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
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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
