Method: RGeo::Geos::CAPIGeometryMethods#_as_text

Defined in:

ext/geos_c_impl/geometry.c

#_as_text ⇒ Object

# File 'ext/geos_c_impl/geometry.c', line 246

static VALUE
method_geometry_as_text(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  RGeo_FactoryData* factory_data;
  VALUE wkt_generator;
  GEOSWKTWriter* wkt_writer;
  char* str;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    factory_data = RGEO_FACTORY_DATA_PTR(self_data->factory);
    wkt_generator = factory_data->wkrep_wkt_generator;
    if (!NIL_P(wkt_generator)) {
      result = rb_funcall(wkt_generator, rb_intern("generate"), 1, self);
    } else {
      wkt_writer = factory_data->wkt_writer;
      if (!wkt_writer) {
        wkt_writer = GEOSWKTWriter_create();
        GEOSWKTWriter_setOutputDimension(wkt_writer, 2);
        GEOSWKTWriter_setTrim(wkt_writer, 1);
        factory_data->wkt_writer = wkt_writer;
      }
      str = GEOSWKTWriter_write(wkt_writer, self_geom);
      if (str) {
        result = rb_str_new2(str);
        GEOSFree(str);
      }
    }
  }
  return result;
}