void grid_renderer<T>::process(text_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
text_symbolizer_helper<face_manager<freetype_engine>,
label_collision_detector4> helper(
sym, feature, prj_trans,
width_, height_,
scale_factor_ * (1.0/pixmap_.get_resolution()),
t_, font_manager_, *detector_,
query_extent_);
bool placement_found = false;
text_renderer<T> ren(pixmap_,
font_manager_,
sym.get_halo_rasterizer(),
sym.comp_op(),
scale_factor_);
while (helper.next()) {
placement_found = true;
placements_type const& placements = helper.placements();
for (unsigned int ii = 0; ii < placements.size(); ++ii)
{
ren.prepare_glyphs(placements[ii]);
ren.render_id(feature.id(), placements[ii].center);
}
}
if (placement_found) pixmap_.add_feature(feature);
}
void agg_renderer<T>::process(text_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
box2d<double> clip_box = clipping_extent();
text_symbolizer_helper helper(
sym, feature, prj_trans,
width_, height_,
scale_factor_,
t_, font_manager_, *detector_,
clip_box);
agg_text_renderer<T> ren(*current_buffer_, sym.get_halo_rasterizer(), sym.comp_op(), scale_factor_, font_manager_.get_stroker());
placements_list const& placements = helper.get();
for (glyph_positions_ptr glyphs : placements)
{
ren.render(*glyphs);
}
}