def get_png(self, queryset):
if isinstance(queryset, GEOSGeometry):
wkt = queryset.wkt
geom_type = queryset.geom_type
else:
wkt = queryset.geom.wkt
geom_type = queryset.geom.geom_type
builder_png = BuilderPNG({'wkt': wkt, 'type': geom_type})
return builder_png.generate()
def get_png(self, queryset):
wkt = "GEOMETRYCOLLECTION("
for i,e in enumerate(queryset):
wkt += e.geom.wkt #it is need to fix the case that the attribute is not called by geom
if i != len(queryset)-1:
wkt += ","
else:
wkt += ")"
geom_type = queryset[0].geom.geom_type
builder_png = BuilderPNG({'wkt': wkt, 'type': geom_type})
return builder_png.generate()