95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
#include "tin_backup.h"
|
|
#include "iostream"
|
|
#include "fstream"
|
|
#include "iomanip"
|
|
|
|
int main(int argc, char const *argv[])
|
|
{
|
|
// read dem grid
|
|
std::vector<double> topo(10201);
|
|
|
|
std::ifstream infile("topo.txt");
|
|
for (int i = 0; i < 10201; ++i)
|
|
{
|
|
infile >> topo[i];
|
|
}
|
|
infile.close();
|
|
|
|
std::vector<double> err_records;
|
|
std::vector<vertex2dc*> tin_vert;
|
|
std::vector<triangle*> tin_ele;
|
|
dem2tin(topo, 0, 1000, 0, 1000, 10, 10, tin_vert, tin_ele, 1.0, &err_records);
|
|
|
|
// Write a log file
|
|
std::ofstream logfile("topo_TIN.log");
|
|
logfile << "# Insertion Maxi-Error\n";
|
|
for (int i = 0; i < err_records.size(); ++i)
|
|
{
|
|
logfile << i+1 << " " << err_records[i] << std::endl;
|
|
}
|
|
logfile.close();
|
|
|
|
// Write a Gmsh's .msh file
|
|
std::ofstream outfile("topo_TIN.msh");
|
|
outfile << "$MeshFormat" << std::endl << "2.2 0 8" << std::endl << "$EndMeshFormat "<<std::endl;
|
|
outfile << "$Nodes" << std::endl << tin_vert.size() << std::endl;
|
|
for (int i = 0; i < tin_vert.size(); i++)
|
|
{
|
|
outfile << tin_vert[i]->id + 1 << " " << std::setprecision(16)
|
|
<< tin_vert[i]->x << " " << tin_vert[i]->y << " " << tin_vert[i]->elev << std::endl;
|
|
}
|
|
outfile<<"$EndNodes"<<std::endl;
|
|
outfile << "$Elements" << std::endl << tin_ele.size() <<std::endl;
|
|
for (int i = 0; i < tin_ele.size(); i++)
|
|
{
|
|
outfile << i + 1 << " 2 0";
|
|
for (int j = 0; j < 3; j++)
|
|
{
|
|
outfile << " " << tin_ele[i]->vert[j]->id + 1;
|
|
}
|
|
outfile << std::endl;
|
|
}
|
|
outfile << "$EndElements"<< std::endl;
|
|
outfile<<"$NodeData"<<std::endl;
|
|
outfile<<1<<std::endl
|
|
<<"\"Topography (m)\"" <<std::endl
|
|
<< 1 <<std::endl<< 0.0 <<std::endl
|
|
<< 3 <<std::endl<< 0<<std::endl
|
|
<< 1 <<std::endl<< tin_vert.size() <<std::endl;
|
|
for (int i = 0; i < tin_vert.size(); i++)
|
|
{
|
|
outfile << tin_vert[i]->id + 1 << " " << std::setprecision(16) << tin_vert[i]->elev << std::endl;
|
|
}
|
|
outfile << "$EndNodeData" << std::endl;
|
|
outfile.close();
|
|
|
|
// write a neighbor file
|
|
outfile.open("topo_TIN.neigh");
|
|
outfile << tin_ele.size() << std::endl;
|
|
for (int i = 0; i < tin_ele.size(); i++)
|
|
{
|
|
outfile << i + 1;
|
|
for (int j = 0; j < 3; j++)
|
|
{
|
|
if (tin_ele[i]->neigh[j] != nullptr)
|
|
{
|
|
outfile << " " << tin_ele[i]->neigh[j]->id + 1;
|
|
}
|
|
else outfile << " -1";
|
|
}
|
|
outfile << std::endl;
|
|
}
|
|
outfile.close();
|
|
|
|
// Destroy memories allocated by the dem2tin function
|
|
for (int i = 0; i < tin_vert.size(); ++i)
|
|
{
|
|
delete tin_vert[i];
|
|
}
|
|
|
|
for (int i = 0; i < tin_ele.size(); ++i)
|
|
{
|
|
delete tin_ele[i];
|
|
}
|
|
return 0;
|
|
} |