sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

+ allow empty arrays in "coordinates" property

Browse source
This commit is contained in:
Artem Pavlenko 2012-06-12 13:55:15 +01:00
parent 49b49362a8
commit 203e0fd392
1 changed files with 26 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

53
include/mapnik/json/feature_grammar.hpp
View file

@ -162,7 +162,7 @@ struct feature_grammar :
using qi::_pass;
using qi::eps;
using qi::raw;
using phoenix::new_;
using phoenix::push_back;
using phoenix::construct;
@ -197,7 +197,7 @@ struct feature_grammar :
unesc_char.add
("\\\"", '\"') // quotation mark
("\\\\", '\\') // reverse solidus
("\\/", '/') // solidus
("\\/", '/') // solidus
("\\b", '\b') // backspace
("\\f", '\f') // formfeed
("\\n", '\n') // newline
@ -207,7 +207,7 @@ struct feature_grammar :
string_ %= lit('"') >> *(unesc_char | "\\u" >> hex4 | (char_ - lit('"'))) >> lit('"')
;
// geojson types
feature_type = lit("\"type\"")
@ -244,17 +244,17 @@ struct feature_grammar :
// ;
//////////////////////////////////////////////////////////////////
geometry = (lit('{')[_a = 0 ]
geometry = (lit('{')[_a = 0 ]
>> lit("\"type\"") >> lit(':') >> geometry_dispatch[_a = _1] // <---- should be Nabialek trick!
>> lit(',')
>> lit(',')
>> (lit("\"coordinates\"") > lit(':') > coordinates(_r1,_a)
|
lit("\"geometries\"") > lit(':')
|
lit("\"geometries\"") > lit(':')
>> lit('[') >> geometry_collection(_r1) >> lit(']'))
>> lit('}'))
| lit("null")
;
geometry_dispatch.add
("\"Point\"",1)
("\"LineString\"",2)
@ -265,7 +265,7 @@ struct feature_grammar :
("\"GeometryCollection\"",7)
//
;
coordinates = (eps(_r2 == 1) > point_coordinates(extract_geometry_(_r1)))
| (eps(_r2 == 2) > linestring_coordinates(extract_geometry_(_r1)))
| (eps(_r2 == 3) > polygon_coordinates(extract_geometry_(_r1)))
@ -273,46 +273,45 @@ struct feature_grammar :
| (eps(_r2 == 5) > multilinestring_coordinates(extract_geometry_(_r1)))
| (eps(_r2 == 6) > multipolygon_coordinates(extract_geometry_(_r1)))
;
point_coordinates = eps[ _a = new_<geometry_type>(Point) ]
> ( point(SEG_MOVETO,_a) [push_back(_r1,_a)] | eps[cleanup_(_a)][_pass = false] )
;
linestring_coordinates = eps[ _a = new_<geometry_type>(LineString)]
> (points(_a) [push_back(_r1,_a)]
> -(points(_a) [push_back(_r1,_a)]
| eps[cleanup_(_a)][_pass = false])
;
polygon_coordinates = eps[ _a = new_<geometry_type>(Polygon) ]
> ((lit('[')
> points(_a) % lit(',')
> -(points(_a) % lit(','))
> lit(']')) [push_back(_r1,_a)]
| eps[cleanup_(_a)][_pass = false])
;
multipoint_coordinates = lit('[')
> (point_coordinates(_r1) % lit(','))
multipoint_coordinates = lit('[')
> -(point_coordinates(_r1) % lit(','))
> lit(']')
;
multilinestring_coordinates = lit('[')
> (linestring_coordinates(_r1) % lit(','))
multilinestring_coordinates = lit('[')
> -(linestring_coordinates(_r1) % lit(','))
> lit(']')
;
multipolygon_coordinates = lit('[')
> (polygon_coordinates(_r1) % lit(','))
multipolygon_coordinates = lit('[')
> -(polygon_coordinates(_r1) % lit(','))
> lit(']')
;
geometry_collection = *geometry(_r1) >> *(lit(',') >> geometry(_r1))
;
// point
point = (lit('[') > double_ > lit(',') > double_ > lit(']')) [push_vertex_(_r1,_r2,_1,_2)];
// points
points = lit('[')[_a = SEG_MOVETO] > point (_a,_r1) % lit(',') [_a = SEG_LINETO] > lit(']');
// point
point = lit('[') > -((double_ > lit(',') > double_)[push_vertex_(_r1,_r2,_1,_2)]) > lit(']');
// points
points = lit('[')[_a = SEG_MOVETO] > -(point (_a,_r1) % lit(',')[_a = SEG_LINETO]) > lit(']');
on_error<fail>
(
feature
@ -362,7 +361,7 @@ struct feature_grammar :
qi::rule<Iterator,qi::locals<geometry_type*>,
void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> linestring_coordinates;
qi::rule<Iterator,qi::locals<geometry_type*>,
void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> polygon_coordinates;
void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> polygon_coordinates;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> multipoint_coordinates;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> multilinestring_coordinates;