ArcMap

Replace Terrain Points

Summary

Replaces points referenced by a terrain dataset with points from a specified feature class.

Usage

  • The terrain data source can be points, multipoints, or embedded points.

  • The replacement points can come from single-point or multipoint features.

  • Replacing points in a terrain dataset will invalidate it. Run Build Terrain after adding points or multipoints.

Syntax

arcpy.ddd.ReplaceTerrainPoints(in_terrain, terrain_feature_class, in_point_features, {polygon_features_or_extent})
ParameterExplanationData Type
in_terrain

The terrain dataset to process.

Terrain Layer
terrain_feature_class

The name of the terrain point feature class that will have some or all of its points replaced.

String
in_point_features

The point or multipoint features that will replace the terrain point features.

Feature Layer
polygon_features_or_extent
(Optional)

An optional area of interest can be used to define the extent of the area in which the terrain points would be replaced.

Feature Layer; Extent

Derived Output

NameExplanationData Type
derived_out_terrain

The updated input terrain.

Terrain Layer

Code sample

ReplaceTerrainPoints 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.ReplaceTerrainPoints_3d("sample.gdb/featuredataset/terrain", "points_old", 
                            "sample.gdb/featuredataset/terrain/pts_new")
ReplaceTerrainPoints example 2 (stand-alone script)

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

'''****************************************************************************
Name: ReplaceTerrainPoints Example
Description: This script demonstrates how to use the 
             ReplaceTerrainPoints tool.
****************************************************************************'''

# Import system modules
import arcpy
from arcpy import env

# 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"
TerrainFCl = "points_old"
InPoints = "sample.gdb/featuredataset/terrain/pts_new"

#Execute ReplaceTerrainPoints
arcpy.ReplaceTerrainPoints_3d(InTerrain, TerrainFCl, InPoints)

Environments

Licensing information

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

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