66 lines
2.1 KiB
C++
66 lines
2.1 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/rescale.hpp>
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#include "mersenne_twister.h"
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int main(int argc, char **argv) {
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MTRand rand;
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double sx, sy, sz;
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double minx, maxx, miny,maxy, minz, maxz;
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sx = rand.rand(1e5) + 1;
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sy = rand.rand(1e5) + 1;
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sz = rand.rand(1e5) + 1;
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minx = rand.rand(1e10) - sx / 2; maxx = minx + sx;
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miny = rand.rand(1e10) - sy / 2; maxy = miny + sy;
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minz = rand.rand(1e10) - sz / 2; maxz = minz + sz;
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if (minx > maxx) std::swap(minx, maxx);
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if (miny > maxy) std::swap(miny, maxy);
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if (minz > maxz) std::swap(minz, maxz);
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carve::rescale::rescale r(minx, miny, minz, maxx, maxy, maxz);
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carve::rescale::fwd fwd(r);
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carve::rescale::rev rev(r);
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std::cout << "x: [" << minx << "," << maxx << "]" << std::endl;
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std::cout << "y: [" << miny << "," << maxy << "]" << std::endl;
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std::cout << "z: [" << minz << "," << maxz << "]" << std::endl;
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std::cout << std::endl;
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std::cout << "r.dx=" << r.dx << " r.dy=" << r.dy << " r.dz=" << r.dz << " r.scale=" << r.scale << std::endl;
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std::cout << std::endl;
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for (int i = 0; i < 10000; i++) {
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carve::geom3d::Vector in, temp, out;
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in.x = rand.rand(maxx-minx) + minx;
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in.y = rand.rand(maxy-miny) + miny;
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in.z = rand.rand(maxz-minz) + minz;
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temp = fwd(in);
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out = rev(temp);
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std::cout << in << " -> " << temp << " -> " << out << std::endl;
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CARVE_ASSERT(fabs(temp.x) < 1.0 && fabs(temp.y) < 1.0 && fabs(temp.z) < 1.0);
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CARVE_ASSERT(out.x == in.x && out.y == in.y && out.z == in.z);
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}
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}
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