60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
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// Begin License:
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// Copyright (C) 2006-2008 Tobias Sargeant (tobias.sargeant@gmail.com).
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// All rights reserved.
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//
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// This file is part of the Carve CSG Library (http://carve-csg.com/)
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//
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// This file may be used under the terms of the GNU General Public
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// License version 2.0 as published by the Free Software Foundation
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// and appearing in the file LICENSE.GPL2 included in the packaging of
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// this file.
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//
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// This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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// INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE.
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// End:
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#if defined(HAVE_CONFIG_H)
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# include <carve_config.h>
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#endif
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#include <carve/vector.hpp>
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#include <iostream>
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double triangularPrismVolume(const carve::geom3d::Vector &a,
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const carve::geom3d::Vector &b,
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const carve::geom3d::Vector &c,
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double z) {
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double v1 = carve::geom3d::tetrahedronVolume(carve::geom::VECTOR(a.x, a.y, z),
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carve::geom::VECTOR(c.x, c.y, z),
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carve::geom::VECTOR(b.x, b.y, z),
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a);
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double v2 = carve::geom3d::tetrahedronVolume(carve::geom::VECTOR(a.x, a.y, z),
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carve::geom::VECTOR(c.x, c.y, z),
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b,
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a);
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double v3 = carve::geom3d::tetrahedronVolume(carve::geom::VECTOR(c.x, c.y, z),
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c,
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b,
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a);
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std::cerr << "[components:" << v1 << "," << v2 << "," << v3 << "]" << std::endl;
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return v1 + v2 + v3;
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}
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int main(int argc, char **argv) {
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std::cerr << "result: "
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<< triangularPrismVolume(carve::geom::VECTOR(1,0,1),
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carve::geom::VECTOR(0,1,1),
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carve::geom::VECTOR(0,0,3),
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0)
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<< std::endl;
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std::cerr << "result: "
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<< triangularPrismVolume(carve::geom::VECTOR(11,10,1),
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carve::geom::VECTOR(10,11,1),
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carve::geom::VECTOR(10,10,3),
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0)
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<< std::endl;
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}
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