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48 lines
1.7 KiB
48 lines
1.7 KiB
#ifndef IGL_TRIANGLE_CDT_H
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#define IGL_TRIANGLE_CDT_H
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#include "../igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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namespace triangle
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{
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/// Construct the constrained delaunay triangulation of the convex hull
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/// of a given set of points and segments in 2D. This differs from a direct
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/// call to triangulate because it will preprocess the input to remove
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/// duplicates and return an adjusted segment list on the output.
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///
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/// @param[in] V #V by 2 list of texture mesh vertices
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/// @param[in] E #E by 2 list of constraint edge indices into V
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/// @param[in] flags string of triangle flags should contain "-c" unless the
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/// some subset of segments are known to enclose all other
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/// points/segments.
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/// @param[out] WV #WV by 2 list of background mesh vertices
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/// @param[out] WF #WF by 2 list of background mesh triangle indices into WV
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/// @param[out] WE #WE by 2 list of constraint edge indices into WV (might be smaller
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/// than E because degenerate constraints have been removed)
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/// @param[out] J #V list of indices into WF/WE for each vertex in V
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///
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template <
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typename DerivedV,
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typename DerivedE,
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typename DerivedWV,
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typename DerivedWF,
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typename DerivedWE,
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typename DerivedJ>
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IGL_INLINE void cdt(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedE> & E,
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const std::string & flags,
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Eigen::PlainObjectBase<DerivedWV> & WV,
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Eigen::PlainObjectBase<DerivedWF> & WF,
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Eigen::PlainObjectBase<DerivedWE> & WE,
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Eigen::PlainObjectBase<DerivedJ> & J);
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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#include "cdt.cpp"
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#endif
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#endif
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