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>;
using transform_path_type = transform_path_adapter<view_transform, vertex_adapter>;
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(
feature, height,
[&](path_type const& faces)
{
vertex_adapter va(faces);
transform_path_type faces_path (common_.t_,va,prj_trans);
ras_ptr->add_path(faces_path);
ren.color(color_type(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
},
[&](path_type const& frame)
{
vertex_adapter va(frame);
transform_path_type path(common_.t_,va,prj_trans);
agg::conv_stroke<transform_path_type> stroke(path);
ras_ptr->add_path(stroke);
ren.color(color_type(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
},
[&](path_type const& roof)
{
vertex_adapter va(roof);
transform_path_type roof_path (common_.t_,va,prj_trans);
ras_ptr->add_path(roof_path);
ren.color(color_type(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
});
pixmap_.add_feature(feature);
}
void cairo_renderer<T>::process(building_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
using transform_path_type = transform_path_adapter<view_transform,vertex_adapter>;
cairo_save_restore guard(context_);
composite_mode_e comp_op = get<composite_mode_e, keys::comp_op>(sym, feature, common_.vars_);
mapnik::color fill = get<color, keys::fill>(sym, feature, common_.vars_);
value_double opacity = get<value_double, keys::fill_opacity>(sym, feature, common_.vars_);
value_double height = get<value_double, keys::height>(sym, feature, common_.vars_);
context_.set_operator(comp_op);
render_building_symbolizer(
feature, height,
[&](path_type const& faces)
{
vertex_adapter va(faces);
transform_path_type faces_path(common_.t_, va, prj_trans);
context_.set_color(fill.red() * 0.8 / 255.0, fill.green() * 0.8 / 255.0,
fill.blue() * 0.8 / 255.0, fill.alpha() * opacity / 255.0);
context_.add_path(faces_path);
context_.fill();
},
[&](path_type const& frame)
{
vertex_adapter va(frame);
transform_path_type path(common_.t_, va, prj_trans);
context_.set_color(fill.red() * 0.8 / 255.0, fill.green() * 0.8/255.0,
fill.blue() * 0.8 / 255.0, fill.alpha() * opacity / 255.0);
context_.set_line_width(common_.scale_factor_);
context_.add_path(path);
context_.stroke();
},
[&](path_type const& roof)
{
vertex_adapter va(roof);
transform_path_type roof_path(common_.t_, va, prj_trans);
context_.set_color(fill, opacity);
context_.add_path(roof_path);
context_.fill();
});
}
void cairo_renderer<T>::process(building_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
using path_type = transform_path_adapter<view_transform,geometry_type>;
cairo_save_restore guard(context_);
composite_mode_e comp_op = get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over);
mapnik::color fill = get<mapnik::color>(sym, keys::fill, feature, common_.vars_, mapnik::color(128,128,128));
double opacity = get<double>(sym, keys::fill_opacity, feature, common_.vars_, 1.0);
double height = get<double>(sym, keys::height, feature, common_.vars_, 0.0);
context_.set_operator(comp_op);
render_building_symbolizer(
feature, height,
[&](geometry_type &faces) {
path_type faces_path(common_.t_, faces, prj_trans);
context_.set_color(fill.red() * 0.8 / 255.0, fill.green() * 0.8 / 255.0,
fill.blue() * 0.8 / 255.0, fill.alpha() * opacity / 255.0);
context_.add_path(faces_path);
context_.fill();
},
[&](geometry_type &frame) {
path_type path(common_.t_, frame, prj_trans);
context_.set_color(fill.red() * 0.8 / 255.0, fill.green() * 0.8/255.0,
fill.blue() * 0.8 / 255.0, fill.alpha() * opacity / 255.0);
context_.set_line_width(common_.scale_factor_);
context_.add_path(path);
context_.stroke();
},
[&](geometry_type &roof) {
path_type roof_path(common_.t_, roof, prj_trans);
context_.set_color(fill, opacity);
context_.add_path(roof_path);
context_.fill();
});
}
void agg_renderer<T>::process(building_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
typedef coord_transform<CoordTransform,geometry_type> path_type;
typedef agg::renderer_base<agg::pixfmt_rgba32> ren_base;
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
agg::rendering_buffer buf(current_buffer_->raw_data(),width_,height_, width_ * 4);
agg::pixfmt_rgba32 pixf(buf);
ren_base renb(pixf);
color const& fill_ = sym.get_fill();
unsigned r=fill_.red();
unsigned g=fill_.green();
unsigned b=fill_.blue();
unsigned a=fill_.alpha();
renderer ren(renb);
agg::scanline_u8 sl;
ras_ptr->reset();
ras_ptr->gamma(agg::gamma_power());
double height = 0.0;
expression_ptr height_expr = sym.height();
if (height_expr)
{
value_type result = boost::apply_visitor(evaluate<Feature,value_type>(feature), *height_expr);
height = result.to_double() * scale_factor_;
}
for (unsigned i=0;i<feature.num_geometries();++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.size() > 2)
{
boost::scoped_ptr<geometry_type> frame(new geometry_type(LineString));
boost::scoped_ptr<geometry_type> roof(new geometry_type(Polygon));
std::deque<segment_t> face_segments;
double x0 = 0;
double y0 = 0;
double x,y;
geom.rewind(0);
for (unsigned cm = geom.vertex(&x, &y); cm != SEG_END;
cm = geom.vertex(&x, &y))
{
if (cm == SEG_MOVETO)
{
frame->move_to(x,y);
}
else if (cm == SEG_LINETO || cm == SEG_CLOSE)
{
frame->line_to(x,y);
face_segments.push_back(segment_t(x0,y0,x,y));
}
x0 = x;
y0 = y;
}
std::sort(face_segments.begin(),face_segments.end(), y_order);
std::deque<segment_t>::const_iterator itr=face_segments.begin();
std::deque<segment_t>::const_iterator end=face_segments.end();
for (; itr!=end; ++itr)
{
boost::scoped_ptr<geometry_type> faces(new geometry_type(Polygon));
faces->move_to(itr->get<0>(),itr->get<1>());
faces->line_to(itr->get<2>(),itr->get<3>());
faces->line_to(itr->get<2>(),itr->get<3>() + height);
faces->line_to(itr->get<0>(),itr->get<1>() + height);
path_type faces_path (t_,*faces,prj_trans);
ras_ptr->add_path(faces_path);
ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(a * sym.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
//
frame->move_to(itr->get<0>(),itr->get<1>());
frame->line_to(itr->get<0>(),itr->get<1>()+height);
}
geom.rewind(0);
for (unsigned cm = geom.vertex(&x, &y); cm != SEG_END;
cm = geom.vertex(&x, &y))
{
if (cm == SEG_MOVETO)
{
frame->move_to(x,y+height);
roof->move_to(x,y+height);
}
else if (cm == SEG_LINETO || cm == SEG_CLOSE)
{
frame->line_to(x,y+height);
roof->line_to(x,y+height);
}
}
path_type path(t_,*frame,prj_trans);
agg::conv_stroke<path_type> stroke(path);
stroke.width(scale_factor_);
ras_ptr->add_path(stroke);
ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(a * sym.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
path_type roof_path (t_,*roof,prj_trans);
ras_ptr->add_path(roof_path);
ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
}
void agg_renderer<T0,T1>::process(building_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
using transform_path_type = transform_path_adapter<view_transform, vertex_adapter>;
using ren_base = agg::renderer_base<agg::pixfmt_rgba32_pre>;
using renderer = agg::renderer_scanline_aa_solid<ren_base>;
agg::rendering_buffer buf(current_buffer_->getBytes(),current_buffer_->width(),current_buffer_->height(), current_buffer_->getRowSize());
agg::pixfmt_rgba32_pre pixf(buf);
ren_base renb(pixf);
value_double opacity = get<value_double,keys::fill_opacity>(sym,feature, common_.vars_);
color const& fill = get<color, keys::fill>(sym, feature, common_.vars_);
unsigned r=fill.red();
unsigned g=fill.green();
unsigned b=fill.blue();
unsigned a=fill.alpha();
renderer ren(renb);
agg::scanline_u8 sl;
ras_ptr->reset();
double gamma = get<value_double, keys::gamma>(sym, feature, common_.vars_);
gamma_method_enum gamma_method = get<gamma_method_enum, keys::gamma_method>(sym, feature, common_.vars_);
if (gamma != gamma_ || gamma_method != gamma_method_)
{
set_gamma_method(ras_ptr, gamma, gamma_method);
gamma_method_ = gamma_method;
gamma_ = gamma;
}
double height = get<double, keys::height>(sym, feature, common_.vars_) * common_.scale_factor_;
render_building_symbolizer(
feature, height,
[&,r,g,b,a,opacity](path_type const& faces)
{
vertex_adapter va(faces);
transform_path_type faces_path (this->common_.t_,va,prj_trans);
ras_ptr->add_path(faces_path);
ren.color(agg::rgba8_pre(int(r*0.8), int(g*0.8), int(b*0.8), int(a * opacity)));
agg::render_scanlines(*ras_ptr, sl, ren);
this->ras_ptr->reset();
},
[&,r,g,b,a,opacity](path_type const& frame)
{
vertex_adapter va(frame);
transform_path_type path(common_.t_,va, prj_trans);
agg::conv_stroke<transform_path_type> stroke(path);
stroke.width(common_.scale_factor_);
ras_ptr->add_path(stroke);
ren.color(agg::rgba8_pre(int(r*0.8), int(g*0.8), int(b*0.8), int(a * opacity)));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
},
[&,r,g,b,a,opacity](path_type const& roof)
{
vertex_adapter va(roof);
transform_path_type roof_path (common_.t_,va,prj_trans);
ras_ptr->add_path(roof_path);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
agg::render_scanlines(*ras_ptr, sl, ren);
});
}
void agg_renderer<T>::process(building_symbolizer const& sym,
Feature const& feature,
proj_transform const& prj_trans)
{
typedef coord_transform2<CoordTransform,geometry_type> path_type;
typedef coord_transform3<CoordTransform,geometry_type> path_type_roof;
typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base;
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
agg::pixfmt_rgba32_plain pixf(buf);
ren_base renb(pixf);
color const& fill_ = sym.get_fill();
unsigned r=fill_.red();
unsigned g=fill_.green();
unsigned b=fill_.blue();
unsigned a=fill_.alpha();
renderer ren(renb);
agg::scanline_u8 sl;
ras_ptr->reset();
ras_ptr->gamma(agg::gamma_linear());
double height = sym.height() * scale_factor_;
for (unsigned i=0;i<feature.num_geometries();++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 2)
{
boost::scoped_ptr<geometry_type> frame(new geometry_type(LineString));
boost::scoped_ptr<geometry_type> roof(new geometry_type(Polygon));
std::deque<segment_t> face_segments;
double x0(0);
double y0(0);
unsigned cm = geom.vertex(&x0,&y0);
for (unsigned j=1;j<geom.num_points();++j)
{
double x(0);
double y(0);
cm = geom.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));
}
x0 = x;
y0 = y;
}
std::sort(face_segments.begin(),face_segments.end(), y_order);
std::deque<segment_t>::const_iterator itr=face_segments.begin();
for (;itr!=face_segments.end();++itr)
{
boost::scoped_ptr<geometry_type> faces(new geometry_type(Polygon));
faces->move_to(itr->get<0>(),itr->get<1>());
faces->line_to(itr->get<2>(),itr->get<3>());
faces->line_to(itr->get<2>(),itr->get<3>() + height);
faces->line_to(itr->get<0>(),itr->get<1>() + height);
path_type faces_path (t_,*faces,prj_trans);
ras_ptr->add_path(faces_path);
ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(a * sym.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
frame->move_to(itr->get<0>(),itr->get<1>());
frame->line_to(itr->get<0>(),itr->get<1>()+height);
}
geom.rewind(0);
for (unsigned j=0;j<geom.num_points();++j)
{
double x,y;
unsigned cm = geom.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);
}
}
path_type path(t_,*frame,prj_trans);
agg::conv_stroke<path_type> stroke(path);
ras_ptr->add_path(stroke);
ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(255 * sym.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
path_type roof_path (t_,*roof,prj_trans);
ras_ptr->add_path(roof_path);
ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
}