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AspectSlope

汇总

用于创建可同时显示表面坡向和坡度的栅格对象。

讨论

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 the following purposes:

  • Convert the elevation units (such as meters or feet) to the horizontal coordinate units of the dataset, which may be feet, meters, or degrees.

  • 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.sa 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.sa import *

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

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

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

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