[PYTHON IN ARC GIS #9]Terrain Analysis | Hillshade | Slope | Aspect | Spatial Analyst
This video explains how to get hillshade, slope, aspect from a raster (Digital Elevation Model) using python script in arcgis (Arcpy), change color of map for proper visualization by classifying, save the file.
Steps:
Import Raster file in Arc GIS
sa in Arcpy means spatial analyst
Ensure that spatial analyst is enabled…
Customize | Extension...| Check on the spatial analyst
Slope:
Identifies the slope (gradient, or rate of maximum change in z-value) from each cell of a raster surface.
Aspect:
Direction of slope i.e. towards which direction (N,E,S,W,NE,SE,NW,SW), the slope is facing.
Hillshade:
The Hillshade tool creates a shaded relief raster from a raster.
Learn about slope:
http://desktop.arcgis.com/en/arcmap/1...
Learn about aspect:
http://desktop.arcgis.com/en/arcmap/1...
Learn about Hillshade:
http://desktop.arcgis.com/en/arcmap/1...
Open Python console and write code
Slope: Only enter raster file. Other options are not compulsory fields so leave as they are…slope varies from 0 to 90,
Then save the file to the required location.
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