Create a new path. Be sure to set the crs property when adding parts.
The EPSG CRS code of the coordinates in this path, like "4326" for example
The list of parts
Convert to a polygon WKT string.
a WKT string.
Convert to a polyline WKT string.
a WKT string.
Return the most top-level crs.
Convert the object to a string.
the string form of the object.
Class CoordinatePath defines a spatial path as a list of parts, so it can be a multi-polyline or a multi-polygon.
Donut shapes can be created by adding multiple parts to a single path. The winding rule for filling is 'nonzero', see https://en.wikipedia.org/wiki/Nonzero-rule So take care of the (counter)clockwise direction of each part.