Erase Point (Editing)
Summary
Deletes points from the input that are either inside or outside the Remove Features, depending on the Operation Type.
Illustration
![Erase Point Illustration Erase Point Illustration](001v/GUID-C145682B-EE23-4DC5-B83C-41C6FBB50758-web.png)
Usage
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To delete points inside or on the boundary of the Remove Features, use operation type INSIDE. To delete points outside the Remove Features, use operation type OUTSIDE.
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For multipoint input features, only points inside or outside the Remove Features will be deleted, depending on the Operation Type.
![Caution Caution](rsrc/caution.png)
This tool modifies the input data. See Tools with no outputs for more information and strategies to avoid undesired data changes.
Syntax
Parameter | Explanation | Data Type |
in_features |
The input point features. | Feature layer |
remove_features |
Input features inside or outside the Remove Features will be deleted, depending on the Operation Type parameter. | Feature Layer |
operation_type (Optional) |
Determines if points INSIDE or OUTSIDE the Remove Features will be deleted.
| String |
Code Sample
# Name: ErasePoint_Example.py
# Description: Erase points inside polygon features
# Requirements:
# Author: ESRI
import arcpy
from arcpy import env
env.workspace="C:/data"
inFeatures="wells.shp"
removeFeatures="land.shp"
operationType="INSIDE"
try:
arcpy.ErasePoint_edit(inFeatures, removeFeatures, operationType)
except Exception, e:
# If an error occurred, print line number and error message
import traceback, sys
tb = sys.exc_info()[2]
print "Line %i" % tb.tb_lineno
print e.message
The following stand-alone script demonstrates how to use the ErasePoint function.
# Name: ErasePoint_Example2.py
# Description: Replacing low resolution elevation points inside
# lake areas by high resolution lidar points.
# Author: ESRI
# Import system modules
import arcpy
from arcpy import env
# Set environment settings
env.workspace = "C:/data/Portland.gdb/relief"
# Set local variables
inElevationFeatures = "elevation_points"
inLidarFeatures = "lidar_points"
inLakeFeatures = "lakes"
# Erase elevation points inside lakes
arcpy.ErasePoint_edit(inElevationFeatures, inLakeFeatures, "INSIDE")
# Clip lidar points inside lakes
arcpy.ErasePoint_edit(inLidarFeatures, inLakeFeatures, "OUTSIDE")
# Append the clipped lidar points to the remaining elevation points
arcpy.Append_management(inElevationFeatures, inLidarFeatures, "NO_TEST")
The following Python window script demonstrates how to use the ErasePoint function in immediate mode.
import arcpy
arcpy.env.workspace = "C:/data"
arcpy.ErasePoint_edit("trees.shp", "park_boundaries", "INSIDE")