1732 lines
55 KiB
C++
1732 lines
55 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) 2010 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/version.hpp>
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#include <mapnik/image_reader.hpp>
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#include <mapnik/color.hpp>
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#include <mapnik/color_factory.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/ptree_helpers.hpp>
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#include <mapnik/libxml2_loader.hpp>
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#include <mapnik/filter_factory.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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// boost
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#include <boost/optional.hpp>
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#include <boost/algorithm/string.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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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 boost::property_tree::ptree;
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using std::cerr;
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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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void parse_map( Map & map, ptree const & sty);
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private:
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void parse_style( Map & map, ptree const & sty);
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void parse_layer( Map & map, ptree const & lay);
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void parse_fontset(Map & map, ptree const & fset);
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void parse_font(font_set & fset, ptree const & f);
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void parse_rule( feature_type_style & style, ptree const & r);
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void parse_point_symbolizer( rule_type & rule, ptree const & sym);
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void parse_line_pattern_symbolizer( rule_type & rule, ptree const & sym);
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void parse_polygon_pattern_symbolizer( rule_type & rule, ptree const & sym);
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void parse_text_symbolizer( rule_type & rule, ptree const & sym);
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void parse_shield_symbolizer( rule_type & rule, ptree const & sym);
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void parse_line_symbolizer( rule_type & rule, ptree const & sym);
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void parse_polygon_symbolizer( rule_type & rule, ptree const & sym);
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void parse_building_symbolizer( rule_type & rule, ptree const & sym );
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void parse_raster_symbolizer( rule_type & rule, ptree const & sym );
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void parse_markers_symbolizer( rule_type & rule, ptree const & sym );
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void parse_glyph_symbolizer( rule_type & rule, ptree const & sym );
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void parse_raster_colorizer(raster_colorizer_ptr const& rc, ptree const& node );
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void ensure_font_face( const std::string & face_name );
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std::string ensure_relative_to_xml( boost::optional<std::string> opt_path );
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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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void load_map(Map & map, std::string const& filename, bool strict)
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{
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ptree pt;
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#ifdef HAVE_LIBXML2
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read_xml2(filename, pt);
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#else
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try
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{
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read_xml(filename, pt);
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}
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catch (const boost::property_tree::xml_parser_error & ex)
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{
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throw config_error( ex.what() );
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}
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#endif
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map_parser parser( strict, filename);
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parser.parse_map(map, pt);
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}
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void load_map_string(Map & map, std::string const& str, bool strict, std::string const& base_url)
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{
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ptree pt;
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#ifdef HAVE_LIBXML2
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read_xml2_string(str, pt, base_url);
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#else
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try
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{
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std::istringstream s(str);
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read_xml(s,pt);
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}
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catch (const boost::property_tree::xml_parser_error & ex)
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{
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throw config_error( ex.what() ) ;
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}
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#endif
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map_parser parser( strict, base_url);
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parser.parse_map(map, pt);
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}
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void map_parser::parse_map( Map & map, ptree const & pt )
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{
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try
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{
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ptree const & map_node = pt.get_child("Map");
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try
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{
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optional<color> bgcolor = get_opt_attr<color>(map_node, "bgcolor");
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if (bgcolor) {
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map.set_background( * bgcolor );
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}
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map.set_srs( get_attr(map_node, "srs", map.srs() ));
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optional<unsigned> buffer_size = get_opt_attr<unsigned>(map_node,"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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// 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 = get_opt_attr<boolean>(map_node, "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> min_version_string = get_opt_attr<std::string>(map_node, "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("(in node Map)");
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throw;
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}
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ptree::const_iterator itr = map_node.begin();
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ptree::const_iterator end = map_node.end();
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for (; itr != end; ++itr)
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{
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ptree::value_type const& v = *itr;
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if (v.first == "Style")
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{
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parse_style( map, v.second );
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}
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else if (v.first == "Layer")
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{
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parse_layer(map, v.second );
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}
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else if (v.first == "FontSet")
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{
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parse_fontset(map, v.second);
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}
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else if (v.first == "FileSource")
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{
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std::string name = get_attr<string>( v.second, "name");
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std::string value = get_value<string>( v.second, "");
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file_sources_[name] = value;
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}
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else if (v.first == "Datasource")
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{
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std::string name = get_attr(v.second, "name", string("Unnamed"));
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parameters params;
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ptree::const_iterator paramIter = v.second.begin();
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ptree::const_iterator endParam = v.second.end();
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for (; paramIter != endParam; ++paramIter)
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{
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ptree const& param = paramIter->second;
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if (paramIter->first == "Parameter")
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{
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std::string name = get_attr<string>(param, "name");
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std::string value = get_value<string>( param,
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"datasource parameter");
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params[name] = value;
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}
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else if( paramIter->first != "<xmlattr>" &&
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paramIter->first != "<xmlcomment>" )
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{
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throw config_error(std::string("Unknown child node in ") +
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"'Datasource'. Expected 'Parameter' but got '" +
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paramIter->first + "'");
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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 (v.first != "<xmlcomment>" &&
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v.first != "<xmlattr>")
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{
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throw config_error(std::string("Unknown child node in 'Map'. ") +
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"Expected 'Style' or 'Layer' but got '" + v.first + "'");
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}
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}
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}
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catch (const boost::property_tree::ptree_bad_path &)
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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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}
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void map_parser::parse_style( Map & map, ptree const & sty )
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{
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string name("<missing name>");
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try
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{
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name = get_attr<string>(sty, "name");
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feature_type_style style;
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ptree::const_iterator ruleIter = sty.begin();
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ptree::const_iterator endRule = sty.end();
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for (; ruleIter!=endRule; ++ruleIter)
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{
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ptree::value_type const& rule_tag = *ruleIter;
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if (rule_tag.first == "Rule")
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{
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parse_rule( style, rule_tag.second );
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}
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else if (rule_tag.first != "<xmlcomment>" &&
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rule_tag.first != "<xmlattr>" )
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{
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throw config_error(std::string("Unknown child node in 'Style'. ") +
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"Expected 'Rule' but got '" + rule_tag.first + "'");
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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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if ( ! name.empty() ) {
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ex.append_context(string("in style '") + name + "' in map '" + filename_ + "')");
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}
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throw;
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}
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}
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void map_parser::parse_fontset( Map & map, ptree const & fset )
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{
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string name("<missing name>");
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try
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{
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name = get_attr<string>(fset, "name");
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font_set fontset(name);
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ptree::const_iterator itr = fset.begin();
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ptree::const_iterator end = fset.end();
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for (; itr != end; ++itr)
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{
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ptree::value_type const& font_tag = *itr;
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if (font_tag.first == "Font")
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{
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parse_font(fontset, font_tag.second);
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}
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else if (font_tag.first != "<xmlcomment>" &&
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font_tag.first != "<xmlattr>" )
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{
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throw config_error(std::string("Unknown child node in 'FontSet'. ") +
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"Expected 'Font' but got '" + font_tag.first + "'");
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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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if ( ! name.empty() ) {
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ex.append_context(string("in FontSet '") + name + "' in map '" + filename_ + "')");
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}
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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, ptree const & f)
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{
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std::string face_name = get_attr(f, "face_name", string());
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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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void map_parser::parse_layer( Map & map, ptree const & lay )
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{
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std::string name;
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try
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{
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name = get_attr(lay, "name", string("Unnamed"));
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// XXX if no projection is given inherit from map? [DS]
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std::string srs = get_attr(lay, "srs", map.srs());
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layer lyr(name, srs);
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optional<boolean> status = get_opt_attr<boolean>(lay, "status");
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if (status)
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{
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lyr.setActive( * status );
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}
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optional<std::string> title = get_opt_attr<string>(lay, "title");
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if (title)
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{
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lyr.set_title( * title );
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}
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optional<std::string> abstract = get_opt_attr<string>(lay, "abstract");
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if (abstract)
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{
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lyr.set_abstract( * abstract );
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}
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optional<double> minZoom = get_opt_attr<double>(lay, "minzoom");
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if (minZoom)
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{
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lyr.setMinZoom( * minZoom );
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}
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optional<double> maxZoom = get_opt_attr<double>(lay, "maxzoom");
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if (maxZoom)
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{
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lyr.setMaxZoom( * maxZoom );
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}
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optional<boolean> queryable = get_opt_attr<boolean>(lay, "queryable");
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if (queryable)
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{
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lyr.setQueryable( * queryable );
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}
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optional<boolean> clear_cache =
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get_opt_attr<boolean>(lay, "clear_label_cache");
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if (clear_cache)
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{
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lyr.set_clear_label_cache( * clear_cache );
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}
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ptree::const_iterator itr2 = lay.begin();
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ptree::const_iterator end2 = lay.end();
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for(; itr2 != end2; ++itr2)
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{
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ptree::value_type const& child = *itr2;
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if (child.first == "StyleName")
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{
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// TODO check references [DS]
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lyr.add_style(child.second.data());
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}
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else if (child.first == "Datasource")
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{
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parameters params;
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optional<std::string> base = get_opt_attr<std::string>( child.second, "base" );
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if( base )
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{
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std::map<std::string,parameters>::const_iterator base_itr = datasource_templates_.find(*base);
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if (base_itr!=datasource_templates_.end())
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params = base_itr->second;
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}
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ptree::const_iterator paramIter = child.second.begin();
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ptree::const_iterator endParam = child.second.end();
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for (; paramIter != endParam; ++paramIter)
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{
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ptree const& param = paramIter->second;
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if (paramIter->first == "Parameter")
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{
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std::string name = get_attr<string>(param, "name");
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std::string value = get_value<string>( param,
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"datasource parameter");
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params[name] = value;
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}
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else if( paramIter->first != "<xmlattr>" &&
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paramIter->first != "<xmlcomment>" )
|
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{
|
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throw config_error(std::string("Unknown child node in ") +
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"'Datasource'. Expected 'Parameter' but got '" +
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paramIter->first + "'");
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}
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}
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if ( relative_to_xml_ ) {
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boost::optional<std::string> base_param = params.get<std::string>("base");
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boost::optional<std::string> file_param = params.get<std::string>("file");
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if (base_param){
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params["base"] = ensure_relative_to_xml(base_param);
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}
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else if (file_param){
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params["file"] = ensure_relative_to_xml(file_param);
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}
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}
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#ifdef MAPNIK_DEBUG
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else {
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std::clog << "\nFound relative paths in xml, leaving unchanged...\n";
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}
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#endif
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|
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//now we are ready to create datasource
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try
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{
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boost::shared_ptr<datasource> ds =
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datasource_cache::instance()->create(params);
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lyr.set_datasource(ds);
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}
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|
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// catch problem at datasource registration
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catch (const mapnik::config_error & ex )
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{
|
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throw config_error( ex.what() );
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}
|
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|
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// catch problem at the datasource creation
|
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catch (const mapnik::datasource_exception & ex )
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{
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throw config_error( ex.what() );
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}
|
|
|
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catch (...)
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{
|
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//throw config_error("exception...");
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}
|
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}
|
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else if (child.first != "<xmlattr>" &&
|
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child.first != "<xmlcomment>")
|
|
{
|
|
throw config_error(std::string("Unknown child node in 'Layer'. ") +
|
|
"Expected 'StyleName' or 'Datasource' but got '" +
|
|
child.first + "'");
|
|
}
|
|
}
|
|
|
|
map.addLayer(lyr);
|
|
|
|
} catch (const config_error & ex) {
|
|
if ( ! name.empty() ) {
|
|
ex.append_context(std::string("(encountered during parsing of layer '") + name + "' in map '" + filename_ + "')");
|
|
}
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_rule( feature_type_style & style, ptree const & r )
|
|
{
|
|
std::string name;
|
|
try
|
|
{
|
|
name = get_attr( r, "name", string());
|
|
std::string title = get_attr( r, "title", string());
|
|
|
|
rule_type rule(name,title);
|
|
|
|
optional<std::string> filter_expr =
|
|
get_opt_child<string>( r, "Filter");
|
|
if (filter_expr)
|
|
{
|
|
// TODO - can we use encoding defined for XML document for filter expressions?
|
|
rule.set_filter(parse_expression(*filter_expr,"utf8"));
|
|
}
|
|
|
|
optional<std::string> else_filter =
|
|
get_opt_child<string>(r, "ElseFilter");
|
|
if (else_filter)
|
|
{
|
|
rule.set_else(true);
|
|
}
|
|
|
|
optional<double> min_scale =
|
|
get_opt_child<double>(r, "MinScaleDenominator");
|
|
if (min_scale)
|
|
{
|
|
rule.set_min_scale(*min_scale);
|
|
}
|
|
|
|
optional<double> max_scale =
|
|
get_opt_child<double>(r, "MaxScaleDenominator");
|
|
if (max_scale)
|
|
{
|
|
rule.set_max_scale(*max_scale);
|
|
}
|
|
|
|
ptree::const_iterator symIter = r.begin();
|
|
ptree::const_iterator endSym = r.end();
|
|
|
|
for( ;symIter != endSym; ++symIter)
|
|
{
|
|
ptree::value_type const& sym = *symIter;
|
|
|
|
if ( sym.first == "PointSymbolizer")
|
|
{
|
|
parse_point_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "LinePatternSymbolizer")
|
|
{
|
|
parse_line_pattern_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "PolygonPatternSymbolizer")
|
|
{
|
|
parse_polygon_pattern_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "TextSymbolizer")
|
|
{
|
|
parse_text_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "ShieldSymbolizer")
|
|
{
|
|
parse_shield_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "LineSymbolizer")
|
|
{
|
|
parse_line_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "PolygonSymbolizer")
|
|
{
|
|
parse_polygon_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "BuildingSymbolizer")
|
|
{
|
|
parse_building_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "RasterSymbolizer")
|
|
{
|
|
parse_raster_symbolizer( rule, sym.second );
|
|
}
|
|
else if ( sym.first == "MarkersSymbolizer")
|
|
{
|
|
parse_markers_symbolizer(rule, sym.second);
|
|
}
|
|
else if ( sym.first == "GlyphSymbolizer")
|
|
{
|
|
parse_glyph_symbolizer( rule, sym.second );
|
|
}
|
|
|
|
else if ( sym.first != "MinScaleDenominator" &&
|
|
sym.first != "MaxScaleDenominator" &&
|
|
sym.first != "Filter" &&
|
|
sym.first != "ElseFilter" &&
|
|
sym.first != "<xmlcomment>" &&
|
|
sym.first != "<xmlattr>" )
|
|
{
|
|
throw config_error(std::string("Unknown symbolizer '") +
|
|
sym.first + "'");
|
|
}
|
|
}
|
|
|
|
style.add_rule(rule);
|
|
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
if ( ! name.empty() )
|
|
{
|
|
ex.append_context(string("in rule '") + name + "' in map '" + filename_ + "')");
|
|
}
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_point_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
optional<std::string> file = get_opt_attr<string>(sym, "file");
|
|
optional<std::string> base = get_opt_attr<string>(sym, "base");
|
|
optional<boolean> allow_overlap =
|
|
get_opt_attr<boolean>(sym, "allow_overlap");
|
|
optional<float> opacity =
|
|
get_opt_attr<float>(sym, "opacity");
|
|
|
|
optional<std::string> transform_wkt = get_opt_attr<string>(sym, "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;
|
|
}
|
|
}
|
|
|
|
if ( relative_to_xml_ )
|
|
{
|
|
*file = ensure_relative_to_xml(file);
|
|
}
|
|
#ifdef MAPNIK_DEBUG
|
|
else {
|
|
std::clog << "\nFound relative paths in xml, leaving unchanged...\n";
|
|
}
|
|
#endif
|
|
|
|
point_symbolizer symbol(parse_path(*file));
|
|
|
|
if (allow_overlap)
|
|
{
|
|
symbol.set_allow_overlap( * allow_overlap );
|
|
}
|
|
if (opacity)
|
|
{
|
|
symbol.set_opacity( * opacity );
|
|
}
|
|
if (transform_wkt)
|
|
{
|
|
agg::trans_affine tr;
|
|
mapnik::svg::parse_transform(*transform_wkt,tr);
|
|
boost::array<double,6> matrix;
|
|
tr.store_to(&matrix[0]);
|
|
symbol.set_transform(matrix);
|
|
}
|
|
|
|
rule.append(symbol);
|
|
}
|
|
catch (image_reader_exception const & ex )
|
|
{
|
|
string msg("Failed to load image file '" + * file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
point_symbolizer symbol;
|
|
|
|
if (allow_overlap)
|
|
{
|
|
symbol.set_allow_overlap( * allow_overlap );
|
|
}
|
|
if (opacity)
|
|
{
|
|
symbol.set_opacity( * opacity );
|
|
}
|
|
rule.append(symbol);
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in PointSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|
|
void map_parser::parse_markers_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
std::string filename("");
|
|
optional<std::string> file = get_opt_attr<string>(sym, "file");
|
|
optional<std::string> base = get_opt_attr<string>(sym, "base");
|
|
optional<std::string> transform_wkt = get_opt_attr<string>(sym, "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;
|
|
}
|
|
}
|
|
|
|
if ( relative_to_xml_ )
|
|
{
|
|
*file = ensure_relative_to_xml(file);
|
|
}
|
|
#ifdef MAPNIK_DEBUG
|
|
else {
|
|
std::clog << "\nFound relative paths in xml, leaving unchanged...\n";
|
|
}
|
|
#endif
|
|
filename = *file;
|
|
}
|
|
catch (...)
|
|
{
|
|
string msg("Failed to load marker file '" + *file + "'!");
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
markers_symbolizer symbol(parse_path(filename));
|
|
optional<float> opacity = get_opt_attr<float>(sym, "opacity");
|
|
if (opacity) symbol.set_opacity( *opacity );
|
|
|
|
if (transform_wkt)
|
|
{
|
|
agg::trans_affine tr;
|
|
mapnik::svg::parse_transform(*transform_wkt,tr);
|
|
boost::array<double,6> matrix;
|
|
tr.store_to(&matrix[0]);
|
|
symbol.set_transform(matrix);
|
|
}
|
|
|
|
optional<color> c = get_opt_attr<color>(sym, "fill");
|
|
if (c) symbol.set_fill(*c);
|
|
optional<double> spacing = get_opt_attr<double>(sym, "spacing");
|
|
if (spacing) symbol.set_spacing(*spacing);
|
|
optional<double> max_error = get_opt_attr<double>(sym, "max_error");
|
|
if (max_error) symbol.set_max_error(*max_error);
|
|
optional<boolean> allow_overlap = get_opt_attr<boolean>(sym, "allow_overlap");
|
|
if (allow_overlap) symbol.set_allow_overlap(*allow_overlap);
|
|
rule.append(symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in MarkersSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_line_pattern_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
std::string file = get_attr<string>(sym, "file");
|
|
optional<std::string> base = get_opt_attr<string>(sym, "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;
|
|
}
|
|
}
|
|
if ( relative_to_xml_ )
|
|
{
|
|
file = ensure_relative_to_xml(file);
|
|
}
|
|
#ifdef MAPNIK_DEBUG
|
|
else {
|
|
std::clog << "\nFound relative paths in xml, leaving unchanged...\n";
|
|
}
|
|
#endif
|
|
|
|
|
|
line_pattern_symbolizer symbol(parse_path(file));
|
|
rule.append(symbol);
|
|
}
|
|
catch (image_reader_exception const & ex )
|
|
{
|
|
string msg("Failed to load image file '" + file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in LinePatternSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_polygon_pattern_symbolizer( rule_type & rule,
|
|
ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
std::string file = get_attr<string>(sym, "file");
|
|
optional<std::string> base = get_opt_attr<string>(sym, "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;
|
|
}
|
|
}
|
|
if ( relative_to_xml_ )
|
|
{
|
|
file = ensure_relative_to_xml(file);
|
|
}
|
|
#ifdef MAPNIK_DEBUG
|
|
else {
|
|
std::clog << "\nFound relative paths in xml, leaving unchanged...\n";
|
|
}
|
|
#endif
|
|
|
|
polygon_pattern_symbolizer symbol(parse_path(file));
|
|
rule.append(symbol);
|
|
}
|
|
catch (image_reader_exception const & ex )
|
|
{
|
|
string msg("Failed to load image file '" + file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in PolygonPatternSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_text_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
std::string name = get_attr<string>(sym, "name");
|
|
|
|
optional<std::string> face_name =
|
|
get_opt_attr<std::string>(sym, "face_name");
|
|
|
|
optional<std::string> fontset_name =
|
|
get_opt_attr<std::string>(sym, "fontset_name");
|
|
|
|
unsigned size = get_attr(sym, "size", 10U);
|
|
|
|
color c = get_attr(sym, "fill", color(0,0,0));
|
|
|
|
text_symbolizer text_symbol = text_symbolizer(parse_expression(name, "utf8"), size, c);
|
|
|
|
optional<std::string> orientation = get_opt_attr<std::string>(sym, "orientation");
|
|
if (orientation)
|
|
{
|
|
text_symbol.set_orientation(parse_expression(*orientation, "utf8"));
|
|
}
|
|
|
|
if (fontset_name && face_name)
|
|
{
|
|
throw config_error(std::string("Can't have both face_name and fontset_name"));
|
|
}
|
|
else if (fontset_name)
|
|
{
|
|
std::map<std::string,font_set>::const_iterator itr = fontsets_.find(*fontset_name);
|
|
if (itr != fontsets_.end())
|
|
{
|
|
text_symbol.set_fontset(itr->second);
|
|
}
|
|
else
|
|
{
|
|
throw config_error("Unable to find any fontset named '" + *fontset_name + "'");
|
|
}
|
|
}
|
|
else if (face_name)
|
|
{
|
|
if ( strict_ )
|
|
{
|
|
ensure_font_face(*face_name);
|
|
}
|
|
text_symbol.set_face_name(*face_name);
|
|
}
|
|
else
|
|
{
|
|
throw config_error(std::string("Must have face_name or fontset_name"));
|
|
}
|
|
|
|
double dx = get_attr(sym, "dx", 0.0);
|
|
double dy = get_attr(sym, "dy", 0.0);
|
|
text_symbol.set_displacement(dx,dy);
|
|
|
|
label_placement_e placement =
|
|
get_attr<label_placement_e>(sym, "placement", POINT_PLACEMENT);
|
|
text_symbol.set_label_placement( placement );
|
|
// vertical alignment
|
|
|
|
vertical_alignment_e default_vertical_alignment = MIDDLE;
|
|
if (dy > 0.0 )
|
|
{
|
|
default_vertical_alignment = BOTTOM;
|
|
}
|
|
else if( dy < 0.0 )
|
|
{
|
|
default_vertical_alignment = TOP;
|
|
}
|
|
|
|
vertical_alignment_e valign = get_attr<vertical_alignment_e>(sym, "vertical_alignment", default_vertical_alignment);
|
|
text_symbol.set_vertical_alignment(valign);
|
|
|
|
// halo fill and radius
|
|
optional<color> halo_fill = get_opt_attr<color>(sym, "halo_fill");
|
|
if (halo_fill)
|
|
{
|
|
text_symbol.set_halo_fill( * halo_fill );
|
|
}
|
|
optional<double> halo_radius =
|
|
get_opt_attr<double>(sym, "halo_radius");
|
|
if (halo_radius)
|
|
{
|
|
text_symbol.set_halo_radius(*halo_radius);
|
|
}
|
|
|
|
// text ratio and wrap width
|
|
optional<unsigned> text_ratio =
|
|
get_opt_attr<unsigned>(sym, "text_ratio");
|
|
if (text_ratio)
|
|
{
|
|
text_symbol.set_text_ratio(*text_ratio);
|
|
}
|
|
|
|
optional<unsigned> wrap_width =
|
|
get_opt_attr<unsigned>(sym, "wrap_width");
|
|
if (wrap_width)
|
|
{
|
|
text_symbol.set_wrap_width(*wrap_width);
|
|
}
|
|
|
|
optional<boolean> wrap_before =
|
|
get_opt_attr<boolean>(sym, "wrap_before");
|
|
if (wrap_before)
|
|
{
|
|
text_symbol.set_wrap_before(*wrap_before);
|
|
}
|
|
|
|
// character used to break long strings
|
|
optional<std::string> wrap_char =
|
|
get_opt_attr<std::string>(sym, "wrap_character");
|
|
if (wrap_char && (*wrap_char).size() > 0)
|
|
{
|
|
text_symbol.set_wrap_char((*wrap_char)[0]);
|
|
}
|
|
|
|
// text conversion before rendering
|
|
text_convert_e tconvert =
|
|
get_attr<text_convert_e>(sym, "text_convert", NONE);
|
|
text_symbol.set_text_convert(tconvert);
|
|
|
|
// spacing between text lines
|
|
optional<unsigned> line_spacing = get_opt_attr<unsigned>(sym, "line_spacing");
|
|
if (line_spacing)
|
|
{
|
|
text_symbol.set_line_spacing(*line_spacing);
|
|
}
|
|
|
|
// spacing between characters in text
|
|
optional<unsigned> character_spacing = get_opt_attr<unsigned>(sym, "character_spacing");
|
|
if (character_spacing)
|
|
{
|
|
text_symbol.set_character_spacing(*character_spacing);
|
|
}
|
|
|
|
// spacing between repeated labels on lines
|
|
optional<unsigned> spacing = get_opt_attr<unsigned>(sym, "spacing");
|
|
if (spacing)
|
|
{
|
|
text_symbol.set_label_spacing(*spacing);
|
|
}
|
|
|
|
// minimum distance between labels
|
|
optional<unsigned> min_distance =
|
|
get_opt_attr<unsigned>(sym, "min_distance");
|
|
if (min_distance)
|
|
{
|
|
text_symbol.set_minimum_distance(*min_distance);
|
|
}
|
|
|
|
// do not render labels around edges
|
|
optional<boolean> avoid_edges =
|
|
get_opt_attr<boolean>(sym, "avoid_edges");
|
|
if (avoid_edges)
|
|
{
|
|
text_symbol.set_avoid_edges( * avoid_edges);
|
|
}
|
|
|
|
// allow_overlap
|
|
optional<boolean> allow_overlap =
|
|
get_opt_attr<boolean>(sym, "allow_overlap");
|
|
if (allow_overlap)
|
|
{
|
|
text_symbol.set_allow_overlap( * allow_overlap );
|
|
}
|
|
|
|
// opacity
|
|
optional<double> opacity =
|
|
get_opt_attr<double>(sym, "opacity");
|
|
if (opacity)
|
|
{
|
|
text_symbol.set_text_opacity( * opacity );
|
|
}
|
|
|
|
// max_char_angle_delta
|
|
optional<double> max_char_angle_delta =
|
|
get_opt_attr<double>(sym, "max_char_angle_delta");
|
|
if (max_char_angle_delta)
|
|
{
|
|
text_symbol.set_max_char_angle_delta( * max_char_angle_delta);
|
|
}
|
|
|
|
// horizontal alignment
|
|
horizontal_alignment_e halign = get_attr<horizontal_alignment_e>(sym, "horizontal_alignment", H_MIDDLE);
|
|
text_symbol.set_horizontal_alignment(halign);
|
|
|
|
// justify alignment
|
|
justify_alignment_e jalign = get_attr<justify_alignment_e>(sym, "justify_alignment", J_MIDDLE);
|
|
text_symbol.set_justify_alignment(jalign);
|
|
|
|
rule.append(text_symbol);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in TextSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_shield_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
std::string name = get_attr<string>(sym, "name");
|
|
|
|
optional<std::string> face_name =
|
|
get_opt_attr<std::string>(sym, "face_name");
|
|
|
|
optional<std::string> fontset_name =
|
|
get_opt_attr<std::string>(sym, "fontset_name");
|
|
|
|
unsigned size = get_attr(sym, "size", 10U);
|
|
color fill = get_attr(sym, "fill", color(0,0,0));
|
|
|
|
std::string image_file = get_attr<string>(sym, "file");
|
|
optional<std::string> base = get_opt_attr<string>(sym, "base");
|
|
|
|
optional<std::string> transform_wkt = get_opt_attr<string>(sym, "transform");
|
|
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;
|
|
}
|
|
}
|
|
|
|
if ( relative_to_xml_ )
|
|
{
|
|
image_file = ensure_relative_to_xml(image_file);
|
|
}
|
|
#ifdef MAPNIK_DEBUG
|
|
else {
|
|
std::clog << "\nFound relative paths in xml, leaving unchanged...\n";
|
|
}
|
|
#endif
|
|
|
|
shield_symbolizer shield_symbol(parse_expression(name, "utf8"),size,fill,parse_path(image_file));
|
|
|
|
if (fontset_name && face_name)
|
|
{
|
|
throw config_error(std::string("Can't have both face_name and fontset_name"));
|
|
}
|
|
else if (fontset_name)
|
|
{
|
|
std::map<std::string,font_set>::const_iterator itr = fontsets_.find(*fontset_name);
|
|
if (itr != fontsets_.end())
|
|
{
|
|
shield_symbol.set_fontset(itr->second);
|
|
}
|
|
else
|
|
{
|
|
throw config_error("Unable to find any fontset named '" + *fontset_name + "'");
|
|
}
|
|
}
|
|
else if (face_name)
|
|
{
|
|
if ( strict_ )
|
|
{
|
|
ensure_font_face(*face_name);
|
|
}
|
|
shield_symbol.set_face_name(*face_name);
|
|
}
|
|
else
|
|
{
|
|
throw config_error(std::string("Must have face_name or fontset_name"));
|
|
}
|
|
// text displacement
|
|
double dx = get_attr(sym, "dx", 0.0);
|
|
double dy = get_attr(sym, "dy", 0.0);
|
|
shield_symbol.set_displacement(dx,dy);
|
|
|
|
label_placement_e placement =
|
|
get_attr<label_placement_e>(sym, "placement", POINT_PLACEMENT);
|
|
shield_symbol.set_label_placement( placement );
|
|
|
|
// don't render shields around edges
|
|
optional<boolean> avoid_edges =
|
|
get_opt_attr<boolean>(sym, "avoid_edges");
|
|
if (avoid_edges)
|
|
{
|
|
shield_symbol.set_avoid_edges( *avoid_edges);
|
|
}
|
|
|
|
// halo fill and radius
|
|
optional<color> halo_fill = get_opt_attr<color>(sym, "halo_fill");
|
|
if (halo_fill)
|
|
{
|
|
shield_symbol.set_halo_fill( * halo_fill );
|
|
}
|
|
optional<double> halo_radius =
|
|
get_opt_attr<double>(sym, "halo_radius");
|
|
if (halo_radius)
|
|
{
|
|
shield_symbol.set_halo_radius(*halo_radius);
|
|
}
|
|
|
|
// minimum distance between labels
|
|
optional<unsigned> min_distance =
|
|
get_opt_attr<unsigned>(sym, "min_distance");
|
|
if (min_distance)
|
|
{
|
|
shield_symbol.set_minimum_distance(*min_distance);
|
|
}
|
|
|
|
// spacing between repeated labels on lines
|
|
optional<unsigned> spacing = get_opt_attr<unsigned>(sym, "spacing");
|
|
if (spacing)
|
|
{
|
|
shield_symbol.set_label_spacing(*spacing);
|
|
}
|
|
|
|
// allow_overlap
|
|
optional<boolean> allow_overlap =
|
|
get_opt_attr<boolean>(sym, "allow_overlap");
|
|
if (allow_overlap)
|
|
{
|
|
shield_symbol.set_allow_overlap( * allow_overlap );
|
|
}
|
|
|
|
// vertical alignment
|
|
vertical_alignment_e valign = get_attr<vertical_alignment_e>(sym, "vertical_alignment", MIDDLE);
|
|
shield_symbol.set_vertical_alignment(valign);
|
|
|
|
// horizontal alignment
|
|
horizontal_alignment_e halign = get_attr<horizontal_alignment_e>(sym, "horizontal_alignment", H_MIDDLE);
|
|
shield_symbol.set_horizontal_alignment(halign);
|
|
|
|
// justify alignment
|
|
justify_alignment_e jalign = get_attr<justify_alignment_e>(sym, "justify_alignment", J_MIDDLE);
|
|
shield_symbol.set_justify_alignment(jalign);
|
|
|
|
optional<unsigned> wrap_width =
|
|
get_opt_attr<unsigned>(sym, "wrap_width");
|
|
if (wrap_width)
|
|
{
|
|
shield_symbol.set_wrap_width(*wrap_width);
|
|
}
|
|
|
|
optional<boolean> wrap_before =
|
|
get_opt_attr<boolean>(sym, "wrap_before");
|
|
if (wrap_before)
|
|
{
|
|
shield_symbol.set_wrap_before(*wrap_before);
|
|
}
|
|
|
|
// character used to break long strings
|
|
optional<std::string> wrap_char =
|
|
get_opt_attr<std::string>(sym, "wrap_character");
|
|
if (wrap_char && (*wrap_char).size() > 0)
|
|
{
|
|
shield_symbol.set_wrap_char((*wrap_char)[0]);
|
|
}
|
|
|
|
// text conversion before rendering
|
|
text_convert_e tconvert =
|
|
get_attr<text_convert_e>(sym, "text_convert", NONE);
|
|
shield_symbol.set_text_convert(tconvert);
|
|
|
|
// spacing between text lines
|
|
optional<unsigned> line_spacing = get_opt_attr<unsigned>(sym, "line_spacing");
|
|
if (line_spacing)
|
|
{
|
|
shield_symbol.set_line_spacing(*line_spacing);
|
|
}
|
|
|
|
// spacing between characters in text
|
|
optional<unsigned> character_spacing = get_opt_attr<unsigned>(sym, "character_spacing");
|
|
if (character_spacing)
|
|
{
|
|
shield_symbol.set_character_spacing(*character_spacing);
|
|
}
|
|
|
|
// opacity
|
|
optional<double> opacity =
|
|
get_opt_attr<double>(sym, "opacity");
|
|
if (opacity)
|
|
{
|
|
shield_symbol.set_opacity( * opacity );
|
|
}
|
|
|
|
// text-opacity
|
|
optional<double> text_opacity =
|
|
get_opt_attr<double>(sym, "text-opacity");
|
|
if (text_opacity)
|
|
{
|
|
shield_symbol.set_text_opacity( * text_opacity );
|
|
}
|
|
|
|
if (transform_wkt)
|
|
{
|
|
agg::trans_affine tr;
|
|
mapnik::svg::parse_transform(*transform_wkt,tr);
|
|
boost::array<double,6> matrix;
|
|
tr.store_to(&matrix[0]);
|
|
shield_symbol.set_transform(matrix);
|
|
}
|
|
|
|
// unlock_image
|
|
optional<boolean> unlock_image =
|
|
get_opt_attr<boolean>(sym, "unlock_image");
|
|
if (unlock_image)
|
|
{
|
|
shield_symbol.set_unlock_image( * unlock_image );
|
|
}
|
|
|
|
// no text
|
|
optional<boolean> no_text =
|
|
get_opt_attr<boolean>(sym, "no_text");
|
|
if (no_text)
|
|
{
|
|
shield_symbol.set_no_text( * no_text );
|
|
}
|
|
|
|
rule.append(shield_symbol);
|
|
}
|
|
catch (image_reader_exception const & ex )
|
|
{
|
|
string msg("Failed to load image file '" + image_file +
|
|
"': " + ex.what());
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
clog << "### WARNING: " << msg << endl;
|
|
}
|
|
}
|
|
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in ShieldSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_line_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
stroke strk;
|
|
// stroke color
|
|
optional<color> c = get_opt_attr<color>(sym, "stroke");
|
|
if (c) strk.set_color(*c);
|
|
// stroke-width
|
|
optional<double> width = get_opt_attr<double>(sym, "stroke-width");
|
|
if (width) strk.set_width(*width);
|
|
// stroke-opacity
|
|
optional<double> opacity = get_opt_attr<double>(sym, "stroke-opacity");
|
|
if (opacity) strk.set_opacity(*opacity);
|
|
// stroke-linejoin
|
|
optional<line_join_e> line_join = get_opt_attr<line_join_e>(sym, "stroke-linejoin");
|
|
if (line_join) strk.set_line_join(*line_join);
|
|
// stroke-linecap
|
|
optional<line_cap_e> line_cap = get_opt_attr<line_cap_e>(sym, "stroke-linecap");
|
|
if (line_cap) strk.set_line_cap(*line_cap);
|
|
// stroke-dashaffset
|
|
optional<double> offset = get_opt_attr<double>(sym, "stroke-dashoffet");
|
|
if (offset) strk.set_dash_offset(*offset);
|
|
// stroke-dasharray
|
|
optional<string> str = get_opt_attr<string>(sym,"stroke-dasharray");
|
|
if (str)
|
|
{
|
|
tokenizer<> tok (*str);
|
|
std::vector<double> dash_array;
|
|
tokenizer<>::iterator itr = tok.begin();
|
|
for (; itr != tok.end(); ++itr)
|
|
{
|
|
try
|
|
{
|
|
double f = boost::lexical_cast<double>(*itr);
|
|
dash_array.push_back(f);
|
|
}
|
|
catch ( boost::bad_lexical_cast &)
|
|
{
|
|
throw config_error(std::string("Failed to parse dasharray ") +
|
|
"'. Expected a " +
|
|
"list of floats but got '" + (*str) + "'");
|
|
}
|
|
}
|
|
if (dash_array.size())
|
|
{
|
|
size_t size = dash_array.size();
|
|
if ( size % 2)
|
|
{
|
|
for (size_t i=0; i < size ;++i)
|
|
{
|
|
dash_array.push_back(dash_array[i]);
|
|
}
|
|
}
|
|
std::vector<double>::const_iterator pos = dash_array.begin();
|
|
while (pos != dash_array.end())
|
|
{
|
|
strk.add_dash(*pos,*(pos + 1));
|
|
pos +=2;
|
|
}
|
|
}
|
|
}
|
|
rule.append(line_symbolizer(strk));
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in LineSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|
|
void map_parser::parse_polygon_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
polygon_symbolizer poly_sym;
|
|
// fill
|
|
optional<color> fill = get_opt_attr<color>(sym, "fill");
|
|
if (fill) poly_sym.set_fill(*fill);
|
|
// fill-opacity
|
|
optional<double> opacity = get_opt_attr<double>(sym, "fill-opacity");
|
|
if (opacity) poly_sym.set_opacity(*opacity);
|
|
// gamma
|
|
optional<double> gamma = get_opt_attr<double>(sym, "gamma");
|
|
if (gamma) poly_sym.set_gamma(*gamma);
|
|
rule.append(poly_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in PolygonSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|
|
void map_parser::parse_building_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try {
|
|
building_symbolizer building_sym;
|
|
|
|
// fill
|
|
optional<color> fill = get_opt_attr<color>(sym, "fill");
|
|
if (fill) building_sym.set_fill(*fill);
|
|
// fill-opacity
|
|
optional<double> opacity = get_opt_attr<double>(sym, "fill-opacity");
|
|
if (opacity) building_sym.set_opacity(*opacity);
|
|
// height
|
|
optional<double> height = get_opt_attr<double>(sym, "height");
|
|
if (opacity) building_sym.set_height(*height);
|
|
|
|
rule.append(building_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in BuildingSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_raster_symbolizer( rule_type & rule, ptree const & sym )
|
|
{
|
|
try
|
|
{
|
|
raster_symbolizer raster_sym;
|
|
|
|
// mode
|
|
optional<std::string> mode = get_opt_attr<std::string>(sym, "mode");
|
|
if (mode) raster_sym.set_mode(*mode);
|
|
|
|
// scaling
|
|
optional<std::string> scaling = get_opt_attr<std::string>(sym, "scaling");
|
|
if (scaling) raster_sym.set_scaling(*scaling);
|
|
|
|
// opacity
|
|
optional<double> opacity = get_opt_attr<double>(sym, "opacity");
|
|
if (opacity) raster_sym.set_opacity(*opacity);
|
|
|
|
ptree::const_iterator cssIter = sym.begin();
|
|
ptree::const_iterator endCss = sym.end();
|
|
|
|
for(; cssIter != endCss; ++cssIter)
|
|
{
|
|
ptree::value_type const& css_tag = *cssIter;
|
|
|
|
if (css_tag.first == "RasterColorizer")
|
|
{
|
|
raster_colorizer_ptr colorizer(new raster_colorizer());
|
|
raster_sym.set_colorizer(colorizer);
|
|
parse_raster_colorizer(colorizer, css_tag.second);
|
|
}
|
|
else if (css_tag.first != "<xmlcomment>" &&
|
|
css_tag.first != "<xmlattr>" )
|
|
{
|
|
throw config_error(std::string("Unknown child node. ") +
|
|
"Expected 'RasterColorizer' but got '" + css_tag.first + "'");
|
|
}
|
|
}
|
|
rule.append(raster_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in RasterSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_glyph_symbolizer(rule_type & rule, ptree const &sym)
|
|
{
|
|
try
|
|
{
|
|
// Parse required constructor args
|
|
std::string face_name = get_attr<std::string>(sym, "face_name");
|
|
std::string _char = get_attr<std::string>(sym, "char");
|
|
|
|
glyph_symbolizer glyph_sym = glyph_symbolizer(
|
|
face_name,
|
|
parse_expression(_char, "utf8")
|
|
);
|
|
|
|
//
|
|
// parse and set optional attrs.
|
|
//
|
|
|
|
// angle
|
|
optional<std::string> angle =
|
|
get_opt_attr<std::string>(sym, "angle");
|
|
if (angle)
|
|
glyph_sym.set_angle(parse_expression(*angle, "utf8"));
|
|
|
|
angle_mode_e angle_mode =
|
|
get_attr<angle_mode_e>(sym, "angle_mode", TRIGONOMETRIC);
|
|
glyph_sym.set_angle_mode(angle_mode);
|
|
|
|
// value
|
|
optional<std::string> value =
|
|
get_opt_attr<std::string>(sym, "value");
|
|
if (value)
|
|
glyph_sym.set_value(parse_expression(*value, "utf8"));
|
|
|
|
// size
|
|
optional<std::string> size =
|
|
get_opt_attr<std::string>(sym, "size");
|
|
if (size)
|
|
glyph_sym.set_size(parse_expression(*size, "utf8"));
|
|
|
|
// color
|
|
optional<std::string> _color =
|
|
get_opt_attr<std::string>(sym, "color");
|
|
if (_color)
|
|
glyph_sym.set_color(parse_expression(*_color, "utf8"));
|
|
|
|
// halo_fill
|
|
optional<color> halo_fill = get_opt_attr<color>(sym, "halo_fill");
|
|
if (halo_fill)
|
|
glyph_sym.set_halo_fill(*halo_fill);
|
|
|
|
// halo_radius
|
|
optional<double> halo_radius = get_opt_attr<double>(
|
|
sym,
|
|
"halo_radius");
|
|
if (halo_radius)
|
|
glyph_sym.set_halo_radius(*halo_radius);
|
|
|
|
// allow_overlap
|
|
optional<boolean> allow_overlap = get_opt_attr<boolean>(
|
|
sym,
|
|
"allow_overlap"
|
|
);
|
|
if (allow_overlap)
|
|
glyph_sym.set_allow_overlap(*allow_overlap);
|
|
|
|
// avoid_edges
|
|
optional<boolean> avoid_edges = get_opt_attr<boolean>(
|
|
sym,
|
|
"avoid_edges"
|
|
);
|
|
if (avoid_edges)
|
|
glyph_sym.set_avoid_edges(*avoid_edges);
|
|
|
|
// displacement
|
|
optional<double> dx = get_opt_attr<double>(sym, "dx");
|
|
optional<double> dy = get_opt_attr<double>(sym, "dy");
|
|
if (dx && dy)
|
|
glyph_sym.set_displacement(*dx, *dy);
|
|
|
|
// colorizer
|
|
ptree::const_iterator childIter = sym.begin();
|
|
ptree::const_iterator endChild = sym.end();
|
|
|
|
for (; childIter != endChild; ++childIter)
|
|
{
|
|
ptree::value_type const& tag = *childIter;
|
|
|
|
if (tag.first == "RasterColorizer")
|
|
{
|
|
raster_colorizer_ptr colorizer(new raster_colorizer());
|
|
glyph_sym.set_colorizer(colorizer);
|
|
parse_raster_colorizer(colorizer, tag.second);
|
|
}
|
|
else if (tag.first!="<xmlcomment>" && tag.first!="<xmlattr>" )
|
|
{
|
|
throw config_error(std::string("Unknown child node. ") +
|
|
"Expected 'RasterColorizer' but got '" +
|
|
tag.first + "'");
|
|
}
|
|
}
|
|
|
|
|
|
rule.append(glyph_sym);
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in GlyphSymbolizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_raster_colorizer(raster_colorizer_ptr const& rc,
|
|
ptree const& node )
|
|
{
|
|
try
|
|
{
|
|
ptree::const_iterator cbIter = node.begin();
|
|
ptree::const_iterator endCb = node.end();
|
|
|
|
for(; cbIter != endCb; ++cbIter)
|
|
{
|
|
ptree::value_type const& cb_tag = *cbIter;
|
|
ptree const & cb = cbIter->second;
|
|
|
|
if (cb_tag.first == "ColorBand")
|
|
{
|
|
std::string value_s = get_attr<string>(cb, "value");
|
|
float value;
|
|
std::stringstream(value_s) >> value;
|
|
optional<color> c = get_opt_attr<color>(cb, "color");
|
|
if (!c) {
|
|
throw config_error("missing color");
|
|
}
|
|
unsigned midpoints = get_attr(cb, "midpoints", 0);
|
|
optional<float> max_value = get_opt_attr<float>(cb, "max_value");
|
|
if (max_value) {
|
|
rc->append_band(value, *max_value, *c, midpoints);
|
|
} else {
|
|
rc->append_band(value, *c, midpoints);
|
|
}
|
|
}
|
|
else if (cb_tag.first != "<xmlcomment>" &&
|
|
cb_tag.first != "<xmlattr>" )
|
|
{
|
|
throw config_error(std::string("Unknown child node. ") +
|
|
"Expected 'ColorBand' but got '" + cb_tag.first + "'");
|
|
}
|
|
}
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context("in RasterColorizer");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::ensure_font_face( const std::string & 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 )
|
|
{
|
|
boost::filesystem::path xml_path = filename_;
|
|
boost::filesystem::path rel_path = *opt_path;
|
|
if ( !rel_path.has_root_path() ) {
|
|
boost::filesystem::path full = boost::filesystem::complete(xml_path.branch_path()/rel_path).normalize();
|
|
#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;
|
|
}
|
|
|
|
} // end of namespace mapnik
|