arcpy.3d.TinNode(in_tin, out_feature_class, {spot_field}, {tag_field})
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Name
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Erläuterung
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Datentyp
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in_tin
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Das TIN-Dataset, das verarbeitet wird.
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TIN Layer
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out_feature_class
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Die Feature-Class, die erstellt werden soll.
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Feature Class
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spot_field
(Optional)
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Der Name des Höhenattributfeldes der Ausgabe-Feature-Class. Wenn das Feld benannt wurde, ist die Feature-Class zweidimensional, andernfalls dreidimensional. In der Standardeinstellung wird kein Name angegeben, sodass 3D-Punkt-Features erstellt werden.
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String
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tag_field
(Optional)
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Der Name des Feldes, in dem das Tag-Attribut der Ausgabe-Feature-Class gespeichert wird. Standardmäßig wird kein Tag-Wertefeld erstellt.
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String
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Codebeispiel
TinNode: Beispiel 1 (Python-Fenster)
Anhand des folgenden Beispiels wird die Verwendung dieses Werkzeugs im Python-Fenster veranschaulicht:
arcpy.env.workspace = 'C:/data'
arcpy.ddd.TinNode('tin', 'elevation_node.shp', spot_field='Elevation')
TinNodeBeispiel: 2 (eigenständiges Skript)
Im folgenden Beispiel wird die Verwendung dieses Werkzeugs in einem eigenständigen Python-Skript veranschaulicht:
"""****************************************************************************
Name: Create Terrain from TIN
Description: This script demonstrates how to create a terrain dataset using
features extracted from a TIN. It is particularly useful in
situations where the source data used in the TIN is not available,
and the amount of data stored in the TIN proves to be too large
for the TIN. The terrain's scalability will allow improved
display performance and faster analysis. The script is designed
to work as a script tool with 5 input arguments.
****************************************************************************"""
# Import system modules
import arcpy
# Set local variables
tin = arcpy.GetParameterAsText(0) # TIN used to create terrain
gdbLocation = arcpy.GetParameterAsText(1) # Folder that will store terran GDB
gdbName = arcpy.GetParameterAsText(2) # Name of terrain GDB
fdName = arcpy.GetParameterAsText(3) # Name of feature dataset
terrainName = arcpy.GetParameterAsText(4) # Name of terrain
try:
# Create the file gdb that will store the feature dataset
arcpy.management.CreateFileGDB(gdbLocation, gdbName)
gdb = '{0}/{1}'.format(gdbLocation, gdbName)
# Obtain spatial reference from TIN
SR = arcpy.Describe(tin).spatialReference
# Create the feature dataset that will store the terrain
arcpy.management.CreateFeatureDataset(gdb, fdName, SR)
fd = '{0}/{1}'.format(gdb, fdName)
# Export TIN elements to feature classes for terrain
arcpy.AddMessage("Exporting TIN footprint to define terrain boundary...")
boundary = "{0}/boundary".format(fd)
# Run TinDomain
arcpy.ddd.TinDomain(tin, tinDomain, 'POLYGON')
arcpy.AddMessage("Exporting TIN breaklines...")
breaklines = "{0}/breaklines".format(fd)
# Run TinLine
arcpy.ddd.TinLine(tin, breaklines, "Code")
arcpy.AddMessage("Exporting TIN nodes...")
masspoints = "{0}/masspoints".format(fd)
# Run TinNode
arcpy.ddd.TinNode(sourceTIN, TIN_nodes)
arcpy.AddMessage("Creating terrain dataset...")
terrain = "terrain_from_tin"
# Run CreateTerrain
arcpy.ddd.CreateTerrain(fd, terrainName, 10, 50000, "",
"WINDOWSIZE", "ZMEAN", "NONE", 1)
arcpy.AddMessage("Adding terrain pyramid levels...")
terrain = "{0}/{1}".format(fd, terrainName)
pyramids = ["20 5000", "25 10000", "35 25000", "50 50000"]
# Run AddTerrainPyramidLevel
arcpy.ddd.AddTerrainPyramidLevel(terrain, "", pyramids)
arcpy.AddMessage("Adding features to terrain...")
inFeatures = "{0} Shape softclip 1 0 10 true false boundary_embed <None> "\
"false; {1} Shape masspoints 1 0 50 true false points_embed "\
"<None> false; {2} Shape softline 1 0 25 false false lines_embed "\
"<None> false".format(boundary, masspoints, breaklines)
# Run AddFeatureClassToTerrain
arcpy.ddd.AddFeatureClassToTerrain(terrain, inFeatures)
arcpy.AddMessage("Building terrain...")
# Run BuildTerrain
arcpy.ddd.BuildTerrain(terrain, "NO_UPDATE_EXTENT")
arcpy.GetMessages()
except arcpy.ExecuteError:
print(arcpy.GetMessages())
except Exception as err:
print(err)
