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    引言: #ifndef _MappedGrid#define _Mapp
 

 

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MappedGrid.h 注释

#ifndef _mappedgrid

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//

// who to blame:  geoff chesshire

//

#include "genericgrid.h"

#include "mappedgridfunction.h"

#include "mappingrc.h"

#include "box.h"

#include "gcmath.h"

// #include "databaseaccessfunctions.h" // cannot include this here.

int initializemappinglist();

int destructmappinglist();

class amr_parentchildsiblinginfo;

//

//  class for reference-counted data.

//  mappedgrid类的核心数据,被单独的作为一个类管理

class mappedgriddata:

  public genericgriddata {

  public:

// 作为数据更新操作的计算选项的枚举变量及其一些bit组合

    enum {

      themask                    = endthegenericgriddata,           // bit  0

      theinversevertexderivative = themask                    << 1, // bit  1

      theinversecenterderivative = theinversevertexderivative << 1, // bit  2

      thevertex                  = theinversecenterderivative << 1, // bit  3

      thecenter                  = thevertex                  << 1, // bit  4

      thecorner                  = thecenter                  << 1, // bit  5

      thevertexderivative        = thecorner                  << 1, // bit  6

      thecenterderivative        = thevertexderivative        << 1, // bit  7

      thevertexjacobian          = thecenterderivative        << 1, // bit  8

      thecenterjacobian          = thevertexjacobian          << 1, // bit  9

      thecellvolume              = thecenterjacobian          << 1, // bit 10

      thecenternormal            = thecellvolume              << 1, // bit 11

      thecenterarea              = thecenternormal            << 1, // bit 12

      thefacenormal              = thecenterarea              << 1, // bit 13

      thefacearea                = thefacenormal              << 1, // bit 14

      thevertexboundarynormal    = thefacearea                << 1, // bit 15

      thecenterboundarynormal    = thevertexboundarynormal    << 1, // bit 16

      thecenterboundarytangent   = thecenterboundarynormal    << 1, // bit 17

      theminmaxedgelength        = thecenterboundarytangent   << 1, // bit 18

      theboundingbox             = theminmaxedgelength        << 1, // bit 19

      endthemappedgriddata       = theboundingbox             << 1, // bit 20

      theusualsuspects           = genericgriddata::theusualsuspects

                                 | themask

                                 | thevertex

                                 | thecenter

                                 | thevertexderivative,

      everything                 = genericgriddata::everything

                                 | themask

                                 | theinversevertexderivative

                                 | theinversecenterderivative

                                 | thevertex

                                 | thecenter

                                 | thecorner

                                 | thevertexderivative

                                 | thecenterderivative

                                 | thevertexjacobian

                                 | thecenterjacobian

                                 | thecellvolume

                                 | thecenternormal

                                 | thecenterarea

                                 | thefacenormal

                                 | thefacearea

                                 | thevertexboundarynormal

                                 | thecenterboundarynormal

                                 | thecenterboundarytangent


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