Aristas del TIN (3D Analyst)
Resumen
Crea entidades de línea 3D utilizando las aristas del triángulo de un dataset de red irregular de triángulos (TIN).
Ilustración
Uso
-
Utilice el parámetro Tipo de borde para extraer un tipo específico de borde del triángulo.
La entidad de salida contiene un campo denominado Tipo de borde que utiliza los valores de entero para representar el tipo de borde que representa cada línea:
- 0: Una borde regular o una que no se definió específicamente como un borde abrupto o uniforme. Este tipo de borde lo produce la triangulación de los puntos de datos TIN.
- 1: Un borde uniforme o uno que representa una transición gradual en valores de pendiente.
- 2: Un borde abrupto o uno que representa una transición más abrupta en valores de pendiente.
Sintaxis
TinEdge_3d (in_tin, out_feature_class, {edge_type})
Parámetro | Explicación | Tipo de datos |
in_tin |
The input TIN. | TIN Layer |
out_feature_class |
The output feature class. | Feature Class |
edge_type (Opcional) | El tipo de arista de triángulo que se extraerá.
| String |
Ejemplo de código
Ejemplo 1 de TinEdge (ventana de Python)
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')
Ejemplo 2 de TinEdge (secuencia de comandos independiente)
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")
Entornos
Espacio de trabajo actual, Espacio de trabajo temporal, Sistema de coordenadas de salida, Extensión, Transformaciones geográficas, Resolución XY, Tolerancia XY, Resolución Z, Tolerancia Z, Dominio Z de salida, Palabra clave CONFIG de salida, Auto ejecución, Cuadrícula espacial de salida 1, 2, 3, Dominio XY de salida
Temas relacionados
Información de licencia
ArcView: Requiere 3D Analyst
ArcEditor: Requiere 3D Analyst
ArcInfo: Requiere 3D Analyst
7/10/2012