28 lines
1.4 KiB
C
28 lines
1.4 KiB
C
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// This source code is property of the Computer Graphics and Visualization
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// chair of the TU Dresden. Do not distribute!
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// Copyright (C) CGV TU Dresden - All Rights Reserved
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#pragma once
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#include <util/OpenMeshUtils.h>
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//returns true if mesh is a topological disk
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bool IsTopologicalDisk(const HEMesh& m, OpenMesh::HalfedgeHandle& outBoundary);
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//different possible weights
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enum WeightType { CONSTANT_WEIGHT, EDGE_LENGTH_WEIGHT, INV_EDGE_LENGTH_WEIGHT, COTAN_WEIGHT};
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//compute weight w_ij for a given halfedge, where vertex i is the origin and vertex j is the target of halfedge h
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template <WeightType wtype>
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float Weight(HEMesh& m, OpenMesh::HalfedgeHandle h);
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template<> float Weight<CONSTANT_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h);
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template<> float Weight<EDGE_LENGTH_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h);
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template<> float Weight<INV_EDGE_LENGTH_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h);
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template<> float Weight<COTAN_WEIGHT>(HEMesh& m, OpenMesh::HalfedgeHandle h);
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//computes a parametrization (textcoords for each vertex)
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//texcoords of boundary vertices are placed on a circle with center (0.5,0.5) and radius 1 intexture space
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//texcoords of inner vertices are placed in the weighted mean of its one ring neighbors texcoords
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//these constraints can be stacked into a sparse linear equation system which can be solved in a least squares sense
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template <WeightType wtype>
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bool ComputeParametrizationOfTopologicalDisk(HEMesh& mesh);
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