mirror of
https://github.com/mapnik/mapnik.git
synced 2025-12-08 20:13:09 +00:00
4a93209423
- make projection and view transforms first - removed dependency on segment_t - no need for sorting faces
109 lines
3.6 KiB
C++
109 lines
3.6 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2017 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/make_unique.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/expression_evaluator.hpp>
|
|
#include <mapnik/expression.hpp>
|
|
#include <mapnik/symbolizer.hpp>
|
|
#include <mapnik/renderer_common/process_building_symbolizer.hpp>
|
|
|
|
// stl
|
|
#include <deque>
|
|
#include <memory>
|
|
|
|
#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"
|
|
#include "agg_conv_stroke.h"
|
|
#pragma GCC diagnostic pop
|
|
|
|
namespace mapnik
|
|
{
|
|
|
|
template <typename T>
|
|
void grid_renderer<T>::process(building_symbolizer const& sym,
|
|
mapnik::feature_impl & feature,
|
|
proj_transform const& prj_trans)
|
|
{
|
|
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>;
|
|
agg::scanline_bin sl;
|
|
|
|
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);
|
|
|
|
ras_ptr->reset();
|
|
|
|
double height = get<value_double>(sym, keys::height, feature, common_.vars_, 0.0);
|
|
|
|
render_building_symbolizer::apply(
|
|
feature, prj_trans, common_.t_, height,
|
|
[&](path_type const& faces)
|
|
{
|
|
vertex_adapter va(faces);
|
|
ras_ptr->add_path(va);
|
|
ren.color(color_type(feature.id()));
|
|
agg::render_scanlines(*ras_ptr, sl, ren);
|
|
ras_ptr->reset();
|
|
},
|
|
[&](path_type const& frame)
|
|
{
|
|
vertex_adapter va(frame);
|
|
agg::conv_stroke<vertex_adapter> stroke(va);
|
|
stroke.miter_limit(common_.scale_factor_ / 2.0);
|
|
ras_ptr->add_path(stroke);
|
|
ren.color(color_type(feature.id()));
|
|
agg::render_scanlines(*ras_ptr, sl, ren);
|
|
ras_ptr->reset();
|
|
},
|
|
[&](render_building_symbolizer::roof_type & roof)
|
|
{
|
|
ras_ptr->add_path(roof);
|
|
ren.color(color_type(feature.id()));
|
|
agg::render_scanlines(*ras_ptr, sl, ren);
|
|
});
|
|
|
|
pixmap_.add_feature(feature);
|
|
}
|
|
|
|
template void grid_renderer<grid>::process(building_symbolizer const&,
|
|
mapnik::feature_impl &,
|
|
proj_transform const&);
|
|
|
|
}
|
|
|
|
#endif
|