ArcMap

Remove Terrain Pyramid Level

Available with 3D Analyst license.

Summary

Removes a pyramid level from a terrain dataset.

Usage

  • Any pyramid level can be removed except for level 0, which represents the full resolution pyramid.

  • When used in an enterprise geodatabase, the input terrain cannot be registered as versioned.

Syntax

RemoveTerrainPyramidLevel_3d (in_terrain, pyramid_level_resolution)
ParameterExplanationData Type
in_terrain

The terrain dataset to process.

Terrain Layer
pyramid_level_resolution

The pyramid level to be removed as specified by its resolution.

Double

Code sample

RemoveTerrainPyramidLevel 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.RemoveTerrainPyramidLevel_3d("sample.gdb/featuredataset/terrain", 10)
RemoveTerrainPyramidLevel example 2 (stand-alone script)

The following sample demonstrates the use of this tool in a stand-alone Python script.

'''****************************************************************************
Name: RemoveTerrainPyramidLevel Example
Description: This script demonstrates how to add new 
             points to a terrain with the DeleteTerrainPoints tool, then use 
             the ChangeTerrainReferenceScale and RemoveTerrainPyramidLevel to
             to adjust the pyramids for reducing the amount of data stored for 
             providing an optimized display performance.
****************************************************************************'''
# Import system modules
import arcpy
from arcpy import env
import traceback, sys

try:
    # Obtain a license for the ArcGIS 3D Analyst extension
    arcpy.CheckOutExtension("3D")
    # Set environment settings
    env.workspace = "C:/data"
    # Set Local Variables
    inTerrain = "sample.gdb/featuredataset/terrain"
    targetPts = "mass_pts_embed"
    AOI = "1379938.43267328 235633.08128634 1382756.00752135 237681.848838107"
    #Execute DeleteTerrainPoints
    arcpy.DeleteTerrainPoints_3d(inTerrain, targetPts, AOI)
    arcpy.AddMessage("Changing the terrain reference scale...")
    # Execute ChangeTerrainReferenceScale
    arcpy.ChangeTerrainReferenceScale_3d(inTerrain, 500, 1000)
    # Execute RemoveTerrainPyramidLevel
    arcpy.RemoveTerrainPyramidLevel_3d(inTerrain, 4)

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

  • ArcGIS Desktop Basic: Requires 3D Analyst
  • ArcGIS Desktop Standard: Requires 3D Analyst
  • ArcGIS Desktop Advanced: Requires 3D Analyst

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