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building_symbolizer - update to mapnik-geometry

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This commit is contained in:
artemp 2015-03-17 15:47:51 +01:00
parent beb705acb3
commit e516583d6c
1 changed files with 89 additions and 74 deletions
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163
include/mapnik/renderer_common/process_building_symbolizer.hpp
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@ -25,6 +25,8 @@
#include <mapnik/segment.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/geometry_impl.hpp>
#include <mapnik/geometry_type.hpp>
#include <mapnik/geometry.hpp>
#include <algorithm>
@ -32,88 +34,101 @@
namespace mapnik {
namespace detail {
template <typename F1, typename F2, typename F3>
void render_building_symbolizer(mapnik::feature_impl &feature,
void make_building(new_geometry::polygon const& poly, double height, F1 const& face_func, F2 const& frame_func, F3 const& roof_func)
{
const std::unique_ptr<geometry_type> frame(new geometry_type(geometry_type::types::LineString));
const std::unique_ptr<geometry_type> roof(new geometry_type(geometry_type::types::Polygon));
std::deque<segment_t> face_segments;
double x0 = 0;
double y0 = 0;
double x,y;
new_geometry::polygon_vertex_adapter va(poly);
va.rewind(0);
for (unsigned cm = va.vertex(&x, &y); cm != SEG_END;
cm = va.vertex(&x, &y))
{
if (cm == SEG_MOVETO)
{
frame->move_to(x,y);
}
else if (cm == SEG_LINETO)
{
frame->line_to(x,y);
face_segments.push_back(segment_t(x0,y0,x,y));
}
else if (cm == SEG_CLOSE)
{
frame->close_path();
}
x0 = x;
y0 = y;
}
std::sort(face_segments.begin(),face_segments.end(), y_order);
for (auto const& seg : face_segments)
{
const std::unique_ptr<geometry_type> faces(new geometry_type(geometry_type::types::Polygon));
faces->move_to(std::get<0>(seg),std::get<1>(seg));
faces->line_to(std::get<2>(seg),std::get<3>(seg));
faces->line_to(std::get<2>(seg),std::get<3>(seg) + height);
faces->line_to(std::get<0>(seg),std::get<1>(seg) + height);
face_func(*faces);
//
frame->move_to(std::get<0>(seg),std::get<1>(seg));
frame->line_to(std::get<0>(seg),std::get<1>(seg)+height);
}
va.rewind(0);
for (unsigned cm = va.vertex(&x, &y); cm != SEG_END;
cm = va.vertex(&x, &y))
{
if (cm == SEG_MOVETO)
{
frame->move_to(x,y+height);
roof->move_to(x,y+height);
}
else if (cm == SEG_LINETO)
{
frame->line_to(x,y+height);
roof->line_to(x,y+height);
}
else if (cm == SEG_CLOSE)
{
frame->close_path();
roof->close_path();
}
}
frame_func(*frame);
roof_func(*roof);
}
} // ns detail
template <typename F1, typename F2, typename F3>
void render_building_symbolizer(mapnik::feature_impl const& feature,
double height,
F1 face_func, F2 frame_func, F3 roof_func)
{
// FIXME
/*
for (auto const& geom : feature.paths())
auto const& geom = feature.get_geometry();
if (geom.is<new_geometry::polygon>())
{
if (geom.size() > 2)
auto const& poly = geom.get<new_geometry::polygon>();
detail::make_building(poly, height, face_func, frame_func, roof_func);
}
else if (geom.is<new_geometry::multi_polygon>())
{
auto const& multi_poly = geom.get<new_geometry::multi_polygon>();
for (auto const& poly : multi_poly)
{
const std::unique_ptr<geometry_type> frame(new geometry_type(geometry_type::types::LineString));
const std::unique_ptr<geometry_type> roof(new geometry_type(geometry_type::types::Polygon));
std::deque<segment_t> face_segments;
double x0 = 0;
double y0 = 0;
double x,y;
vertex_adapter va(geom);
va.rewind(0);
for (unsigned cm = va.vertex(&x, &y); cm != SEG_END;
cm = va.vertex(&x, &y))
{
if (cm == SEG_MOVETO)
{
frame->move_to(x,y);
}
else if (cm == SEG_LINETO)
{
frame->line_to(x,y);
face_segments.push_back(segment_t(x0,y0,x,y));
}
else if (cm == SEG_CLOSE)
{
frame->close_path();
}
x0 = x;
y0 = y;
}
std::sort(face_segments.begin(),face_segments.end(), y_order);
for (auto const& seg : face_segments)
{
const std::unique_ptr<geometry_type> faces(new geometry_type(geometry_type::types::Polygon));
faces->move_to(std::get<0>(seg),std::get<1>(seg));
faces->line_to(std::get<2>(seg),std::get<3>(seg));
faces->line_to(std::get<2>(seg),std::get<3>(seg) + height);
faces->line_to(std::get<0>(seg),std::get<1>(seg) + height);
face_func(*faces);
//
frame->move_to(std::get<0>(seg),std::get<1>(seg));
frame->line_to(std::get<0>(seg),std::get<1>(seg)+height);
}
va.rewind(0);
for (unsigned cm = va.vertex(&x, &y); cm != SEG_END;
cm = va.vertex(&x, &y))
{
if (cm == SEG_MOVETO)
{
frame->move_to(x,y+height);
roof->move_to(x,y+height);
}
else if (cm == SEG_LINETO)
{
frame->line_to(x,y+height);
roof->line_to(x,y+height);
}
else if (cm == SEG_CLOSE)
{
frame->close_path();
roof->close_path();
}
}
frame_func(*frame);
roof_func(*roof);
detail::make_building(poly, height, face_func, frame_func, roof_func);
}
}
*/
}
} // namespace mapnik