47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
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// 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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#ifndef IGL_OPENGL2_UNPROJECT_H
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#define IGL_OPENGL2_UNPROJECT_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 opengl2
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{
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// Wrapper for gluUnproject that uses the current GL_MODELVIEW_MATRIX,
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// GL_PROJECTION_MATRIX, and GL_VIEWPORT
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// Inputs:
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// win* screen space x, y, and z coordinates respectively
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// Outputs:
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// obj* pointers to 3D objects' x, y, and z coordinates respectively
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// Returns return value of gluUnProject call
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IGL_INLINE void unproject(
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const double winX,
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const double winY,
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const double winZ,
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double* objX,
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double* objY,
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double* objZ);
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template <typename Derivedwin, typename Derivedobj>
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IGL_INLINE void unproject(
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const Eigen::PlainObjectBase<Derivedwin> & win,
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Eigen::PlainObjectBase<Derivedobj> & obj);
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template <typename Derivedwin>
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IGL_INLINE Derivedwin unproject(
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const Eigen::PlainObjectBase<Derivedwin> & win);
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "unproject.cpp"
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#endif
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#endif
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