https://github.com/HTDerekLiu/surface_multigrid_code
Revision 2a5ce10bcc87d1ae648b298a39eec2f368b24b24 authored by HTDerekLiu on 24 May 2021, 13:03:36 UTC, committed by HTDerekLiu on 24 May 2021, 13:03:36 UTC
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Tip revision: 2a5ce10bcc87d1ae648b298a39eec2f368b24b24 authored by HTDerekLiu on 24 May 2021, 13:03:36 UTC
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compute_barycentric.h
#ifndef COMPUTE_BARYCENTRIC_h
#define COMPUTE_BARYCENTRIC_h

#include <Eigen/Core>
#include <iostream>
#include <math.h> 

// Compute the barycentric coordinate of a 2D query point "p" with respect to all the elements in a 2D triangle mesh (UV, F). 

// Inputs:
// p   location of the query point in 2D
// UV  #V-by-2 vertices of the 2D triangle mesh
// F   #F-by-3 faces of the 2D triangle mesh

// Outputs:
// B   #F-by-3 barycentric coordinates of p wrt each face F

void compute_barycentric(
  const Eigen::VectorXd & p,
  const Eigen::MatrixXd & UV,
  const Eigen::MatrixXi & F,
  Eigen::MatrixXd & B);
#endif
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