Returns the crs object from a file, with the format determined from the filename extension.
- filepath: filepath to be loaded, including extension.
Returns the crs object from a string interpreted as a specified format, located at a given url site.
- url: The url where the crs string is to be read from.
- format (optional): Which format to parse the crs string as. One of "ogc wkt", "esri wkt", or "proj4". If None, tries to autodetect the format for you (default).
- CRS object.