mirror of
https://github.com/mapnik/mapnik.git
synced 2025-12-08 20:13:09 +00:00
128 lines
5.0 KiB
C++
128 lines
5.0 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2015 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
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#if defined(GRID_RENDERER)
|
|
|
|
// mapnik
|
|
#include <mapnik/debug.hpp>
|
|
#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/vertex_converters.hpp>
|
|
#include <mapnik/vertex_processor.hpp>
|
|
#include <mapnik/marker.hpp>
|
|
#include <mapnik/marker_cache.hpp>
|
|
#include <mapnik/parse_path.hpp>
|
|
#include <mapnik/renderer_common/apply_vertex_converter.hpp>
|
|
|
|
#pragma GCC diagnostic push
|
|
#include <mapnik/warning_ignore_agg.hpp>
|
|
#include "agg_rasterizer_scanline_aa.h"
|
|
#include "agg_renderer_scanline.h"
|
|
#include "agg_scanline_bin.h"
|
|
#pragma GCC diagnostic pop
|
|
|
|
// stl
|
|
#include <string>
|
|
#include <map>
|
|
|
|
namespace mapnik {
|
|
|
|
template <typename T>
|
|
void grid_renderer<T>::process(polygon_pattern_symbolizer const& sym,
|
|
mapnik::feature_impl & feature,
|
|
proj_transform const& prj_trans)
|
|
{
|
|
std::string filename = get<std::string, keys::file>(sym, feature, common_.vars_);
|
|
if (filename.empty()) return;
|
|
std::shared_ptr<mapnik::marker const> mark = marker_cache::instance().find(filename, true);
|
|
if (mark->is<mapnik::marker_null>()) return;
|
|
|
|
if (!mark->is<mapnik::marker_rgba8>())
|
|
{
|
|
MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Only images (not '" << filename << "') are supported in the line_pattern_symbolizer";
|
|
return;
|
|
}
|
|
|
|
ras_ptr->reset();
|
|
|
|
value_bool clip = get<value_bool, keys::clip>(sym, feature, common_.vars_);
|
|
value_double simplify_tolerance = get<value_double, keys::simplify_tolerance>(sym, feature, common_.vars_);
|
|
value_double smooth = get<value_double, keys::smooth>(sym, feature, common_.vars_);
|
|
|
|
agg::trans_affine tr;
|
|
auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
|
|
if (transform)
|
|
{
|
|
evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
|
|
}
|
|
|
|
using vertex_converter_type = vertex_converter<clip_poly_tag,
|
|
transform_tag,
|
|
affine_transform_tag,
|
|
simplify_tag,
|
|
smooth_tag>;
|
|
|
|
vertex_converter_type converter(common_.query_extent_,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
|
|
|
|
if (prj_trans.equal() && clip) converter.set<clip_poly_tag>();
|
|
converter.set<transform_tag>(); //always transform
|
|
converter.set<affine_transform_tag>();
|
|
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
|
|
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
|
|
|
|
using apply_vertex_converter_type = detail::apply_vertex_converter<vertex_converter_type, grid_rasterizer>;
|
|
using vertex_processor_type = geometry::vertex_processor<apply_vertex_converter_type>;
|
|
apply_vertex_converter_type apply(converter, *ras_ptr);
|
|
mapnik::util::apply_visitor(vertex_processor_type(apply),feature.get_geometry());
|
|
|
|
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
|
|
using color_type = typename grid_renderer_base_type::pixfmt_type::color_type;
|
|
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
|
|
|
|
grid_rendering_buffer buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
|
|
pixfmt_type pixf(buf);
|
|
|
|
grid_renderer_base_type renb(pixf);
|
|
renderer_type ren(renb);
|
|
|
|
// render id
|
|
ren.color(color_type(feature.id()));
|
|
agg::scanline_bin sl;
|
|
ras_ptr->filling_rule(agg::fill_even_odd);
|
|
agg::render_scanlines(*ras_ptr, sl, ren);
|
|
|
|
// add feature properties to grid cache
|
|
pixmap_.add_feature(feature);
|
|
}
|
|
|
|
|
|
template void grid_renderer<grid>::process(polygon_pattern_symbolizer const&,
|
|
mapnik::feature_impl &,
|
|
proj_transform const&);
|
|
|
|
}
|
|
|
|
#endif
|