boolops-performance-test.cpp

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/*
 * Authors:
 *   Krzysztof Kosiński <tweenk.pl@gmail.com>
 * 
 * Copyright 2015 Authors
 *
 * This library is free software; you can redistribute it and/or
 * modify it either under the terms of the GNU Lesser General Public
 * License version 2.1 as published by the Free Software Foundation
 * (the "LGPL") or, at your option, under the terms of the Mozilla
 * Public License Version 1.1 (the "MPL"). If you do not alter this
 * notice, a recipient may use your version of this file under either
 * the MPL or the LGPL.
 *
 * You should have received a copy of the LGPL along with this library
 * in the file COPYING-LGPL-2.1; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 * You should have received a copy of the MPL along with this library
 * in the file COPYING-MPL-1.1
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
 * the specific language governing rights and limitations.
 */
 
#include <2geom/intersection-graph.h>
#include <2geom/svg-path-parser.h>
#include <iostream>
#include <glib.h>
 
using namespace Geom;
 
int main(int argc, char **argv)
{
    if (argc != 4) {
        std::cout << "boolops: wrong number of arguments; no tests run!" << std::endl;
        exit(0); // TODO: add suitable arguments in CMake target / actually do some tests here
    }
 
    PathVector a = read_svgd(argv[2]);
    PathVector b = read_svgd(argv[3]);
    unsigned const ops = atoi(argv[1]);
 
    OptRect abox = a.boundsExact();
    OptRect bbox = a.boundsExact();
    if (!abox) {
        std::cout << argv[1] << " contains an empty path" << std::endl;
        std::exit(1);
    }
    if (!bbox) {
        std::cout << argv[2] << " contains an empty path" << std::endl;
        std::exit(1);
    }
 
    a *= Translate(-abox->corner(0));
    b *= Translate(-bbox->corner(0));
 
    long num_intersections = 0;
    long num_outcv = 0;
 
    // for reproducibility.
    g_random_set_seed(1234);
 
    for (unsigned i = 0; i < ops; ++i) {
        Point delta;
        delta[X] = g_random_double_range(-bbox->width(), abox->width());
        delta[Y] = g_random_double_range(-bbox->height(), abox->height());
 
        PathVector bt = b * Translate(delta);
 
        PathIntersectionGraph pig(a, bt);
        PathVector x = pig.getIntersection();
        num_intersections += pig.intersectionPoints().size();
        num_outcv += x.curveCount();
    }
 
    std::cout << "Completed " << ops << " operations.\n"
              << "Total intersections: " << num_intersections << "\n"
              << "Total output curves: " << num_outcv << std::endl;
 
    return 0;
}
 
/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
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