Available with 3D Analyst license.
Summary
Deletes points within a specified area of interest from one or more features that participate in a terrain dataset.
Usage
Deleting points from an embedded feature class will invalidate the terrain. Run the Build Terrain tool after deleting points.
If the terrain is in an enterprise geodatabase, it must be registered as versioned.
Syntax
DeleteTerrainPoints(in_terrain, data_source, polygon_features_or_extent)
Parameter | Explanation | Data Type |
in_terrain | The terrain dataset to process. | Terrain Layer |
data_source [data_source,...] | One or more feature classes from which points will be removed. | String |
polygon_features_or_extent | Specifies the area from which points will be removed. A polygon feature class or an extent can be used. If extent values are desired, use an arcpy.Extent object. | Feature Layer; Extent |
Derived Output
Name | Explanation | Data Type |
derived_out_terrain | The updated terrain. | Terrain Layer |
Code sample
DeleteTerrainPoints example 1 (Python window)
The following sample demonstrates the use of this tool in the Python window.
import arcpy
from arcpy import env
arcpy.CheckOutExtension("3D")
env.workspace = "C:/data"
arcpy.DeleteTerrainPoints_3d("sample.gdb/featuredataset/terrain",
"mass_pts_embed", "1379938 235633 1382756 237681")
DeleteTerrainPoints example 2 (stand-alone script)
The following sample demonstrates the use of this tool in a stand-alone Python script.
'''**********************************************************************
Name: Delete Terrain Outliers
Description: Uses Locate Outliers to identify outlier points in
a terrain dataset, and eliminates the outliers from the
terrain with Delete Terrain Points.
**********************************************************************'''
# Import system modules
import arcpy
import exceptions, sys, traceback
from arcpy import env
try:
arcpy.CheckOutExtension('3D')
# Set Local Variables
env.workspace = 'C:/data'
terrain = 'test.gdb/featuredataset/sample_terrain'
terrainPt = 'elevation_pts' # name of terrain point data source
outliers = 'in_memory/outliers'
# Execute LocateOutliers
arcpy.ddd.LocateOutliers(terrain, outliers, 'APPLY_HARD_LIMIT', -10,
350, 'APPLY_COMPARISON_FILTER', 1.2, 120,
0.8, 8000)
# Execute Delete Terrain Points
arcpy.ddd.DeleteTerrainPoints(terrain, terrainPt, outliers)
arcpy.CheckInExtension('3D')
except arcpy.ExecuteError:
print arcpy.GetMessages()
except:
# Get the traceback object
tb = sys.exc_info()[2]
tbinfo = traceback.format_tb(tb)[0]
# Concatenate error information into message string
pymsg = 'PYTHON ERRORS:\nTraceback info:\n{0}\nError Info:\n{1}'\
.format(tbinfo, str(sys.exc_info()[1]))
msgs = 'ArcPy ERRORS:\n {0}\n'.format(arcpy.GetMessages(2))
# Return python error messages for script tool or Python Window
arcpy.AddError(pymsg)
arcpy.AddError(msgs)
Environments
Licensing information
- Basic: Requires 3D Analyst
- Standard: Requires 3D Analyst
- Advanced: Requires 3D Analyst