AspectSlope

摘要

用于创建可同时显示表面坡向和坡度的栅格对象。

说明

有关此函数工作原理的详细信息,请参阅坡向坡度栅格函数。

栅格对象所引用的栅格数据集是临时性的。 要将其设置为永久,可以调用栅格对象的 save 方法。

语法

AspectSlope (raster, {z_factor})
参数说明数据类型
raster

The input elevation raster.

Raster
z_factor

The z-factor is a scaling factor used to convert the elevation values for two purposes:

  • To convert the elevation units (such as meters or feet) to the horizontal coordinate units of the dataset, which may be feet, meters, or degrees.
  • To add vertical exaggeration for visual effect.

If the x,y units and z units are in the same units of measure, the z-factor should be set to 1. The z-values of the input surface are multiplied by the z-factor when calculating the final output surface.

(默认值为 1)

Double
返回值
数据类型说明
Raster

输出栅格。

代码示例

AspectSlope 示例 1

本示例将计算栅格的坡向和坡度。

from arcpy.ia import *
out_aspectslope_raster = AspectSlope("elevation.tif", 3)
out_aspectslope_raster.save("C:/arcpyExamples/outputs/aspectslope.tif")
AspectSlope 示例 2

本示例将计算栅格的坡向和坡度。

# Import the system modules
import arcpy
from arcpy.ia import *

# Set the analysis environments
arcpy.env.workspace = "C:/arcpyExamples/data"

# Set the local variables
in_raster = "elevation.tif"

# Execute the AspectSlope function
out_aspectslope_raster = AspectSlope(in_raster, 3)

# Save the output
out_aspectslope_raster.save("C:/arcpyExamples/outputs/aspectslope.tif")