64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// mapnik
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#include <mapnik/agg_renderer.hpp>
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#include <mapnik/graphics.hpp>
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namespace mapnik {
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void draw_rect(image_32 &pixmap, box2d<double> const& box)
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{
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double x0 = box.minx();
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double x1 = box.maxx();
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double y0 = box.miny();
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double y1 = box.maxy();
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unsigned color1 = 0xff0000ff;
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for (double x=x0; x<x1; x++)
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{
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pixmap.setPixel(x, y0, color1);
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pixmap.setPixel(x, y1, color1);
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}
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for (double y=y0; y<y1; y++)
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{
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pixmap.setPixel(x0, y, color1);
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pixmap.setPixel(x1, y, color1);
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}
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}
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template <typename T>
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void agg_renderer<T>::process(debug_symbolizer const& sym,
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mapnik::feature_impl & feature,
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proj_transform const& prj_trans)
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{
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label_collision_detector4::query_iterator itr = detector_->begin(), end = detector_->end();
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for (;itr!=end; itr++)
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{
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draw_rect(pixmap_, itr->box);
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}
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}
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template void agg_renderer<image_32>::process(debug_symbolizer const&,
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mapnik::feature_impl &,
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proj_transform const&);
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}
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