[QGIS] Coordinate Transformation

https://github.com/walter426/QgisUtilites/blob/master/QgsUtilities.py

It is a very useful and frequently used light tool to do coordinate transformation from a source CRS(Coordinate Reference System) to a destination CRS.

Code:

from qgis.core import *

def CoorTransformByCrsId(point, crs_id_src, crs_id_des):
    crs_src = QgsCoordinateReferenceSystem()
    crs_src.createFromSrid(crs_id_src)

    crs_des = QgsCoordinateReferenceSystem()
    crs_des.createFromSrid(crs_id_des)

    transformer = QgsCoordinateTransform(crs_src, crs_des)
    pt = transformer.transform(point)
    
    return pt


def CoorTransform(point, crs_src, crs_des):
    transformer = QgsCoordinateTransform(crs_src, crs_des)
    pt = transformer.transform(point)
    
    return pt