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https://github.com/FULU-Foundation/OrcaSlicer-bambulab.git
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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "covariance_scatter_matrix.h"
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#include "arap_linear_block.h"
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#include "cotmatrix.h"
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#include "diag.h"
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#include "sum.h"
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#include "edges.h"
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#include "verbose.h"
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#include "cat.h"
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#include "PI.h"
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IGL_INLINE void igl::covariance_scatter_matrix(
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const Eigen::MatrixXd & V,
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const Eigen::MatrixXi & F,
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const ARAPEnergyType energy,
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Eigen::SparseMatrix<double>& CSM)
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{
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using namespace Eigen;
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// number of mesh vertices
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int n = V.rows();
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assert(n > F.maxCoeff());
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// dimension of mesh
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int dim = V.cols();
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// Number of mesh elements
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int m = F.rows();
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// number of rotations
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int nr;
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switch(energy)
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{
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case ARAP_ENERGY_TYPE_SPOKES:
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nr = n;
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break;
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case ARAP_ENERGY_TYPE_SPOKES_AND_RIMS:
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nr = n;
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break;
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case ARAP_ENERGY_TYPE_ELEMENTS:
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nr = m;
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break;
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default:
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fprintf(
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stderr,
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"covariance_scatter_matrix.h: Error: Unsupported arap energy %d\n",
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energy);
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return;
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}
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SparseMatrix<double> KX,KY,KZ;
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arap_linear_block(V,F,0,energy,KX);
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arap_linear_block(V,F,1,energy,KY);
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SparseMatrix<double> Z(n,nr);
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if(dim == 2)
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{
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CSM = cat(1,cat(2,KX,Z),cat(2,Z,KY)).transpose();
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}else if(dim == 3)
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{
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arap_linear_block(V,F,2,energy,KZ);
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SparseMatrix<double>ZZ(n,nr*2);
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CSM =
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cat(1,cat(1,cat(2,KX,ZZ),cat(2,cat(2,Z,KY),Z)),cat(2,ZZ,KZ)).transpose();
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}else
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{
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fprintf(
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stderr,
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"covariance_scatter_matrix.h: Error: Unsupported dimension %d\n",
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dim);
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return;
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}
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}
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