mirror of
https://github.com/mapnik/mapnik.git
synced 2026-01-18 16:27:36 +00:00
93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2011 Artem Pavlenko
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*****************************************************************************/
|
|
|
|
// mapnik
|
|
#include <mapnik/feature.hpp>
|
|
#include <mapnik/grid/grid_rasterizer.hpp>
|
|
#include <mapnik/grid/grid_renderer.hpp>
|
|
#include <mapnik/grid/grid_renderer_base.hpp>
|
|
#include <mapnik/grid/grid.hpp>
|
|
#include <mapnik/line_pattern_symbolizer.hpp>
|
|
|
|
// agg
|
|
#include "agg_rasterizer_scanline_aa.h"
|
|
#include "agg_renderer_scanline.h"
|
|
#include "agg_scanline_bin.h"
|
|
#include "agg_conv_stroke.h"
|
|
#include "agg_conv_dash.h"
|
|
|
|
// stl
|
|
#include <string>
|
|
|
|
namespace mapnik {
|
|
|
|
template <typename T>
|
|
void grid_renderer<T>::process(line_pattern_symbolizer const& sym,
|
|
mapnik::feature_impl & feature,
|
|
proj_transform const& prj_trans)
|
|
{
|
|
typedef coord_transform<CoordTransform,geometry_type> path_type;
|
|
typedef typename grid_renderer_base_type::pixfmt_type pixfmt_type;
|
|
typedef typename grid_renderer_base_type::pixfmt_type::color_type color_type;
|
|
typedef agg::renderer_scanline_bin_solid<grid_renderer_base_type> renderer_type;
|
|
agg::scanline_bin sl;
|
|
|
|
grid_rendering_buffer buf(pixmap_.raw_data(), width_, height_, width_);
|
|
pixfmt_type pixf(buf);
|
|
|
|
grid_renderer_base_type renb(pixf);
|
|
renderer_type ren(renb);
|
|
|
|
ras_ptr->reset();
|
|
|
|
// TODO - actually handle image dimensions
|
|
int stroke_width = 2;
|
|
|
|
for (unsigned i=0;i<feature.num_geometries();++i)
|
|
{
|
|
geometry_type & geom = feature.get_geometry(i);
|
|
if (geom.size() > 1)
|
|
{
|
|
path_type path(t_,geom,prj_trans);
|
|
agg::conv_stroke<path_type> stroke(path);
|
|
stroke.generator().miter_limit(4.0);
|
|
stroke.generator().width(stroke_width * scale_factor_);
|
|
ras_ptr->add_path(stroke);
|
|
}
|
|
}
|
|
|
|
// render id
|
|
ren.color(color_type(feature.id()));
|
|
agg::render_scanlines(*ras_ptr, sl, ren);
|
|
|
|
// add feature properties to grid cache
|
|
pixmap_.add_feature(feature);
|
|
|
|
}
|
|
|
|
|
|
template void grid_renderer<grid>::process(line_pattern_symbolizer const&,
|
|
mapnik::feature_impl &,
|
|
proj_transform const&);
|
|
|
|
}
|