92 lines
No EOL
2.4 KiB
C++
92 lines
No EOL
2.4 KiB
C++
// This source code is property of the Computer Graphics and Visualization
|
|
// chair of the TU Dresden. Do not distribute!
|
|
// Copyright (C) CGV TU Dresden - All Rights Reserved
|
|
|
|
#include "Parametrization.h"
|
|
#include <queue>
|
|
#include <Eigen/Sparse>
|
|
#include <Eigen/SparseLU>
|
|
#include <iostream>
|
|
|
|
bool IsTopologicalDisk(const HEMesh& m, OpenMesh::HalfedgeHandle& outBoundary)
|
|
{
|
|
std::vector<bool> vertexVisited(m.n_vertices());
|
|
std::queue<HEMesh::VertexHandle> vQueue;
|
|
vQueue.push(m.vertex_handle(0));
|
|
size_t visitedVertices = 0;
|
|
size_t visitedBoundaries = 0;
|
|
|
|
//check if we can reach all vertices from the first vertex by region growing
|
|
while (!vQueue.empty())
|
|
{
|
|
auto v = vQueue.front();
|
|
vQueue.pop();
|
|
|
|
if (vertexVisited[v.idx()])
|
|
continue;
|
|
vertexVisited[v.idx()] = true;
|
|
++visitedVertices;
|
|
|
|
//visit all the vertices along the boundary
|
|
if (m.is_boundary(v))
|
|
{
|
|
++visitedBoundaries;
|
|
auto h = m.halfedge_handle(v); //this will always be a boundary halfedge
|
|
outBoundary = h;
|
|
auto nextV = m.to_vertex_handle(h);
|
|
while (!vertexVisited[nextV.idx()])
|
|
{
|
|
vertexVisited[nextV.idx()] = true;
|
|
++visitedVertices;
|
|
vQueue.push(nextV);
|
|
h = m.next_halfedge_handle(h);
|
|
nextV = m.to_vertex_handle(h);
|
|
}
|
|
}
|
|
|
|
for (auto vn : m.vv_range(v))
|
|
vQueue.push(vn);
|
|
}
|
|
|
|
return visitedVertices == m.n_vertices() && visitedBoundaries == 1;
|
|
}
|
|
|
|
template<> float Weight<CONSTANT_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
template<> float Weight<EDGE_LENGTH_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
template<> float Weight<INV_EDGE_LENGTH_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
template<> float Weight<COTAN_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
template <WeightType wtype>
|
|
bool ComputeParametrizationOfTopologicalDisk(HEMesh& mesh)
|
|
{
|
|
OpenMesh::HalfedgeHandle boundary;
|
|
if (!IsTopologicalDisk(mesh, boundary))
|
|
{
|
|
std::cout << "This mesh is not a topological disk." << std::endl;
|
|
return false;
|
|
}
|
|
|
|
/* Task 4.2.1 */
|
|
|
|
return true;
|
|
}
|
|
|
|
template bool ComputeParametrizationOfTopologicalDisk<CONSTANT_WEIGHT>(HEMesh& mesh);
|
|
template bool ComputeParametrizationOfTopologicalDisk<EDGE_LENGTH_WEIGHT>(HEMesh& mesh);
|
|
template bool ComputeParametrizationOfTopologicalDisk<INV_EDGE_LENGTH_WEIGHT>(HEMesh& mesh);
|
|
template bool ComputeParametrizationOfTopologicalDisk<COTAN_WEIGHT>(HEMesh& mesh); |