41 lines
1.3 KiB
C++
41 lines
1.3 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 "view_axis.h"
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#include "gl.h"
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IGL_INLINE void igl::opengl2::view_axis(double * x, double * y, double * z)
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{
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double mv[16];
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glGetDoublev(GL_MODELVIEW_MATRIX, mv);
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igl::opengl2::view_axis(mv,x,y,z);
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}
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IGL_INLINE void igl::opengl2::view_axis(const double * mv, double * x, double * y, double * z)
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{
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*x = -mv[0*4+2];
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*y = -mv[1*4+2];
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*z = -mv[2*4+2];
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}
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template <typename DerivedV>
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IGL_INLINE void igl::opengl2::view_axis(Eigen::PlainObjectBase<DerivedV> & V)
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{
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double x,y,z;
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view_axis(&x,&y,&z);
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V(0) = x;
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V(1) = y;
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V(2) = z;
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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// generated by autoexplicit.sh
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template void igl::opengl2::view_axis<Eigen::Matrix<double, 3, 1, 0, 3, 1> >(Eigen::PlainObjectBase<Eigen::Matrix<double, 3, 1, 0, 3, 1> >&);
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template void igl::opengl2::view_axis<Eigen::Matrix<double, 1, 3, 1, 1, 3> >(Eigen::PlainObjectBase<Eigen::Matrix<double, 1, 3, 1, 1, 3> >&);
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#endif
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