ArcPy: Create Latitude and Longitude Lines

arcpy_create_latitude_and_longitude_lines.py

#!python
# Reference: 1) https://pro.arcgis.com/en/pro-app/arcpy/classes/spatialreference.htm
#            2) https://pro.arcgis.com/en/pro-app/arcpy/classes/array.htm
#            3) https://pro.arcgis.com/en/pro-app/arcpy/classes/point.htm
#            4) https://pro.arcgis.com/en/pro-app/arcpy/classes/polyline.htm

import arcpy

SR = arcpy.SpatialReference(4326)
interval = 5 # Interval of latitude and longitude lines, multiple of 1 degree
density = 10 # Density of vertices between each degree


# Example 1: Creating densified polylines
long_lines = [
	arcpy.Polyline(
		arcpy.Array(arcpy.Point(x, -90 + y/float(density))
		                        for y
		                        in range(180*density + 1)),
	    SR
	)
	for x in range(-180, 180 + interval, interval)
]

lat_lines = [
	arcpy.Polyline(
		arcpy.Array(arcpy.Point(-180 + x/float(density), y)
		                        for x
		                        in range(360*density + 1)),
		SR
	)
	for y in range(-90, 90 + interval, interval)
]

#