void agg_renderer<T0,T1>::process(dot_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
double width = 0.0;
double height = 0.0;
bool has_width = has_key(sym,keys::width);
bool has_height = has_key(sym,keys::height);
if (has_width && has_height)
{
width = get<double>(sym, keys::width, feature, common_.vars_, 0.0);
height = get<double>(sym, keys::height, feature, common_.vars_, 0.0);
}
else if (has_width)
{
width = height = get<double>(sym, keys::width, feature, common_.vars_, 0.0);
}
else if (has_height)
{
width = height = get<double>(sym, keys::height, feature, common_.vars_, 0.0);
}
double rx = width/2.0;
double ry = height/2.0;
double opacity = get<double>(sym, keys::opacity, feature, common_.vars_, 1.0);
color const& fill = get<mapnik::color>(sym, keys::fill, feature, common_.vars_, mapnik::color(128,128,128));
ras_ptr->reset();
agg::rendering_buffer buf(current_buffer_->raw_data(),current_buffer_->width(),current_buffer_->height(),current_buffer_->width() * 4);
using blender_type = agg::comp_op_adaptor_rgba_pre<agg::rgba8, agg::order_rgba>;
using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_comp_type>;
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
pixfmt_comp_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over)));
renderer_base renb(pixf);
renderer_type ren(renb);
agg::scanline_u8 sl;
ren.color(agg::rgba8_pre(fill.red(), fill.green(), fill.blue(), int(fill.alpha() * opacity)));
agg::ellipse el(0,0,rx,ry);
unsigned num_steps = el.num_steps();
for (geometry_type const& geom : feature.paths()) {
double x,y,z = 0;
unsigned cmd = 1;
geom.rewind(0);
while ((cmd = geom.vertex(&x, &y)) != mapnik::SEG_END) {
if (cmd == SEG_CLOSE) continue;
prj_trans.backward(x,y,z);
common_.t_.forward(&x,&y);
el.init(x,y,rx,ry,num_steps);
ras_ptr->add_path(el);
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
}
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);
}
virtual void operator()(raster_marker_render_thunk const& thunk)
{
using buf_type = grid_rendering_buffer;
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
buf_type render_buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
ras_.reset();
pixfmt_type pixf(render_buf);
grid_renderer_base_type renb(pixf);
renderer_type ren(renb);
agg::trans_affine offset_tr = thunk.tr_;
offset_tr.translate(offset_.x, offset_.y);
render_raster_marker(ren, ras_, thunk.src_, feature_, offset_tr, thunk.opacity_);
pixmap_.add_feature(feature_);
}
void grid_renderer<T>::process(polygon_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
typedef agg::renderer_scanline_bin_solid<grid_renderer_base_type> renderer_type;
typedef typename grid_renderer_base_type::pixfmt_type pixfmt_type;
typedef typename grid_renderer_base_type::pixfmt_type::color_type color_type;
ras_ptr->reset();
agg::trans_affine tr;
evaluate_transform(tr, feature, sym.get_transform(), scale_factor_);
typedef boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,simplify_tag,smooth_tag> conv_types;
vertex_converter<box2d<double>, grid_rasterizer, polygon_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>
converter(query_extent_,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
if (prj_trans.equal() && sym.clip()) converter.set<clip_poly_tag>(); //optional clip (default: true)
converter.set<transform_tag>(); //always transform
converter.set<affine_transform_tag>();
if (sym.simplify_tolerance() > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (sym.smooth() > 0.0) converter.set<smooth_tag>(); // optional smooth converter
for ( geometry_type & geom : feature.paths())
{
if (geom.size() > 2)
{
converter.apply(geom);
}
}
grid_rendering_buffer buf(pixmap_.raw_data(), width_, height_, 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);
}
void agg_renderer<T0,T1>::process(polygon_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
using conv_types = boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,simplify_tag,smooth_tag>;
using vertex_converter_type = vertex_converter<box2d<double>, rasterizer, polygon_symbolizer,
CoordTransform, proj_transform, agg::trans_affine,
conv_types, feature_impl>;
ras_ptr->reset();
double gamma = get<value_double>(sym, keys::gamma, feature, common_.vars_, 1.0);
gamma_method_enum gamma_method = get<gamma_method_enum>(sym, keys::gamma_method, feature, common_.vars_, GAMMA_POWER);
if (gamma != gamma_ || gamma_method != gamma_method_)
{
set_gamma_method(ras_ptr, gamma, gamma_method);
gamma_method_ = gamma_method;
gamma_ = gamma;
}
box2d<double> clip_box = clipping_extent();
agg::rendering_buffer buf(current_buffer_->raw_data(),current_buffer_->width(),current_buffer_->height(), current_buffer_->width() * 4);
render_polygon_symbolizer<vertex_converter_type>(
sym, feature, prj_trans, common_, clip_box, *ras_ptr,
[&](color const &fill, double opacity) {
unsigned r=fill.red();
unsigned g=fill.green();
unsigned b=fill.blue();
unsigned a=fill.alpha();
using color_type = agg::rgba8;
using order_type = agg::order_rgba;
using blender_type = agg::comp_op_adaptor_rgba_pre<color_type, order_type>; // comp blender
using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_comp_type>;
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
pixfmt_comp_type pixf(buf);
auto comp_op = get<agg::comp_op_e>(sym, keys::comp_op, feature, common_.vars_, agg::comp_op_src_over);
pixf.comp_op(comp_op);
renderer_base renb(pixf);
renderer_type ren(renb);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
agg::scanline_u8 sl;
ras_ptr->filling_rule(agg::fill_even_odd);
agg::render_scanlines(*ras_ptr, sl, ren);
});
}
virtual void operator()(raster_marker_render_thunk const& thunk)
{
using blender_type = agg::comp_op_adaptor_rgba_pre<agg::rgba8, agg::order_rgba>; // comp blender
using buf_type = agg::rendering_buffer;
using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, buf_type>;
using renderer_base = agg::renderer_base<pixfmt_comp_type>;
ras_ptr_->reset();
buf_type render_buffer(buf_->bytes(), buf_->width(), buf_->height(), buf_->row_size());
pixfmt_comp_type pixf(render_buffer);
pixf.comp_op(static_cast<agg::comp_op_e>(thunk.comp_op_));
renderer_base renb(pixf);
agg::trans_affine offset_tr = thunk.tr_;
offset_tr.translate(offset_.x, offset_.y);
render_raster_marker(renb, *ras_ptr_, thunk.src_, offset_tr, thunk.opacity_, common_.scale_factor_, thunk.snap_to_pixels_);
}
void THLine::draw(THRenderTarget* pCanvas, int iX, int iY)
{
// Strangely drawing at 0,0 would draw outside of the screen
// so we start at 1,0. This makes SDL behave like DirectX.
SDL_Rect rcDest;
rcDest.x = iX + 1;
rcDest.y = iY;
// Try to get a cached line surface
if (m_pBitmap) {
SDL_BlitSurface(m_pBitmap, NULL, pCanvas->getRawSurface(), &rcDest);
return;
}
// No cache, let's build a new one
SDL_FreeSurface(m_pBitmap);
Uint32 amask;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
amask = 0x000000ff;
#else
amask = 0xff000000;
#endif
const SDL_PixelFormat& fmt = *(pCanvas->getRawSurface()->format);
m_pBitmap = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_SRCALPHA, (int)ceil(m_fMaxX), (int)ceil(m_fMaxY), fmt.BitsPerPixel, fmt.Rmask, fmt.Gmask, fmt.Bmask, amask);
agg::rendering_buffer rbuf(reinterpret_cast<agg::int8u*>(m_pBitmap->pixels), m_pBitmap->w, m_pBitmap->h, m_pBitmap->pitch);
agg::pixfmt_rgba32 pixf(rbuf);
agg::renderer_base<agg::pixfmt_rgba32> renb(pixf);
agg::conv_stroke<agg::path_storage> stroke(*m_oPath);
stroke.width(m_fWidth);
agg::rasterizer_scanline_aa<> ras;
ras.add_path(stroke);
agg::scanline_p8 sl;
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba8(m_iB, m_iG, m_iR, m_iA));
SDL_BlitSurface(m_pBitmap, NULL, pCanvas->getRawSurface(), &rcDest);
}
void grid_renderer<T>::process(line_pattern_symbolizer const& sym,
mapnik::feature_ptr const& feature,
proj_transform const& prj_trans)
{
typedef coord_transform2<CoordTransform,geometry_type> path_type;
typedef agg::renderer_base<mapnik::pixfmt_gray16> ren_base;
typedef agg::renderer_scanline_bin_solid<ren_base> renderer;
agg::scanline_bin sl;
grid_rendering_buffer buf(pixmap_.raw_data(), width_, height_, width_);
mapnik::pixfmt_gray16 pixf(buf);
ren_base renb(pixf);
renderer ren(renb);
ras_ptr->reset();
// TODO - actually handle image dimensions
int stroke_width = 2;
for (unsigned i=0;i<feature->num_geometries();++i)
{
geometry_type const& geom = feature->get_geometry(i);
if (geom.num_points() > 1)
{
path_type path(t_,geom,prj_trans);
agg::conv_stroke<path_type> stroke(path);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_width * scale_factor_);
ras_ptr->add_path(stroke);
}
}
// render id
ren.color(mapnik::gray16(feature->id()));
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
void agg_renderer<T0,T1>::process(dot_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
double width = 0.0;
double height = 0.0;
bool has_width = has_key(sym,keys::width);
bool has_height = has_key(sym,keys::height);
if (has_width && has_height)
{
width = get<double>(sym, keys::width, feature, common_.vars_, 0.0);
height = get<double>(sym, keys::height, feature, common_.vars_, 0.0);
}
else if (has_width)
{
width = height = get<double>(sym, keys::width, feature, common_.vars_, 0.0);
}
else if (has_height)
{
width = height = get<double>(sym, keys::height, feature, common_.vars_, 0.0);
}
double rx = width/2.0;
double ry = height/2.0;
double opacity = get<double>(sym, keys::opacity, feature, common_.vars_, 1.0);
color const& fill = get<mapnik::color>(sym, keys::fill, feature, common_.vars_, mapnik::color(128,128,128));
ras_ptr->reset();
agg::rendering_buffer buf(current_buffer_->bytes(),current_buffer_->width(),current_buffer_->height(),current_buffer_->row_size());
using blender_type = agg::comp_op_adaptor_rgba_pre<agg::rgba8, agg::order_rgba>;
using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_comp_type>;
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
pixfmt_comp_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over)));
renderer_base renb(pixf);
renderer_type ren(renb);
ren.color(agg::rgba8_pre(fill.red(), fill.green(), fill.blue(), int(fill.alpha() * opacity)));
using render_dot_symbolizer_type = detail::render_dot_symbolizer<rasterizer, renderer_type, renderer_common, proj_transform>;
render_dot_symbolizer_type apply(rx, ry, *ras_ptr, ren, common_, prj_trans);
mapnik::util::apply_visitor(geometry::vertex_processor<render_dot_symbolizer_type>(apply), feature.get_geometry());
}
bool render(const Tile& tile,const std::vector<RoadSegment>& segments,agg::rendering_buffer& rbuf)
{
typedef agg::renderer_base<agg::pixfmt_rgba32> ren_base;
typedef agg::renderer_outline_aa<ren_base> renderer_oaa;
typedef agg::rasterizer_outline_aa<renderer_oaa> rasterizer_outline_aa;
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
agg::pixfmt_rgba32 pixf(rbuf);
ren_base renb(pixf);
renderer ren(renb);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
unsigned i = 0;
for (i=0; i < segments.size(); i++)
{
RoadSegment rseg = segments[i];
Segment seg = rseg.convertToSegment(tile);
ren.color(seg.getColor());
agg::path_storage path;
path.move_to(seg.getFromPoint().getX(), seg.getFromPoint().getY());
path.line_to(seg.getToPoint().getX(), seg.getToPoint().getY());
agg::conv_stroke<agg::path_storage> stroke(path);
stroke.width(seg.getStrokeWidth());
agg::line_cap_e cap = agg::round_cap;
agg::line_join_e join = agg::round_join;
stroke.line_join(join);
stroke.line_cap(cap);
ras.reset();
ras.add_path(stroke);
agg::render_scanlines(ras,sl,ren);
}
return true;
}
void render(mapnik::image_rgba8 const& image) const
{
agg::rendering_buffer buf(current_buffer_.bytes(), current_buffer_.width(),
current_buffer_.height(), current_buffer_.row_size());
ras_ptr_->reset();
value_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;
}
using vertex_converter_type = vertex_converter<clip_poly_tag,
transform_tag,
affine_transform_tag,
simplify_tag,
smooth_tag>;
using pattern_type = agg_polygon_pattern<vertex_converter_type>;
pattern_type pattern(image, common_, sym_, feature_, prj_trans_);
pattern_type::pixfmt_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e, keys::comp_op>(sym_, feature_, common_.vars_)));
pattern_type::renderer_base renb(pixf);
unsigned w = image.width();
unsigned h = image.height();
agg::rendering_buffer pattern_rbuf((agg::int8u*)image.bytes(),w,h,w*4);
agg::pixfmt_rgba32_pre pixf_pattern(pattern_rbuf);
pattern_type::img_source_type img_src(pixf_pattern);
if (prj_trans_.equal() && pattern.clip_) pattern.converter_.set<clip_poly_tag>();
ras_ptr_->filling_rule(agg::fill_even_odd);
pattern.render(renb, *ras_ptr_);
}
virtual void on_draw()
{
typedef agg::renderer_base<agg::pixfmt_bgr24> ren_base;
agg::pixfmt_bgr24 pixf(rbuf_window());
ren_base renb(pixf);
renb.clear(agg::rgba(1, 1, 1));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
agg::trans_affine mtx;
mtx *= agg::trans_affine_scaling(4.0);
mtx *= agg::trans_affine_translation(150, 100);
agg::conv_transform<agg::path_storage> trans(m_path, mtx);
agg::conv_curve<agg::conv_transform<agg::path_storage> > curve(trans);
agg::conv_contour
<agg::conv_curve
<agg::conv_transform
<agg::path_storage> > > contour(curve);
contour.width(m_width.value());
//contour.inner_join(agg::inner_bevel);
//contour.line_join(agg::miter_join);
//contour.inner_line_join(agg::miter_join);
//contour.inner_miter_limit(4.0);
contour.auto_detect_orientation(m_auto_detect.status());
compose_path();
ras.add_path(contour);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0,0,0));
agg::render_ctrl(ras, sl, renb, m_close);
agg::render_ctrl(ras, sl, renb, m_width);
agg::render_ctrl(ras, sl, renb, m_auto_detect);
}
virtual void operator()(vector_marker_render_thunk const& thunk)
{
using buf_type = grid_rendering_buffer;
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
using svg_renderer_type = svg::renderer_agg<svg_path_adapter,
svg_attribute_type,
renderer_type,
pixfmt_type>;
buf_type render_buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
ras_.reset();
pixfmt_type pixf(render_buf);
grid_renderer_base_type renb(pixf);
renderer_type ren(renb);
svg::vertex_stl_adapter<svg::svg_path_storage> stl_storage(thunk.src_->source());
svg_path_adapter svg_path(stl_storage);
svg_renderer_type svg_renderer(svg_path, thunk.attrs_);
agg::trans_affine offset_tr = thunk.tr_;
offset_tr.translate(offset_.x, offset_.y);
agg::scanline_bin sl;
svg_renderer.render_id(ras_, sl, renb, feature_.id(), offset_tr, thunk.opacity_, thunk.src_->bounding_box());
pixmap_.add_feature(feature_);
}
void grid_renderer<T>::process(polygon_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
using color_type = typename grid_renderer_base_type::pixfmt_type::color_type;
using vertex_converter_type = vertex_converter<transform2_tag,
clip_poly_tag,
transform_tag,
affine_transform_tag,
simplify_tag,
smooth_tag,
contour_tag>;
ras_ptr->reset();
grid_rendering_buffer buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
render_polygon_symbolizer<vertex_converter_type>(
sym, feature, prj_trans, common_, common_.query_extent_, *ras_ptr,
[&](color const &, double) {
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_non_zero);
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
});
}
void agg_renderer<T>::process(polygon_pattern_symbolizer const& sym,
mapnik::feature_ptr const& feature,
proj_transform const& prj_trans)
{
typedef agg::conv_clip_polygon<geometry_type> clipped_geometry_type;
typedef coord_transform2<CoordTransform,clipped_geometry_type> path_type;
typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base;
typedef agg::wrap_mode_repeat wrap_x_type;
typedef agg::wrap_mode_repeat wrap_y_type;
typedef agg::pixfmt_alpha_blend_rgba<agg::blender_rgba32_plain,
agg::row_accessor<agg::int8u>, agg::pixel32_type> rendering_buffer;
typedef agg::image_accessor_wrap<rendering_buffer,
wrap_x_type,
wrap_y_type> img_source_type;
typedef agg::span_pattern_rgba<img_source_type> span_gen_type;
typedef agg::renderer_scanline_aa<ren_base,
agg::span_allocator<agg::rgba8>,
span_gen_type> renderer_type;
agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
agg::pixfmt_rgba32_plain pixf(buf);
ren_base renb(pixf);
agg::scanline_u8 sl;
ras_ptr->reset();
set_gamma_method(sym,ras_ptr);
std::string filename = path_processor_type::evaluate( *sym.get_filename(), *feature);
boost::optional<mapnik::marker_ptr> marker;
if ( !filename.empty() )
{
marker = marker_cache::instance()->find(filename, true);
}
else
{
std::clog << "### Warning: file not found: " << filename << "\n";
}
if (!marker) return;
if (!(*marker)->is_bitmap())
{
std::clog << "### Warning only images (not '" << filename << "') are supported in the polygon_pattern_symbolizer\n";
return;
}
boost::optional<image_ptr> pat = (*marker)->get_bitmap_data();
if (!pat) return;
unsigned w=(*pat)->width();
unsigned h=(*pat)->height();
agg::row_accessor<agg::int8u> pattern_rbuf((agg::int8u*)(*pat)->getBytes(),w,h,w*4);
agg::span_allocator<agg::rgba8> sa;
agg::pixfmt_alpha_blend_rgba<agg::blender_rgba32_plain,
agg::row_accessor<agg::int8u>, agg::pixel32_type> pixf_pattern(pattern_rbuf);
img_source_type img_src(pixf_pattern);
unsigned num_geometries = feature->num_geometries();
pattern_alignment_e align = sym.get_alignment();
unsigned offset_x=0;
unsigned offset_y=0;
if (align == LOCAL_ALIGNMENT)
{
double x0=0,y0=0;
if (num_geometries>0) // FIXME: hmm...?
{
clipped_geometry_type clipped(feature->get_geometry(0));
clipped.clip_box(query_extent_.minx(),query_extent_.miny(),query_extent_.maxx(),query_extent_.maxy());
path_type path(t_,clipped,prj_trans);
path.vertex(&x0,&y0);
}
offset_x = unsigned(width_-x0);
offset_y = unsigned(height_-y0);
}
span_gen_type sg(img_src, offset_x, offset_y);
renderer_type rp(renb,sa, sg);
//metawriter_with_properties writer = sym.get_metawriter();
for (unsigned i=0;i<num_geometries;++i)
{
geometry_type & geom = feature->get_geometry(i);
if (geom.num_points() > 2)
{
clipped_geometry_type clipped(geom);
clipped.clip_box(query_extent_.minx(),query_extent_.miny(),query_extent_.maxx(),query_extent_.maxy());
path_type path(t_,clipped,prj_trans);
ras_ptr->add_path(path);
//if (writer.first) writer.first->add_polygon(path, *feature, t_, writer.second);
}
}
agg::render_scanlines(*ras_ptr, sl, rp);
}
void agg_renderer<T0,T1>::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> marker = marker_cache::instance().find(filename, true);
buffer_type & current_buffer = buffers_.top().get();
agg::rendering_buffer buf(current_buffer.bytes(), current_buffer.width(),
current_buffer.height(), current_buffer.row_size());
ras_ptr->reset();
value_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;
}
value_bool clip = get<value_bool, keys::clip>(sym, feature, common_.vars_);
value_double opacity = get<double, keys::opacity>(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_);
using color = agg::rgba8;
using order = agg::order_rgba;
using blender_type = agg::comp_op_adaptor_rgba_pre<color, order>;
using pixfmt_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using wrap_x_type = agg::wrap_mode_repeat;
using wrap_y_type = agg::wrap_mode_repeat;
using img_source_type = agg::image_accessor_wrap<agg::pixfmt_rgba32_pre,
wrap_x_type,
wrap_y_type>;
using span_gen_type = agg::span_pattern_rgba<img_source_type>;
using ren_base = agg::renderer_base<pixfmt_type>;
using renderer_type = agg::renderer_scanline_aa_alpha<ren_base,
agg::span_allocator<agg::rgba8>,
span_gen_type>;
pixfmt_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e, keys::comp_op>(sym, feature, common_.vars_)));
ren_base renb(pixf);
common_pattern_process_visitor<polygon_pattern_symbolizer, rasterizer> visitor(*ras_ptr, common_, sym, feature);
image_rgba8 image(util::apply_visitor(visitor, *marker));
unsigned w = image.width();
unsigned h = image.height();
agg::rendering_buffer pattern_rbuf((agg::int8u*)image.bytes(),w,h,w*4);
agg::pixfmt_rgba32_pre pixf_pattern(pattern_rbuf);
img_source_type img_src(pixf_pattern);
box2d<double> clip_box = clipping_extent(common_);
coord<unsigned, 2> offset(detail::offset(sym, feature, prj_trans, common_, clip_box));
span_gen_type sg(img_src, offset.x, offset.y);
agg::span_allocator<agg::rgba8> sa;
renderer_type rp(renb,sa, sg, unsigned(opacity * 255));
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(clip_box, 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>(); // optional affine transform
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, 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());
agg::scanline_u8 sl;
ras_ptr->filling_rule(agg::fill_even_odd);
agg::render_scanlines(*ras_ptr, sl, rp);
}
int main (int argc,char** argv)
{
namespace po = boost::program_options;
bool verbose = false;
bool auto_open = false;
int return_value = 0;
std::vector<std::string> svg_files;
mapnik::logger::instance().set_severity(mapnik::logger::error);
try
{
po::options_description desc("svg2png utility");
desc.add_options()
("help,h", "produce usage message")
("version,V","print version string")
("verbose,v","verbose output")
("open","automatically open the file after rendering (os x only)")
("svg",po::value<std::vector<std::string> >(),"svg file to read")
;
po::positional_options_description p;
p.add("svg",-1);
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).options(desc).positional(p).run(), vm);
po::notify(vm);
if (vm.count("version"))
{
std::clog <<"version " << MAPNIK_VERSION_STRING << std::endl;
return 1;
}
if (vm.count("help"))
{
std::clog << desc << std::endl;
return 1;
}
if (vm.count("verbose"))
{
verbose = true;
}
if (vm.count("open"))
{
auto_open = true;
}
if (vm.count("svg"))
{
svg_files=vm["svg"].as< std::vector<std::string> >();
}
else
{
std::clog << "please provide an svg file!" << std::endl;
return -1;
}
std::vector<std::string>::const_iterator itr = svg_files.begin();
if (itr == svg_files.end())
{
std::clog << "no svg files to render" << std::endl;
return 0;
}
xmlInitParser();
while (itr != svg_files.end())
{
std::string svg_name (*itr++);
if (verbose)
{
std::clog << "found: " << svg_name << "\n";
}
boost::optional<mapnik::marker_ptr> marker_ptr =
mapnik::marker_cache::instance().find(svg_name, false);
if (!marker_ptr)
{
std::clog << "svg2png error: could not open: '" << svg_name << "'\n";
return_value = -1;
continue;
}
mapnik::marker marker = **marker_ptr;
if (!marker.is_vector())
{
std::clog << "svg2png error: '" << svg_name << "' is not a valid vector!\n";
return_value = -1;
continue;
}
using pixfmt = agg::pixfmt_rgba32_pre;
using renderer_base = agg::renderer_base<pixfmt>;
using renderer_solid = agg::renderer_scanline_aa_solid<renderer_base>;
agg::rasterizer_scanline_aa<> ras_ptr;
agg::scanline_u8 sl;
double opacity = 1;
int w = marker.width();
int h = marker.height();
if (verbose)
{
std::clog << "found width of '" << w << "' and height of '" << h << "'\n";
}
// 10 pixel buffer to avoid edge clipping of 100% svg's
mapnik::image_32 im(w+0,h+0);
agg::rendering_buffer buf(im.raw_data(), im.width(), im.height(), im.width() * 4);
pixfmt pixf(buf);
renderer_base renb(pixf);
mapnik::box2d<double> const& bbox = (*marker.get_vector_data())->bounding_box();
mapnik::coord<double,2> c = bbox.center();
// center the svg marker on '0,0'
agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
// render the marker at the center of the marker box
mtx.translate(0.5 * im.width(), 0.5 * im.height());
mapnik::svg::vertex_stl_adapter<mapnik::svg::svg_path_storage> stl_storage((*marker.get_vector_data())->source());
mapnik::svg::svg_path_adapter svg_path(stl_storage);
mapnik::svg::svg_renderer_agg<mapnik::svg::svg_path_adapter,
agg::pod_bvector<mapnik::svg::path_attributes>,
renderer_solid,
agg::pixfmt_rgba32_pre > svg_renderer_this(svg_path,
(*marker.get_vector_data())->attributes());
svg_renderer_this.render(ras_ptr, sl, renb, mtx, opacity, bbox);
boost::algorithm::ireplace_last(svg_name,".svg",".png");
im.demultiply();
mapnik::save_to_file<mapnik::image_data_rgba8>(im.data(),svg_name,"png");
if (auto_open)
{
std::ostringstream s;
#ifdef DARWIN
s << "open " << svg_name;
#else
s << "xdg-open " << svg_name;
#endif
int ret = system(s.str().c_str());
if (ret != 0)
return_value = ret;
}
std::clog << "rendered to: " << svg_name << "\n";
}
}
catch (...)
{
std::clog << "Exception of unknown type!" << std::endl;
xmlCleanupParser();
return -1;
}
// only call this once, on exit
// to make sure valgrind output is clean
// http://xmlsoft.org/xmlmem.html
xmlCleanupParser();
return return_value;
}
void grid_renderer<T>::process(line_pattern_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
std::string filename = get<std::string>(sym, keys::file, feature, common_.vars_);
if (filename.empty()) return;
boost::optional<mapnik::marker_ptr> mark = marker_cache::instance().find(filename, true);
if (!mark) return;
if (!(*mark)->is_bitmap())
{
MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Only images (not '" << filename << "') are supported in the line_pattern_symbolizer";
return;
}
boost::optional<image_ptr> pat = (*mark)->get_bitmap_data();
if (!pat) return;
bool clip = get<value_bool>(sym, keys::clip, feature, common_.vars_, true);
double offset = get<value_double>(sym, keys::offset, feature, common_.vars_, 0.0);
double simplify_tolerance = get<value_double>(sym, keys::simplify_tolerance, feature, common_.vars_, 0.0);
double smooth = get<value_double>(sym, keys::smooth, feature, common_.vars_, false);
typedef typename grid_renderer_base_type::pixfmt_type pixfmt_type;
typedef typename grid_renderer_base_type::pixfmt_type::color_type color_type;
typedef agg::renderer_scanline_bin_solid<grid_renderer_base_type> renderer_type;
typedef boost::mpl::vector<clip_line_tag, transform_tag,
offset_transform_tag, affine_transform_tag,
simplify_tag, smooth_tag, stroke_tag> conv_types;
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();
int stroke_width = (*pat)->width();
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_);
}
box2d<double> clipping_extent = common_.query_extent_;
if (clip)
{
double padding = (double)(common_.query_extent_.width()/pixmap_.width());
double half_stroke = stroke_width/2.0;
if (half_stroke > 1)
padding *= half_stroke;
if (std::fabs(offset) > 0)
padding *= std::fabs(offset) * 1.2;
padding *= common_.scale_factor_;
clipping_extent.pad(padding);
}
// to avoid the complexity of using an agg pattern filter instead
// we create a line_symbolizer in order to fake the pattern
line_symbolizer line;
put<value_double>(line, keys::stroke_width, value_double(stroke_width));
// TODO: really should pass the offset to the fake line too, but
// this wasn't present in the previous version and makes the test
// fail - in this case, probably the test should be updated.
//put<value_double>(line, keys::offset, value_double(offset));
put<value_double>(line, keys::simplify_tolerance, value_double(simplify_tolerance));
put<value_double>(line, keys::smooth, value_double(smooth));
vertex_converter<box2d<double>, grid_rasterizer, line_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types, feature_impl>
converter(clipping_extent,*ras_ptr,line,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>(); // optional clip (default: true)
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
converter.set<stroke_tag>(); //always stroke
for (geometry_type & geom : feature.paths())
{
if (geom.size() > 1)
{
converter.apply(geom);
}
}
// render id
ren.color(color_type(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
void drawCurve(unsigned char* _data, int _width, int _height, LinkInfo& _info)
{
//============================================================
// AGG
agg::rendering_buffer rbuf;
rbuf.attach(_data, _width, _height, _width*4);
// Pixel format and basic primitives renderer
agg::pixfmt_bgra32 pixf(rbuf);
agg::renderer_base<agg::pixfmt_bgra32> renb(pixf);
//renb.clear(agg::rgba8(152, 185, 254, 0));
// Scanline renderer for solid filling.
agg::renderer_scanline_aa_solid<agg::renderer_base<agg::pixfmt_bgra32> > ren(renb);
// Rasterizer & scanline
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
// хранилище всех путей
agg::path_storage path;
// кривая безье которая строится по 4 точкам
agg::curve4 curve;
curve.approximation_method(agg::curve_approximation_method_e(agg::curve_inc)); // метод апроксимации, curve_inc - быстрый но много точек
curve.approximation_scale(0.7); //масштаб апроксимации
curve.angle_tolerance(agg::deg2rad(0));
curve.cusp_limit(agg::deg2rad(0));
const int offset = 3;
curve.init(
_info.point_start.left, _info.point_start.top, _info.point_start.left, _info.point_start.top,
_info.point_end.left, _info.point_end.top, _info.point_end.left, _info.point_end.top);
// добавляем путь безье
path.concat_path(curve);
// сам путь который рисуется, растерезатор
agg::conv_stroke<agg::path_storage> stroke(path);
stroke.width(2); // ширина линии
stroke.line_join(agg::line_join_e(agg::bevel_join)); // хз че такое
stroke.line_cap(agg::line_cap_e(agg::round_cap)); //обрезка концов
stroke.inner_join(agg::inner_join_e(agg::inner_miter)); // соединения внутри линии точек
stroke.inner_miter_limit(0);
ras.add_path(stroke);
// Setting the attrribute (color) & Rendering
ren.color(agg::rgba8(_info.colour.red * 255, _info.colour.green * 255, _info.colour.blue * 255, 255));
agg::render_scanlines(ras, sl, ren);
//============================================================
// хранилище всех путей
/*agg::path_storage path2;
// кривая безье которая строится по 4 точкам
agg::curve4 curve2;
curve2.approximation_method(agg::curve_approximation_method_e(agg::curve_inc)); // метод апроксимации, curve_inc - быстрый но много точек
curve2.approximation_scale(0.7); //масштаб апроксимации
curve2.angle_tolerance(agg::deg2rad(0));
curve2.cusp_limit(agg::deg2rad(0));
curve2.init(
_info.point_start.left, _info.point_start.top, _info.point_start.left + _info.start_offset, _info.point_start.top,
_info.point_end.left + _info.end_offset, _info.point_end.top, _info.point_end.left, _info.point_end.top);
// добавляем путь безье
path2.concat_path(curve2);
// сам путь который рисуется, растерезатор
agg::conv_stroke<agg::path_storage> stroke2(path2);
stroke2.width(2); // ширина линии
stroke2.line_join(agg::line_join_e(agg::bevel_join)); // хз че такое
stroke2.line_cap(agg::line_cap_e(agg::butt_cap)); //обрезка концов
stroke2.inner_join(agg::inner_join_e(agg::inner_miter)); // соединения внутри линии точек
stroke2.inner_miter_limit(1.01);
ras.add_path(stroke2);
// Setting the attrribute (color) & Rendering
ren.color(agg::rgba8(_info.colour.red * 255, _info.colour.green * 255, _info.colour.blue * 255, 255));
agg::render_scanlines(ras, sl, ren);*/
//============================================================
}
void grid_renderer<T>::process(line_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();
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_);
}
box2d<double> clipping_extent = common_.query_extent_;
bool clip = get<value_bool>(sym, keys::clip, feature, common_.vars_, false);
double width = get<value_double>(sym, keys::stroke_width, feature, common_.vars_,1.0);
double offset = get<value_double>(sym, keys::offset, feature, common_.vars_,0.0);
double simplify_tolerance = get<value_double>(sym, keys::simplify_tolerance, feature, common_.vars_,0.0);
double smooth = get<value_double>(sym, keys::smooth, feature, common_.vars_,false);
bool has_dash = has_key(sym, keys::stroke_dasharray);
if (clip)
{
double padding = (double)(common_.query_extent_.width()/pixmap_.width());
double half_stroke = width/2.0;
if (half_stroke > 1)
padding *= half_stroke;
if (std::fabs(offset) > 0)
padding *= std::fabs(offset) * 1.2;
padding *= common_.scale_factor_;
clipping_extent.pad(padding);
}
using vertex_converter_type = vertex_converter<clip_line_tag, clip_poly_tag, transform_tag,
affine_transform_tag,
simplify_tag, smooth_tag,
offset_transform_tag,
dash_tag, stroke_tag>;
vertex_converter_type converter(clipping_extent,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip)
{
geometry::geometry_types type = geometry::geometry_type(feature.get_geometry());
if (type == geometry::geometry_types::Polygon || type == geometry::geometry_types::MultiPolygon)
converter.template set<clip_poly_tag>();
else if (type == geometry::geometry_types::LineString || type == geometry::geometry_types::MultiLineString)
converter.template set<clip_line_tag>();
}
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
if (has_dash) converter.set<dash_tag>();
converter.set<stroke_tag>(); //always stroke
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());
// render id
ren.color(color_type(feature.id()));
ras_ptr->filling_rule(agg::fill_non_zero);
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
void agg_renderer<T0,T1>::process(line_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
color const& col = get<color, keys::stroke>(sym, feature, common_.vars_);
unsigned r=col.red();
unsigned g=col.green();
unsigned b=col.blue();
unsigned a=col.alpha();
double gamma = get<value_double, keys::stroke_gamma>(sym, feature, common_.vars_);
gamma_method_enum gamma_method = get<gamma_method_enum, keys::stroke_gamma_method>(sym, feature, common_.vars_);
ras_ptr->reset();
if (gamma != gamma_ || gamma_method != gamma_method_)
{
set_gamma_method(ras_ptr, gamma, gamma_method);
gamma_method_ = gamma_method;
gamma_ = gamma;
}
agg::rendering_buffer buf(current_buffer_->getBytes(),current_buffer_->width(),current_buffer_->height(), current_buffer_->getRowSize());
using color_type = agg::rgba8;
using order_type = agg::order_rgba;
using blender_type = agg::comp_op_adaptor_rgba_pre<color_type, order_type>; // comp blender
using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_comp_type>;
pixfmt_comp_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e, keys::comp_op>(sym, feature, common_.vars_)));
renderer_base renb(pixf);
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_);
box2d<double> clip_box = clipping_extent(common_);
value_bool clip = get<value_bool, keys::clip>(sym, feature, common_.vars_);
value_double width = get<value_double, keys::stroke_width>(sym, feature, common_.vars_);
value_double opacity = get<value_double,keys::stroke_opacity>(sym,feature, common_.vars_);
value_double offset = get<value_double, keys::offset>(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_);
line_rasterizer_enum rasterizer_e = get<line_rasterizer_enum, keys::line_rasterizer>(sym, feature, common_.vars_);
if (clip)
{
double padding = static_cast<double>(common_.query_extent_.width()/pixmap_.width());
double half_stroke = 0.5 * width;
if (half_stroke > 1)
{
padding *= half_stroke;
}
if (std::fabs(offset) > 0)
{
padding *= std::fabs(offset) * 1.2;
}
padding *= common_.scale_factor_;
clip_box.pad(padding);
// debugging
//box2d<double> inverse = query_extent_;
//inverse.pad(-padding);
//draw_geo_extent(inverse,mapnik::color("red"));
}
if (rasterizer_e == RASTERIZER_FAST)
{
using renderer_type = agg::renderer_outline_aa<renderer_base>;
using rasterizer_type = agg::rasterizer_outline_aa<renderer_type>;
agg::line_profile_aa profile(width * common_.scale_factor_, agg::gamma_power(gamma));
renderer_type ren(renb, profile);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
rasterizer_type ras(ren);
set_join_caps_aa(sym, ras, feature, common_.vars_);
vertex_converter<rasterizer_type,clip_line_tag, transform_tag,
affine_transform_tag,
simplify_tag, smooth_tag,
offset_transform_tag,
dash_tag, stroke_tag>
converter(clip_box,ras,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>(); // optional clip (default: true)
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
for (geometry_type const& geom : feature.paths())
{
if (geom.size() > 1)
{
vertex_adapter va(geom);
converter.apply(va);
}
}
}
else
{
vertex_converter<rasterizer,clip_line_tag, transform_tag,
affine_transform_tag,
simplify_tag, smooth_tag,
offset_transform_tag,
dash_tag, stroke_tag>
converter(clip_box,*ras_ptr,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>(); // optional clip (default: true)
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
if (has_key(sym, keys::stroke_dasharray))
converter.set<dash_tag>();
converter.set<stroke_tag>(); //always stroke
for (geometry_type const& geom : feature.paths())
{
if (geom.size() > 1)
{
vertex_adapter va(geom);
converter.apply(va);
}
}
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
renderer_type ren(renb);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
agg::scanline_u8 sl;
ras_ptr->filling_rule(agg::fill_non_zero);
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
void grid_renderer<T>::process(line_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;
}
value_bool clip = get<value_bool, keys::clip>(sym, feature, common_.vars_);
value_double offset = get<value_double, keys::offset>(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_);
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();
line_pattern_enum pattern = get<line_pattern_enum, keys::line_pattern>(sym, feature, common_.vars_);
std::size_t stroke_width = (pattern == LINE_PATTERN_WARP) ? mark->width() :
get<value_double, keys::stroke_width>(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_);
}
box2d<double> clipping_extent = common_.query_extent_;
if (clip)
{
double pad_per_pixel = static_cast<double>(common_.query_extent_.width()/common_.width_);
double pixels = std::ceil(std::max(stroke_width / 2.0 + std::fabs(offset),
(std::fabs(offset) * offset_converter_default_threshold)));
double padding = pad_per_pixel * pixels * common_.scale_factor_;
clipping_extent.pad(padding);
}
// to avoid the complexity of using an agg pattern filter instead
// we create a line_symbolizer in order to fake the pattern
line_symbolizer line;
put<value_double>(line, keys::stroke_width, value_double(stroke_width));
// TODO: really should pass the offset to the fake line too, but
// this wasn't present in the previous version and makes the test
// fail - in this case, probably the test should be updated.
//put<value_double>(line, keys::offset, value_double(offset));
put<value_double>(line, keys::simplify_tolerance, value_double(simplify_tolerance));
put<value_double>(line, keys::smooth, value_double(smooth));
using vertex_converter_type = vertex_converter<clip_line_tag, transform_tag,
affine_transform_tag,
simplify_tag,smooth_tag,
offset_transform_tag,stroke_tag>;
vertex_converter_type converter(clipping_extent,line,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>();
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
converter.set<stroke_tag>(); //always stroke
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());
// render id
ren.color(color_type(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
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);
}
}
}
virtual void on_draw() {
typedef agg::renderer_base<pixfmt> ren_base;
pixfmt pixf(rbuf_window());
ren_base renb(pixf);
renb.clear(agg::rgba(1, 1, 1));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
agg::path_storage path;
path.move_to(m_x[0], m_y[0]);
path.line_to((m_x[0] + m_x[1]) / 2,
(m_y[0] + m_y[1]) / 2); // This point is added only to check
// for numerical stability
path.line_to(m_x[1], m_y[1]);
path.line_to(m_x[2], m_y[2]);
path.line_to(m_x[2], m_y[2]); // This point is added only to check for
// numerical stability
path.move_to((m_x[0] + m_x[1]) / 2, (m_y[0] + m_y[1]) / 2);
path.line_to((m_x[1] + m_x[2]) / 2, (m_y[1] + m_y[2]) / 2);
path.line_to((m_x[2] + m_x[0]) / 2, (m_y[2] + m_y[0]) / 2);
path.close_polygon();
agg::line_cap_e cap = agg::butt_cap;
if (m_cap.cur_item() == 1) cap = agg::square_cap;
if (m_cap.cur_item() == 2) cap = agg::round_cap;
agg::line_join_e join = agg::miter_join;
if (m_join.cur_item() == 1) join = agg::miter_join_revert;
if (m_join.cur_item() == 2) join = agg::round_join;
if (m_join.cur_item() == 3) join = agg::bevel_join;
// (1)
agg::conv_stroke<agg::path_storage> stroke(path);
stroke.line_join(join);
stroke.line_cap(cap);
stroke.miter_limit(m_miter_limit.value());
stroke.width(m_width.value());
ras.add_path(stroke);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.8, 0.7, 0.6));
// (1)
// (2)
agg::conv_stroke<agg::path_storage> poly1(path);
poly1.width(1.5);
ras.add_path(poly1);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0, 0, 0));
// (2)
// (3)
agg::conv_dash<agg::conv_stroke<agg::path_storage> > poly2_dash(stroke);
agg::conv_stroke<agg::conv_dash<agg::conv_stroke<agg::path_storage> > >
poly2(poly2_dash);
poly2.miter_limit(4.0);
poly2.width(m_width.value() / 5.0);
poly2.line_cap(cap);
poly2.line_join(join);
poly2_dash.add_dash(20.0, m_width.value() / 2.5);
ras.add_path(poly2);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0, 0, 0.3));
// (3)
// (4)
ras.add_path(path);
agg::render_scanlines_aa_solid(ras, sl, renb,
agg::rgba(0.0, 0.0, 0.0, 0.2));
// (4)
agg::render_ctrl(ras, sl, renb, m_join);
agg::render_ctrl(ras, sl, renb, m_cap);
agg::render_ctrl(ras, sl, renb, m_width);
agg::render_ctrl(ras, sl, renb, m_miter_limit);
}
virtual void on_draw()
{
typedef agg::renderer_base<pixfmt> ren_base;
pixfmt pixf(rbuf_window());
ren_base renb(pixf);
renb.clear(agg::rgba(1, 1, 1));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
agg::line_cap_e cap = agg::butt_cap;
if(m_cap.cur_item() == 1) cap = agg::square_cap;
if(m_cap.cur_item() == 2) cap = agg::round_cap;
// Here we declare a very cheap-in-use path storage.
// It allocates space for at most 20 vertices in stack and
// never allocates memory. But be aware that adding more than
// 20 vertices is fatal!
//------------------------
typedef agg::path_base<
agg::vertex_stl_storage<
agg::pod_auto_vector<
agg::vertex_d, 20> > > path_storage_type;
path_storage_type path;
path.move_to(m_x[0], m_y[0]);
path.line_to(m_x[1], m_y[1]);
path.line_to((m_x[0]+m_x[1]+m_x[2]) / 3.0, (m_y[0]+m_y[1]+m_y[2]) / 3.0);
path.line_to(m_x[2], m_y[2]);
if(m_close.status()) path.close_polygon();
path.move_to((m_x[0] + m_x[1]) / 2, (m_y[0] + m_y[1]) / 2);
path.line_to((m_x[1] + m_x[2]) / 2, (m_y[1] + m_y[2]) / 2);
path.line_to((m_x[2] + m_x[0]) / 2, (m_y[2] + m_y[0]) / 2);
if(m_close.status()) path.close_polygon();
if(m_even_odd.status()) ras.filling_rule(agg::fill_even_odd);
// (1)
ras.add_path(path);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.7, 0.5, 0.1, 0.5));
// (1)
// Start of (2, 3, 4)
agg::conv_smooth_poly1<path_storage_type> smooth(path);
smooth.smooth_value(m_smooth.value());
// (2)
ras.add_path(smooth);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.1, 0.5, 0.7, 0.1));
// (2)
// (3)
agg::conv_stroke<agg::conv_smooth_poly1<path_storage_type> > smooth_outline(smooth);
ras.add_path(smooth_outline);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.0, 0.6, 0.0, 0.8));
// (3)
// (4)
agg::conv_curve<agg::conv_smooth_poly1<path_storage_type> > curve(smooth);
agg::conv_dash<agg::conv_curve<agg::conv_smooth_poly1<path_storage_type> >, agg::vcgen_markers_term> dash(curve);
agg::conv_stroke<agg::conv_dash<agg::conv_curve<agg::conv_smooth_poly1<path_storage_type> >, agg::vcgen_markers_term> > stroke(dash);
stroke.line_cap(cap);
stroke.width(m_width.value());
double k = ::pow(m_width.value(), 0.7);
agg::arrowhead ah;
ah.head(4 * k, 4 * k, 3 * k, 2 * k);
if(!m_close.status()) ah.tail(1 * k, 1.5 * k, 3 * k, 5 * k);
agg::conv_marker<agg::vcgen_markers_term, agg::arrowhead> arrow(dash.markers(), ah);
dash.add_dash(20.0, 5.0);
dash.add_dash(5.0, 5.0);
dash.add_dash(5.0, 5.0);
dash.dash_start(10);
ras.add_path(stroke);
ras.add_path(arrow);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.0, 0.0, 0.0));
// (4)
ras.filling_rule(agg::fill_non_zero);
agg::render_ctrl(ras, sl, renb, m_cap);
agg::render_ctrl(ras, sl, renb, m_width);
agg::render_ctrl(ras, sl, renb, m_smooth);
agg::render_ctrl(ras, sl, renb, m_close);
agg::render_ctrl(ras, sl, renb, m_even_odd);
}
void grid_renderer<T>::process(line_symbolizer const& sym,
Feature const& feature,
proj_transform const& prj_trans)
{
typedef coord_transform2<CoordTransform,geometry_type> path_type;
typedef agg::renderer_base<mapnik::pixfmt_gray16> ren_base;
typedef agg::renderer_scanline_bin_solid<ren_base> renderer;
agg::scanline_bin sl;
grid_rendering_buffer buf(pixmap_.raw_data(), width_, height_, width_);
mapnik::pixfmt_gray16 pixf(buf);
ren_base renb(pixf);
renderer ren(renb);
ras_ptr->reset();
stroke const& stroke_ = sym.get_stroke();
for (unsigned i=0;i<feature.num_geometries();++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 1)
{
path_type path(t_,geom,prj_trans);
if (stroke_.has_dash())
{
agg::conv_dash<path_type> dash(path);
dash_array const& d = stroke_.get_dash_array();
dash_array::const_iterator itr = d.begin();
dash_array::const_iterator end = d.end();
for (;itr != end;++itr)
{
dash.add_dash(itr->first * scale_factor_,
itr->second * scale_factor_);
}
agg::conv_stroke<agg::conv_dash<path_type > > stroke(dash);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width() * scale_factor_);
ras_ptr->add_path(stroke);
}
else
{
agg::conv_stroke<path_type> stroke(path);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width() * scale_factor_);
ras_ptr->add_path(stroke);
}
}
}
// render id
ren.color(mapnik::gray16(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
void agg_renderer<T>::process(line_symbolizer const& sym,
Feature const& feature,
proj_transform const& prj_trans)
{
typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base;
typedef coord_transform2<CoordTransform,geometry_type> path_type;
stroke const& stroke_ = sym.get_stroke();
color const& col = stroke_.get_color();
unsigned r=col.red();
unsigned g=col.green();
unsigned b=col.blue();
unsigned a=col.alpha();
agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
agg::pixfmt_rgba32_plain pixf(buf);
if (sym.get_rasterizer() == RASTERIZER_FAST)
{
typedef agg::renderer_outline_aa<ren_base> renderer_type;
typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type;
agg::line_profile_aa profile;
//agg::line_profile_aa profile(stroke_.get_width() * scale_factor_, agg::gamma_none());
profile.width(stroke_.get_width() * scale_factor_);
ren_base base_ren(pixf);
renderer_type ren(base_ren, profile);
ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity())));
//ren.clip_box(0,0,width_,height_);
rasterizer_type ras(ren);
ras.line_join(agg::outline_miter_accurate_join);
ras.round_cap(true);
for (unsigned i=0;i<feature.num_geometries();++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 1)
{
path_type path(t_,geom,prj_trans);
ras.add_path(path);
}
}
}
else
{
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
agg::scanline_p8 sl;
ren_base renb(pixf);
renderer ren(renb);
ras_ptr->reset();
switch (stroke_.get_gamma_method())
{
case GAMMA_POWER:
ras_ptr->gamma(agg::gamma_power(stroke_.get_gamma()));
break;
case GAMMA_LINEAR:
ras_ptr->gamma(agg::gamma_linear(0.0, stroke_.get_gamma()));
break;
case GAMMA_NONE:
ras_ptr->gamma(agg::gamma_none());
break;
case GAMMA_THRESHOLD:
ras_ptr->gamma(agg::gamma_threshold(stroke_.get_gamma()));
break;
case GAMMA_MULTIPLY:
ras_ptr->gamma(agg::gamma_multiply(stroke_.get_gamma()));
break;
default:
ras_ptr->gamma(agg::gamma_power(stroke_.get_gamma()));
}
metawriter_with_properties writer = sym.get_metawriter();
for (unsigned i=0;i<feature.num_geometries();++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 1)
{
path_type path(t_,geom,prj_trans);
if (stroke_.has_dash())
{
agg::conv_dash<path_type> dash(path);
dash_array const& d = stroke_.get_dash_array();
dash_array::const_iterator itr = d.begin();
dash_array::const_iterator end = d.end();
for (;itr != end;++itr)
{
dash.add_dash(itr->first * scale_factor_,
itr->second * scale_factor_);
}
agg::conv_stroke<agg::conv_dash<path_type > > stroke(dash);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width() * scale_factor_);
ras_ptr->add_path(stroke);
}
else
{
agg::conv_stroke<path_type> stroke(path);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width() * scale_factor_);
ras_ptr->add_path(stroke);
if (writer.first) writer.first->add_line(path, feature, t_, writer.second);
}
}
}
ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
int main(int argc, char* argv[])
{
if(argc < 4)
{
printf("usage: bezier_test <width> <height> <number_of_curves>\n");
return 1;
}
unsigned w = atoi(argv[1]);
unsigned h = atoi(argv[2]);
unsigned n = atoi(argv[3]);
if(w < 20 || h < 20)
{
printf("Width and hight must be at least 20\n");
return 1;
}
if(w > 4096 || h > 4096)
{
printf("Width and hight mustn't exceed 4096\n");
return 1;
}
unsigned stride = (w * 3 + 3) / 4 * 4;
unsigned char* frame_buffer = new unsigned char[stride * h];
agg::rendering_buffer rbuf;
rbuf.attach((unsigned char*)frame_buffer, w, h, stride);
agg::pixfmt_bgr24 pixf(rbuf);
agg::renderer_base<agg::pixfmt_bgr24> renb(pixf);
agg::renderer_scanline_aa_solid<agg::renderer_base<agg::pixfmt_bgr24> > ren(renb);
renb.clear(agg::rgba(1.0, 1.0, 1.0));
clock_t t1 = clock();
agg::curve4 curve;
agg::conv_stroke<agg::curve4> poly(curve);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
unsigned i;
for(i = 0; i < n; i++)
{
poly.width(double(rand() % 3500 + 500) / 500.0);
curve.init(rand() % w, rand() % h,
rand() % w, rand() % h,
rand() % w, rand() % h,
rand() % w, rand() % h);
ren.color(agg::rgba8(rand() & 0xFF,
rand() & 0xFF,
rand() & 0xFF,
rand() & 0xFF));
ras.add_path(poly, 0);
agg::render_scanlines(ras, sl, ren);
}
clock_t t2 = clock();
double sec = double(t2 - t1) / CLOCKS_PER_SEC;
printf("%10.3f sec, %10.3f curves per sec\n", sec, double(n) / sec);
write_bmp_24("output.bmp", (unsigned char*)frame_buffer, w, h, stride);
delete [] frame_buffer;
return 0;
}
int main (int argc,char** argv)
{
namespace po = boost::program_options;
bool verbose=false;
std::vector<std::string> svg_files;
try
{
po::options_description desc("svg2png utility");
desc.add_options()
("help,h", "produce usage message")
("version,V","print version string")
("verbose,v","verbose output")
("svg",po::value<std::vector<std::string> >(),"svg file to read")
;
po::positional_options_description p;
p.add("svg",-1);
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).options(desc).positional(p).run(), vm);
po::notify(vm);
if (vm.count("version"))
{
std::clog<<"version 0.3.0" << std::endl;
return 1;
}
if (vm.count("help"))
{
std::clog << desc << std::endl;
return 1;
}
if (vm.count("verbose"))
{
verbose = true;
}
if (vm.count("svg"))
{
svg_files=vm["svg"].as< std::vector<std::string> >();
}
else
{
std::clog << "please provide an svg file!" << std::endl;
return -1;
}
std::vector<std::string>::const_iterator itr = svg_files.begin();
if (itr == svg_files.end())
{
std::clog << "no svg files to render" << std::endl;
return 0;
}
while (itr != svg_files.end())
{
std::string svg_name (*itr++);
boost::optional<mapnik::marker_ptr> marker_ptr = mapnik::marker_cache::instance()->find(svg_name, false);
if (marker_ptr) {
mapnik::marker marker = **marker_ptr;
if (marker.is_vector()) {
typedef agg::pixfmt_rgba32_plain pixfmt;
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
agg::rasterizer_scanline_aa<> ras_ptr;
agg::scanline_u8 sl;
double opacity = 1;
double scale_factor_ = .95;
int w = marker.width();
int h = marker.height();
mapnik::image_32 im(w,h);
agg::rendering_buffer buf(im.raw_data(), w, h, w * 4);
pixfmt pixf(buf);
renderer_base renb(pixf);
mapnik::box2d<double> const& bbox = (*marker.get_vector_data())->bounding_box();
mapnik::coord<double,2> c = bbox.center();
// center the svg marker on '0,0'
agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
// apply symbol transformation to get to map space
mtx *= agg::trans_affine_scaling(scale_factor_);
// render the marker at the center of the marker box
mtx.translate(0.5 * w, 0.5 * h);
mapnik::svg::vertex_stl_adapter<mapnik::svg::svg_path_storage> stl_storage((*marker.get_vector_data())->source());
mapnik::svg::svg_path_adapter svg_path(stl_storage);
mapnik::svg::svg_renderer<mapnik::svg::svg_path_adapter,
agg::pod_bvector<mapnik::svg::path_attributes>,
renderer_solid,
agg::pixfmt_rgba32_plain > svg_renderer_this(svg_path,
(*marker.get_vector_data())->attributes());
svg_renderer_this.render(ras_ptr, sl, renb, mtx, opacity, bbox);
boost::algorithm::ireplace_last(svg_name,".svg",".png");
mapnik::save_to_file<mapnik::image_data_32>(im.data(),svg_name,"png");
std::ostringstream s;
s << "open " << svg_name;
return system(s.str().c_str());
}
}
}
}
catch (...)
{
std::clog << "Exception of unknown type!" << std::endl;
return -1;
}
return 0;
}
virtual void on_draw()
{
typedef agg::renderer_base<agg::pixfmt_bgra32> ren_base;
typedef agg::renderer_base<agg::pixfmt_bgra32_pre> ren_base_pre;
agg::gamma_lut<agg::int8u, agg::int8u> lut(2.0);
agg::pixfmt_bgra32 pixf(rbuf_window());
ren_base renb(pixf);
agg::pixfmt_bgra32_pre pixf_pre(rbuf_window());
ren_base_pre renb_pre(pixf_pre);
// Clear the window with a gradient
agg::pod_vector<agg::rgba8> gr(pixf_pre.width());
unsigned i;
for(i = 0; i < pixf.width(); i++)
{
gr.add(agg::rgba8(255, 255, 0).gradient(agg::rgba8(0, 255, 255),
double(i) / pixf.width()));
}
for(i = 0; i < pixf.height(); i++)
{
renb.copy_color_hspan(0, i, pixf.width(), &gr[0]);
}
pixf.apply_gamma_dir(lut);
agg::rasterizer_scanline_aa<> ras;
agg::rasterizer_compound_aa<agg::rasterizer_sl_clip_dbl> rasc;
agg::scanline_u8 sl;
agg::span_allocator<agg::rgba8> alloc;
// Draw two triangles
ras.move_to_d(0, 0);
ras.line_to_d(width(), 0);
ras.line_to_d(width(), height());
agg::render_scanlines_aa_solid(ras, sl, renb,
agg::rgba8(lut.dir(0),
lut.dir(100),
lut.dir(0)));
ras.move_to_d(0, 0);
ras.line_to_d(0, height());
ras.line_to_d(width(), 0);
agg::render_scanlines_aa_solid(ras, sl, renb,
agg::rgba8(lut.dir(0),
lut.dir(100),
lut.dir(100)));
agg::trans_affine mtx;
mtx *= agg::trans_affine_scaling(4.0);
mtx *= agg::trans_affine_translation(150, 100);
agg::conv_transform<agg::path_storage> trans(m_path, mtx);
agg::conv_curve<agg::conv_transform<agg::path_storage> > curve(trans);
agg::conv_stroke
<agg::conv_curve
<agg::conv_transform
<agg::path_storage> > > stroke(curve);
compose_path();
agg::rgba8 styles[4];
if(m_invert_order.status())
{
rasc.layer_order(agg::layer_inverse);
}
else
{
rasc.layer_order(agg::layer_direct);
}
styles[3] = agg::rgba8(lut.dir(255),
lut.dir(0),
lut.dir(108),
200).premultiply();
styles[2] = agg::rgba8(lut.dir(51),
lut.dir(0),
lut.dir(151),
180).premultiply();
styles[1] = agg::rgba8(lut.dir(143),
lut.dir(90),
lut.dir(6),
200).premultiply();
styles[0] = agg::rgba8(lut.dir(0),
lut.dir(0),
lut.dir(255),
220).premultiply();
style_handler sh(styles, 4);
stroke.width(m_width.value());
rasc.reset();
rasc.master_alpha(3, m_alpha1.value());
rasc.master_alpha(2, m_alpha2.value());
rasc.master_alpha(1, m_alpha3.value());
rasc.master_alpha(0, m_alpha4.value());
agg::ellipse ell(220.0, 180.0, 120.0, 10.0, 128, false);
agg::conv_stroke<agg::ellipse> str_ell(ell);
str_ell.width(m_width.value() / 2);
rasc.styles(3, -1);
rasc.add_path(str_ell);
rasc.styles(2, -1);
rasc.add_path(ell);
rasc.styles(1, -1);
rasc.add_path(stroke);
rasc.styles(0, -1);
rasc.add_path(curve);
agg::render_scanlines_compound_layered(rasc, sl, renb_pre, alloc, sh);
agg::render_ctrl(ras, sl, renb, m_width);
agg::render_ctrl(ras, sl, renb, m_alpha1);
agg::render_ctrl(ras, sl, renb, m_alpha2);
agg::render_ctrl(ras, sl, renb, m_alpha3);
agg::render_ctrl(ras, sl, renb, m_alpha4);
agg::render_ctrl(ras, sl, renb, m_invert_order);
pixf.apply_gamma_inv(lut);
}
