70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
#include "gm3d.h"
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int GM3D::BuildRegularGrid(char* space_para){
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cpoint temp_cp;
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cube temp_cu;
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string temp_id_str;
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double x,xs,dx,xe,xmin,xmax;
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double y,ys,dy,ye,ymin,ymax;
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double z,zs,dz,ze,zmin,zmax;
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double sign[8][3] = {{-0.5,-0.5,-0.5},{0.5,-0.5,-0.5},{0.5,0.5,-0.5},{-0.5,0.5,-0.5},
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{-0.5,-0.5,0.5},{0.5,-0.5,0.5},{0.5,0.5,0.5},{-0.5,0.5,0.5}};
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_str2pointMap map_str_point;
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_str2pointMap::iterator imsp;
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if (9 == sscanf(space_para,"%lf/%lf/%lf/%lf/%lf/%lf/%lf/%lf/%lf",
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&xs,&dx,&xe,&ys,&dy,&ye,&zs,&dz,&ze)){
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xmin = MIN(xs,xe); xmax = MAX(xs,xe);
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ymin = MIN(ys,ye); ymax = MAX(ys,ye);
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zmin = MIN(zs,ze); zmax = MAX(zs,ze);
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temp_cu.dx = fabs(dx); temp_cu.dy = fabs(dy); temp_cu.dz = fabs(dz);
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y = ys;
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while(y >= ymin && y <= ymax){
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x = xs;
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while(x >= xmin && x <= xmax){
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z = zs;
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while(z >= zmin && z <= zmax){
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//添加denMod
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temp_cu.cen.id = model_cube_.size();
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temp_cu.cen.x = x; temp_cu.cen.y = y; temp_cu.cen.z = z;
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//添加mshVert
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for (int i = 0; i < 8; i++){
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temp_cp.id = model_vert_.size(); //添加msh的顶点索引为mshVert的大小
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temp_cp.x = temp_cu.cen.x - sign[i][0]*temp_cu.dx; //左下底角
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temp_cp.y = temp_cu.cen.y - sign[i][1]*temp_cu.dy;
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temp_cp.z = temp_cu.cen.z - sign[i][2]*temp_cu.dz;
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temp_id_str = cpoint_id(temp_cp);
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imsp = map_str_point.find(temp_id_str);
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//利用map_vert查到当前顶点是否存在,这里需要注意，如果顶点已经存在则只需要将顶点索引置为已存在顶点的索引，不增加顶点计数
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if(imsp!=map_str_point.end()){
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temp_cu.ids[i] = imsp->second.id;
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}
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//若为新的顶点则将其增加到两个映射和一个链表中
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else{
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temp_cu.ids[i] = temp_cp.id;//新的顶点索引等于顶点集的数量
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model_vert_.push_back(temp_cp);//将新产生的顶点保存到顶点链表中
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map_str_point[temp_id_str] = temp_cp;//将新产生的顶点保存到顶点位置映射中
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}
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}
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model_cube_.push_back(temp_cu);
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z += dz;
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}
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x += dx;
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}
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y += dy;
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}
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}
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if (model_cube_.empty()){
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cerr << BOLDRED << "error ==> " << RESET << "fail to initial model space with the parameter: " << space_para << endl;
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return -1;
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}
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else{
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vert_num_ = model_vert_.size();
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model_num_ = model_cube_.size();
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model_block_val_.resize(model_num_,BDL_MAX); //初始化模型块体值为BDL_MAX
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}
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return 0;
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} |