def on_mCRSoutput_clicked(self):
# https://gis-ops.com/qgis-3-plugin-tutorial-plugin-development-explained-part-1/
projSelector = QgsProjectionSelectionWidget()
projSelector.selectCrs()
try:
authid = projSelector.crs().authid()
description = projSelector.crs().description()
self.crs = projSelector.crs()
success = projSelector.crs()
if not success:
self.crs = None
else:
self.crsDesc.setText(description)
self.form_crsID.setText(authid)
except:
self.crs = None
