ||
616 | S.template getValue< 0, 0, 1>(), | ||
617 | S.template getValue< 0, 0,-1>(), | ||
618 | S.template getValue< 0, 0,-2>() ); | ||
619 | } | ||
620 | }; | ||
621 | |||
622 | template<> | ||
623 | struct D1<CD_6TH> | ||
624 | { | ||
625 | |||
626 | // the difference opperator | ||
627 | template <typename ValueType> | ||
628 | static ValueType difference( const ValueType& xp3, const ValueType& xp2, const ValueType& xp1, | ||
629 | const ValueType& xm1, const ValueType& xm2, const ValueType& xm3 ) | ||
630 | { | ||
631 | 49588 | return ValueType(3./4.)*(xp1 - xm1) - ValueType(0.15)*(xp2 - xm2) | |
632 |
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49576 | + ValueType(1./60.)*(xp3-xm3); |
633 | } | ||
634 | |||
635 | |||
636 | // random access version | ||
637 | template<typename Accessor> | ||
638 | 109 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
639 | { | ||
640 | 109 | return difference( | |
641 | 109 | grid.getValue(ijk.offsetBy( 3,0,0)), grid.getValue(ijk.offsetBy( 2,0,0)), | |
642 | 109 | grid.getValue(ijk.offsetBy( 1,0,0)), grid.getValue(ijk.offsetBy(-1,0,0)), | |
643 | 109 | grid.getValue(ijk.offsetBy(-2,0,0)), grid.getValue(ijk.offsetBy(-3,0,0))); | |
644 | } | ||
645 | |||
646 | template<typename Accessor> | ||
647 | 61 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
648 | { | ||
649 | 61 | return difference( | |
650 | 61 | grid.getValue(ijk.offsetBy( 0, 3, 0)), grid.getValue(ijk.offsetBy( 0, 2, 0)), | |
651 | 61 | grid.getValue(ijk.offsetBy( 0, 1, 0)), grid.getValue(ijk.offsetBy( 0,-1, 0)), | |
652 | 61 | grid.getValue(ijk.offsetBy( 0,-2, 0)), grid.getValue(ijk.offsetBy( 0,-3, 0))); | |
653 | } | ||
654 | |||
655 | template<typename Accessor> | ||
656 | 13 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
657 | { | ||
658 | 13 | return difference( | |
659 | 13 | grid.getValue(ijk.offsetBy( 0, 0, 3)), grid.getValue(ijk.offsetBy( 0, 0, 2)), | |
660 | 13 | grid.getValue(ijk.offsetBy( 0, 0, 1)), grid.getValue(ijk.offsetBy( 0, 0,-1)), | |
661 | 13 | grid.getValue(ijk.offsetBy( 0, 0,-2)), grid.getValue(ijk.offsetBy( 0, 0,-3))); | |
662 | } | ||
663 | |||
664 | // stencil access version | ||
665 | template<typename Stencil> | ||
666 | static typename Stencil::ValueType inX(const Stencil& S) | ||
667 | { | ||
668 | return difference(S.template getValue< 3, 0, 0>(), | ||
669 | S.template getValue< 2, 0, 0>(), | ||
670 | S.template getValue< 1, 0, 0>(), | ||
671 | S.template getValue<-1, 0, 0>(), | ||
672 | S.template getValue<-2, 0, 0>(), | ||
673 | S.template getValue<-3, 0, 0>()); | ||
674 | } | ||
675 | |||
676 | template<typename Stencil> | ||
677 | static typename Stencil::ValueType inY(const Stencil& S) | ||
678 | { | ||
679 | |||
680 | return difference( S.template getValue< 0, 3, 0>(), | ||
681 | S.template getValue< 0, 2, 0>(), | ||
682 | S.template getValue< 0, 1, 0>(), | ||
683 | S.template getValue< 0,-1, 0>(), | ||
684 | S.template getValue< 0,-2, 0>(), | ||
685 | S.template getValue< 0,-3, 0>()); | ||
686 | } | ||
687 | |||
688 | template<typename Stencil> | ||
689 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
690 | { | ||
691 | |||
692 | return difference( S.template getValue< 0, 0, 3>(), | ||
693 | S.template getValue< 0, 0, 2>(), | ||
694 | S.template getValue< 0, 0, 1>(), | ||
695 | S.template getValue< 0, 0,-1>(), | ||
696 | S.template getValue< 0, 0,-2>(), | ||
697 | S.template getValue< 0, 0,-3>()); | ||
698 | } | ||
699 | }; | ||
700 | |||
701 | |||
702 | template<> | ||
703 | struct D1<FD_1ST> | ||
704 | { | ||
705 | |||
706 | // the difference opperator | ||
707 | template <typename ValueType> | ||
708 | static ValueType difference(const ValueType& xp1, const ValueType& xp0) { | ||
709 |
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114270335 | return xp1 - xp0; |
710 | } | ||
711 | |||
712 | |||
713 | // random access version | ||
714 | template<typename Accessor> | ||
715 | 115565654 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
716 | { | ||
717 | 115565654 | return difference(grid.getValue(ijk.offsetBy(1, 0, 0)), grid.getValue(ijk)); | |
718 | } | ||
719 | |||
720 | template<typename Accessor> | ||
721 | 115565654 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
722 | { | ||
723 | 115565654 | return difference(grid.getValue(ijk.offsetBy(0, 1, 0)), grid.getValue(ijk)); | |
724 | } | ||
725 | |||
726 | template<typename Accessor> | ||
727 | 115565654 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
728 | { | ||
729 | 115565654 | return difference(grid.getValue(ijk.offsetBy(0, 0, 1)), grid.getValue(ijk)); | |
730 | } | ||
731 | |||
732 | // stencil access version | ||
733 | template<typename Stencil> | ||
734 | 186624 | static typename Stencil::ValueType inX(const Stencil& S) | |
735 | { | ||
736 | 186624 | return difference(S.template getValue< 1, 0, 0>(), S.template getValue< 0, 0, 0>()); | |
737 | } | ||
738 | |||
739 | template<typename Stencil> | ||
740 | 186624 | static typename Stencil::ValueType inY(const Stencil& S) | |
741 | { | ||
742 | 186624 | return difference(S.template getValue< 0, 1, 0>(), S.template getValue< 0, 0, 0>()); | |
743 | } | ||
744 | |||
745 | template<typename Stencil> | ||
746 | 186624 | static typename Stencil::ValueType inZ(const Stencil& S) | |
747 | { | ||
748 | 186624 | return difference(S.template getValue< 0, 0, 1>(), S.template getValue< 0, 0, 0>()); | |
749 | } | ||
750 | }; | ||
751 | |||
752 | |||
753 | template<> | ||
754 | struct D1<FD_2ND> | ||
755 | { | ||
756 | // the difference opperator | ||
757 | template <typename ValueType> | ||
758 | 147456 | static ValueType difference(const ValueType& xp2, const ValueType& xp1, const ValueType& xp0) | |
759 | { | ||
760 | 147472 | return ValueType(2)*xp1 -(ValueType(0.5)*xp2 + ValueType(3./2.)*xp0); | |
761 | } | ||
762 | |||
763 | |||
764 | // random access version | ||
765 | template<typename Accessor> | ||
766 | 12290 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
767 | { | ||
768 | 12290 | return difference( | |
769 | 12290 | grid.getValue(ijk.offsetBy(2,0,0)), | |
770 | 12290 | grid.getValue(ijk.offsetBy(1,0,0)), | |
771 | 12290 | grid.getValue(ijk)); | |
772 | } | ||
773 | |||
774 | template<typename Accessor> | ||
775 | 12290 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
776 | { | ||
777 | 12290 | return difference( | |
778 | 12290 | grid.getValue(ijk.offsetBy(0,2,0)), | |
779 | 12290 | grid.getValue(ijk.offsetBy(0,1,0)), | |
780 | 12290 | grid.getValue(ijk)); | |
781 | } | ||
782 | |||
783 | template<typename Accessor> | ||
784 | 12290 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
785 | { | ||
786 | 12290 | return difference( | |
787 | 12290 | grid.getValue(ijk.offsetBy(0,0,2)), | |
788 | 12290 | grid.getValue(ijk.offsetBy(0,0,1)), | |
789 | 12290 | grid.getValue(ijk)); | |
790 | } | ||
791 | |||
792 | |||
793 | // stencil access version | ||
794 | template<typename Stencil> | ||
795 | static typename Stencil::ValueType inX(const Stencil& S) | ||
796 | { | ||
797 | 12288 | return difference( S.template getValue< 2, 0, 0>(), | |
798 | S.template getValue< 1, 0, 0>(), | ||
799 | S.template getValue< 0, 0, 0>() ); | ||
800 | } | ||
801 | |||
802 | template<typename Stencil> | ||
803 | static typename Stencil::ValueType inY(const Stencil& S) | ||
804 | { | ||
805 | 12288 | return difference( S.template getValue< 0, 2, 0>(), | |
806 | S.template getValue< 0, 1, 0>(), | ||
807 | S.template getValue< 0, 0, 0>() ); | ||
808 | } | ||
809 | |||
810 | template<typename Stencil> | ||
811 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
812 | { | ||
813 | 12288 | return difference( S.template getValue< 0, 0, 2>(), | |
814 | S.template getValue< 0, 0, 1>(), | ||
815 | S.template getValue< 0, 0, 0>() ); | ||
816 | } | ||
817 | |||
818 | }; | ||
819 | |||
820 | |||
821 | template<> | ||
822 | struct D1<FD_3RD> | ||
823 | { | ||
824 | |||
825 | // the difference opperator | ||
826 | template<typename ValueType> | ||
827 | 98784 | static ValueType difference(const ValueType& xp3, const ValueType& xp2, | |
828 | const ValueType& xp1, const ValueType& xp0) | ||
829 | { | ||
830 | 98800 | return static_cast<ValueType>(xp3/3.0 - 1.5*xp2 + 3.0*xp1 - 11.0*xp0/6.0); | |
831 | } | ||
832 | |||
833 | |||
834 | // random access version | ||
835 | template<typename Accessor> | ||
836 | 8234 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
837 | { | ||
838 | 16468 | return difference( grid.getValue(ijk.offsetBy(3,0,0)), | |
839 | 8234 | grid.getValue(ijk.offsetBy(2,0,0)), | |
840 | 8234 | grid.getValue(ijk.offsetBy(1,0,0)), | |
841 | 8234 | grid.getValue(ijk) ); | |
842 | } | ||
843 | |||
844 | template<typename Accessor> | ||
845 | 8234 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
846 | { | ||
847 | 16468 | return difference( grid.getValue(ijk.offsetBy(0,3,0)), | |
848 | 8234 | grid.getValue(ijk.offsetBy(0,2,0)), | |
849 | 8234 | grid.getValue(ijk.offsetBy(0,1,0)), | |
850 | 8234 | grid.getValue(ijk) ); | |
851 | } | ||
852 | |||
853 | template<typename Accessor> | ||
854 | 8234 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
855 | { | ||
856 | 16468 | return difference( grid.getValue(ijk.offsetBy(0,0,3)), | |
857 | 8234 | grid.getValue(ijk.offsetBy(0,0,2)), | |
858 | 8234 | grid.getValue(ijk.offsetBy(0,0,1)), | |
859 | 8234 | grid.getValue(ijk) ); | |
860 | } | ||
861 | |||
862 | |||
863 | // stencil access version | ||
864 | template<typename Stencil> | ||
865 | static typename Stencil::ValueType inX(const Stencil& S) | ||
866 | { | ||
867 | 8232 | return difference(S.template getValue< 3, 0, 0>(), | |
868 | S.template getValue< 2, 0, 0>(), | ||
869 | S.template getValue< 1, 0, 0>(), | ||
870 | S.template getValue< 0, 0, 0>() ); | ||
871 | } | ||
872 | |||
873 | template<typename Stencil> | ||
874 | static typename Stencil::ValueType inY(const Stencil& S) | ||
875 | { | ||
876 | 8232 | return difference(S.template getValue< 0, 3, 0>(), | |
877 | S.template getValue< 0, 2, 0>(), | ||
878 | S.template getValue< 0, 1, 0>(), | ||
879 | S.template getValue< 0, 0, 0>() ); | ||
880 | } | ||
881 | |||
882 | template<typename Stencil> | ||
883 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
884 | { | ||
885 | 8232 | return difference( S.template getValue< 0, 0, 3>(), | |
886 | S.template getValue< 0, 0, 2>(), | ||
887 | S.template getValue< 0, 0, 1>(), | ||
888 | S.template getValue< 0, 0, 0>() ); | ||
889 | } | ||
890 | }; | ||
891 | |||
892 | |||
893 | template<> | ||
894 | struct D1<BD_1ST> | ||
895 | { | ||
896 | |||
897 | // the difference opperator | ||
898 | template <typename ValueType> | ||
899 | 559872 | static ValueType difference(const ValueType& xm1, const ValueType& xm0) { | |
900 |
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17229236 | return -D1<FD_1ST>::difference(xm1, xm0); |
901 | } | ||
902 | |||
903 | |||
904 | // random access version | ||
905 | template<typename Accessor> | ||
906 | 5671060 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
907 | { | ||
908 | 5671060 | return difference(grid.getValue(ijk.offsetBy(-1,0,0)), grid.getValue(ijk)); | |
909 | } | ||
910 | |||
911 | template<typename Accessor> | ||
912 | 5671060 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
913 | { | ||
914 | 5671060 | return difference(grid.getValue(ijk.offsetBy(0,-1,0)), grid.getValue(ijk)); | |
915 | } | ||
916 | |||
917 | template<typename Accessor> | ||
918 | 5671060 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
919 | { | ||
920 | 5671060 | return difference(grid.getValue(ijk.offsetBy(0, 0,-1)), grid.getValue(ijk)); | |
921 | } | ||
922 | |||
923 | |||
924 | // stencil access version | ||
925 | template<typename Stencil> | ||
926 | static typename Stencil::ValueType inX(const Stencil& S) | ||
927 | { | ||
928 | 93312 | return difference(S.template getValue<-1, 0, 0>(), S.template getValue< 0, 0, 0>()); | |
929 | } | ||
930 | |||
931 | template<typename Stencil> | ||
932 | static typename Stencil::ValueType inY(const Stencil& S) | ||
933 | { | ||
934 | 93312 | return difference(S.template getValue< 0,-1, 0>(), S.template getValue< 0, 0, 0>()); | |
935 | } | ||
936 | |||
937 | template<typename Stencil> | ||
938 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
939 | { | ||
940 | 93312 | return difference(S.template getValue< 0, 0,-1>(), S.template getValue< 0, 0, 0>()); | |
941 | } | ||
942 | }; | ||
943 | |||
944 | |||
945 | template<> | ||
946 | struct D1<BD_2ND> | ||
947 | { | ||
948 | |||
949 | // the difference opperator | ||
950 | template <typename ValueType> | ||
951 | 73728 | static ValueType difference(const ValueType& xm2, const ValueType& xm1, const ValueType& xm0) | |
952 | { | ||
953 | 73736 | return -D1<FD_2ND>::difference(xm2, xm1, xm0); | |
954 | } | ||
955 | |||
956 | |||
957 | // random access version | ||
958 | template<typename Accessor> | ||
959 | 12290 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
960 | { | ||
961 | 24580 | return difference( grid.getValue(ijk.offsetBy(-2,0,0)), | |
962 | 12290 | grid.getValue(ijk.offsetBy(-1,0,0)), | |
963 | 12290 | grid.getValue(ijk) ); | |
964 | } | ||
965 | |||
966 | template<typename Accessor> | ||
967 | 12290 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
968 | { | ||
969 | 24580 | return difference( grid.getValue(ijk.offsetBy(0,-2,0)), | |
970 | 12290 | grid.getValue(ijk.offsetBy(0,-1,0)), | |
971 | 12290 | grid.getValue(ijk) ); | |
972 | } | ||
973 | |||
974 | template<typename Accessor> | ||
975 | 12290 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
976 | { | ||
977 | 24580 | return difference( grid.getValue(ijk.offsetBy(0,0,-2)), | |
978 | 12290 | grid.getValue(ijk.offsetBy(0,0,-1)), | |
979 | 12290 | grid.getValue(ijk) ); | |
980 | } | ||
981 | |||
982 | // stencil access version | ||
983 | template<typename Stencil> | ||
984 | static typename Stencil::ValueType inX(const Stencil& S) | ||
985 | { | ||
986 | 12288 | return difference( S.template getValue<-2, 0, 0>(), | |
987 | S.template getValue<-1, 0, 0>(), | ||
988 | S.template getValue< 0, 0, 0>() ); | ||
989 | } | ||
990 | |||
991 | template<typename Stencil> | ||
992 | static typename Stencil::ValueType inY(const Stencil& S) | ||
993 | { | ||
994 | 12288 | return difference( S.template getValue< 0,-2, 0>(), | |
995 | S.template getValue< 0,-1, 0>(), | ||
996 | S.template getValue< 0, 0, 0>() ); | ||
997 | } | ||
998 | |||
999 | template<typename Stencil> | ||
1000 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
1001 | { | ||
1002 | 12288 | return difference( S.template getValue< 0, 0,-2>(), | |
1003 | S.template getValue< 0, 0,-1>(), | ||
1004 | S.template getValue< 0, 0, 0>() ); | ||
1005 | } | ||
1006 | }; | ||
1007 | |||
1008 | |||
1009 | template<> | ||
1010 | struct D1<BD_3RD> | ||
1011 | { | ||
1012 | |||
1013 | // the difference opperator | ||
1014 | template <typename ValueType> | ||
1015 | 49392 | static ValueType difference(const ValueType& xm3, const ValueType& xm2, | |
1016 | const ValueType& xm1, const ValueType& xm0) | ||
1017 | { | ||
1018 | 49400 | return -D1<FD_3RD>::difference(xm3, xm2, xm1, xm0); | |
1019 | } | ||
1020 | |||
1021 | // random access version | ||
1022 | template<typename Accessor> | ||
1023 | 8234 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
1024 | { | ||
1025 | 16468 | return difference( grid.getValue(ijk.offsetBy(-3,0,0)), | |
1026 | 8234 | grid.getValue(ijk.offsetBy(-2,0,0)), | |
1027 | 8234 | grid.getValue(ijk.offsetBy(-1,0,0)), | |
1028 | 8234 | grid.getValue(ijk) ); | |
1029 | } | ||
1030 | |||
1031 | template<typename Accessor> | ||
1032 | 8234 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
1033 | { | ||
1034 | 16468 | return difference( grid.getValue(ijk.offsetBy( 0,-3,0)), | |
1035 | 8234 | grid.getValue(ijk.offsetBy( 0,-2,0)), | |
1036 | 8234 | grid.getValue(ijk.offsetBy( 0,-1,0)), | |
1037 | 8234 | grid.getValue(ijk) ); | |
1038 | } | ||
1039 | |||
1040 | template<typename Accessor> | ||
1041 | 8234 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
1042 | { | ||
1043 | 16468 | return difference( grid.getValue(ijk.offsetBy( 0, 0,-3)), | |
1044 | 8234 | grid.getValue(ijk.offsetBy( 0, 0,-2)), | |
1045 | 8234 | grid.getValue(ijk.offsetBy( 0, 0,-1)), | |
1046 | 8234 | grid.getValue(ijk) ); | |
1047 | } | ||
1048 | |||
1049 | // stencil access version | ||
1050 | template<typename Stencil> | ||
1051 | static typename Stencil::ValueType inX(const Stencil& S) | ||
1052 | { | ||
1053 | 8232 | return difference( S.template getValue<-3, 0, 0>(), | |
1054 | S.template getValue<-2, 0, 0>(), | ||
1055 | S.template getValue<-1, 0, 0>(), | ||
1056 | S.template getValue< 0, 0, 0>() ); | ||
1057 | } | ||
1058 | |||
1059 | template<typename Stencil> | ||
1060 | static typename Stencil::ValueType inY(const Stencil& S) | ||
1061 | { | ||
1062 | 8232 | return difference( S.template getValue< 0,-3, 0>(), | |
1063 | S.template getValue< 0,-2, 0>(), | ||
1064 | S.template getValue< 0,-1, 0>(), | ||
1065 | S.template getValue< 0, 0, 0>() ); | ||
1066 | } | ||
1067 | |||
1068 | template<typename Stencil> | ||
1069 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
1070 | { | ||
1071 | 8232 | return difference( S.template getValue< 0, 0,-3>(), | |
1072 | S.template getValue< 0, 0,-2>(), | ||
1073 | S.template getValue< 0, 0,-1>(), | ||
1074 | S.template getValue< 0, 0, 0>() ); | ||
1075 | } | ||
1076 | |||
1077 | }; | ||
1078 | |||
1079 | template<> | ||
1080 | struct D1<FD_WENO5> | ||
1081 | { | ||
1082 | // the difference operator | ||
1083 | template <typename ValueType> | ||
1084 | 12 | static ValueType difference(const ValueType& xp3, const ValueType& xp2, | |
1085 | const ValueType& xp1, const ValueType& xp0, | ||
1086 | const ValueType& xm1, const ValueType& xm2) { | ||
1087 | 12 | return WENO5<ValueType>(xp3, xp2, xp1, xp0, xm1) | |
1088 | 12 | - WENO5<ValueType>(xp2, xp1, xp0, xm1, xm2); | |
1089 | } | ||
1090 | |||
1091 | |||
1092 | // random access version | ||
1093 | template<typename Accessor> | ||
1094 | 1 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
1095 | { | ||
1096 | using ValueType = typename Accessor::ValueType; | ||
1097 | ValueType V[6]; | ||
1098 | 1 | V[0] = grid.getValue(ijk.offsetBy(3,0,0)); | |
1099 | 1 | V[1] = grid.getValue(ijk.offsetBy(2,0,0)); | |
1100 | 1 | V[2] = grid.getValue(ijk.offsetBy(1,0,0)); | |
1101 | 1 | V[3] = grid.getValue(ijk); | |
1102 | 1 | V[4] = grid.getValue(ijk.offsetBy(-1,0,0)); | |
1103 | 1 | V[5] = grid.getValue(ijk.offsetBy(-2,0,0)); | |
1104 | |||
1105 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1106 | } | ||
1107 | |||
1108 | template<typename Accessor> | ||
1109 | 1 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
1110 | { | ||
1111 | using ValueType = typename Accessor::ValueType; | ||
1112 | ValueType V[6]; | ||
1113 | 1 | V[0] = grid.getValue(ijk.offsetBy(0,3,0)); | |
1114 | 1 | V[1] = grid.getValue(ijk.offsetBy(0,2,0)); | |
1115 | 1 | V[2] = grid.getValue(ijk.offsetBy(0,1,0)); | |
1116 | 1 | V[3] = grid.getValue(ijk); | |
1117 | 1 | V[4] = grid.getValue(ijk.offsetBy(0,-1,0)); | |
1118 | 1 | V[5] = grid.getValue(ijk.offsetBy(0,-2,0)); | |
1119 | |||
1120 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1121 | } | ||
1122 | |||
1123 | template<typename Accessor> | ||
1124 | 1 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
1125 | { | ||
1126 | using ValueType = typename Accessor::ValueType; | ||
1127 | ValueType V[6]; | ||
1128 | 1 | V[0] = grid.getValue(ijk.offsetBy(0,0,3)); | |
1129 | 1 | V[1] = grid.getValue(ijk.offsetBy(0,0,2)); | |
1130 | 1 | V[2] = grid.getValue(ijk.offsetBy(0,0,1)); | |
1131 | 1 | V[3] = grid.getValue(ijk); | |
1132 | 1 | V[4] = grid.getValue(ijk.offsetBy(0,0,-1)); | |
1133 | 1 | V[5] = grid.getValue(ijk.offsetBy(0,0,-2)); | |
1134 | |||
1135 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1136 | } | ||
1137 | |||
1138 | // stencil access version | ||
1139 | template<typename Stencil> | ||
1140 | 1 | static typename Stencil::ValueType inX(const Stencil& S) | |
1141 | { | ||
1142 | |||
1143 | 1 | return static_cast<typename Stencil::ValueType>(difference( | |
1144 | S.template getValue< 3, 0, 0>(), | ||
1145 | S.template getValue< 2, 0, 0>(), | ||
1146 | S.template getValue< 1, 0, 0>(), | ||
1147 | S.template getValue< 0, 0, 0>(), | ||
1148 | S.template getValue<-1, 0, 0>(), | ||
1149 | 1 | S.template getValue<-2, 0, 0>() )); | |
1150 | |||
1151 | } | ||
1152 | |||
1153 | template<typename Stencil> | ||
1154 | 1 | static typename Stencil::ValueType inY(const Stencil& S) | |
1155 | { | ||
1156 | 1 | return static_cast<typename Stencil::ValueType>(difference( | |
1157 | S.template getValue< 0, 3, 0>(), | ||
1158 | S.template getValue< 0, 2, 0>(), | ||
1159 | S.template getValue< 0, 1, 0>(), | ||
1160 | S.template getValue< 0, 0, 0>(), | ||
1161 | S.template getValue< 0,-1, 0>(), | ||
1162 | 1 | S.template getValue< 0,-2, 0>() )); | |
1163 | } | ||
1164 | |||
1165 | template<typename Stencil> | ||
1166 | 1 | static typename Stencil::ValueType inZ(const Stencil& S) | |
1167 | { | ||
1168 | 1 | return static_cast<typename Stencil::ValueType>(difference( | |
1169 | S.template getValue< 0, 0, 3>(), | ||
1170 | S.template getValue< 0, 0, 2>(), | ||
1171 | S.template getValue< 0, 0, 1>(), | ||
1172 | S.template getValue< 0, 0, 0>(), | ||
1173 | S.template getValue< 0, 0,-1>(), | ||
1174 | 1 | S.template getValue< 0, 0,-2>() )); | |
1175 | } | ||
1176 | }; | ||
1177 | |||
1178 | template<> | ||
1179 | struct D1<FD_HJWENO5> | ||
1180 | { | ||
1181 | |||
1182 | // the difference opperator | ||
1183 | template <typename ValueType> | ||
1184 | 14387652 | static ValueType difference(const ValueType& xp3, const ValueType& xp2, | |
1185 | const ValueType& xp1, const ValueType& xp0, | ||
1186 | const ValueType& xm1, const ValueType& xm2) { | ||
1187 | 14387652 | return WENO5<ValueType>(xp3 - xp2, xp2 - xp1, xp1 - xp0, xp0-xm1, xm1-xm2); | |
1188 | } | ||
1189 | |||
1190 | // random access version | ||
1191 | template<typename Accessor> | ||
1192 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | ||
1193 | { | ||
1194 | using ValueType = typename Accessor::ValueType; | ||
1195 | ValueType V[6]; | ||
1196 | V[0] = grid.getValue(ijk.offsetBy(3,0,0)); | ||
1197 | V[1] = grid.getValue(ijk.offsetBy(2,0,0)); | ||
1198 | V[2] = grid.getValue(ijk.offsetBy(1,0,0)); | ||
1199 | V[3] = grid.getValue(ijk); | ||
1200 | V[4] = grid.getValue(ijk.offsetBy(-1,0,0)); | ||
1201 | V[5] = grid.getValue(ijk.offsetBy(-2,0,0)); | ||
1202 | |||
1203 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | ||
1204 | |||
1205 | } | ||
1206 | |||
1207 | template<typename Accessor> | ||
1208 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | ||
1209 | { | ||
1210 | using ValueType = typename Accessor::ValueType; | ||
1211 | ValueType V[6]; | ||
1212 | V[0] = grid.getValue(ijk.offsetBy(0,3,0)); | ||
1213 | V[1] = grid.getValue(ijk.offsetBy(0,2,0)); | ||
1214 | V[2] = grid.getValue(ijk.offsetBy(0,1,0)); | ||
1215 | V[3] = grid.getValue(ijk); | ||
1216 | V[4] = grid.getValue(ijk.offsetBy(0,-1,0)); | ||
1217 | V[5] = grid.getValue(ijk.offsetBy(0,-2,0)); | ||
1218 | |||
1219 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | ||
1220 | } | ||
1221 | |||
1222 | template<typename Accessor> | ||
1223 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | ||
1224 | { | ||
1225 | using ValueType = typename Accessor::ValueType; | ||
1226 | ValueType V[6]; | ||
1227 | V[0] = grid.getValue(ijk.offsetBy(0,0,3)); | ||
1228 | V[1] = grid.getValue(ijk.offsetBy(0,0,2)); | ||
1229 | V[2] = grid.getValue(ijk.offsetBy(0,0,1)); | ||
1230 | V[3] = grid.getValue(ijk); | ||
1231 | V[4] = grid.getValue(ijk.offsetBy(0,0,-1)); | ||
1232 | V[5] = grid.getValue(ijk.offsetBy(0,0,-2)); | ||
1233 | |||
1234 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | ||
1235 | } | ||
1236 | |||
1237 | // stencil access version | ||
1238 | template<typename Stencil> | ||
1239 | 2397942 | static typename Stencil::ValueType inX(const Stencil& S) | |
1240 | { | ||
1241 | |||
1242 | 2397942 | return difference( S.template getValue< 3, 0, 0>(), | |
1243 | S.template getValue< 2, 0, 0>(), | ||
1244 | S.template getValue< 1, 0, 0>(), | ||
1245 | S.template getValue< 0, 0, 0>(), | ||
1246 | S.template getValue<-1, 0, 0>(), | ||
1247 | 2397942 | S.template getValue<-2, 0, 0>() ); | |
1248 | |||
1249 | } | ||
1250 | |||
1251 | template<typename Stencil> | ||
1252 | 2397942 | static typename Stencil::ValueType inY(const Stencil& S) | |
1253 | { | ||
1254 | 2397942 | return difference( S.template getValue< 0, 3, 0>(), | |
1255 | S.template getValue< 0, 2, 0>(), | ||
1256 | S.template getValue< 0, 1, 0>(), | ||
1257 | S.template getValue< 0, 0, 0>(), | ||
1258 | S.template getValue< 0,-1, 0>(), | ||
1259 | 2397942 | S.template getValue< 0,-2, 0>() ); | |
1260 | } | ||
1261 | |||
1262 | template<typename Stencil> | ||
1263 | 2397942 | static typename Stencil::ValueType inZ(const Stencil& S) | |
1264 | { | ||
1265 | |||
1266 | 2397942 | return difference( S.template getValue< 0, 0, 3>(), | |
1267 | S.template getValue< 0, 0, 2>(), | ||
1268 | S.template getValue< 0, 0, 1>(), | ||
1269 | S.template getValue< 0, 0, 0>(), | ||
1270 | S.template getValue< 0, 0,-1>(), | ||
1271 | 2397942 | S.template getValue< 0, 0,-2>() ); | |
1272 | } | ||
1273 | |||
1274 | }; | ||
1275 | |||
1276 | template<> | ||
1277 | struct D1<BD_WENO5> | ||
1278 | { | ||
1279 | |||
1280 | template<typename ValueType> | ||
1281 | static ValueType difference(const ValueType& xm3, const ValueType& xm2, const ValueType& xm1, | ||
1282 | const ValueType& xm0, const ValueType& xp1, const ValueType& xp2) | ||
1283 | { | ||
1284 | 6 | return -D1<FD_WENO5>::difference(xm3, xm2, xm1, xm0, xp1, xp2); | |
1285 | } | ||
1286 | |||
1287 | |||
1288 | // random access version | ||
1289 | template<typename Accessor> | ||
1290 | 1 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
1291 | { | ||
1292 | using ValueType = typename Accessor::ValueType; | ||
1293 | ValueType V[6]; | ||
1294 | 1 | V[0] = grid.getValue(ijk.offsetBy(-3,0,0)); | |
1295 | 1 | V[1] = grid.getValue(ijk.offsetBy(-2,0,0)); | |
1296 | 1 | V[2] = grid.getValue(ijk.offsetBy(-1,0,0)); | |
1297 | 1 | V[3] = grid.getValue(ijk); | |
1298 | 1 | V[4] = grid.getValue(ijk.offsetBy(1,0,0)); | |
1299 | 1 | V[5] = grid.getValue(ijk.offsetBy(2,0,0)); | |
1300 | |||
1301 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1302 | } | ||
1303 | |||
1304 | template<typename Accessor> | ||
1305 | 1 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
1306 | { | ||
1307 | using ValueType = typename Accessor::ValueType; | ||
1308 | ValueType V[6]; | ||
1309 | 1 | V[0] = grid.getValue(ijk.offsetBy(0,-3,0)); | |
1310 | 1 | V[1] = grid.getValue(ijk.offsetBy(0,-2,0)); | |
1311 | 1 | V[2] = grid.getValue(ijk.offsetBy(0,-1,0)); | |
1312 | 1 | V[3] = grid.getValue(ijk); | |
1313 | 1 | V[4] = grid.getValue(ijk.offsetBy(0,1,0)); | |
1314 | 1 | V[5] = grid.getValue(ijk.offsetBy(0,2,0)); | |
1315 | |||
1316 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1317 | } | ||
1318 | |||
1319 | template<typename Accessor> | ||
1320 | 1 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
1321 | { | ||
1322 | using ValueType = typename Accessor::ValueType; | ||
1323 | ValueType V[6]; | ||
1324 | 1 | V[0] = grid.getValue(ijk.offsetBy(0,0,-3)); | |
1325 | 1 | V[1] = grid.getValue(ijk.offsetBy(0,0,-2)); | |
1326 | 1 | V[2] = grid.getValue(ijk.offsetBy(0,0,-1)); | |
1327 | 1 | V[3] = grid.getValue(ijk); | |
1328 | 1 | V[4] = grid.getValue(ijk.offsetBy(0,0,1)); | |
1329 | 1 | V[5] = grid.getValue(ijk.offsetBy(0,0,2)); | |
1330 | |||
1331 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1332 | } | ||
1333 | |||
1334 | // stencil access version | ||
1335 | template<typename Stencil> | ||
1336 | 1 | static typename Stencil::ValueType inX(const Stencil& S) | |
1337 | { | ||
1338 | using ValueType = typename Stencil::ValueType; | ||
1339 | ValueType V[6]; | ||
1340 | 1 | V[0] = S.template getValue<-3, 0, 0>(); | |
1341 | 1 | V[1] = S.template getValue<-2, 0, 0>(); | |
1342 | 1 | V[2] = S.template getValue<-1, 0, 0>(); | |
1343 | 1 | V[3] = S.template getValue< 0, 0, 0>(); | |
1344 | 1 | V[4] = S.template getValue< 1, 0, 0>(); | |
1345 | 1 | V[5] = S.template getValue< 2, 0, 0>(); | |
1346 | |||
1347 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1348 | } | ||
1349 | |||
1350 | template<typename Stencil> | ||
1351 | 1 | static typename Stencil::ValueType inY(const Stencil& S) | |
1352 | { | ||
1353 | using ValueType = typename Stencil::ValueType; | ||
1354 | ValueType V[6]; | ||
1355 | 1 | V[0] = S.template getValue< 0,-3, 0>(); | |
1356 | 1 | V[1] = S.template getValue< 0,-2, 0>(); | |
1357 | 1 | V[2] = S.template getValue< 0,-1, 0>(); | |
1358 | 1 | V[3] = S.template getValue< 0, 0, 0>(); | |
1359 | 1 | V[4] = S.template getValue< 0, 1, 0>(); | |
1360 | 1 | V[5] = S.template getValue< 0, 2, 0>(); | |
1361 | |||
1362 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1363 | } | ||
1364 | |||
1365 | template<typename Stencil> | ||
1366 | 1 | static typename Stencil::ValueType inZ(const Stencil& S) | |
1367 | { | ||
1368 | using ValueType = typename Stencil::ValueType; | ||
1369 | ValueType V[6]; | ||
1370 | 1 | V[0] = S.template getValue< 0, 0,-3>(); | |
1371 | 1 | V[1] = S.template getValue< 0, 0,-2>(); | |
1372 | 1 | V[2] = S.template getValue< 0, 0,-1>(); | |
1373 | 1 | V[3] = S.template getValue< 0, 0, 0>(); | |
1374 | 1 | V[4] = S.template getValue< 0, 0, 1>(); | |
1375 | 1 | V[5] = S.template getValue< 0, 0, 2>(); | |
1376 | |||
1377 | 1 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1378 | } | ||
1379 | }; | ||
1380 | |||
1381 | |||
1382 | template<> | ||
1383 | struct D1<BD_HJWENO5> | ||
1384 | { | ||
1385 | template<typename ValueType> | ||
1386 | static ValueType difference(const ValueType& xm3, const ValueType& xm2, const ValueType& xm1, | ||
1387 | const ValueType& xm0, const ValueType& xp1, const ValueType& xp2) | ||
1388 | { | ||
1389 | 7193826 | return -D1<FD_HJWENO5>::difference(xm3, xm2, xm1, xm0, xp1, xp2); | |
1390 | } | ||
1391 | |||
1392 | // random access version | ||
1393 | template<typename Accessor> | ||
1394 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | ||
1395 | { | ||
1396 | using ValueType = typename Accessor::ValueType; | ||
1397 | ValueType V[6]; | ||
1398 | V[0] = grid.getValue(ijk.offsetBy(-3,0,0)); | ||
1399 | V[1] = grid.getValue(ijk.offsetBy(-2,0,0)); | ||
1400 | V[2] = grid.getValue(ijk.offsetBy(-1,0,0)); | ||
1401 | V[3] = grid.getValue(ijk); | ||
1402 | V[4] = grid.getValue(ijk.offsetBy(1,0,0)); | ||
1403 | V[5] = grid.getValue(ijk.offsetBy(2,0,0)); | ||
1404 | |||
1405 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | ||
1406 | } | ||
1407 | |||
1408 | template<typename Accessor> | ||
1409 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | ||
1410 | { | ||
1411 | using ValueType = typename Accessor::ValueType; | ||
1412 | ValueType V[6]; | ||
1413 | V[0] = grid.getValue(ijk.offsetBy(0,-3,0)); | ||
1414 | V[1] = grid.getValue(ijk.offsetBy(0,-2,0)); | ||
1415 | V[2] = grid.getValue(ijk.offsetBy(0,-1,0)); | ||
1416 | V[3] = grid.getValue(ijk); | ||
1417 | V[4] = grid.getValue(ijk.offsetBy(0,1,0)); | ||
1418 | V[5] = grid.getValue(ijk.offsetBy(0,2,0)); | ||
1419 | |||
1420 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | ||
1421 | } | ||
1422 | |||
1423 | template<typename Accessor> | ||
1424 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | ||
1425 | { | ||
1426 | using ValueType = typename Accessor::ValueType; | ||
1427 | ValueType V[6]; | ||
1428 | V[0] = grid.getValue(ijk.offsetBy(0,0,-3)); | ||
1429 | V[1] = grid.getValue(ijk.offsetBy(0,0,-2)); | ||
1430 | V[2] = grid.getValue(ijk.offsetBy(0,0,-1)); | ||
1431 | V[3] = grid.getValue(ijk); | ||
1432 | V[4] = grid.getValue(ijk.offsetBy(0,0,1)); | ||
1433 | V[5] = grid.getValue(ijk.offsetBy(0,0,2)); | ||
1434 | |||
1435 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | ||
1436 | } | ||
1437 | |||
1438 | // stencil access version | ||
1439 | template<typename Stencil> | ||
1440 | 2397942 | static typename Stencil::ValueType inX(const Stencil& S) | |
1441 | { | ||
1442 | using ValueType = typename Stencil::ValueType; | ||
1443 | ValueType V[6]; | ||
1444 | 2397942 | V[0] = S.template getValue<-3, 0, 0>(); | |
1445 | 2397942 | V[1] = S.template getValue<-2, 0, 0>(); | |
1446 | 2397942 | V[2] = S.template getValue<-1, 0, 0>(); | |
1447 | 2397942 | V[3] = S.template getValue< 0, 0, 0>(); | |
1448 | 2397942 | V[4] = S.template getValue< 1, 0, 0>(); | |
1449 | 2397942 | V[5] = S.template getValue< 2, 0, 0>(); | |
1450 | |||
1451 | 2397942 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1452 | } | ||
1453 | |||
1454 | template<typename Stencil> | ||
1455 | 2397942 | static typename Stencil::ValueType inY(const Stencil& S) | |
1456 | { | ||
1457 | using ValueType = typename Stencil::ValueType; | ||
1458 | ValueType V[6]; | ||
1459 | 2397942 | V[0] = S.template getValue< 0,-3, 0>(); | |
1460 | 2397942 | V[1] = S.template getValue< 0,-2, 0>(); | |
1461 | 2397942 | V[2] = S.template getValue< 0,-1, 0>(); | |
1462 | 2397942 | V[3] = S.template getValue< 0, 0, 0>(); | |
1463 | 2397942 | V[4] = S.template getValue< 0, 1, 0>(); | |
1464 | 2397942 | V[5] = S.template getValue< 0, 2, 0>(); | |
1465 | |||
1466 | 2397942 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1467 | } | ||
1468 | |||
1469 | template<typename Stencil> | ||
1470 | 2397942 | static typename Stencil::ValueType inZ(const Stencil& S) | |
1471 | { | ||
1472 | using ValueType = typename Stencil::ValueType; | ||
1473 | ValueType V[6]; | ||
1474 | 2397942 | V[0] = S.template getValue< 0, 0,-3>(); | |
1475 | 2397942 | V[1] = S.template getValue< 0, 0,-2>(); | |
1476 | 2397942 | V[2] = S.template getValue< 0, 0,-1>(); | |
1477 | 2397942 | V[3] = S.template getValue< 0, 0, 0>(); | |
1478 | 2397942 | V[4] = S.template getValue< 0, 0, 1>(); | |
1479 | 2397942 | V[5] = S.template getValue< 0, 0, 2>(); | |
1480 | |||
1481 | 2397942 | return difference(V[0], V[1], V[2], V[3], V[4], V[5]); | |
1482 | } | ||
1483 | }; | ||
1484 | |||
1485 | |||
1486 | template<DScheme DiffScheme> | ||
1487 | struct D1Vec | ||
1488 | { | ||
1489 | // random access version | ||
1490 | template<typename Accessor> | ||
1491 | static typename Accessor::ValueType::value_type | ||
1492 | 26371910 | inX(const Accessor& grid, const Coord& ijk, int n) | |
1493 | { | ||
1494 | 26371910 | return D1<DiffScheme>::inX(grid, ijk)[n]; | |
1495 | } | ||
1496 | |||
1497 | template<typename Accessor> | ||
1498 | static typename Accessor::ValueType::value_type | ||
1499 | 26371910 | inY(const Accessor& grid, const Coord& ijk, int n) | |
1500 | { | ||
1501 | 26371910 | return D1<DiffScheme>::inY(grid, ijk)[n]; | |
1502 | } | ||
1503 | template<typename Accessor> | ||
1504 | static typename Accessor::ValueType::value_type | ||
1505 | 26371910 | inZ(const Accessor& grid, const Coord& ijk, int n) | |
1506 | { | ||
1507 | 26371910 | return D1<DiffScheme>::inZ(grid, ijk)[n]; | |
1508 | } | ||
1509 | |||
1510 | |||
1511 | // stencil access version | ||
1512 | template<typename Stencil> | ||
1513 |
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455328 | static typename Stencil::ValueType::value_type inX(const Stencil& S, int n) |
1514 | { | ||
1515 |
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455328 | return D1<DiffScheme>::inX(S)[n]; |
1516 | } | ||
1517 | |||
1518 | template<typename Stencil> | ||
1519 |
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455328 | static typename Stencil::ValueType::value_type inY(const Stencil& S, int n) |
1520 | { | ||
1521 |
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455328 | return D1<DiffScheme>::inY(S)[n]; |
1522 | } | ||
1523 | |||
1524 | template<typename Stencil> | ||
1525 |
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455328 | static typename Stencil::ValueType::value_type inZ(const Stencil& S, int n) |
1526 | { | ||
1527 |
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455328 | return D1<DiffScheme>::inZ(S)[n]; |
1528 | } | ||
1529 | }; | ||
1530 | |||
1531 | |||
1532 | template<> | ||
1533 | struct D1Vec<CD_2NDT> | ||
1534 | { | ||
1535 | |||
1536 | // random access version | ||
1537 | template<typename Accessor> | ||
1538 | static typename Accessor::ValueType::value_type | ||
1539 | 2273338 | inX(const Accessor& grid, const Coord& ijk, int n) | |
1540 | { | ||
1541 | 2273338 | return D1<CD_2NDT>::difference( grid.getValue(ijk.offsetBy( 1, 0, 0))[n], | |
1542 | 2273338 | grid.getValue(ijk.offsetBy(-1, 0, 0))[n] ); | |
1543 | } | ||
1544 | |||
1545 | template<typename Accessor> | ||
1546 | static typename Accessor::ValueType::value_type | ||
1547 | 2273338 | inY(const Accessor& grid, const Coord& ijk, int n) | |
1548 | { | ||
1549 | 2273338 | return D1<CD_2NDT>::difference( grid.getValue(ijk.offsetBy(0, 1, 0))[n], | |
1550 | 2273338 | grid.getValue(ijk.offsetBy(0,-1, 0))[n] ); | |
1551 | } | ||
1552 | |||
1553 | template<typename Accessor> | ||
1554 | static typename Accessor::ValueType::value_type | ||
1555 | 2273338 | inZ(const Accessor& grid, const Coord& ijk, int n) | |
1556 | { | ||
1557 | 2273338 | return D1<CD_2NDT>::difference( grid.getValue(ijk.offsetBy(0, 0, 1))[n], | |
1558 | 2273338 | grid.getValue(ijk.offsetBy(0, 0,-1))[n] ); | |
1559 | } | ||
1560 | |||
1561 | // stencil access version | ||
1562 | template<typename Stencil> | ||
1563 | static typename Stencil::ValueType::value_type inX(const Stencil& S, int n) | ||
1564 | { | ||
1565 | return D1<CD_2NDT>::difference( S.template getValue< 1, 0, 0>()[n], | ||
1566 | S.template getValue<-1, 0, 0>()[n] ); | ||
1567 | } | ||
1568 | |||
1569 | template<typename Stencil> | ||
1570 | static typename Stencil::ValueType::value_type inY(const Stencil& S, int n) | ||
1571 | { | ||
1572 | return D1<CD_2NDT>::difference( S.template getValue< 0, 1, 0>()[n], | ||
1573 | S.template getValue< 0,-1, 0>()[n] ); | ||
1574 | } | ||
1575 | |||
1576 | template<typename Stencil> | ||
1577 | static typename Stencil::ValueType::value_type inZ(const Stencil& S, int n) | ||
1578 | { | ||
1579 | return D1<CD_2NDT>::difference( S.template getValue< 0, 0, 1>()[n], | ||
1580 | S.template getValue< 0, 0,-1>()[n] ); | ||
1581 | } | ||
1582 | }; | ||
1583 | |||
1584 | template<> | ||
1585 | struct D1Vec<CD_2ND> | ||
1586 | { | ||
1587 | |||
1588 | // random access version | ||
1589 | template<typename Accessor> | ||
1590 | static typename Accessor::ValueType::value_type | ||
1591 | 99144 | inX(const Accessor& grid, const Coord& ijk, int n) | |
1592 | { | ||
1593 | 99144 | return D1<CD_2ND>::difference( grid.getValue(ijk.offsetBy( 1, 0, 0))[n] , | |
1594 | 99144 | grid.getValue(ijk.offsetBy(-1, 0, 0))[n] ); | |
1595 | } | ||
1596 | |||
1597 | template<typename Accessor> | ||
1598 | static typename Accessor::ValueType::value_type | ||
1599 | 99144 | inY(const Accessor& grid, const Coord& ijk, int n) | |
1600 | { | ||
1601 | 99144 | return D1<CD_2ND>::difference( grid.getValue(ijk.offsetBy(0, 1, 0))[n] , | |
1602 | 99144 | grid.getValue(ijk.offsetBy(0,-1, 0))[n] ); | |
1603 | } | ||
1604 | |||
1605 | template<typename Accessor> | ||
1606 | static typename Accessor::ValueType::value_type | ||
1607 | 99144 | inZ(const Accessor& grid, const Coord& ijk, int n) | |
1608 | { | ||
1609 | 99144 | return D1<CD_2ND>::difference( grid.getValue(ijk.offsetBy(0, 0, 1))[n] , | |
1610 | 99144 | grid.getValue(ijk.offsetBy(0, 0,-1))[n] ); | |
1611 | } | ||
1612 | |||
1613 | |||
1614 | // stencil access version | ||
1615 | template<typename Stencil> | ||
1616 |
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52488 | static typename Stencil::ValueType::value_type inX(const Stencil& S, int n) |
1617 | { | ||
1618 | return D1<CD_2ND>::difference( S.template getValue< 1, 0, 0>()[n], | ||
1619 | 52488 | S.template getValue<-1, 0, 0>()[n] ); | |
1620 | } | ||
1621 | |||
1622 | template<typename Stencil> | ||
1623 |
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52488 | static typename Stencil::ValueType::value_type inY(const Stencil& S, int n) |
1624 | { | ||
1625 | return D1<CD_2ND>::difference( S.template getValue< 0, 1, 0>()[n], | ||
1626 | 52488 | S.template getValue< 0,-1, 0>()[n] ); | |
1627 | } | ||
1628 | |||
1629 | template<typename Stencil> | ||
1630 |
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52488 | static typename Stencil::ValueType::value_type inZ(const Stencil& S, int n) |
1631 | { | ||
1632 | return D1<CD_2ND>::difference( S.template getValue< 0, 0, 1>()[n], | ||
1633 | 52488 | S.template getValue< 0, 0,-1>()[n] ); | |
1634 | } | ||
1635 | }; | ||
1636 | |||
1637 | |||
1638 | template<> | ||
1639 | struct D1Vec<CD_4TH> { | ||
1640 | // using value_type = typename Accessor::ValueType::value_type; | ||
1641 | |||
1642 | |||
1643 | // random access version | ||
1644 | template<typename Accessor> | ||
1645 | static typename Accessor::ValueType::value_type | ||
1646 | 12288 | inX(const Accessor& grid, const Coord& ijk, int n) | |
1647 | { | ||
1648 | return D1<CD_4TH>::difference( | ||
1649 |
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12288 | grid.getValue(ijk.offsetBy(2, 0, 0))[n], grid.getValue(ijk.offsetBy( 1, 0, 0))[n], |
1650 |
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36864 | grid.getValue(ijk.offsetBy(-1,0, 0))[n], grid.getValue(ijk.offsetBy(-2, 0, 0))[n]); |
1651 | } | ||
1652 | |||
1653 | template<typename Accessor> | ||
1654 | static typename Accessor::ValueType::value_type | ||
1655 | 12288 | inY(const Accessor& grid, const Coord& ijk, int n) | |
1656 | { | ||
1657 | return D1<CD_4TH>::difference( | ||
1658 |
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12288 | grid.getValue(ijk.offsetBy( 0, 2, 0))[n], grid.getValue(ijk.offsetBy( 0, 1, 0))[n], |
1659 |
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36864 | grid.getValue(ijk.offsetBy( 0,-1, 0))[n], grid.getValue(ijk.offsetBy( 0,-2, 0))[n]); |
1660 | } | ||
1661 | |||
1662 | template<typename Accessor> | ||
1663 | static typename Accessor::ValueType::value_type | ||
1664 | 12288 | inZ(const Accessor& grid, const Coord& ijk, int n) | |
1665 | { | ||
1666 | return D1<CD_4TH>::difference( | ||
1667 |
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12288 | grid.getValue(ijk.offsetBy(0,0, 2))[n], grid.getValue(ijk.offsetBy( 0, 0, 1))[n], |
1668 |
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36864 | grid.getValue(ijk.offsetBy(0,0,-1))[n], grid.getValue(ijk.offsetBy( 0, 0,-2))[n]); |
1669 | } | ||
1670 | |||
1671 | // stencil access version | ||
1672 | template<typename Stencil> | ||
1673 |
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12288 | static typename Stencil::ValueType::value_type inX(const Stencil& S, int n) |
1674 | { | ||
1675 | return D1<CD_4TH>::difference( | ||
1676 | S.template getValue< 2, 0, 0>()[n], S.template getValue< 1, 0, 0>()[n], | ||
1677 | 12288 | S.template getValue<-1, 0, 0>()[n], S.template getValue<-2, 0, 0>()[n] ); | |
1678 | } | ||
1679 | |||
1680 | template<typename Stencil> | ||
1681 |
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12288 | static typename Stencil::ValueType::value_type inY(const Stencil& S, int n) |
1682 | { | ||
1683 | return D1<CD_4TH>::difference( | ||
1684 | S.template getValue< 0, 2, 0>()[n], S.template getValue< 0, 1, 0>()[n], | ||
1685 | 12288 | S.template getValue< 0,-1, 0>()[n], S.template getValue< 0,-2, 0>()[n]); | |
1686 | } | ||
1687 | |||
1688 | template<typename Stencil> | ||
1689 |
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12288 | static typename Stencil::ValueType::value_type inZ(const Stencil& S, int n) |
1690 | { | ||
1691 | return D1<CD_4TH>::difference( | ||
1692 | S.template getValue< 0, 0, 2>()[n], S.template getValue< 0, 0, 1>()[n], | ||
1693 | 12288 | S.template getValue< 0, 0,-1>()[n], S.template getValue< 0, 0,-2>()[n]); | |
1694 | } | ||
1695 | }; | ||
1696 | |||
1697 | |||
1698 | template<> | ||
1699 | struct D1Vec<CD_6TH> | ||
1700 | { | ||
1701 | //using ValueType = typename Accessor::ValueType::value_type::value_type; | ||
1702 | |||
1703 | // random access version | ||
1704 | template<typename Accessor> | ||
1705 | static typename Accessor::ValueType::value_type | ||
1706 | 8232 | inX(const Accessor& grid, const Coord& ijk, int n) | |
1707 | { | ||
1708 | return D1<CD_6TH>::difference( | ||
1709 |
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8232 | grid.getValue(ijk.offsetBy( 3, 0, 0))[n], grid.getValue(ijk.offsetBy( 2, 0, 0))[n], |
1710 |
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8232 | grid.getValue(ijk.offsetBy( 1, 0, 0))[n], grid.getValue(ijk.offsetBy(-1, 0, 0))[n], |
1711 |
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24696 | grid.getValue(ijk.offsetBy(-2, 0, 0))[n], grid.getValue(ijk.offsetBy(-3, 0, 0))[n] ); |
1712 | } | ||
1713 | |||
1714 | template<typename Accessor> | ||
1715 | static typename Accessor::ValueType::value_type | ||
1716 | 8232 | inY(const Accessor& grid, const Coord& ijk, int n) | |
1717 | { | ||
1718 | return D1<CD_6TH>::difference( | ||
1719 |
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8232 | grid.getValue(ijk.offsetBy( 0, 3, 0))[n], grid.getValue(ijk.offsetBy( 0, 2, 0))[n], |
1720 |
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8232 | grid.getValue(ijk.offsetBy( 0, 1, 0))[n], grid.getValue(ijk.offsetBy( 0,-1, 0))[n], |
1721 |
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24696 | grid.getValue(ijk.offsetBy( 0,-2, 0))[n], grid.getValue(ijk.offsetBy( 0,-3, 0))[n] ); |
1722 | } | ||
1723 | |||
1724 | template<typename Accessor> | ||
1725 | static typename Accessor::ValueType::value_type | ||
1726 | 8232 | inZ(const Accessor& grid, const Coord& ijk, int n) | |
1727 | { | ||
1728 | return D1<CD_6TH>::difference( | ||
1729 |
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8232 | grid.getValue(ijk.offsetBy( 0, 0, 3))[n], grid.getValue(ijk.offsetBy( 0, 0, 2))[n], |
1730 |
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8232 | grid.getValue(ijk.offsetBy( 0, 0, 1))[n], grid.getValue(ijk.offsetBy( 0, 0,-1))[n], |
1731 |
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24696 | grid.getValue(ijk.offsetBy( 0, 0,-2))[n], grid.getValue(ijk.offsetBy( 0, 0,-3))[n] ); |
1732 | } | ||
1733 | |||
1734 | |||
1735 | // stencil access version | ||
1736 | template<typename Stencil> | ||
1737 |
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8232 | static typename Stencil::ValueType::value_type inX(const Stencil& S, int n) |
1738 | { | ||
1739 | return D1<CD_6TH>::difference( | ||
1740 | S.template getValue< 3, 0, 0>()[n], S.template getValue< 2, 0, 0>()[n], | ||
1741 | S.template getValue< 1, 0, 0>()[n], S.template getValue<-1, 0, 0>()[n], | ||
1742 | 8232 | S.template getValue<-2, 0, 0>()[n], S.template getValue<-3, 0, 0>()[n] ); | |
1743 | } | ||
1744 | |||
1745 | template<typename Stencil> | ||
1746 |
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8232 | static typename Stencil::ValueType::value_type inY(const Stencil& S, int n) |
1747 | { | ||
1748 | return D1<CD_6TH>::difference( | ||
1749 | S.template getValue< 0, 3, 0>()[n], S.template getValue< 0, 2, 0>()[n], | ||
1750 | S.template getValue< 0, 1, 0>()[n], S.template getValue< 0,-1, 0>()[n], | ||
1751 | 8232 | S.template getValue< 0,-2, 0>()[n], S.template getValue< 0,-3, 0>()[n] ); | |
1752 | } | ||
1753 | |||
1754 | template<typename Stencil> | ||
1755 |
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8232 | static typename Stencil::ValueType::value_type inZ(const Stencil& S, int n) |
1756 | { | ||
1757 | return D1<CD_6TH>::difference( | ||
1758 | S.template getValue< 0, 0, 3>()[n], S.template getValue< 0, 0, 2>()[n], | ||
1759 | S.template getValue< 0, 0, 1>()[n], S.template getValue< 0, 0,-1>()[n], | ||
1760 | 8232 | S.template getValue< 0, 0,-2>()[n], S.template getValue< 0, 0,-3>()[n] ); | |
1761 | } | ||
1762 | }; | ||
1763 | |||
1764 | template<DDScheme DiffScheme> | ||
1765 | struct D2 | ||
1766 | { | ||
1767 | |||
1768 | template<typename Accessor> | ||
1769 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk); | ||
1770 | template<typename Accessor> | ||
1771 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk); | ||
1772 | template<typename Accessor> | ||
1773 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk); | ||
1774 | |||
1775 | // cross derivatives | ||
1776 | template<typename Accessor> | ||
1777 | static typename Accessor::ValueType inXandY(const Accessor& grid, const Coord& ijk); | ||
1778 | |||
1779 | template<typename Accessor> | ||
1780 | static typename Accessor::ValueType inXandZ(const Accessor& grid, const Coord& ijk); | ||
1781 | |||
1782 | template<typename Accessor> | ||
1783 | static typename Accessor::ValueType inYandZ(const Accessor& grid, const Coord& ijk); | ||
1784 | |||
1785 | |||
1786 | // stencil access version | ||
1787 | template<typename Stencil> | ||
1788 | static typename Stencil::ValueType inX(const Stencil& S); | ||
1789 | template<typename Stencil> | ||
1790 | static typename Stencil::ValueType inY(const Stencil& S); | ||
1791 | template<typename Stencil> | ||
1792 | static typename Stencil::ValueType inZ(const Stencil& S); | ||
1793 | |||
1794 | // cross derivatives | ||
1795 | template<typename Stencil> | ||
1796 | static typename Stencil::ValueType inXandY(const Stencil& S); | ||
1797 | |||
1798 | template<typename Stencil> | ||
1799 | static typename Stencil::ValueType inXandZ(const Stencil& S); | ||
1800 | |||
1801 | template<typename Stencil> | ||
1802 | static typename Stencil::ValueType inYandZ(const Stencil& S); | ||
1803 | }; | ||
1804 | |||
1805 | template<> | ||
1806 | struct D2<CD_SECOND> | ||
1807 | { | ||
1808 | |||
1809 | // the difference opperator | ||
1810 | template <typename ValueType> | ||
1811 | static ValueType difference(const ValueType& xp1, const ValueType& xp0, const ValueType& xm1) | ||
1812 | { | ||
1813 | 789501 | return xp1 + xm1 - ValueType(2)*xp0; | |
1814 | } | ||
1815 | |||
1816 | template <typename ValueType> | ||
1817 | static ValueType crossdifference(const ValueType& xpyp, const ValueType& xpym, | ||
1818 | const ValueType& xmyp, const ValueType& xmym) | ||
1819 | { | ||
1820 | 789462 | return ValueType(0.25)*(xpyp + xmym - xpym - xmyp); | |
1821 | } | ||
1822 | |||
1823 | // random access version | ||
1824 | template<typename Accessor> | ||
1825 | 526318 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
1826 | { | ||
1827 | 526318 | return difference( grid.getValue(ijk.offsetBy( 1,0,0)), grid.getValue(ijk), | |
1828 | 526318 | grid.getValue(ijk.offsetBy(-1,0,0)) ); | |
1829 | } | ||
1830 | |||
1831 | template<typename Accessor> | ||
1832 | 526318 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
1833 | { | ||
1834 | |||
1835 | 526318 | return difference( grid.getValue(ijk.offsetBy(0, 1,0)), grid.getValue(ijk), | |
1836 | 526318 | grid.getValue(ijk.offsetBy(0,-1,0)) ); | |
1837 | } | ||
1838 | |||
1839 | template<typename Accessor> | ||
1840 | 526318 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
1841 | { | ||
1842 | 526318 | return difference( grid.getValue(ijk.offsetBy( 0,0, 1)), grid.getValue(ijk), | |
1843 | 526318 | grid.getValue(ijk.offsetBy( 0,0,-1)) ); | |
1844 | } | ||
1845 | |||
1846 | // cross derivatives | ||
1847 | template<typename Accessor> | ||
1848 | 526326 | static typename Accessor::ValueType inXandY(const Accessor& grid, const Coord& ijk) | |
1849 | { | ||
1850 | 526324 | return crossdifference( | |
1851 | 526326 | grid.getValue(ijk.offsetBy(1, 1,0)), grid.getValue(ijk.offsetBy( 1,-1,0)), | |
1852 | 526326 | grid.getValue(ijk.offsetBy(-1,1,0)), grid.getValue(ijk.offsetBy(-1,-1,0))); | |
1853 | |||
1854 | } | ||
1855 | |||
1856 | template<typename Accessor> | ||
1857 | 526326 | static typename Accessor::ValueType inXandZ(const Accessor& grid, const Coord& ijk) | |
1858 | { | ||
1859 | 526324 | return crossdifference( | |
1860 | 526326 | grid.getValue(ijk.offsetBy(1,0, 1)), grid.getValue(ijk.offsetBy(1, 0,-1)), | |
1861 | 526326 | grid.getValue(ijk.offsetBy(-1,0,1)), grid.getValue(ijk.offsetBy(-1,0,-1)) ); | |
1862 | } | ||
1863 | |||
1864 | template<typename Accessor> | ||
1865 | 263176 | static typename Accessor::ValueType inYandZ(const Accessor& grid, const Coord& ijk) | |
1866 | { | ||
1867 | 263174 | return crossdifference( | |
1868 | 263176 | grid.getValue(ijk.offsetBy(0, 1,1)), grid.getValue(ijk.offsetBy(0, 1,-1)), | |
1869 | 263176 | grid.getValue(ijk.offsetBy(0,-1,1)), grid.getValue(ijk.offsetBy(0,-1,-1)) ); | |
1870 | } | ||
1871 | |||
1872 | |||
1873 | // stencil access version | ||
1874 | template<typename Stencil> | ||
1875 | static typename Stencil::ValueType inX(const Stencil& S) | ||
1876 | { | ||
1877 | return difference( S.template getValue< 1, 0, 0>(), S.template getValue< 0, 0, 0>(), | ||
1878 | S.template getValue<-1, 0, 0>() ); | ||
1879 | } | ||
1880 | |||
1881 | template<typename Stencil> | ||
1882 | static typename Stencil::ValueType inY(const Stencil& S) | ||
1883 | { | ||
1884 | return difference( S.template getValue< 0, 1, 0>(), S.template getValue< 0, 0, 0>(), | ||
1885 | S.template getValue< 0,-1, 0>() ); | ||
1886 | } | ||
1887 | |||
1888 | template<typename Stencil> | ||
1889 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
1890 | { | ||
1891 | return difference( S.template getValue< 0, 0, 1>(), S.template getValue< 0, 0, 0>(), | ||
1892 | S.template getValue< 0, 0,-1>() ); | ||
1893 | } | ||
1894 | |||
1895 | // cross derivatives | ||
1896 | template<typename Stencil> | ||
1897 | static typename Stencil::ValueType inXandY(const Stencil& S) | ||
1898 | { | ||
1899 | return crossdifference(S.template getValue< 1, 1, 0>(), S.template getValue< 1,-1, 0>(), | ||
1900 | S.template getValue<-1, 1, 0>(), S.template getValue<-1,-1, 0>() ); | ||
1901 | } | ||
1902 | |||
1903 | template<typename Stencil> | ||
1904 | static typename Stencil::ValueType inXandZ(const Stencil& S) | ||
1905 | { | ||
1906 | return crossdifference(S.template getValue< 1, 0, 1>(), S.template getValue< 1, 0,-1>(), | ||
1907 | S.template getValue<-1, 0, 1>(), S.template getValue<-1, 0,-1>() ); | ||
1908 | } | ||
1909 | |||
1910 | template<typename Stencil> | ||
1911 | static typename Stencil::ValueType inYandZ(const Stencil& S) | ||
1912 | { | ||
1913 | return crossdifference(S.template getValue< 0, 1, 1>(), S.template getValue< 0, 1,-1>(), | ||
1914 | S.template getValue< 0,-1, 1>(), S.template getValue< 0,-1,-1>() ); | ||
1915 | } | ||
1916 | }; | ||
1917 | |||
1918 | |||
1919 | template<> | ||
1920 | struct D2<CD_FOURTH> | ||
1921 | { | ||
1922 | |||
1923 | // the difference opperator | ||
1924 | template <typename ValueType> | ||
1925 | static ValueType difference(const ValueType& xp2, const ValueType& xp1, const ValueType& xp0, | ||
1926 | const ValueType& xm1, const ValueType& xm2) { | ||
1927 | 9 | return ValueType(-1./12.)*(xp2 + xm2) + ValueType(4./3.)*(xp1 + xm1) -ValueType(2.5)*xp0; | |
1928 | } | ||
1929 | |||
1930 | template <typename ValueType> | ||
1931 | static ValueType crossdifference(const ValueType& xp2yp2, const ValueType& xp2yp1, | ||
1932 | const ValueType& xp2ym1, const ValueType& xp2ym2, | ||
1933 | const ValueType& xp1yp2, const ValueType& xp1yp1, | ||
1934 | const ValueType& xp1ym1, const ValueType& xp1ym2, | ||
1935 | const ValueType& xm2yp2, const ValueType& xm2yp1, | ||
1936 | const ValueType& xm2ym1, const ValueType& xm2ym2, | ||
1937 | const ValueType& xm1yp2, const ValueType& xm1yp1, | ||
1938 | const ValueType& xm1ym1, const ValueType& xm1ym2 ) { | ||
1939 | 27 | ValueType tmp1 = | |
1940 | 27 | ValueType(2./3.0)*(xp1yp1 - xm1yp1 - xp1ym1 + xm1ym1)- | |
1941 | 27 | ValueType(1./12.)*(xp2yp1 - xm2yp1 - xp2ym1 + xm2ym1); | |
1942 | 27 | ValueType tmp2 = | |
1943 | 27 | ValueType(2./3.0)*(xp1yp2 - xm1yp2 - xp1ym2 + xm1ym2)- | |
1944 | 27 | ValueType(1./12.)*(xp2yp2 - xm2yp2 - xp2ym2 + xm2ym2); | |
1945 | |||
1946 | 27 | return ValueType(2./3.)*tmp1 - ValueType(1./12.)*tmp2; | |
1947 | } | ||
1948 | |||
1949 | |||
1950 | |||
1951 | // random access version | ||
1952 | template<typename Accessor> | ||
1953 | 9 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
1954 | { | ||
1955 | 18 | return difference( | |
1956 | 9 | grid.getValue(ijk.offsetBy(2,0,0)), grid.getValue(ijk.offsetBy( 1,0,0)), | |
1957 | grid.getValue(ijk), | ||
1958 | 9 | grid.getValue(ijk.offsetBy(-1,0,0)), grid.getValue(ijk.offsetBy(-2, 0, 0))); | |
1959 | } | ||
1960 | |||
1961 | template<typename Accessor> | ||
1962 | 9 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
1963 | { | ||
1964 | 18 | return difference( | |
1965 | 9 | grid.getValue(ijk.offsetBy(0, 2,0)), grid.getValue(ijk.offsetBy(0, 1,0)), | |
1966 | grid.getValue(ijk), | ||
1967 | 9 | grid.getValue(ijk.offsetBy(0,-1,0)), grid.getValue(ijk.offsetBy(0,-2, 0))); | |
1968 | } | ||
1969 | |||
1970 | template<typename Accessor> | ||
1971 | 9 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
1972 | { | ||
1973 | 18 | return difference( | |
1974 | 9 | grid.getValue(ijk.offsetBy(0,0, 2)), grid.getValue(ijk.offsetBy(0, 0,1)), | |
1975 | grid.getValue(ijk), | ||
1976 | 9 | grid.getValue(ijk.offsetBy(0,0,-1)), grid.getValue(ijk.offsetBy(0,0,-2))); | |
1977 | } | ||
1978 | |||
1979 | // cross derivatives | ||
1980 | template<typename Accessor> | ||
1981 | 9 | static typename Accessor::ValueType inXandY(const Accessor& grid, const Coord& ijk) | |
1982 | { | ||
1983 | using ValueType = typename Accessor::ValueType; | ||
1984 | 9 | typename Accessor::ValueType tmp1 = | |
1985 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0, 1, 0)) - | |
1986 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0,-1, 0)); | |
1987 | 9 | typename Accessor::ValueType tmp2 = | |
1988 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0, 2, 0)) - | |
1989 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0,-2, 0)); | |
1990 | 9 | return ValueType(2./3.)*tmp1 - ValueType(1./12.)*tmp2; | |
1991 | } | ||
1992 | |||
1993 | template<typename Accessor> | ||
1994 | 9 | static typename Accessor::ValueType inXandZ(const Accessor& grid, const Coord& ijk) | |
1995 | { | ||
1996 | using ValueType = typename Accessor::ValueType; | ||
1997 | 9 | typename Accessor::ValueType tmp1 = | |
1998 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0, 0, 1)) - | |
1999 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0, 0,-1)); | |
2000 | 9 | typename Accessor::ValueType tmp2 = | |
2001 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0, 0, 2)) - | |
2002 | 9 | D1<CD_4TH>::inX(grid, ijk.offsetBy(0, 0,-2)); | |
2003 | 9 | return ValueType(2./3.)*tmp1 - ValueType(1./12.)*tmp2; | |
2004 | } | ||
2005 | |||
2006 | template<typename Accessor> | ||
2007 | 9 | static typename Accessor::ValueType inYandZ(const Accessor& grid, const Coord& ijk) | |
2008 | { | ||
2009 | using ValueType = typename Accessor::ValueType; | ||
2010 | 9 | typename Accessor::ValueType tmp1 = | |
2011 | 9 | D1<CD_4TH>::inY(grid, ijk.offsetBy(0, 0, 1)) - | |
2012 | 9 | D1<CD_4TH>::inY(grid, ijk.offsetBy(0, 0,-1)); | |
2013 | 9 | typename Accessor::ValueType tmp2 = | |
2014 | 9 | D1<CD_4TH>::inY(grid, ijk.offsetBy(0, 0, 2)) - | |
2015 | 9 | D1<CD_4TH>::inY(grid, ijk.offsetBy(0, 0,-2)); | |
2016 | 9 | return ValueType(2./3.)*tmp1 - ValueType(1./12.)*tmp2; | |
2017 | } | ||
2018 | |||
2019 | |||
2020 | // stencil access version | ||
2021 | template<typename Stencil> | ||
2022 | static typename Stencil::ValueType inX(const Stencil& S) | ||
2023 | { | ||
2024 | return difference(S.template getValue< 2, 0, 0>(), S.template getValue< 1, 0, 0>(), | ||
2025 | S.template getValue< 0, 0, 0>(), | ||
2026 | S.template getValue<-1, 0, 0>(), S.template getValue<-2, 0, 0>() ); | ||
2027 | } | ||
2028 | |||
2029 | template<typename Stencil> | ||
2030 | static typename Stencil::ValueType inY(const Stencil& S) | ||
2031 | { | ||
2032 | return difference(S.template getValue< 0, 2, 0>(), S.template getValue< 0, 1, 0>(), | ||
2033 | S.template getValue< 0, 0, 0>(), | ||
2034 | S.template getValue< 0,-1, 0>(), S.template getValue< 0,-2, 0>() ); | ||
2035 | } | ||
2036 | |||
2037 | template<typename Stencil> | ||
2038 | static typename Stencil::ValueType inZ(const Stencil& S) | ||
2039 | { | ||
2040 | return difference(S.template getValue< 0, 0, 2>(), S.template getValue< 0, 0, 1>(), | ||
2041 | S.template getValue< 0, 0, 0>(), | ||
2042 | S.template getValue< 0, 0,-1>(), S.template getValue< 0, 0,-2>() ); | ||
2043 | } | ||
2044 | |||
2045 | // cross derivatives | ||
2046 | template<typename Stencil> | ||
2047 | 9 | static typename Stencil::ValueType inXandY(const Stencil& S) | |
2048 | { | ||
2049 | return crossdifference( | ||
2050 | S.template getValue< 2, 2, 0>(), S.template getValue< 2, 1, 0>(), | ||
2051 | S.template getValue< 2,-1, 0>(), S.template getValue< 2,-2, 0>(), | ||
2052 | S.template getValue< 1, 2, 0>(), S.template getValue< 1, 1, 0>(), | ||
2053 | S.template getValue< 1,-1, 0>(), S.template getValue< 1,-2, 0>(), | ||
2054 | S.template getValue<-2, 2, 0>(), S.template getValue<-2, 1, 0>(), | ||
2055 | S.template getValue<-2,-1, 0>(), S.template getValue<-2,-2, 0>(), | ||
2056 | S.template getValue<-1, 2, 0>(), S.template getValue<-1, 1, 0>(), | ||
2057 | 9 | S.template getValue<-1,-1, 0>(), S.template getValue<-1,-2, 0>() ); | |
2058 | } | ||
2059 | |||
2060 | template<typename Stencil> | ||
2061 | 9 | static typename Stencil::ValueType inXandZ(const Stencil& S) | |
2062 | { | ||
2063 | return crossdifference( | ||
2064 | S.template getValue< 2, 0, 2>(), S.template getValue< 2, 0, 1>(), | ||
2065 | S.template getValue< 2, 0,-1>(), S.template getValue< 2, 0,-2>(), | ||
2066 | S.template getValue< 1, 0, 2>(), S.template getValue< 1, 0, 1>(), | ||
2067 | S.template getValue< 1, 0,-1>(), S.template getValue< 1, 0,-2>(), | ||
2068 | S.template getValue<-2, 0, 2>(), S.template getValue<-2, 0, 1>(), | ||
2069 | S.template getValue<-2, 0,-1>(), S.template getValue<-2, 0,-2>(), | ||
2070 | S.template getValue<-1, 0, 2>(), S.template getValue<-1, 0, 1>(), | ||
2071 | 9 | S.template getValue<-1, 0,-1>(), S.template getValue<-1, 0,-2>() ); | |
2072 | } | ||
2073 | |||
2074 | template<typename Stencil> | ||
2075 | 9 | static typename Stencil::ValueType inYandZ(const Stencil& S) | |
2076 | { | ||
2077 | return crossdifference( | ||
2078 | S.template getValue< 0, 2, 2>(), S.template getValue< 0, 2, 1>(), | ||
2079 | S.template getValue< 0, 2,-1>(), S.template getValue< 0, 2,-2>(), | ||
2080 | S.template getValue< 0, 1, 2>(), S.template getValue< 0, 1, 1>(), | ||
2081 | S.template getValue< 0, 1,-1>(), S.template getValue< 0, 1,-2>(), | ||
2082 | S.template getValue< 0,-2, 2>(), S.template getValue< 0,-2, 1>(), | ||
2083 | S.template getValue< 0,-2,-1>(), S.template getValue< 0,-2,-2>(), | ||
2084 | S.template getValue< 0,-1, 2>(), S.template getValue< 0,-1, 1>(), | ||
2085 | 9 | S.template getValue< 0,-1,-1>(), S.template getValue< 0,-1,-2>() ); | |
2086 | } | ||
2087 | }; | ||
2088 | |||
2089 | |||
2090 | template<> | ||
2091 | struct D2<CD_SIXTH> | ||
2092 | { | ||
2093 | // the difference opperator | ||
2094 | template <typename ValueType> | ||
2095 | static ValueType difference(const ValueType& xp3, const ValueType& xp2, const ValueType& xp1, | ||
2096 | const ValueType& xp0, | ||
2097 | const ValueType& xm1, const ValueType& xm2, const ValueType& xm3) | ||
2098 | { | ||
2099 | 48 | return ValueType(1./90.)*(xp3 + xm3) - ValueType(3./20.)*(xp2 + xm2) | |
2100 | 48 | + ValueType(1.5)*(xp1 + xm1) - ValueType(49./18.)*xp0; | |
2101 | } | ||
2102 | |||
2103 | template <typename ValueType> | ||
2104 | 24 | static ValueType crossdifference( const ValueType& xp1yp1,const ValueType& xm1yp1, | |
2105 | const ValueType& xp1ym1,const ValueType& xm1ym1, | ||
2106 | const ValueType& xp2yp1,const ValueType& xm2yp1, | ||
2107 | const ValueType& xp2ym1,const ValueType& xm2ym1, | ||
2108 | const ValueType& xp3yp1,const ValueType& xm3yp1, | ||
2109 | const ValueType& xp3ym1,const ValueType& xm3ym1, | ||
2110 | const ValueType& xp1yp2,const ValueType& xm1yp2, | ||
2111 | const ValueType& xp1ym2,const ValueType& xm1ym2, | ||
2112 | const ValueType& xp2yp2,const ValueType& xm2yp2, | ||
2113 | const ValueType& xp2ym2,const ValueType& xm2ym2, | ||
2114 | const ValueType& xp3yp2,const ValueType& xm3yp2, | ||
2115 | const ValueType& xp3ym2,const ValueType& xm3ym2, | ||
2116 | const ValueType& xp1yp3,const ValueType& xm1yp3, | ||
2117 | const ValueType& xp1ym3,const ValueType& xm1ym3, | ||
2118 | const ValueType& xp2yp3,const ValueType& xm2yp3, | ||
2119 | const ValueType& xp2ym3,const ValueType& xm2ym3, | ||
2120 | const ValueType& xp3yp3,const ValueType& xm3yp3, | ||
2121 | const ValueType& xp3ym3,const ValueType& xm3ym3 ) | ||
2122 | { | ||
2123 | 24 | ValueType tmp1 = | |
2124 | 24 | ValueType(0.7500)*(xp1yp1 - xm1yp1 - xp1ym1 + xm1ym1) - | |
2125 | 24 | ValueType(0.1500)*(xp2yp1 - xm2yp1 - xp2ym1 + xm2ym1) + | |
2126 | 24 | ValueType(1./60.)*(xp3yp1 - xm3yp1 - xp3ym1 + xm3ym1); | |
2127 | |||
2128 | 24 | ValueType tmp2 = | |
2129 | 24 | ValueType(0.7500)*(xp1yp2 - xm1yp2 - xp1ym2 + xm1ym2) - | |
2130 | 24 | ValueType(0.1500)*(xp2yp2 - xm2yp2 - xp2ym2 + xm2ym2) + | |
2131 | 24 | ValueType(1./60.)*(xp3yp2 - xm3yp2 - xp3ym2 + xm3ym2); | |
2132 | |||
2133 | 24 | ValueType tmp3 = | |
2134 | 24 | ValueType(0.7500)*(xp1yp3 - xm1yp3 - xp1ym3 + xm1ym3) - | |
2135 | 24 | ValueType(0.1500)*(xp2yp3 - xm2yp3 - xp2ym3 + xm2ym3) + | |
2136 | 24 | ValueType(1./60.)*(xp3yp3 - xm3yp3 - xp3ym3 + xm3ym3); | |
2137 | |||
2138 | 24 | return ValueType(0.75)*tmp1 - ValueType(0.15)*tmp2 + ValueType(1./60)*tmp3; | |
2139 | } | ||
2140 | |||
2141 | // random access version | ||
2142 | |||
2143 | template<typename Accessor> | ||
2144 | 8 | static typename Accessor::ValueType inX(const Accessor& grid, const Coord& ijk) | |
2145 | { | ||
2146 | 16 | return difference( | |
2147 | 8 | grid.getValue(ijk.offsetBy( 3, 0, 0)), grid.getValue(ijk.offsetBy( 2, 0, 0)), | |
2148 | 8 | grid.getValue(ijk.offsetBy( 1, 0, 0)), grid.getValue(ijk), | |
2149 | 8 | grid.getValue(ijk.offsetBy(-1, 0, 0)), grid.getValue(ijk.offsetBy(-2, 0, 0)), | |
2150 | 8 | grid.getValue(ijk.offsetBy(-3, 0, 0)) ); | |
2151 | } | ||
2152 | |||
2153 | template<typename Accessor> | ||
2154 | 8 | static typename Accessor::ValueType inY(const Accessor& grid, const Coord& ijk) | |
2155 | { | ||
2156 | 16 | return difference( | |
2157 | 8 | grid.getValue(ijk.offsetBy( 0, 3, 0)), grid.getValue(ijk.offsetBy( 0, 2, 0)), | |
2158 | 8 | grid.getValue(ijk.offsetBy( 0, 1, 0)), grid.getValue(ijk), | |
2159 | 8 | grid.getValue(ijk.offsetBy( 0,-1, 0)), grid.getValue(ijk.offsetBy( 0,-2, 0)), | |
2160 | 8 | grid.getValue(ijk.offsetBy( 0,-3, 0)) ); | |
2161 | } | ||
2162 | |||
2163 | template<typename Accessor> | ||
2164 | 8 | static typename Accessor::ValueType inZ(const Accessor& grid, const Coord& ijk) | |
2165 | { | ||
2166 | |||
2167 | 16 | return difference( | |
2168 | 8 | grid.getValue(ijk.offsetBy( 0, 0, 3)), grid.getValue(ijk.offsetBy( 0, 0, 2)), | |
2169 | 8 | grid.getValue(ijk.offsetBy( 0, 0, 1)), grid.getValue(ijk), | |
2170 | 8 | grid.getValue(ijk.offsetBy( 0, 0,-1)), grid.getValue(ijk.offsetBy( 0, 0,-2)), | |
2171 | 8 | grid.getValue(ijk.offsetBy( 0, 0,-3)) ); | |
2172 | } | ||
2173 | |||
2174 | template<typename Accessor> | ||
2175 | 8 | static typename Accessor::ValueType inXandY(const Accessor& grid, const Coord& ijk) | |
2176 | { | ||
2177 | using ValueT = typename Accessor::ValueType; | ||
2178 | 8 | ValueT tmp1 = | |
2179 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 1, 0)) - | |
2180 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0,-1, 0)); | |
2181 | 8 | ValueT tmp2 = | |
2182 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 2, 0)) - | |
2183 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0,-2, 0)); | |
2184 | 8 | ValueT tmp3 = | |
2185 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 3, 0)) - | |
2186 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0,-3, 0)); | |
2187 | 8 | return ValueT(0.75*tmp1 - 0.15*tmp2 + 1./60*tmp3); | |
2188 | } | ||
2189 | |||
2190 | template<typename Accessor> | ||
2191 | 8 | static typename Accessor::ValueType inXandZ(const Accessor& grid, const Coord& ijk) | |
2192 | { | ||
2193 | using ValueT = typename Accessor::ValueType; | ||
2194 | 8 | ValueT tmp1 = | |
2195 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 0, 1)) - | |
2196 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 0,-1)); | |
2197 | 8 | ValueT tmp2 = | |
2198 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 0, 2)) - | |
2199 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 0,-2)); | |
2200 | 8 | ValueT tmp3 = | |
2201 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 0, 3)) - | |
2202 | 8 | D1<CD_6TH>::inX(grid, ijk.offsetBy(0, 0,-3)); | |
2203 | 8 | return ValueT(0.75*tmp1 - 0.15*tmp2 + 1./60*tmp3); | |
2204 | } | ||
2205 | |||
2206 | template<typename Accessor> | ||
2207 | 8 | static typename Accessor::ValueType inYandZ(const Accessor& grid, const Coord& ijk) | |
2208 | { | ||
2209 | using ValueT = typename Accessor::ValueType; | ||
2210 | 8 | ValueT tmp1 = | |
2211 | 8 | D1<CD_6TH>::inY(grid, ijk.offsetBy(0, 0, 1)) - | |
2212 | 8 | D1<CD_6TH>::inY(grid, ijk.offsetBy(0, 0,-1)); | |
2213 | 8 | ValueT tmp2 = | |
2214 | 8 | D1<CD_6TH>::inY(grid, ijk.offsetBy(0, 0, 2)) - | |
2215 | 8 | D1<CD_6TH>::inY(grid, ijk.offsetBy(0, 0,-2)); | |
2216 | 8 | ValueT tmp3 = | |
2217 | 8 | D1<CD_6TH>::inY(grid, ijk.offsetBy(0, 0, 3)) - | |
2218 | 8 | D1<CD_6TH>::inY(grid, ijk.offsetBy(0, 0,-3)); | |
2219 | 8 | return ValueT(0.75*tmp1 - 0.15*tmp2 + 1./60*tmp3); | |
2220 | } | ||
2221 | |||
2222 | |||
2223 | // stencil access version | ||
2224 | template<typename Stencil> | ||
2225 | 8 | static typename Stencil::ValueType inX(const Stencil& S) | |
2226 | { | ||
2227 | return difference( S.template getValue< 3, 0, 0>(), S.template getValue< 2, 0, 0>(), | ||
2228 | S.template getValue< 1, 0, 0>(), S.template getValue< 0, 0, 0>(), | ||
2229 | S.template getValue<-1, 0, 0>(), S.template getValue<-2, 0, 0>(), | ||
2230 | 8 | S.template getValue<-3, 0, 0>() ); | |
2231 | } | ||
2232 | |||
2233 | template<typename Stencil> | ||
2234 | 8 | static typename Stencil::ValueType inY(const Stencil& S) | |
2235 | { | ||
2236 | return difference( S.template getValue< 0, 3, 0>(), S.template getValue< 0, 2, 0>(), | ||
2237 | S.template getValue< 0, 1, 0>(), S.template getValue< 0, 0, 0>(), | ||
2238 | S.template getValue< 0,-1, 0>(), S.template getValue< 0,-2, 0>(), | ||
2239 | 8 | S.template getValue< 0,-3, 0>() ); | |
2240 | |||
2241 | } | ||
2242 | |||
2243 | template<typename Stencil> | ||
2244 | 8 | static typename Stencil::ValueType inZ(const Stencil& S) | |
2245 | { | ||
2246 | return difference( S.template getValue< 0, 0, 3>(), S.template getValue< 0, 0, 2>(), | ||
2247 | S.template getValue< 0, 0, 1>(), S.template getValue< 0, 0, 0>(), | ||
2248 | S.template getValue< 0, 0,-1>(), S.template getValue< 0, 0,-2>(), | ||
2249 | 8 | S.template getValue< 0, 0,-3>() ); | |
2250 | } | ||
2251 | |||
2252 | template<typename Stencil> | ||
2253 | 8 | static typename Stencil::ValueType inXandY(const Stencil& S) | |
2254 | { | ||
2255 | 8 | return crossdifference( S.template getValue< 1, 1, 0>(), S.template getValue<-1, 1, 0>(), | |
2256 | S.template getValue< 1,-1, 0>(), S.template getValue<-1,-1, 0>(), | ||
2257 | S.template getValue< 2, 1, 0>(), S.template getValue<-2, 1, 0>(), | ||
2258 | S.template getValue< 2,-1, 0>(), S.template getValue<-2,-1, 0>(), | ||
2259 | S.template getValue< 3, 1, 0>(), S.template getValue<-3, 1, 0>(), | ||
2260 | S.template getValue< 3,-1, 0>(), S.template getValue<-3,-1, 0>(), | ||
2261 | S.template getValue< 1, 2, 0>(), S.template getValue<-1, 2, 0>(), | ||
2262 | S.template getValue< 1,-2, 0>(), S.template getValue<-1,-2, 0>(), | ||
2263 | S.template getValue< 2, 2, 0>(), S.template getValue<-2, 2, 0>(), | ||
2264 | S.template getValue< 2,-2, 0>(), S.template getValue<-2,-2, 0>(), | ||
2265 | S.template getValue< 3, 2, 0>(), S.template getValue<-3, 2, 0>(), | ||
2266 | S.template getValue< 3,-2, 0>(), S.template getValue<-3,-2, 0>(), | ||
2267 | S.template getValue< 1, 3, 0>(), S.template getValue<-1, 3, 0>(), | ||
2268 | S.template getValue< 1,-3, 0>(), S.template getValue<-1,-3, 0>(), | ||
2269 | S.template getValue< 2, 3, 0>(), S.template getValue<-2, 3, 0>(), | ||
2270 | S.template getValue< 2,-3, 0>(), S.template getValue<-2,-3, 0>(), | ||
2271 | S.template getValue< 3, 3, 0>(), S.template getValue<-3, 3, 0>(), | ||
2272 | 8 | S.template getValue< 3,-3, 0>(), S.template getValue<-3,-3, 0>() ); | |
2273 | } | ||
2274 | |||
2275 | template<typename Stencil> | ||
2276 | 8 | static typename Stencil::ValueType inXandZ(const Stencil& S) | |
2277 | { | ||
2278 | 8 | return crossdifference( S.template getValue< 1, 0, 1>(), S.template getValue<-1, 0, 1>(), | |
2279 | S.template getValue< 1, 0,-1>(), S.template getValue<-1, 0,-1>(), | ||
2280 | S.template getValue< 2, 0, 1>(), S.template getValue<-2, 0, 1>(), | ||
2281 | S.template getValue< 2, 0,-1>(), S.template getValue<-2, 0,-1>(), | ||
2282 | S.template getValue< 3, 0, 1>(), S.template getValue<-3, 0, 1>(), | ||
2283 | S.template getValue< 3, 0,-1>(), S.template getValue<-3, 0,-1>(), | ||
2284 | S.template getValue< 1, 0, 2>(), S.template getValue<-1, 0, 2>(), | ||
2285 | S.template getValue< 1, 0,-2>(), S.template getValue<-1, 0,-2>(), | ||
2286 | S.template getValue< 2, 0, 2>(), S.template getValue<-2, 0, 2>(), | ||
2287 | S.template getValue< 2, 0,-2>(), S.template getValue<-2, 0,-2>(), | ||
2288 | S.template getValue< 3, 0, 2>(), S.template getValue<-3, 0, 2>(), | ||
2289 | S.template getValue< 3, 0,-2>(), S.template getValue<-3, 0,-2>(), | ||
2290 | S.template getValue< 1, 0, 3>(), S.template getValue<-1, 0, 3>(), | ||
2291 | S.template getValue< 1, 0,-3>(), S.template getValue<-1, 0,-3>(), | ||
2292 | S.template getValue< 2, 0, 3>(), S.template getValue<-2, 0, 3>(), | ||
2293 | S.template getValue< 2, 0,-3>(), S.template getValue<-2, 0,-3>(), | ||
2294 | S.template getValue< 3, 0, 3>(), S.template getValue<-3, 0, 3>(), | ||
2295 | 8 | S.template getValue< 3, 0,-3>(), S.template getValue<-3, 0,-3>() ); | |
2296 | } | ||
2297 | |||
2298 | template<typename Stencil> | ||
2299 | 8 | static typename Stencil::ValueType inYandZ(const Stencil& S) | |
2300 | { | ||
2301 | 8 | return crossdifference( S.template getValue< 0, 1, 1>(), S.template getValue< 0,-1, 1>(), | |
2302 | S.template getValue< 0, 1,-1>(), S.template getValue< 0,-1,-1>(), | ||
2303 | S.template getValue< 0, 2, 1>(), S.template getValue< 0,-2, 1>(), | ||
2304 | S.template getValue< 0, 2,-1>(), S.template getValue< 0,-2,-1>(), | ||
2305 | S.template getValue< 0, 3, 1>(), S.template getValue< 0,-3, 1>(), | ||
2306 | S.template getValue< 0, 3,-1>(), S.template getValue< 0,-3,-1>(), | ||
2307 | S.template getValue< 0, 1, 2>(), S.template getValue< 0,-1, 2>(), | ||
2308 | S.template getValue< 0, 1,-2>(), S.template getValue< 0,-1,-2>(), | ||
2309 | S.template getValue< 0, 2, 2>(), S.template getValue< 0,-2, 2>(), | ||
2310 | S.template getValue< 0, 2,-2>(), S.template getValue< 0,-2,-2>(), | ||
2311 | S.template getValue< 0, 3, 2>(), S.template getValue< 0,-3, 2>(), | ||
2312 | S.template getValue< 0, 3,-2>(), S.template getValue< 0,-3,-2>(), | ||
2313 | S.template getValue< 0, 1, 3>(), S.template getValue< 0,-1, 3>(), | ||
2314 | S.template getValue< 0, 1,-3>(), S.template getValue< 0,-1,-3>(), | ||
2315 | S.template getValue< 0, 2, 3>(), S.template getValue< 0,-2, 3>(), | ||
2316 | S.template getValue< 0, 2,-3>(), S.template getValue< 0,-2,-3>(), | ||
2317 | S.template getValue< 0, 3, 3>(), S.template getValue< 0,-3, 3>(), | ||
2318 | 8 | S.template getValue< 0, 3,-3>(), S.template getValue< 0,-3,-3>() ); | |
2319 | } | ||
2320 | |||
2321 | }; | ||
2322 | |||
2323 | } // end math namespace | ||
2324 | } // namespace OPENVDB_VERSION_NAME | ||
2325 | } // end openvdb namespace | ||
2326 | |||
2327 | #endif // OPENVDB_MATH_FINITEDIFFERENCE_HAS_BEEN_INCLUDED | ||
2328 |