parse_geojson_multilinestring()

static LWGEOM* parse_geojson_multilinestring ( json_object *  geojson, int *  hasz, int  root_srid  )

static

Definition at line 338 of file lwin_geojson.c.

References findMemberByName(), geojson_lwerror(), lwcollection_construct_empty(), lwline_construct(), lwmline_add_lwline(), MULTILINETYPE, parse_geojson_coord(), and ptarray_construct_empty().

Referenced by parse_geojson().

{
        LWGEOM *geom = NULL;
        int i, j;
        json_object* poObjLines = NULL;

        if (!root_srid)
        {
                geom = (LWGEOM *)lwcollection_construct_empty(MULTILINETYPE, root_srid, 1, 0);
        }
        else
        {
                geom = (LWGEOM *)lwcollection_construct_empty(MULTILINETYPE, -1, 1, 0);
        }

        poObjLines = findMemberByName( geojson, "coordinates" );
        if ( ! poObjLines )
        {
                geojson_lwerror("Unable to find 'coordinates' in GeoJSON string", 4);
                return NULL;
        }

        if( json_type_array == json_object_get_type( poObjLines ) )
        {
                const int nLines = json_object_array_length( poObjLines );
                for( i = 0; i < nLines; ++i)
                {
                        POINTARRAY *pa = NULL;
                        json_object* poObjLine = NULL;
                        poObjLine = json_object_array_get_idx( poObjLines, i );
                        pa = ptarray_construct_empty(1, 0, 1);

                        if( json_type_array == json_object_get_type( poObjLine ) )
                        {
                                const int nPoints = json_object_array_length( poObjLine );
                                for(j = 0; j < nPoints; ++j)
                                {
                                        json_object* coords = NULL;
                                        coords = json_object_array_get_idx( poObjLine, j );
                                        parse_geojson_coord(coords, hasz, pa);
                                }

                                geom = (LWGEOM*)lwmline_add_lwline((LWMLINE*)geom,
                                                                   (LWLINE*)lwline_construct(root_srid, NULL, pa));
                        }
                }
        }

        return geom;
}

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