Pendiente de superficie (3D Analyst)

Resumen

Crea entidades de polígono de los valores de pendiente del triángulo de una TIN o dataset de terreno.

Más información sobre cómo funciona Pendiente de superficie

Ilustración

Surface Slope illustration

Uso

Sintaxis

SurfaceSlope_3d (in_surface, out_feature_class, {units}, {class_breaks_table}, {slope_field}, {z_factor}, {pyramid_level_resolution})
ParámetroExplicaciónTipo de datos
in_surface

El dataset de TIN o de terreno de entrada.

Tin Layer; Terrain Layer
out_feature_class

The output feature class.

Feature Class
units
(Opcional)

The units of measure to be used in calculating slope.

  • PERCENTSlope is expressed as a percentage value. This is the default.
  • DEGREESlope is expressed as the angle of inclination from a horizontal plane.
String
class_breaks_table
(Opcional)

Una tabla que contiene los cortes de clasificación que se utilizarán para clasificar las entidades de salida. La primera columna de esta tabla indicará el punto de corte, mientras que la segunda proporcionará el código de clasificación.

Table
slope_field
(Opcional)

El campo que contiene los valores de pendiente.

String
z_factor
(Opcional)

The factor by which elevation values will be multiplied. This is typically used to convert Z linear units that match those of the XY linear units. The default is 1, which leaves elevation values unchanged.

Double
pyramid_level_resolution
(Opcional)

The z-tolerance or window size resolution of the terrain pyramid level that will be used by this tool. The default is 0, or full resolution.

Double

Ejemplo de código

Ejemplo 1 de SurfaceSlope (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.SurfaceSlope_3d("sample.gdb/featuredataset/terrain", "s_slope.shp", "PERCENT")
Ejemplo 2 de SurfaceSlope (secuencia de comandos independiente)

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

'''****************************************************************************
Name: SurfaceSlope Example
Description: This script demonstrates how to use the 
             SurfaceAspect and SurfaceSlope tools to generate a polygon
             that contains the intersection of both 
****************************************************************************'''

# Import system modules
import arcpy
from arcpy import env

# Obtain a license for the ArcGIS 3D Analyst extension
arcpy.CheckOutExtension("3D")

# Set environment settings
env.workspace = "C:/data"

try:
    # List all TINs in workspace
    listTINs = arcpy.ListDatasets("","TIN")
    # Determine whether the list contains any TINs
    if len(listTINs) > 0:
        for dataset in listTINs:
            print dataset
            # Set Local Variables
            aspect = arcpy.CreateUniqueName("Aspect.shp")
            slope = arcpy.CreateUniqueName("Slope.shp")
            outFC = dataset + "_Aspect_Slope.shp"
            #Execute SurfaceAspect
            arcpy.SurfaceAspect_3d(dataset, aspect)
            #Execute SurfaceSlope
            arcpy.SurfaceSlope_3d(dataset, slope)
            #Execute SurfaceSlope
            print "Starting Intersect"
            arcpy.Intersect_analysis(aspect + " #;" + slope + " #", outFC, "ALL")
            print "Completed intersect for " + dataset
            del aspect, slope, outFC
    else:
        print "There are no TINs in the " + env.workspace + " directory."
except:
    # Returns any other error messages
    print arcpy.GetMessages(2)

del arcpy, listTINs

Entornos

Temas relacionados

Información de licencia

ArcView: Requiere 3D Analyst
ArcEditor: Requiere 3D Analyst
ArcInfo: Requiere 3D Analyst

7/10/2012