Method: RGeo::Geos::CAPIGeometryMethods#equals?

Defined in:

ext/geos_c_impl/geometry.c

#equals?(rhs) ⇒ Boolean

Returns:

• (Boolean)

# File 'ext/geos_c_impl/geometry.c', line 365

static VALUE
method_geometry_equals(VALUE self, VALUE rhs)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  const GEOSGeometry* rhs_geom;

  // Shortcut when self and rhs are the same object.
  if (self == rhs) {
    return Qtrue;
  }

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    rhs_geom = rgeo_get_geos_geometry_safe(rhs);
    if (rhs_geom) {
      // GEOS has a bug where empty geometries are not spatially equal
      // to each other. Work around this case first.
      if (GEOSisEmpty(self_geom) == 1 && GEOSisEmpty(rhs_geom) == 1) {
        result = Qtrue;
      } else {
        result = GEOSEquals(self_geom, rhs_geom) ? Qtrue : Qfalse;
      }
    }
  }
  return result;
}