attaches the current model directory to a relative path, if necessary. If filePath is an absolute path, this method simply returns it. If it's a relative path, then the current model directory is prepended to it. If this is a new model, the user's platform-dependent home directory is prepended instead.
attaches the current model directory to a relative path, if necessary. If filePath is an absolute path, this method simply returns it. If it's a relative path, then the current model directory is prepended to it. If this is a new model, the user's platform-dependent home directory is prepended instead.