1619 lines
53 KiB
C++
1619 lines
53 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// mapnik
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#include <mapnik/load_map.hpp>
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#include <mapnik/xml_tree.hpp>
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#include <mapnik/version.hpp>
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#include <mapnik/image_reader.hpp>
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#include <mapnik/image_compositing.hpp>
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#include <mapnik/color.hpp>
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#include <mapnik/color_factory.hpp>
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#include <mapnik/symbolizer.hpp>
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#include <mapnik/feature_type_style.hpp>
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#include <mapnik/layer.hpp>
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#include <mapnik/datasource_cache.hpp>
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#include <mapnik/font_engine_freetype.hpp>
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#include <mapnik/font_set.hpp>
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#include <mapnik/xml_loader.hpp>
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#include <mapnik/expression.hpp>
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#include <mapnik/parse_path.hpp>
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#include <mapnik/raster_colorizer.hpp>
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#include <mapnik/svg/svg_path_parser.hpp>
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#include <mapnik/metawriter_factory.hpp>
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#include <mapnik/text_placements/registry.hpp>
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#include <mapnik/text_placements/dummy.hpp>
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#include <mapnik/symbolizer.hpp>
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#include <mapnik/rule.hpp>
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#include <mapnik/config_error.hpp>
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#include <mapnik/util/dasharray_parser.hpp>
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// boost
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#include <boost/optional.hpp>
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#include <boost/algorithm/string.hpp>
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#include <boost/algorithm/string/trim.hpp>
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#include <boost/lexical_cast.hpp>
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#include <boost/tokenizer.hpp>
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/xml_parser.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/filesystem/operations.hpp>
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// agg
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#include "agg_trans_affine.h"
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// stl
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#include <iostream>
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#include <sstream>
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using boost::lexical_cast;
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using boost::bad_lexical_cast;
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using boost::tokenizer;
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using std::endl;
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namespace mapnik
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{
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using boost::optional;
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class map_parser : boost::noncopyable {
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public:
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map_parser(bool strict, std::string const& filename = "") :
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strict_(strict),
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filename_(filename),
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relative_to_xml_(true),
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font_manager_(font_engine_)
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{}
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void parse_map(Map & map, xml_node const& sty, std::string const& base_path);
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private:
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void parse_map_include(Map & map, xml_node const& include);
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void parse_style(Map & map, xml_node const& sty);
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void parse_layer(Map & map, xml_node const& lay);
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void parse_metawriter(Map & map, xml_node const& lay);
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void parse_metawriter_in_symbolizer(symbolizer_base &sym, xml_node const& pt);
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void parse_fontset(Map & map, xml_node const & fset);
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void parse_font(font_set & fset, xml_node const& f);
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void parse_rule(feature_type_style & style, xml_node const & r);
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void parse_point_symbolizer(rule & rule, xml_node const& sym);
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void parse_line_pattern_symbolizer(rule & rule, xml_node const& sym);
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void parse_polygon_pattern_symbolizer(rule & rule, xml_node const& sym);
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void parse_text_symbolizer(rule & rule, xml_node const& sym);
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void parse_shield_symbolizer(rule & rule, xml_node const& sym);
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void parse_line_symbolizer(rule & rule, xml_node const& sym);
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void parse_polygon_symbolizer(rule & rule, xml_node const& sym);
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void parse_compositing_symbolizer(rule & rule, xml_node const& sym);
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void parse_building_symbolizer(rule & rule, xml_node const& sym);
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void parse_raster_symbolizer(rule & rule, xml_node const& sym);
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void parse_markers_symbolizer(rule & rule, xml_node const& sym);
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void parse_raster_colorizer(raster_colorizer_ptr const& rc, xml_node const& node);
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void parse_stroke(stroke & strk, xml_node const & sym);
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void ensure_font_face(std::string const& face_name);
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void find_unused_nodes(xml_node const& root);
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void find_unused_nodes_recursive(xml_node const& node, std::stringstream &error_text);
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std::string ensure_relative_to_xml(boost::optional<std::string> opt_path);
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boost::optional<color> get_opt_color_attr(boost::property_tree::ptree const& node,
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std::string const& name);
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bool strict_;
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std::string filename_;
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bool relative_to_xml_;
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std::map<std::string,parameters> datasource_templates_;
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freetype_engine font_engine_;
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face_manager<freetype_engine> font_manager_;
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std::map<std::string,std::string> file_sources_;
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std::map<std::string,font_set> fontsets_;
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};
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#include <mapnik/internal/dump_xml.hpp>
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void load_map(Map & map, std::string const& filename, bool strict)
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{
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// TODO - use xml encoding?
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xml_tree tree("utf8");
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tree.set_filename(filename);
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read_xml(filename, tree.root());
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map_parser parser(strict, filename);
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parser.parse_map(map, tree.root(), "");
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#ifdef MAPNIK_DEBUG
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dump_xml(tree.root());
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#endif
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}
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void load_map_string(Map & map, std::string const& str, bool strict, std::string base_path)
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{
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// TODO - use xml encoding?
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xml_tree tree("utf8");
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if (!base_path.empty())
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read_xml_string(str, tree.root(), base_path); // accept base_path passed into function
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else
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read_xml_string(str, tree.root(), map.base_path()); // default to map base_path
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map_parser parser(strict, base_path);
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parser.parse_map(map, tree.root(), base_path);
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}
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void map_parser::parse_map(Map & map, xml_node const& pt, std::string const& base_path)
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{
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try
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{
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xml_node const& map_node = pt.get_child("Map");
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try
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{
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// Check if relative paths should be interpreted as relative to/from XML location
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// Default is true, and map_parser::ensure_relative_to_xml will be called to modify path
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optional<boolean> paths_from_xml = map_node.get_opt_attr<boolean>("paths-from-xml");
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if (paths_from_xml)
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{
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relative_to_xml_ = *paths_from_xml;
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}
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optional<std::string> base_path_from_xml = map_node.get_opt_attr<std::string>("base");
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if (!base_path.empty())
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{
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map.set_base_path(base_path);
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}
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else if (base_path_from_xml)
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{
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map.set_base_path(*base_path_from_xml);
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}
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else
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{
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boost::filesystem::path xml_path(filename_);
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// TODO - should we make this absolute?
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#if (BOOST_FILESYSTEM_VERSION == 3)
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std::string base = xml_path.parent_path().string();
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#else // v2
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std::string base = xml_path.branch_path().string();
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#endif
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map.set_base_path(base);
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}
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optional<color> bgcolor = map_node.get_opt_attr<color>("background-color");
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if (bgcolor)
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{
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map.set_background(*bgcolor);
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}
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optional<std::string> image_filename = map_node.get_opt_attr<std::string>("background-image");
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if (image_filename)
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{
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map.set_background_image(ensure_relative_to_xml(image_filename));
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}
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map.set_srs(map_node.get_attr("srs", map.srs()));
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optional<unsigned> buffer_size = map_node.get_opt_attr<unsigned>("buffer-size");
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if (buffer_size)
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{
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map.set_buffer_size(*buffer_size);
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}
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optional<std::string> maximum_extent = map_node.get_opt_attr<std::string>("maximum-extent");
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if (maximum_extent)
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{
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box2d<double> box;
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if (box.from_string(*maximum_extent))
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{
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map.set_maximum_extent(box);
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}
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else
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{
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std::ostringstream s_err;
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s_err << "failed to parse 'maximum-extent'";
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if (strict_)
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throw config_error(s_err.str());
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else
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std::clog << "### WARNING: " << s_err.str() << std::endl;
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}
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}
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optional<std::string> font_directory = map_node.get_opt_attr<std::string>("font-directory");
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if (font_directory)
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{
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if (!freetype_engine::register_fonts(ensure_relative_to_xml(font_directory), false))
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{
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if (strict_)
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{
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throw config_error(std::string("Failed to load fonts from: ") + *font_directory);
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}
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}
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}
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optional<std::string> min_version_string = map_node.get_opt_attr<std::string>("minimum-version");
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if (min_version_string)
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{
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boost::char_separator<char> sep(".");
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boost::tokenizer<boost::char_separator<char> > tokens(*min_version_string, sep);
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unsigned i = 0;
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bool success = false;
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int n[3];
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for (boost::tokenizer<boost::char_separator<char> >::iterator beg = tokens.begin();
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beg != tokens.end(); ++beg)
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{
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try
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{
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n[i] = boost::lexical_cast<int>(boost::trim_copy(*beg));
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}
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catch (boost::bad_lexical_cast & ex)
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{
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std::clog << *beg << " : " << ex.what() << "\n";
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break;
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}
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if (i==2)
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{
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success = true;
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break;
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}
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++i;
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}
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if (success)
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{
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int min_version = (n[0] * 100000) + (n[1] * 100) + (n[2]);
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if (min_version > MAPNIK_VERSION)
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{
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throw config_error(std::string("This map uses features only present in Mapnik version ") + *min_version_string + " and newer");
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}
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}
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}
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}
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catch (const config_error & ex)
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{
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ex.append_context(map_node);
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throw;
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}
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parse_map_include(map, map_node);
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}
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catch (node_not_found const&)
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{
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throw config_error("Not a map file. Node 'Map' not found.");
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}
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find_unused_nodes(pt);
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}
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void map_parser::parse_map_include(Map & map, xml_node const& include)
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{
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try
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{
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xml_node::const_iterator itr = include.begin();
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xml_node::const_iterator end = include.end();
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for (; itr != end; ++itr)
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{
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if (itr->is_text()) continue;
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if (itr->is("Include"))
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{
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parse_map_include(map, *itr);
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}
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else if (itr->is("Style"))
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{
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parse_style(map, *itr);
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}
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else if (itr->is("Layer"))
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{
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parse_layer(map, *itr);
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}
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else if (itr->is("FontSet"))
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{
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parse_fontset(map, *itr);
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}
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else if (itr->is("MetaWriter"))
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{
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parse_metawriter(map, *itr);
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}
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else if (itr->is("FileSource"))
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{
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std::string name = itr->get_attr<std::string>("name");
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std::string value = itr->get_text();
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file_sources_[name] = value;
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}
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else if (itr->is("Datasource"))
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{
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std::string name = itr->get_attr("name", std::string("Unnamed"));
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parameters params;
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xml_node::const_iterator paramIter = itr->begin();
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xml_node::const_iterator endParam = itr->end();
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for (; paramIter != endParam; ++paramIter)
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{
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if (paramIter->is("Parameter"))
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{
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std::string name = paramIter->get_attr<std::string>("name");
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std::string value = paramIter->get_text();
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params[name] = value;
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}
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}
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datasource_templates_[name] = params;
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}
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else if (itr->is("Parameters"))
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{
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std::string name = itr->get_attr("name", std::string("Unnamed"));
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parameters & params = map.get_extra_parameters();
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xml_node::const_iterator paramIter = itr->begin();
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xml_node::const_iterator endParam = itr->end();
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for (; paramIter != endParam; ++paramIter)
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{
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if (paramIter->is("Parameter"))
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{
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std::string name = paramIter->get_attr<std::string>("name");
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bool is_string = true;
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boost::optional<std::string> type = paramIter->get_opt_attr<std::string>("type");
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if (type)
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{
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if (*type == "int")
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{
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is_string = false;
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int value = paramIter->get_value<int>();
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params[name] = value;
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}
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else if (*type == "float")
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{
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is_string = false;
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double value = paramIter->get_value<double>();
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params[name] = value;
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}
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}
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if (is_string)
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{
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std::string value = paramIter->get_text();
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params[name] = value;
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}
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}
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}
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}
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}
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} catch (const config_error & ex) {
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ex.append_context(include);
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throw;
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}
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map.init_metawriters();
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}
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void map_parser::parse_style(Map & map, xml_node const& sty)
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{
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std::string name("<missing name>");
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try
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{
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name = sty.get_attr<std::string>("name");
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feature_type_style style;
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filter_mode_e filter_mode = sty.get_attr<filter_mode_e>("filter-mode", FILTER_ALL);
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style.set_filter_mode(filter_mode);
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// compositing
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optional<std::string> comp_op_name = sty.get_opt_attr<std::string>("comp-op");
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if (comp_op_name)
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{
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composite_mode_e comp_op = comp_op_from_string(*comp_op_name);
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style.set_comp_op(comp_op);
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}
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// blur-x
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optional<unsigned> blur_x = sty.get_opt_attr<unsigned>("blur-radius-x");
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if (blur_x)
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{
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style.set_blur_radius_x(*blur_x);
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}
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// blur-y
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optional<unsigned> blur_y = sty.get_opt_attr<unsigned>("blur-radius-y");
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if (blur_y)
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{
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style.set_blur_radius_y(*blur_y);
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}
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xml_node::const_iterator ruleIter = sty.begin();
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xml_node::const_iterator endRule = sty.end();
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for (; ruleIter!=endRule; ++ruleIter)
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{
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if (ruleIter->is("Rule"))
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{
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parse_rule(style, *ruleIter);
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}
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}
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map.insert_style(name, style);
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} catch (const config_error & ex) {
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ex.append_context(std::string("in style '") + name + "'", sty);
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throw;
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}
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}
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void map_parser::parse_metawriter(Map & map, xml_node const& pt)
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{
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std::string name("<missing name>");
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metawriter_ptr writer;
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try
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{
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name = pt.get_attr<std::string>("name");
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writer = metawriter_create(pt);
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map.insert_metawriter(name, writer);
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} catch (const config_error & ex) {
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ex.append_context(std::string("in meta writer '") + name + "'", pt);
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}
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}
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void map_parser::parse_fontset(Map & map, xml_node const& fset)
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{
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std::string name("<missing name>");
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try
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{
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name = fset.get_attr<std::string>("name");
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font_set fontset(name);
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xml_node::const_iterator itr = fset.begin();
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xml_node::const_iterator end = fset.end();
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for (; itr != end; ++itr)
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{
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if (itr->is("Font"))
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{
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parse_font(fontset, *itr);
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}
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}
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map.insert_fontset(name, fontset);
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// XXX Hack because map object isn't accessible by text_symbolizer
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// when it's parsed
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fontsets_.insert(pair<std::string, font_set>(name, fontset));
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} catch (const config_error & ex) {
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ex.append_context(std::string("in FontSet '") + name + "'", fset);
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throw;
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}
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}
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void map_parser::parse_font(font_set &fset, xml_node const& f)
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{
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optional<std::string> face_name = f.get_opt_attr<std::string>("face-name");
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if (face_name)
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{
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if (strict_)
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{
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ensure_font_face(*face_name);
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}
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fset.add_face_name(*face_name);
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}
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else
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{
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throw config_error("Must have 'face-name' set", f);
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_layer(Map & map, xml_node const& lay)
|
|
{
|
|
std::string name;
|
|
try
|
|
{
|
|
name = lay.get_attr("name", std::string("Unnamed"));
|
|
|
|
// XXX if no projection is given inherit from map? [DS]
|
|
std::string srs = lay.get_attr("srs", map.srs());
|
|
|
|
layer lyr(name, srs);
|
|
|
|
optional<boolean> status = lay.get_opt_attr<boolean>("status");
|
|
if (status)
|
|
{
|
|
lyr.set_active(* status);
|
|
}
|
|
|
|
optional<double> min_zoom = lay.get_opt_attr<double>("minzoom");
|
|
if (min_zoom)
|
|
{
|
|
lyr.set_min_zoom(* min_zoom);
|
|
}
|
|
|
|
|
|
optional<double> max_zoom = lay.get_opt_attr<double>("maxzoom");
|
|
if (max_zoom)
|
|
{
|
|
lyr.set_max_zoom(* max_zoom);
|
|
}
|
|
|
|
optional<boolean> queryable = lay.get_opt_attr<boolean>("queryable");
|
|
if (queryable)
|
|
{
|
|
lyr.set_queryable(* queryable);
|
|
}
|
|
|
|
optional<boolean> clear_cache =
|
|
lay.get_opt_attr<boolean>("clear-label-cache");
|
|
if (clear_cache)
|
|
{
|
|
lyr.set_clear_label_cache(* clear_cache);
|
|
}
|
|
|
|
optional<boolean> cache_features =
|
|
lay.get_opt_attr<boolean>("cache-features");
|
|
if (cache_features)
|
|
{
|
|
lyr.set_cache_features(* cache_features);
|
|
}
|
|
|
|
optional<std::string> group_by =
|
|
lay.get_opt_attr<std::string>("group-by");
|
|
if (group_by)
|
|
{
|
|
lyr.set_group_by(* group_by);
|
|
}
|
|
|
|
xml_node::const_iterator child = lay.begin();
|
|
xml_node::const_iterator end = lay.end();
|
|
|
|
for(; child != end; ++child)
|
|
{
|
|
|
|
if (child->is("StyleName"))
|
|
{
|
|
std::string style_name = child->get_text();
|
|
if (style_name.empty())
|
|
{
|
|
std::ostringstream ss;
|
|
ss << "StyleName is empty in Layer: '" << lyr.name() << "'";
|
|
if (strict_)
|
|
throw config_error(ss.str());
|
|
else
|
|
std::clog << "### WARNING: " << ss.str() << std::endl;
|
|
}
|
|
else
|
|
{
|
|
lyr.add_style(style_name);
|
|
}
|
|
}
|
|
else if (child->is("Datasource"))
|
|
{
|
|
parameters params;
|
|
optional<std::string> base = child->get_opt_attr<std::string>("base");
|
|
if(base)
|
|
{
|
|
std::map<std::string,parameters>::const_iterator base_itr = datasource_templates_.find(*base);
|
|
if (base_itr!=datasource_templates_.end())
|
|
params = base_itr->second;
|
|
}
|
|
|
|
xml_node::const_iterator paramIter = child->begin();
|
|
xml_node::const_iterator endParam = child->end();
|
|
for (; paramIter != endParam; ++paramIter)
|
|
{
|
|
if (paramIter->is("Parameter"))
|
|
{
|
|
std::string name = paramIter->get_attr<std::string>("name");
|
|
std::string value = paramIter->get_text();
|
|
params[name] = value;
|
|
}
|
|
}
|
|
|
|
boost::optional<std::string> base_param = params.get<std::string>("base");
|
|
boost::optional<std::string> file_param = params.get<std::string>("file");
|
|
|
|
if (base_param){
|
|
params["base"] = ensure_relative_to_xml(base_param);
|
|
}
|
|
|
|
else if (file_param){
|
|
params["file"] = ensure_relative_to_xml(file_param);
|
|
}
|
|
|
|
//now we are ready to create datasource
|
|
try
|
|
{
|
|
boost::shared_ptr<datasource> ds =
|
|
datasource_cache::instance()->create(params);
|
|
lyr.set_datasource(ds);
|
|
}
|
|
|
|
catch (const std::exception & ex)
|
|
{
|
|
throw config_error(ex.what());
|
|
}
|
|
|
|
catch (...)
|
|
{
|
|
throw config_error("Unknown exception occured attempting to create datasoure for layer '" + lyr.name() + "'");
|
|
}
|
|
}
|
|
}
|
|
map.addLayer(lyr);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
if (!name.empty())
|
|
{
|
|
ex.append_context(std::string(" encountered during parsing of layer '") + name + "'", lay);
|
|
}
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_rule(feature_type_style & style, xml_node const& r)
|
|
{
|
|
std::string name;
|
|
try
|
|
{
|
|
name = r.get_attr("name", std::string());
|
|
rule rule(name);
|
|
|
|
xml_node const* child = r.get_opt_child("Filter");
|
|
if (child)
|
|
{
|
|
rule.set_filter(child->get_value<expression_ptr>());
|
|
}
|
|
|
|
if (r.has_child("ElseFilter"))
|
|
{
|
|
rule.set_else(true);
|
|
}
|
|
|
|
if (r.has_child("AlsoFilter"))
|
|
{
|
|
rule.set_also(true);
|
|
}
|
|
|
|
child = r.get_opt_child("MinScaleDenominator");
|
|
if (child)
|
|
{
|
|
rule.set_min_scale(child->get_value<double>());
|
|
}
|
|
|
|
child = r.get_opt_child("MaxScaleDenominator");
|
|
if (child)
|
|
{
|
|
rule.set_max_scale(child->get_value<double>());
|
|
}
|
|
|
|
xml_node::const_iterator symIter = r.begin();
|
|
xml_node::const_iterator endSym = r.end();
|
|
|
|
for(;symIter != endSym; ++symIter)
|
|
{
|
|
|
|
if (symIter->is("PointSymbolizer"))
|
|
{
|
|
parse_point_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("LinePatternSymbolizer"))
|
|
{
|
|
parse_line_pattern_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("PolygonPatternSymbolizer"))
|
|
{
|
|
parse_polygon_pattern_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("CompositingSymbolizer"))
|
|
{
|
|
parse_compositing_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("TextSymbolizer"))
|
|
{
|
|
parse_text_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("ShieldSymbolizer"))
|
|
{
|
|
parse_shield_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("LineSymbolizer"))
|
|
{
|
|
parse_line_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("PolygonSymbolizer"))
|
|
{
|
|
parse_polygon_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("BuildingSymbolizer"))
|
|
{
|
|
parse_building_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("RasterSymbolizer"))
|
|
{
|
|
parse_raster_symbolizer(rule, *symIter);
|
|
}
|
|
else if (symIter->is("MarkersSymbolizer"))
|
|
{
|
|
parse_markers_symbolizer(rule, *symIter);
|
|
}
|
|
}
|
|
style.add_rule(rule);
|
|
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
if (!name.empty())
|
|
{
|
|
ex.append_context(std::string("in rule '") + name + "'", r);
|
|
}
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_metawriter_in_symbolizer(symbolizer_base &sym, xml_node const &pt)
|
|
{
|
|
optional<std::string> comp_op_name = pt.get_opt_attr<std::string>("comp-op");
|
|
if (comp_op_name)
|
|
{
|
|
composite_mode_e comp_op = comp_op_from_string(*comp_op_name);
|
|
sym.set_comp_op(comp_op);
|
|
}
|
|
|
|
optional<std::string> writer = pt.get_opt_attr<std::string>("meta-writer");
|
|
if (!writer) return;
|
|
optional<std::string> output = pt.get_opt_attr<std::string>("meta-output");
|
|
sym.add_metawriter(*writer, output);
|
|
|
|
|
|
|
|
}
|
|
|
|
void map_parser::parse_point_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
optional<std::string> file = sym.get_opt_attr<std::string>("file");
|
|
optional<std::string> base = sym.get_opt_attr<std::string>("base");
|
|
optional<boolean> allow_overlap = sym.get_opt_attr<boolean>("allow-overlap");
|
|
optional<boolean> ignore_placement = sym.get_opt_attr<boolean>("ignore-placement");
|
|
optional<float> opacity = sym.get_opt_attr<float>("opacity");
|
|
optional<std::string> transform_wkt = sym.get_opt_attr<std::string>("transform");
|
|
|
|
point_symbolizer symbol;
|
|
if (allow_overlap)
|
|
{
|
|
symbol.set_allow_overlap(* allow_overlap);
|
|
}
|
|
if (opacity)
|
|
{
|
|
symbol.set_opacity(* opacity);
|
|
}
|
|
if (ignore_placement)
|
|
{
|
|
symbol.set_ignore_placement(* ignore_placement);
|
|
}
|
|
point_placement_e placement =
|
|
sym.get_attr<point_placement_e>("placement", CENTROID_POINT_PLACEMENT);
|
|
symbol.set_point_placement(placement);
|
|
|
|
if (file)
|
|
{
|
|
try
|
|
{
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
*file = itr->second + "/" + *file;
|
|
}
|
|
}
|
|
|
|
*file = ensure_relative_to_xml(file);
|
|
|
|
symbol.set_filename(parse_path(*file));
|
|
|
|
if (transform_wkt)
|
|
{
|
|
agg::trans_affine tr;
|
|
if (!mapnik::svg::parse_transform((*transform_wkt).c_str(),tr))
|
|
{
|
|
std::stringstream ss;
|
|
ss << "Could not parse transform from '" << transform_wkt
|
|
<< "', expected string like: 'matrix(1, 0, 0, 1, 0, 0)'";
|
|
if (strict_)
|
|
throw config_error(ss.str()); // value_error here?
|
|
else
|
|
std::clog << "### WARNING: " << ss << endl;
|
|
}
|
|
boost::array<double,6> matrix;
|
|
tr.store_to(&matrix[0]);
|
|
symbol.set_transform(matrix);
|
|
}
|
|
}
|
|
catch (image_reader_exception const & ex)
|
|
{
|
|
std::string msg("Failed to load image file '" + * file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
std::clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
parse_metawriter_in_symbolizer(symbol, sym);
|
|
rule.append(symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in PointSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|
|
void map_parser::parse_markers_symbolizer(rule & rule, xml_node const& sym)
|
|
{
|
|
try
|
|
{
|
|
std::string filename("");
|
|
optional<std::string> file = sym.get_opt_attr<std::string>("file");
|
|
optional<std::string> base = sym.get_opt_attr<std::string>("base");
|
|
optional<std::string> transform_wkt = sym.get_opt_attr<std::string>("transform");
|
|
|
|
if (file)
|
|
{
|
|
try
|
|
{
|
|
if (base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
*file = itr->second + "/" + *file;
|
|
}
|
|
}
|
|
|
|
filename = ensure_relative_to_xml(file);
|
|
}
|
|
catch (...)
|
|
{
|
|
std::string msg("Failed to load marker file '" + *file + "'!");
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
std::clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
markers_symbolizer symbol(parse_path(filename));
|
|
optional<float> opacity = sym.get_opt_attr<float>("opacity");
|
|
if (opacity) symbol.set_opacity(*opacity);
|
|
|
|
if (transform_wkt)
|
|
{
|
|
agg::trans_affine tr;
|
|
if (!mapnik::svg::parse_transform((*transform_wkt).c_str(),tr))
|
|
{
|
|
std::stringstream ss;
|
|
ss << "Could not parse transform from '" << transform_wkt
|
|
<< "', expected string like: 'matrix(1, 0, 0, 1, 0, 0)'";
|
|
if (strict_)
|
|
throw config_error(ss.str()); // value_error here?
|
|
else
|
|
std::clog << "### WARNING: " << ss << endl;
|
|
}
|
|
boost::array<double,6> matrix;
|
|
tr.store_to(&matrix[0]);
|
|
symbol.set_transform(matrix);
|
|
}
|
|
|
|
optional<color> c = sym.get_opt_attr<color>("fill");
|
|
if (c) symbol.set_fill(*c);
|
|
optional<double> spacing = sym.get_opt_attr<double>("spacing");
|
|
if (spacing) symbol.set_spacing(*spacing);
|
|
optional<double> max_error = sym.get_opt_attr<double>("max-error");
|
|
if (max_error) symbol.set_max_error(*max_error);
|
|
optional<boolean> allow_overlap = sym.get_opt_attr<boolean>("allow-overlap");
|
|
optional<boolean> ignore_placement = sym.get_opt_attr<boolean>("ignore-placement");
|
|
if (allow_overlap) symbol.set_allow_overlap(*allow_overlap);
|
|
if (ignore_placement) symbol.set_ignore_placement(*ignore_placement);
|
|
|
|
optional<double> w = sym.get_opt_attr<double>("width");
|
|
optional<double> h = sym.get_opt_attr<double>("height");
|
|
if (w && h)
|
|
{
|
|
symbol.set_width(*w);
|
|
symbol.set_height(*h);
|
|
}
|
|
else if (w)
|
|
{
|
|
symbol.set_width(*w);
|
|
symbol.set_height(*w);
|
|
|
|
}
|
|
else if (h)
|
|
{
|
|
symbol.set_width(*h);
|
|
symbol.set_height(*h);
|
|
}
|
|
|
|
stroke strk;
|
|
parse_stroke(strk,sym);
|
|
symbol.set_stroke(strk);
|
|
|
|
marker_placement_e placement = sym.get_attr<marker_placement_e>("placement", MARKER_LINE_PLACEMENT);
|
|
symbol.set_marker_placement(placement);
|
|
|
|
marker_type_e dfl_marker_type = ARROW;
|
|
|
|
if (placement == MARKER_POINT_PLACEMENT)
|
|
dfl_marker_type = ELLIPSE;
|
|
|
|
marker_type_e marker_type = sym.get_attr<marker_type_e>("marker-type", dfl_marker_type);
|
|
symbol.set_marker_type(marker_type);
|
|
|
|
parse_metawriter_in_symbolizer(symbol, sym);
|
|
rule.append(symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in MarkersSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_line_pattern_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
std::string file = sym.get_attr<std::string>("file");
|
|
optional<std::string> base = sym.get_opt_attr<std::string>("base");
|
|
|
|
try
|
|
{
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
file = itr->second + "/" + file;
|
|
}
|
|
}
|
|
|
|
file = ensure_relative_to_xml(file);
|
|
|
|
line_pattern_symbolizer symbol(parse_path(file));
|
|
|
|
parse_metawriter_in_symbolizer(symbol, sym);
|
|
rule.append(symbol);
|
|
}
|
|
catch (image_reader_exception const & ex)
|
|
{
|
|
std::string msg("Failed to load image file '" + file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
std::clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in LinePatternSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_polygon_pattern_symbolizer(rule & rule,
|
|
xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
std::string file = sym.get_attr<std::string>("file");
|
|
optional<std::string> base = sym.get_opt_attr<std::string>("base");
|
|
|
|
try
|
|
{
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
file = itr->second + "/" + file;
|
|
}
|
|
}
|
|
|
|
file = ensure_relative_to_xml(file);
|
|
|
|
polygon_pattern_symbolizer symbol(parse_path(file));
|
|
|
|
// pattern alignment
|
|
pattern_alignment_e p_alignment = sym.get_attr<pattern_alignment_e>("alignment",LOCAL_ALIGNMENT);
|
|
symbol.set_alignment(p_alignment);
|
|
|
|
// gamma
|
|
optional<double> gamma = sym.get_opt_attr<double>("gamma");
|
|
if (gamma) symbol.set_gamma(*gamma);
|
|
|
|
// gamma method
|
|
optional<gamma_method_e> gamma_method = sym.get_opt_attr<gamma_method_e>("gamma-method");
|
|
if (gamma_method) symbol.set_gamma_method(*gamma_method);
|
|
|
|
parse_metawriter_in_symbolizer(symbol, sym);
|
|
rule.append(symbol);
|
|
}
|
|
catch (image_reader_exception const & ex)
|
|
{
|
|
std::string msg("Failed to load image file '" + file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
std::clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in PolygonPatternSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_text_symbolizer(rule & rule, xml_node const& sym)
|
|
{
|
|
try
|
|
{
|
|
text_placements_ptr placement_finder;
|
|
optional<std::string> placement_type = sym.get_opt_attr<std::string>("placement-type");
|
|
if (placement_type) {
|
|
placement_finder = placements::registry::instance()->from_xml(*placement_type, sym, fontsets_);
|
|
} else {
|
|
placement_finder = boost::make_shared<text_placements_dummy>();
|
|
placement_finder->defaults.from_xml(sym, fontsets_);
|
|
}
|
|
if (strict_ &&
|
|
!placement_finder->defaults.format.fontset.size())
|
|
{
|
|
ensure_font_face(placement_finder->defaults.format.face_name);
|
|
}
|
|
|
|
text_symbolizer text_symbol = text_symbolizer(placement_finder);
|
|
parse_metawriter_in_symbolizer(text_symbol, sym);
|
|
rule.append(text_symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in TextSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_shield_symbolizer(rule & rule, xml_node const& sym)
|
|
{
|
|
try
|
|
{
|
|
text_placements_ptr placement_finder;
|
|
optional<std::string> placement_type = sym.get_opt_attr<std::string>("placement-type");
|
|
if (placement_type) {
|
|
placement_finder = placements::registry::instance()->from_xml(*placement_type, sym, fontsets_);
|
|
} else {
|
|
placement_finder = boost::make_shared<text_placements_dummy>();
|
|
}
|
|
placement_finder->defaults.from_xml(sym, fontsets_);
|
|
if (strict_ &&
|
|
!placement_finder->defaults.format.fontset.size())
|
|
{
|
|
ensure_font_face(placement_finder->defaults.format.face_name);
|
|
}
|
|
|
|
shield_symbolizer shield_symbol = shield_symbolizer(placement_finder);
|
|
/* Symbolizer specific attributes. */
|
|
optional<std::string> transform_wkt = sym.get_opt_attr<std::string>("transform");
|
|
if (transform_wkt)
|
|
{
|
|
agg::trans_affine tr;
|
|
if (!mapnik::svg::parse_transform((*transform_wkt).c_str(),tr))
|
|
{
|
|
std::stringstream ss;
|
|
ss << "Could not parse transform from '" << transform_wkt << "', expected string like: 'matrix(1, 0, 0, 1, 0, 0)'";
|
|
if (strict_)
|
|
throw config_error(ss.str()); // value_error here?
|
|
else
|
|
std::clog << "### WARNING: " << ss << endl;
|
|
}
|
|
boost::array<double,6> matrix;
|
|
tr.store_to(&matrix[0]);
|
|
shield_symbol.set_transform(matrix);
|
|
}
|
|
// shield displacement
|
|
double shield_dx = sym.get_attr("shield-dx", 0.0);
|
|
double shield_dy = sym.get_attr("shield-dy", 0.0);
|
|
shield_symbol.set_shield_displacement(shield_dx,shield_dy);
|
|
|
|
// opacity
|
|
optional<double> opacity = sym.get_opt_attr<double>("opacity");
|
|
if (opacity)
|
|
{
|
|
shield_symbol.set_opacity(*opacity);
|
|
}
|
|
|
|
// text-opacity
|
|
// TODO: Could be problematic because it is named opacity in TextSymbolizer but opacity has a diffrent meaning here.
|
|
optional<double> text_opacity =
|
|
sym.get_opt_attr<double>("text-opacity");
|
|
if (text_opacity)
|
|
{
|
|
shield_symbol.set_text_opacity(* text_opacity);
|
|
}
|
|
|
|
// unlock_image
|
|
optional<boolean> unlock_image =
|
|
sym.get_opt_attr<boolean>("unlock-image");
|
|
if (unlock_image)
|
|
{
|
|
shield_symbol.set_unlock_image(* unlock_image);
|
|
}
|
|
|
|
parse_metawriter_in_symbolizer(shield_symbol, sym);
|
|
|
|
std::string image_file = sym.get_attr<std::string>("file");
|
|
optional<std::string> base = sym.get_opt_attr<std::string>("base");
|
|
|
|
try
|
|
{
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
image_file = itr->second + "/" + image_file;
|
|
}
|
|
}
|
|
|
|
image_file = ensure_relative_to_xml(image_file);
|
|
shield_symbol.set_filename(parse_path(image_file));
|
|
}
|
|
catch (image_reader_exception const & ex)
|
|
{
|
|
std::string msg("Failed to load image file '" + image_file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
std::clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
rule.append(shield_symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in ShieldSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_stroke(stroke & strk, xml_node const & sym)
|
|
{
|
|
// stroke color
|
|
optional<color> c = sym.get_opt_attr<color>("stroke");
|
|
if (c) strk.set_color(*c);
|
|
|
|
// stroke-width
|
|
optional<double> width = sym.get_opt_attr<double>("stroke-width");
|
|
if (width) strk.set_width(*width);
|
|
|
|
// stroke-opacity
|
|
optional<double> opacity = sym.get_opt_attr<double>("stroke-opacity");
|
|
if (opacity) strk.set_opacity(*opacity);
|
|
|
|
// stroke-linejoin
|
|
optional<line_join_e> line_join = sym.get_opt_attr<line_join_e>("stroke-linejoin");
|
|
if (line_join) strk.set_line_join(*line_join);
|
|
|
|
// stroke-linecap
|
|
optional<line_cap_e> line_cap = sym.get_opt_attr<line_cap_e>("stroke-linecap");
|
|
if (line_cap) strk.set_line_cap(*line_cap);
|
|
|
|
// stroke-gamma
|
|
optional<double> gamma = sym.get_opt_attr<double>("stroke-gamma");
|
|
if (gamma) strk.set_gamma(*gamma);
|
|
|
|
// stroke-gamma-method
|
|
optional<gamma_method_e> gamma_method = sym.get_opt_attr<gamma_method_e>("stroke-gamma-method");
|
|
if (gamma_method) strk.set_gamma_method(*gamma_method);
|
|
|
|
// stroke-dashoffset
|
|
optional<double> dash_offset = sym.get_opt_attr<double>("stroke-dashoffset");
|
|
if (dash_offset) strk.set_dash_offset(*dash_offset);
|
|
|
|
// stroke-dasharray
|
|
optional<std::string> str = sym.get_opt_attr<std::string>("stroke-dasharray");
|
|
if (str)
|
|
{
|
|
std::vector<double> dash_array;
|
|
if (util::parse_dasharray((*str).begin(),(*str).end(),dash_array))
|
|
{
|
|
if (!dash_array.empty())
|
|
{
|
|
size_t size = dash_array.size();
|
|
if (size % 2 == 1)
|
|
dash_array.insert(dash_array.end(),dash_array.begin(),dash_array.end());
|
|
|
|
std::vector<double>::const_iterator pos = dash_array.begin();
|
|
while (pos != dash_array.end())
|
|
{
|
|
if (*pos > 0.0 || *(pos+1) > 0.0) // avoid both dash and gap eq 0.0
|
|
strk.add_dash(*pos,*(pos + 1));
|
|
pos +=2;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw config_error(std::string("Failed to parse dasharray ") +
|
|
"'. Expected a " +
|
|
"list of floats or 'none' but got '" + (*str) + "'");
|
|
}
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_line_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
stroke strk;
|
|
parse_stroke(strk,sym);
|
|
line_symbolizer symbol = line_symbolizer(strk);
|
|
|
|
// rasterizer method
|
|
line_rasterizer_e rasterizer = sym.get_attr<line_rasterizer_e>("rasterizer", RASTERIZER_FULL);
|
|
//optional<line_rasterizer_e> rasterizer_method = sym.get_opt_attr<line_rasterizer_e>("full");
|
|
symbol.set_rasterizer(rasterizer);
|
|
// smooth value
|
|
optional<double> smooth = sym.get_opt_attr<double>("smooth");
|
|
if (smooth) symbol.set_smooth(*smooth);
|
|
// meta-writer
|
|
parse_metawriter_in_symbolizer(symbol, sym);
|
|
rule.append(symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in LineSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|
|
void map_parser::parse_polygon_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
polygon_symbolizer poly_sym;
|
|
// fill
|
|
optional<color> fill = sym.get_opt_attr<color>("fill");
|
|
if (fill) poly_sym.set_fill(*fill);
|
|
// fill-opacity
|
|
optional<double> opacity = sym.get_opt_attr<double>("fill-opacity");
|
|
if (opacity) poly_sym.set_opacity(*opacity);
|
|
// gamma
|
|
optional<double> gamma = sym.get_opt_attr<double>("gamma");
|
|
if (gamma) poly_sym.set_gamma(*gamma);
|
|
// gamma method
|
|
optional<gamma_method_e> gamma_method = sym.get_opt_attr<gamma_method_e>("gamma-method");
|
|
if (gamma_method) poly_sym.set_gamma_method(*gamma_method);
|
|
// smooth value
|
|
optional<double> smooth = sym.get_opt_attr<double>("smooth");
|
|
if (smooth) poly_sym.set_smooth(*smooth);
|
|
|
|
// to clip or not to clip value
|
|
//optional<bool> clip = sym.get_opt_attr<bool>("clip");
|
|
//if (clip) poly_sym.set_clip(*clip);
|
|
|
|
parse_metawriter_in_symbolizer(poly_sym, sym);
|
|
rule.append(poly_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in PolygonSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_compositing_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
compositing_symbolizer comp_sym;
|
|
// fill
|
|
optional<color> fill = sym.get_opt_attr<color>("fill");
|
|
if (fill) comp_sym.set_fill(*fill);
|
|
// fill-opacity
|
|
optional<double> opacity = sym.get_opt_attr<double>("fill-opacity");
|
|
if (opacity) comp_sym.set_opacity(*opacity);
|
|
// gamma
|
|
optional<double> gamma = sym.get_opt_attr<double>("gamma");
|
|
if (gamma) comp_sym.set_gamma(*gamma);
|
|
// gamma method
|
|
optional<gamma_method_e> gamma_method = sym.get_opt_attr<gamma_method_e>("gamma-method");
|
|
if (gamma_method) comp_sym.set_gamma_method(*gamma_method);
|
|
// smooth value
|
|
optional<double> smooth = sym.get_opt_attr<double>("smooth");
|
|
if (smooth) comp_sym.set_smooth(*smooth);
|
|
|
|
rule.append(comp_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in CompositingSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_building_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
building_symbolizer building_sym;
|
|
|
|
// fill
|
|
optional<color> fill = sym.get_opt_attr<color>("fill");
|
|
if (fill) building_sym.set_fill(*fill);
|
|
// fill-opacity
|
|
optional<double> opacity = sym.get_opt_attr<double>("fill-opacity");
|
|
if (opacity) building_sym.set_opacity(*opacity);
|
|
// height
|
|
optional<expression_ptr> height = sym.get_opt_attr<expression_ptr>("height");
|
|
if (height) building_sym.set_height(*height);
|
|
|
|
parse_metawriter_in_symbolizer(building_sym, sym);
|
|
rule.append(building_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in BuildingSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_raster_symbolizer(rule & rule, xml_node const & sym)
|
|
{
|
|
try
|
|
{
|
|
raster_symbolizer raster_sym;
|
|
|
|
// mode
|
|
optional<std::string> mode = sym.get_opt_attr<std::string>("mode");
|
|
if (mode) raster_sym.set_mode(*mode);
|
|
|
|
// scaling
|
|
optional<std::string> scaling = sym.get_opt_attr<std::string>("scaling");
|
|
if (scaling) raster_sym.set_scaling(*scaling);
|
|
|
|
// opacity
|
|
optional<double> opacity = sym.get_opt_attr<double>("opacity");
|
|
if (opacity) raster_sym.set_opacity(*opacity);
|
|
|
|
// filter factor
|
|
optional<double> filter_factor = sym.get_opt_attr<double>("filter-factor");
|
|
if (filter_factor) raster_sym.set_filter_factor(*filter_factor);
|
|
|
|
// mesh-size
|
|
optional<unsigned> mesh_size = sym.get_opt_attr<unsigned>("mesh-size");
|
|
if (mesh_size) raster_sym.set_mesh_size(*mesh_size);
|
|
|
|
|
|
xml_node::const_iterator cssIter = sym.begin();
|
|
xml_node::const_iterator endCss = sym.end();
|
|
|
|
for(; cssIter != endCss; ++cssIter)
|
|
{
|
|
if (cssIter->is("RasterColorizer"))
|
|
{
|
|
raster_colorizer_ptr colorizer = boost::make_shared<raster_colorizer>();
|
|
raster_sym.set_colorizer(colorizer);
|
|
parse_raster_colorizer(colorizer, *cssIter);
|
|
}
|
|
}
|
|
//Note: raster_symbolizer doesn't support metawriters
|
|
rule.append(raster_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in RasterSymbolizer", sym);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_raster_colorizer(raster_colorizer_ptr const& rc,
|
|
xml_node const& node)
|
|
{
|
|
try
|
|
{
|
|
// mode
|
|
colorizer_mode default_mode =
|
|
node.get_attr<colorizer_mode>("default-mode", COLORIZER_LINEAR);
|
|
|
|
if(default_mode == COLORIZER_INHERIT) {
|
|
throw config_error("RasterColorizer mode must not be INHERIT. ");
|
|
}
|
|
rc->set_default_mode(default_mode);
|
|
|
|
// default colour
|
|
optional<color> default_color = node.get_opt_attr<color>("default-color");
|
|
if (default_color)
|
|
{
|
|
rc->set_default_color(*default_color);
|
|
}
|
|
|
|
|
|
// epsilon
|
|
optional<float> eps = node.get_opt_attr<float>("epsilon");
|
|
if (eps)
|
|
{
|
|
if(*eps < 0) {
|
|
throw config_error("RasterColorizer epsilon must be > 0. ");
|
|
}
|
|
rc->set_epsilon(*eps);
|
|
}
|
|
|
|
|
|
xml_node::const_iterator stopIter = node.begin();
|
|
xml_node::const_iterator endStop = node.end();
|
|
float maximumValue = -std::numeric_limits<float>::max();
|
|
|
|
for(; stopIter != endStop; ++stopIter)
|
|
{
|
|
if (stopIter->is("stop"))
|
|
{
|
|
// colour is optional.
|
|
optional<color> stopcolor = stopIter->get_opt_attr<color>("color");
|
|
if (!stopcolor) {
|
|
*stopcolor = *default_color;
|
|
}
|
|
|
|
// mode default to INHERIT
|
|
colorizer_mode mode =
|
|
stopIter->get_attr<colorizer_mode>("mode", COLORIZER_INHERIT);
|
|
|
|
// value is required, and it must be bigger than the previous
|
|
optional<float> value =
|
|
stopIter->get_opt_attr<float>("value");
|
|
|
|
if(!value) {
|
|
throw config_error("stop tag missing value");
|
|
}
|
|
|
|
if(value < maximumValue) {
|
|
throw config_error("stop tag values must be in ascending order");
|
|
}
|
|
maximumValue = *value;
|
|
|
|
optional<std::string> label =
|
|
stopIter->get_opt_attr<std::string>("label");
|
|
|
|
//append the stop
|
|
colorizer_stop tmpStop;
|
|
tmpStop.set_color(*stopcolor);
|
|
tmpStop.set_mode(mode);
|
|
tmpStop.set_value(*value);
|
|
if (label)
|
|
tmpStop.set_label(*label);
|
|
|
|
rc->add_stop(tmpStop);
|
|
}
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in RasterColorizer", node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::ensure_font_face(std::string const& face_name)
|
|
{
|
|
if (! font_manager_.get_face(face_name))
|
|
{
|
|
throw config_error("Failed to find font face '" +
|
|
face_name + "'");
|
|
}
|
|
}
|
|
|
|
std::string map_parser::ensure_relative_to_xml(boost::optional<std::string> opt_path)
|
|
{
|
|
if (relative_to_xml_)
|
|
{
|
|
boost::filesystem::path xml_path = filename_;
|
|
boost::filesystem::path rel_path = *opt_path;
|
|
if (!rel_path.has_root_path())
|
|
{
|
|
#if (BOOST_FILESYSTEM_VERSION == 3)
|
|
// TODO - normalize is now deprecated, use make_preferred?
|
|
boost::filesystem::path full = boost::filesystem::absolute(xml_path.parent_path()/rel_path);
|
|
#else // v2
|
|
boost::filesystem::path full = boost::filesystem::complete(xml_path.branch_path()/rel_path).normalize();
|
|
#endif
|
|
|
|
#ifdef MAPNIK_DEBUG
|
|
std::clog << "\nModifying relative paths to be relative to xml...\n";
|
|
std::clog << "original base path: " << *opt_path << "\n";
|
|
std::clog << "relative base path: " << full.string() << "\n";
|
|
#endif
|
|
return full.string();
|
|
}
|
|
}
|
|
return *opt_path;
|
|
}
|
|
|
|
void map_parser::find_unused_nodes(xml_node const& root)
|
|
{
|
|
std::stringstream error_message;
|
|
find_unused_nodes_recursive(root, error_message);
|
|
if (!error_message.str().empty())
|
|
{
|
|
throw config_error("The following nodes or attributes were not processed while parsing the xml file:" + error_message.str());
|
|
}
|
|
}
|
|
|
|
void map_parser::find_unused_nodes_recursive(xml_node const& node, std::stringstream &error_message)
|
|
{
|
|
if (!node.processed())
|
|
{
|
|
if (node.is_text()) {
|
|
error_message << "\n* text '" << node.text() << "'";
|
|
} else {
|
|
error_message << "\n* node '" << node.name() << "' in line " << node.line();
|
|
}
|
|
return; //All attributes and children are automatically unprocessed, too.
|
|
}
|
|
xml_node::attribute_map const& attr = node.get_attributes();
|
|
xml_node::attribute_map::const_iterator aitr = attr.begin();
|
|
xml_node::attribute_map::const_iterator aend = attr.end();
|
|
for (;aitr!=aend; aitr++)
|
|
{
|
|
if (!aitr->second.processed)
|
|
{
|
|
error_message << "\n* attribute '" << aitr->first <<
|
|
"' with value '" << aitr->second.value <<
|
|
"' in line " << node.line();
|
|
}
|
|
}
|
|
xml_node::const_iterator itr = node.begin();
|
|
xml_node::const_iterator end = node.end();
|
|
for (; itr!=end; itr++)
|
|
{
|
|
find_unused_nodes_recursive(*itr, error_message);
|
|
}
|
|
}
|
|
|
|
} // end of namespace mapnik
|