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。
図
使用法
-
[エッジ タイプ] パラメータを使用して、特定タイプの三角形のエッジを抽出します。
出力フィーチャには EdgeType という名前のフィールドが含まれます。このフィールドでは、整数値を使用して、各ラインが表すエッジのタイプを表します。
- 0 - 標準のエッジ、すなわち、特にハード エッジまたはソフト エッジとして定義されなかったエッジ。このエッジ タイプは、TIN データ ポイントの三角形分割によって生成されます。
- 1 - ソフト エッジ、すなわち、傾斜角の値の緩慢な変化を表すエッジ。
- 2 - ハード エッジ、すなわち、傾斜角の値の急激な変化を表すエッジ。
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。
| 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