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PiecewiseLinearFillPatch.H

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00051 
00052 #ifndef _PIECEWISELINEARFILLPATCH_H_
00053 #define _PIECEWISELINEARFILLPATCH_H_
00054 
00055 #include <iostream>
00056 #include <fstream>
00057 #include "REAL.H"
00058 #include "Box.H"
00059 #include "FArrayBox.H"
00060 #include "LevelData.H"
00061 #include "IntVectSet.H"
00062 #include "ProblemDomain.H"
00063 
00065 
00163 class PiecewiseLinearFillPatch
00164 {
00165 public:
00167 
00170   PiecewiseLinearFillPatch();
00171 
00173 
00176   ~PiecewiseLinearFillPatch();
00177 
00179 
00190   PiecewiseLinearFillPatch(const DisjointBoxLayout& a_fine_domain,
00191                            const DisjointBoxLayout& a_coarse_domain,
00192                            int a_num_comps,
00193                            const Box& a_crse_problem_domain,
00194                            int a_ref_ratio,
00195                            int a_interp_radius
00196                            );
00197 
00199 
00210   PiecewiseLinearFillPatch(const DisjointBoxLayout& a_fine_domain,
00211                            const DisjointBoxLayout& a_coarse_domain,
00212                            int a_num_comps,
00213                            const ProblemDomain& a_crse_problem_domain,
00214                            int a_ref_ratio,
00215                            int a_interp_radius
00216                            );
00217 
00219 
00235   void
00236   define(const DisjointBoxLayout& a_fine_domain,
00237          const DisjointBoxLayout& a_coarse_domain,
00238          int a_num_comps,
00239          const Box& a_crse_problem_domain,
00240          int a_ref_ratio,
00241          int a_interp_radius
00242          );
00243 
00245 
00261   void
00262   define(const DisjointBoxLayout& a_fine_domain,
00263          const DisjointBoxLayout& a_coarse_domain,
00264          int a_num_comps,
00265          const ProblemDomain& a_crse_problem_domain,
00266          int a_ref_ratio,
00267          int a_interp_radius
00268          );
00269 
00271 
00278   bool
00279   isDefined() const;
00280 
00282 
00307   void
00308   fillInterp(LevelData<FArrayBox>& a_fine_data,
00309              const LevelData<FArrayBox>& a_old_coarse_data,
00310              const LevelData<FArrayBox>& a_new_coarse_data,
00311              Real a_time_interp_coef,
00312              int a_src_comp,
00313              int a_dest_comp,
00314              int a_num_comp
00315              );
00316 
00317   // debugging utilities
00318   void
00319   printIntVectSets() const;
00320 
00321 
00322 protected:
00323   // copy coarse data to coarsened fine work array and interpolate to
00324   // fine time level
00325   void
00326   timeInterp(const LevelData<FArrayBox>& a_old_coarse_data,
00327              const LevelData<FArrayBox>& a_new_coarse_data,
00328              Real a_time_interp_coef,
00329              int a_src_comp,
00330              int a_dest_comp,
00331              int a_num_comp
00332              );
00333 
00334   // fill the fine interpolation sites piecewise-constantly
00335   void
00336   fillConstantInterp(LevelData<FArrayBox>& a_fine_data,
00337                      int a_src_comp,
00338                      int a_dest_comp,
00339                      int a_num_comp
00340                      )
00341     const;
00342 
00343   // compute slopes in specified direction
00344   void
00345   computeSlopes(int a_src_comp,
00346                 int a_num_comp);
00347 
00348   // increment the fine interpolation sites with linear term for the
00349   // specified coordinate direction
00350   void
00351   incrementLinearInterp(LevelData<FArrayBox>& a_fine_data,
00352                         int a_src_comp,
00353                         int a_dest_comp,
00354                         int a_num_comp)
00355     const;
00356 
00357 
00358 protected:
00359   bool m_is_defined;
00360   // the radius of the interpolation stencil.  e.g. a stencil using
00361   // (i-1,j), (i,j) and (i+1,j) has a radius of 1.
00362   static const int s_stencil_radius;
00363   // refinement ratio
00364   int m_ref_ratio;
00365   // number of layers of fine ghost cells to fill by interpolation.
00366   int m_interp_radius;
00367   // work array for coarse data in grids shaped like the fine level.
00368   LevelData<FArrayBox> m_coarsened_fine_data;
00369   // work array for slopes
00370   LevelData<FArrayBox> m_slopes[3];
00371   // problem domain on the coarse level.
00372   ProblemDomain m_crse_problem_domain;
00373   // per-grid fine locations that you interpolate to.
00374   LayoutData<IntVectSet> m_fine_interp;
00375   // per-grid coarse locations that you interpolate from, by type of
00376   // interpolation in the specified coordinate direction.
00377   LayoutData<IntVectSet> m_coarse_centered_interp[SpaceDim];
00378   LayoutData<IntVectSet> m_coarse_lo_interp[SpaceDim];
00379   LayoutData<IntVectSet> m_coarse_hi_interp[SpaceDim];
00380 };
00381 
00382 #endif

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