static void write_paths_transparent_rec(FILE *fout, potrace_path_t *tree) {
potrace_path_t *p, *q;
for (p=tree; p; p=p->sibling) {
if (info.grouping == 2) {
fprintf(fout, "<g>\n");
}
if (info.grouping != 0) {
column = fprintf(fout, "<path d=\"");
newline = 1;
lastop = 0;
}
if (info.debug == 1) {
svg_jaggy_path(fout, p->priv->pt, p->priv->len, 1);
} else {
svg_path(fout, &p->curve, 1);
}
for (q=p->childlist; q; q=q->sibling) {
if (info.debug == 1) {
svg_jaggy_path(fout, q->priv->pt, q->priv->len, 0);
} else {
svg_path(fout, &q->curve, 0);
}
}
if (info.grouping != 0) {
fprintf(fout, "\"/>\n");
}
for (q=p->childlist; q; q=q->sibling) {
write_paths_transparent_rec(fout, q->childlist);
}
if (info.grouping == 2) {
fprintf(fout, "</g>\n");
}
}
}
virtual void operator()(vector_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>;
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
using svg_attribute_type = agg::pod_bvector<svg::path_attributes>;
using svg_renderer_type = svg::svg_renderer_agg<svg_path_adapter,
svg_attribute_type,
renderer_type,
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);
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);
render_vector_marker(svg_renderer, *ras_ptr_, renb, thunk.src_->bounding_box(), offset_tr, thunk.opacity_, thunk.snap_to_pixels_);
}
void render_pattern<image_rgba8>(rasterizer & ras,
marker_svg const& marker,
agg::trans_affine const& tr,
double opacity,
image_rgba8 & image)
{
using pixfmt = agg::pixfmt_rgba32_pre;
using renderer_base = agg::renderer_base<pixfmt>;
using renderer_solid = agg::renderer_scanline_aa_solid<renderer_base>;
agg::scanline_u8 sl;
mapnik::box2d<double> const& bbox = marker.bounding_box() * tr;
mapnik::coord<double,2> c = bbox.center();
agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
mtx.translate(0.5 * bbox.width(), 0.5 * bbox.height());
mtx = tr * mtx;
agg::rendering_buffer buf(image.bytes(), image.width(), image.height(), image.row_size());
pixfmt pixf(buf);
renderer_base renb(pixf);
mapnik::svg::vertex_stl_adapter<mapnik::svg::svg_path_storage> stl_storage(marker.get_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,
pixfmt > svg_renderer(svg_path,
marker.get_data()->attributes());
svg_renderer.render(ras, sl, renb, mtx, opacity, bbox);
}
cairo_surface_ptr operator()(marker_svg const & marker) const
{
box2d<double> bbox(marker.bounding_box());
agg::trans_affine tr(transform(bbox));
double width = std::max(1.0, std::round(bbox.width()));
double height = std::max(1.0, std::round(bbox.height()));
cairo_rectangle_t extent { 0, 0, width, height };
cairo_surface_ptr surface(
cairo_recording_surface_create(
CAIRO_CONTENT_COLOR_ALPHA, &extent),
cairo_surface_closer());
cairo_ptr cairo = create_context(surface);
cairo_context context(cairo);
svg_storage_type & svg = *marker.get_data();
svg_attribute_type const& svg_attributes = svg.attributes();
svg::vertex_stl_adapter<svg::svg_path_storage> stl_storage(
svg.source());
svg::svg_path_adapter svg_path(stl_storage);
render_vector_marker(context, svg_path, svg_attributes,
bbox, tr, opacity_);
return surface;
}
std::shared_ptr<image_data_32> render_pattern(rasterizer & ras,
marker const& marker,
agg::trans_affine const& tr,
double opacity)
{
using pixfmt = agg::pixfmt_rgba32_pre;
using renderer_base = agg::renderer_base<pixfmt>;
using renderer_solid = agg::renderer_scanline_aa_solid<renderer_base>;
agg::scanline_u8 sl;
mapnik::box2d<double> const& bbox = (*marker.get_vector_data())->bounding_box() * tr;
mapnik::coord<double,2> c = bbox.center();
agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
mtx.translate(0.5 * bbox.width(), 0.5 * bbox.height());
mtx = tr * mtx;
std::shared_ptr<mapnik::image_data_32> image = std::make_shared<mapnik::image_data_32>(bbox.width(), bbox.height());
agg::rendering_buffer buf(image->getBytes(), image->width(), image->height(), image->width() * 4);
pixfmt pixf(buf);
renderer_base renb(pixf);
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(svg_path,
(*marker.get_vector_data())->attributes());
svg_renderer.render(ras, sl, renb, mtx, opacity, bbox);
return image;
}
int operator() (mapnik::marker_svg const& marker)
{
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_rgba8 im(w+0,h+0);
agg::rendering_buffer buf(im.bytes(), im.width(), im.height(), im.row_size());
pixfmt pixf(buf);
renderer_base renb(pixf);
mapnik::box2d<double> const& bbox = marker.get_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_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_data()->attributes());
svg_renderer_this.render(ras_ptr, sl, renb, mtx, opacity, bbox);
std::string png_name(svg_name_);
boost::algorithm::ireplace_last(png_name,".svg",".png");
demultiply_alpha(im);
mapnik::save_to_file<mapnik::image_rgba8>(im,png_name,"png");
int status = 0;
if (auto_open_)
{
std::ostringstream s;
#ifdef DARWIN
s << "open " << png_name;
#else
s << "xdg-open " << png_name;
#endif
int ret = std::system(s.str().c_str());
if (ret != 0)
status = ret;
}
std::clog << "rendered to: " << png_name << "\n";
return status;
}
void grid_renderer<T>::render_marker(Feature const& feature, unsigned int step, const int x, const int y, marker &marker, const agg::trans_affine & tr, double opacity)
{
if (marker.is_vector())
{
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();
box2d<double> const& bbox = (*marker.get_vector_data())->bounding_box();
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 *= tr;
mtx *= agg::trans_affine_scaling(scale_factor_*(1.0/step));
// render the marker at the center of the marker box
mtx.translate(x+0.5 * marker.width(), y+0.5 * marker.height());
vertex_stl_adapter<svg_path_storage> stl_storage((*marker.get_vector_data())->source());
svg_path_adapter svg_path(stl_storage);
svg_renderer<svg_path_adapter,
agg::pod_bvector<path_attributes>,
renderer,
mapnik::pixfmt_gray16> svg_renderer(svg_path,
(*marker.get_vector_data())->attributes());
svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), mtx, opacity, bbox);
}
else
{
image_data_32 const& data = **marker.get_bitmap_data();
if (step == 1 && scale_factor_ == 1.0)
{
pixmap_.set_rectangle(feature.id(), data, x, y);
}
else
{
double ratio = (1.0/step);
image_data_32 target(ratio * data.width(), ratio * data.height());
mapnik::scale_image_agg<image_data_32>(target,data, SCALING_NEAR,
scale_factor_, 0.0, 0.0, 1.0, ratio);
pixmap_.set_rectangle(feature.id(), target, x, y);
}
}
pixmap_.add_feature(feature);
}
static void write_paths_opaque(FILE *fout, potrace_path_t *tree) {
potrace_path_t *p, *q;
int c;
for (p=tree; p; p=p->sibling) {
if (info.group) {
fprintf(fout, "<g>\n");
fprintf(fout, "<g>\n");
}
c = fprintf(fout, "<path fill=\"#%06x\" stroke=\"none\" d=\"", info.color);
column = c;
newline = 1;
lastop = 0;
if (info.debug == 1) {
svg_jaggy_path(fout, p->priv->pt, p->priv->len, 1);
} else {
svg_path(fout, &p->curve, 1);
}
fprintf(fout, "\"/>\n");
for (q=p->childlist; q; q=q->sibling) {
c = fprintf(fout, "<path fill=\"#%06x\" stroke=\"none\" d=\"", info.fillcolor);
column = c;
newline = 1;
lastop = 0;
if (info.debug == 1) {
svg_jaggy_path(fout, q->priv->pt, q->priv->len, 1);
} else {
svg_path(fout, &q->curve, 1);
}
fprintf(fout, "\"/>\n");
}
if (info.group) {
fprintf(fout, "</g>\n");
}
for (q=p->childlist; q; q=q->sibling) {
write_paths_opaque(fout, q->childlist);
}
if (info.group) {
fprintf(fout, "</g>\n");
}
}
}
void operator() (marker_svg const& marker)
{
mapnik::svg_path_ptr vmarker = marker.get_data();
if (vmarker)
{
box2d<double> bbox = vmarker->bounding_box();
agg::trans_affine marker_tr = tr_;
if (recenter_)
{
coord<double,2> c = bbox.center();
marker_tr = agg::trans_affine_translation(-c.x,-c.y);
marker_tr *= tr_;
}
marker_tr *= agg::trans_affine_scaling(common_.scale_factor_);
agg::pod_bvector<svg::path_attributes> const & attributes = vmarker->attributes();
svg::vertex_stl_adapter<svg::svg_path_storage> stl_storage(vmarker->source());
svg::svg_path_adapter svg_path(stl_storage);
marker_tr.translate(pos_.x, pos_.y);
render_vector_marker(context_, svg_path, attributes, bbox, marker_tr, opacity_);
}
}
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_);
}
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;
}
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;
}
