Oberflächenneigung (3D Analyst)

Zusammenfassung

Erstellt Polygon-Features aus den Dreiecksneigungswerten eines TIN- oder Terrain-Datasets.

Weitere Informationen zur Funktionsweise von "Oberflächenneigung"

Abbildung

Abbildung "Oberflächenneigung"

Verwendung

Syntax

SurfaceSlope_3d (in_surface, out_feature_class, {units}, {class_breaks_table}, {slope_field}, {z_factor}, {pyramid_level_resolution})
ParameterErläuterungDatentyp
in_surface

Das Eingabe-Terrain- oder TIN-Dataset.

Tin Layer; Terrain Layer
out_feature_class

The output feature class.

Feature Class
units
(optional)

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
(optional)

Eine Tabelle mit den Klassengrenzen zum Klassifizieren der Ausgabe-Features. Die erste Spalte dieser Tabelle gibt den Unterbrechungspunkt an, die zweite enthält den Klassifizierungscode.

Table
slope_field
(optional)

Das Feld mit den Neigungswerten.

String
z_factor
(optional)

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
(optional)

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

Codebeispiel

SurfaceSlope – Beispiel 1 (Python-Fenster)

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")
SurfaceSlope – Beispiel 2 (eigenständiges Skript)

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

Umgebungen

Verwandte Themen

Lizenzinformationen

ArcView: Erfordert 3D Analyst
ArcEditor: Erfordert 3D Analyst
ArcInfo: Erfordert 3D Analyst

7/10/2012