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mapnik-render

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New options :
 * --bbox -- bounding box to zoom in (expected in Map's SRS unless "--geographic" is used)
 * --geographic,-g  -- bounding box is in WGS 84 lon/lat
 * --plugins-dir -- directory contaning input plugins (default:./plugins/input)
 * --fonts-dir -- directory containing fonts (default: relative to plugins-dir or ./fonts if no plugins-dir specified)
This commit is contained in:
Artem Pavlenko 2023-02-24 11:11:16 +00:00
parent 8efaa959f0
commit 5e980ec853
1 changed files with 106 additions and 7 deletions
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113
utils/mapnik-render/mapnik-render.cpp
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@ -8,15 +8,32 @@
#include <mapnik/unicode.hpp>
#include <mapnik/datasource_cache.hpp>
#include <mapnik/font_engine_freetype.hpp>
#include <mapnik/proj_transform.hpp>
#include <mapnik/warning.hpp>
MAPNIK_DISABLE_WARNING_PUSH
#include <mapnik/warning_ignore.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/program_options.hpp>
#include <boost/spirit/home/x3.hpp>
#include <boost/fusion/adapted/struct.hpp>
MAPNIK_DISABLE_WARNING_POP
#include <string>
#if __cplusplus >= 201703L
#include <filesystem>
namespace fs = std::filesystem;
#else
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
#endif
BOOST_FUSION_ADAPT_STRUCT(mapnik::box2d<double>,
(double, minx_)
(double, miny_)
(double, maxx_)
(double, maxy_))
int main(int argc, char** argv)
{
@ -35,7 +52,6 @@ int main(int argc, char** argv)
logger.set_severity(mapnik::logger::error);
int map_width = 600;
int map_height = 400;
try
{
po::options_description desc("mapnik-render utility");
@ -51,7 +67,10 @@ int main(int argc, char** argv)
("map-width",po::value<int>(),"map width in pixels")
("map-height",po::value<int>(),"map height in pixels")
("variables","make map parameters available as render-time variables")
;
("bbox", po::value<std::string>(), "bounding box e.g <minx,miny,maxx,maxy> in Map's SRS")
("geographic,g","bounding box is in WGS 84 lon/lat")
("plugins-dir", po::value<std::string>(), "directory containing input plug-ins (default: ./plugins/input)")
("fonts-dir", po::value<std::string>(), "directory containing fonts (default: relative to <plugins-dir> or ./fonts if no <plugins-dir> specified)");
// clang-format on
po::positional_options_description p;
p.add("xml", 1);
@ -65,7 +84,6 @@ int main(int argc, char** argv)
std::clog << "version " << MAPNIK_VERSION_STRING << std::endl;
return 1;
}
if (vm.count("help"))
{
std::clog << desc << std::endl;
@ -122,11 +140,92 @@ int main(int argc, char** argv)
map_height = vm["map-height"].as<int>();
}
mapnik::datasource_cache::instance().register_datasources("./plugins/input/");
mapnik::freetype_engine::register_fonts("./fonts", true);
if (vm.count("plugins-dir"))
{
mapnik::datasource_cache::instance().register_datasources(vm["plugins-dir"].as<std::string>());
if (vm.count("fonts-dir"))
{
mapnik::freetype_engine::register_fonts(vm["fonts-dir"].as<std::string>(), true);
}
else
{
// relative to plugins-dir
try
{
fs::path p(vm["plugins-dir"].as<std::string>());
p = p.parent_path() / "fonts";
mapnik::freetype_engine::register_fonts(p, true);
}
catch (...) {}
}
}
else
{
mapnik::datasource_cache::instance().register_datasources("./plugins/input");
mapnik::freetype_engine::register_fonts("./fonts", true);
}
if (verbose)
{
auto plugin_names = mapnik::datasource_cache::instance().plugin_names();
if (plugin_names.empty())
{
std::cerr << "*WARNING*: no datasource plug-ings registered" << std::endl;
}
else
{
std::cerr << "Registered datasource plug-ins:";
for (auto const& name : plugin_names)
{
std::cerr << name << " ";
}
std::cerr << std::endl;
}
}
mapnik::Map map(map_width, map_height);
mapnik::load_map(map, xml_file, true);
map.zoom_all();
if (vm.count("bbox"))
{
namespace x3 = boost::spirit::x3;
mapnik::box2d<double> bbox;
std::string str = vm["bbox"].as<std::string>();
auto start = str.begin();
auto end = str.end();
if (!x3::phrase_parse(start, end,
x3::double_ >> -x3::lit(',') >> x3::double_ >> -x3::lit(',')
>> x3::double_ >> -x3::lit(',') >> x3::double_,
x3::space,
bbox))
{
std::cerr << "Failed to parse BBOX: " << str << std::endl;
return -1;
}
if (!bbox.valid())
{
std::cerr << "Invalid BBOX: " << str << std::endl;
return -1;
}
if (vm.count("geographic"))
{
mapnik::projection source("epsg:4326");
mapnik::projection destination(map.srs());
mapnik::proj_transform tr(source, destination);
if (!tr.forward(bbox))
{
std::cerr << "Failed to project input BBOX into " << map.srs() << std::endl;
return -1;
}
}
std::cerr << "zoom to:" << bbox << std::endl;
map.zoom_to_box(bbox);
}
else
{
map.zoom_all();
}
mapnik::image_rgba8 im(map.width(), map.height());
mapnik::request req(map.width(), map.height(), map.get_current_extent());
req.set_buffer_size(map.buffer_size());