TIN エッジ(TIN Edge) (3D Analyst)

サマリ

TIN(Triangulated Irregular Network)の三角形のエッジを使用して、3D ライン フィーチャを作成します。

TIN Edge illustration

使用法

構文

TinEdge_3d (in_tin, out_feature_class, {edge_type})
パラメータ説明データ タイプ
in_tin

The input TIN.

TIN Layer
out_feature_class

The output feature class.

Feature Class
edge_type
(オプション)

抽出する三角形のエッジのタイプ。

  • DATATIN の内挿ゾーンを表すエッジ。これがデフォルトです。
  • SOFT緩慢な勾配変化を表していると定義されたエッジ。
  • HARD急激な勾配変化を表していると定義されたエッジ。
  • ENFORCEDTIN の三角形分割で発生しなかったブレークラインを表すエッジ。
  • REGULARソフトにもハードにも分類されなかったエッジ。
  • OUTSIDE描画されていないエッジ。
  • ALLTIN データセットのすべてのエッジ。
String

コードのサンプル

TinEdge(TIN エッジ)の例 1(Python ウィンドウ)

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.TinEdge_3d('tin', 'tin_edge.shp', 'ENFORCED')
TinEdge(TIN エッジ)の例 2(スタンドアロン スクリプト)

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

"""****************************************************************************
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
import exceptions, sys, traceback
from arcpy import env

# 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:
    arcpy.CheckOutExtension("3D")
    # 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)
    # Execute TinDomain
    arcpy.ddd.TinDomain(tin, tinDomain, 'POLYGON')
    arcpy.AddMessage("Exporting TIN breaklines...")
    breaklines = "{0}/breaklines".format(fd)
    # Execute TinLine
    arcpy.ddd.TinLine(tin, breaklines, "Code")
    arcpy.AddMessage("Exporting TIN nodes...")
    masspoints = "{0}/masspoints".format(fd)
    # Execute TinNode
    arcpy.ddd.TinNode(sourceTIN, TIN_nodes)
    arcpy.AddMessage("Creating terrain dataset...")
    terrain = "terrain_from_tin"
    # Execute 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"]
    # Execute 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)
    # Execute AddFeatureClassToTerrain
    arcpy.ddd.AddFeatureClassToTerrain(terrain, inFeatures) 
    arcpy.AddMessage("Building terrain...")
    # Execute BuildTerrain
    arcpy.ddd.BuildTerrain(terrain, "NO_UPDATE_EXTENT")
    arcpy.GetMessages()

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)
finally:
    arcpy.CheckInExtension("3D")

環境

関連項目

ライセンス情報

ArcView: 必須 3D Analyst
ArcEditor: 必須 3D Analyst
ArcInfo: 必須 3D Analyst

7/10/2012