image_type render(mapnik::Map const & map, double scale_factor) const
{
mapnik::grid grid(map.width(), map.height(), "__id__");
mapnik::grid_renderer<mapnik::grid> ren(map, grid, scale_factor);
ren.apply();
image_type image(map.width(), map.height());
convert(grid.data(), image);
return image;
}
image_type render(mapnik::Map const & map, double scale_factor) const
{
mapnik::cairo_surface_ptr image_surface(
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, map.width(), map.height()),
mapnik::cairo_surface_closer());
mapnik::cairo_ptr image_context(mapnik::create_context(image_surface));
mapnik::cairo_renderer<mapnik::cairo_ptr> ren(map, image_context, scale_factor);
ren.apply();
image_type image(map.width(), map.height());
mapnik::cairo_image_to_rgba8(image, image_surface);
return image;
}
image_type render(mapnik::Map const & map, double scale_factor) const
{
image_type image(map.width(), map.height());
mapnik::agg_renderer<image_type> ren(map, image, scale_factor);
ren.apply();
return image;
}
result test(std::string const & name, mapnik::Map const & map, double scale_factor) const
{
typename Renderer::image_type image(ren.render(map, scale_factor));
boost::filesystem::path reference = reference_dir / image_file_name(name, map.width(), map.height(), scale_factor, true, Renderer::ext);
bool reference_exists = boost::filesystem::exists(reference);
result res;
res.state = reference_exists ? STATE_OK : STATE_OVERWRITE;
res.name = name;
res.renderer_name = Renderer::name;
res.scale_factor = scale_factor;
res.size = map_size(map.width(), map.height());
res.reference_image_path = reference;
res.diff = reference_exists ? ren.compare(image, reference) : 0;
if (res.diff)
{
boost::filesystem::create_directories(output_dir);
boost::filesystem::path path = output_dir / image_file_name(name, map.width(), map.height(), scale_factor, false, Renderer::ext);
res.actual_image_path = path;
res.state = STATE_FAIL;
ren.save(image, path);
}
if ((res.diff && overwrite) || !reference_exists)
{
ren.save(image, reference);
res.state = STATE_OVERWRITE;
}
return res;
}
void render_agg(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
{
unsigned width=map.width();
unsigned height=map.height();
image_32 buf(width,height);
mapnik::agg_renderer<image_32> ren(map,buf,scaling_factor);
try
{
mapnik::auto_cpu_timer t(std::clog, "rendering took: ");
ren.apply();
QImage image((uchar*)buf.raw_data(),width,height,QImage::Format_ARGB32);
pix = QPixmap::fromImage(image.rgbSwapped());
}
catch (mapnik::config_error & ex)
{
std::cerr << ex.what() << std::endl;
}
catch (const std::exception & ex)
{
std::cerr << "exception: " << ex.what() << std::endl;
}
catch (...)
{
std::cerr << "Unknown exception caught!\n";
}
}
void render_to_file1(mapnik::Map const& map,
std::string const& filename,
std::string const& format)
{
if (format == "svg-ng")
{
#if defined(SVG_RENDERER)
std::ofstream file (filename.c_str(), std::ios::out|std::ios::trunc|std::ios::binary);
if (!file)
{
throw mapnik::image_writer_exception("could not open file for writing: " + filename);
}
using iter_type = std::ostream_iterator<char>;
iter_type output_stream_iterator(file);
mapnik::svg_renderer<iter_type> ren(map,output_stream_iterator);
ren.apply();
#else
throw mapnik::image_writer_exception("SVG backend not available, cannot write to format: " + format);
#endif
}
else if (format == "pdf" || format == "svg" || format =="ps" || format == "ARGB32" || format == "RGB24")
{
#if defined(HAVE_CAIRO)
mapnik::save_to_cairo_file(map,filename,format,1.0);
#else
throw mapnik::image_writer_exception("Cairo backend not available, cannot write to format: " + format);
#endif
}
else
{
mapnik::image_any image(map.width(),map.height());
render(map,image,1.0,0,0);
mapnik::save_to_file(image,filename,format);
}
}
image_type render(mapnik::Map const & map, double scale_factor) const
{
std::ostringstream ss(std::stringstream::binary);
mapnik::cairo_surface_ptr image_surface(
SurfaceCreateFunction(write, &ss, map.width(), map.height()),
mapnik::cairo_surface_closer());
mapnik::cairo_ptr image_context(mapnik::create_context(image_surface));
mapnik::cairo_renderer<mapnik::cairo_ptr> ren(map, image_context, scale_factor);
ren.apply();
cairo_surface_finish(&*image_surface);
return ss.str();
}
void render_with_vars(mapnik::Map const& map,
mapnik::image_any& image,
boost::python::dict const& d,
double scale_factor = 1.0,
unsigned offset_x = 0u,
unsigned offset_y = 0u)
{
mapnik::attributes vars = mapnik::dict2attr(d);
mapnik::request req(map.width(),map.height(),map.get_current_extent());
req.set_buffer_size(map.buffer_size());
python_unblock_auto_block b;
mapnik::util::apply_visitor(agg_renderer_visitor_3(map, req, vars, scale_factor, offset_x, offset_y), image);
}
void render_to_file2(const mapnik::Map& map,const std::string& filename)
{
std::string format = mapnik::guess_type(filename);
if (format == "pdf" || format == "svg" || format =="ps")
{
#if defined(HAVE_CAIRO)
mapnik::save_to_cairo_file(map,filename,format);
#else
throw mapnik::ImageWriterException("Cairo backend not available, cannot write to format: " + format);
#endif
}
else
{
mapnik::image_32 image(map.width(),map.height());
render(map,image,1.0,0,0);
mapnik::save_to_file(image,filename);
}
}
void render_to_file1(mapnik::Map const& map,
std::string const& filename,
std::string const& format)
{
if (format == "pdf" || format == "svg" || format =="ps" || format == "ARGB32" || format == "RGB24")
{
#if defined(HAVE_CAIRO)
mapnik::save_to_cairo_file(map,filename,format,1.0);
#else
throw mapnik::ImageWriterException("Cairo backend not available, cannot write to format: " + format);
#endif
}
else
{
mapnik::image_32 image(map.width(),map.height());
render(map,image,1.0,0,0);
mapnik::save_to_file(image,filename,format);
}
}
void render_cairo(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
{
// FIXME
#ifdef HAVE_CAIRO
mapnik::cairo_surface_ptr image_surface(cairo_image_surface_create(CAIRO_FORMAT_ARGB32,map.width(),map.height()),
mapnik::cairo_surface_closer());
mapnik::cairo_ptr cairo = mapnik::create_context(image_surface);
if (cairo)
{
mapnik::auto_cpu_timer t(std::clog, "rendering took: ");
mapnik::cairo_renderer<mapnik::cairo_ptr> renderer(map, cairo, scaling_factor);
renderer.apply();
}
mapnik::image_rgba8 data(map.width(), map.height());
mapnik::cairo_image_to_rgba8(data, image_surface);
QImage image((uchar*)data.getBytes(),data.width(),data.height(),QImage::Format_ARGB32);
pix = QPixmap::fromImage(image.rgbSwapped());
#endif
}
image_type render(mapnik::Map & map, double scale_factor, map_size const & tiles) const
{
mapnik::box2d<double> box = map.get_current_extent();
image_type image(map.width(), map.height());
map.resize(image.width() / tiles.width, image.height() / tiles.height);
double tile_box_width = box.width() / tiles.width;
double tile_box_height = box.height() / tiles.height;
for (std::size_t tile_y = 0; tile_y < tiles.height; tile_y++)
{
for (std::size_t tile_x = 0; tile_x < tiles.width; tile_x++)
{
mapnik::box2d<double> tile_box(
box.minx() + tile_x * tile_box_width,
box.miny() + tile_y * tile_box_height,
box.minx() + (tile_x + 1) * tile_box_width,
box.miny() + (tile_y + 1) * tile_box_height);
map.zoom_to_box(tile_box);
image_type tile(ren.render(map, scale_factor));
set_rectangle(tile, image, tile_x * tile.width(), (tiles.height - 1 - tile_y) * tile.height());
}
}
return image;
}
bool make_vector_tile(tile &tile,
unsigned int path_multiplier,
mapnik::Map const& map,
int buffer_size,
double scale_factor,
unsigned int offset_x,
unsigned int offset_y,
unsigned int tolerance,
const std::string &image_format,
mapnik::scaling_method_e scaling_method,
double scale_denominator,
boost::optional<const post_processor &> pp) {
typedef backend backend_type;
typedef mapnik::vector::processor<backend_type> renderer_type;
backend_type backend(tile.mapnik_tile(), path_multiplier, map, pp);
mapnik::request request(map.width(),
map.height(),
map.get_current_extent());
request.set_buffer_size(buffer_size);
renderer_type ren(backend,
map,
request,
scale_factor,
offset_x,
offset_y,
tolerance,
image_format,
scaling_method);
ren.apply(scale_denominator);
return ren.painted();
}
mapnik::font_set fontset("fontset");
// NOTE: this is a valid font, but will fail because none are registered
fontset.add_face_name("DejaVu Sans Book");
m.insert_fontset("fontset", fontset);
mapnik::layer lyr("layer");
lyr.set_datasource(ds);
lyr.add_style("style");
m.add_layer(lyr);
mapnik::feature_type_style the_style;
mapnik::rule r;
mapnik::text_symbolizer text_sym;
mapnik::text_placements_ptr placement_finder = std::make_shared<mapnik::text_placements_dummy>();
placement_finder->defaults.format_defaults.face_name = "DejaVu Sans Book";
placement_finder->defaults.format_defaults.text_size = 10.0;
placement_finder->defaults.format_defaults.fill = mapnik::color(0,0,0);
placement_finder->defaults.format_defaults.fontset = fontset;
placement_finder->defaults.set_format_tree(std::make_shared<mapnik::formatting::text_node>(mapnik::parse_expression("[name]")));
mapnik::put<mapnik::text_placements_ptr>(text_sym, mapnik::keys::text_placements_, placement_finder);
r.append(std::move(text_sym));
the_style.add_rule(std::move(r));
m.insert_style("style", std::move(the_style) );
m.zoom_to_box(mapnik::box2d<double>(-256,-256,
256,256));
mapnik::image_rgba8 buf(m.width(),m.height());
mapnik::agg_renderer<mapnik::image_rgba8> ren(m,buf);
ren.apply();
} catch (std::exception const& ex) {
REQUIRE(std::string(ex.what()) == std::string("Unable to find specified font face 'DejaVu Sans Book' in font set: 'fontset'"));
}
}
}
#include "catch.hpp"
#include <mapnik/map.hpp>
#include <mapnik/feature_type_style.hpp>
#include <mapnik/rule.hpp>
TEST_CASE("map")
{
SECTION("map resize")
{
mapnik::Map map(256, 256);
CHECK(map.width() == 256);
CHECK(map.height() == 256);
map.resize(0, 0);
CHECK(map.width() == 256);
CHECK(map.height() == 256);
map.resize(0, 1);
CHECK(map.width() == 256);
CHECK(map.height() == 256);
map.resize(1, 0);
CHECK(map.width() == 256);
CHECK(map.height() == 256);
map.resize(1, 1);
//------------------------------------------------------------------------------
void TileRenderer::RenderTile(std::string tile_uri, mapnik::Map m, int x, int y, int zoom, GoogleProjection tileproj, mapnik::projection prj, bool verbose, bool overrideTile, bool lockEnabled, std::string compositionLayerPath, std::string compositionMode, double compositionAlpha)
{
if(!overrideTile && FileSystem::FileExists(tile_uri))
{
return;
}
else
{
// Calculate pixel positions of bottom-left & top-right
ituple p0(x * 256, (y + 1) * 256);
ituple p1((x + 1) * 256, y * 256);
// Convert to LatLong (EPSG:4326)
dtuple l0 = tileproj.pixel2GeoCoord(p0, zoom);
dtuple l1 = tileproj.pixel2GeoCoord(p1, zoom);
// Convert to map projection (e.g. mercator co-ords EPSG:900913)
dtuple c0(l0.a,l0.b);
dtuple c1(l1.a,l1.b);
prj.forward(c0.a, c0.b);
prj.forward(c1.a, c1.b);
// Bounding box for the tile
#ifndef MAPNIK_2
mapnik::Envelope<double> bbox = mapnik::Envelope<double>(c0.a,c0.b,c1.a,c1.b);
m.resize(256,256);
m.zoomToBox(bbox);
#else
mapnik::box2d<double> bbox(c0.a,c0.b,c1.a,c1.b);
m.resize(256,256);
m.zoom_to_box(bbox);
#endif
m.set_buffer_size(128);
// Render image with default Agg renderer
#ifndef MAPNIK_2
mapnik::Image32 buf(m.getWidth(),m.getHeight());
mapnik::agg_renderer<mapnik::Image32> ren(m,buf);
#else
mapnik::image_32 buf(m.width(), m.height());
mapnik::agg_renderer<mapnik::image_32> ren(m,buf);
#endif
ren.apply();
if(lockEnabled)
{
int lockhandle = FileSystem::Lock(tile_uri);
#ifndef MAPNIK_2
Compose(compositionLayerPath, compositionMode, compositionAlpha, m.getWidth(),m.getHeight(),&buf, zoom, x,y);
mapnik::save_to_file<mapnik::ImageData32>(buf.data(),tile_uri,"png");
#else
Compose(compositionLayerPath, compositionMode, compositionAlpha, m.width(),m.height(),&buf, zoom, x,y);
mapnik::save_to_file<mapnik::image_data_32>(buf.data(),tile_uri,"png");
#endif
FileSystem::Unlock(tile_uri, lockhandle);
}
else
{
#ifndef MAPNIK_2
Compose(compositionLayerPath, compositionMode, compositionAlpha, m.getWidth(),m.getHeight(),&buf, zoom, x,y);
mapnik::save_to_file<mapnik::ImageData32>(buf.data(),tile_uri,"png");
#else
Compose(compositionLayerPath, compositionMode, compositionAlpha, m.width(),m.height(),&buf, zoom, x,y);
mapnik::save_to_file<mapnik::image_data_32>(buf.data(),tile_uri,"png");
#endif
}
}
}
void render_cairo(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
{
#ifdef HAVE_CAIRO
mapnik::cairo_surface_ptr image_surface(cairo_image_surface_create(CAIRO_FORMAT_ARGB32,map.width(),map.height()),
mapnik::cairo_surface_closer());
mapnik::cairo_renderer<mapnik::cairo_surface_ptr> renderer(map, image_surface, scaling_factor);
{
mapnik::auto_cpu_timer t(std::clog, "rendering took: ");
renderer.apply();
}
image_32 buf(image_surface);
QImage image((uchar*)buf.raw_data(),buf.width(),buf.height(),QImage::Format_ARGB32);
pix = QPixmap::fromImage(image.rgbSwapped());
#endif
}
#include <streambuf>
TEST_CASE( "pbf vector tile input", "should be able to parse message and render point" ) {
typedef mapnik::vector_tile_impl::backend_pbf backend_type;
typedef mapnik::vector_tile_impl::processor<backend_type> renderer_type;
typedef vector_tile::Tile tile_type;
tile_type tile;
backend_type backend(tile,16);
unsigned tile_size = 256;
mapnik::box2d<double> bbox(-20037508.342789,-20037508.342789,20037508.342789,20037508.342789);
mapnik::Map map(tile_size,tile_size,"+init=epsg:3857");
mapnik::layer lyr("layer",map.srs());
lyr.set_datasource(testing::build_ds(0,0));
map.add_layer(lyr);
map.zoom_to_box(bbox);
mapnik::request m_req(map.width(),map.height(),map.get_current_extent());
renderer_type ren(backend,map,m_req);
ren.apply();
// serialize to message
std::string buffer;
CHECK(tile.SerializeToString(&buffer));
CHECK(151 == buffer.size());
// now create new objects
mapnik::Map map2(tile_size,tile_size,"+init=epsg:3857");
tile_type tile2;
CHECK(tile2.ParseFromString(buffer));
std::string key("");
CHECK(false == mapnik::vector_tile_impl::is_solid_extent(tile2,key));
CHECK("" == key);
CHECK(false == mapnik::vector_tile_impl::is_solid_extent(buffer,key));
CHECK("" == key);