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| # Class STTopography Extends STTransformRaster Allow for the creation of slope, aspect, hillshade, and other topographic raster layers from a DEM. For information on how to create a hillshade see: http://edndoc.esri.com/arcobjects/9.2/NET/shared/geoprocessing/spatial_analyst_tools/how_hillshade_works.htm Copyright, SchoonerTurtles LLP, 2009 @author Jim Graham #### Static Functions
Returns | Function | Throws
--- | --- | ---
STRaster | Aspect(STRaster TheInput,double ZFactor) | Exception
STRaster | AspectEastWest(STRaster TheInput,double ZFactor) | Exception
STRaster | Hillshade(STRaster TheInputRaster,double Elevation, double Direction,double ZFactor,STColorRamp TheColorRamp) | Exception
STRaster | Slope(STRaster TheInput,double ZFactor) | Exception
## Static Functions ### STRaster Aspect(STRaster TheInput,double ZFactor) Exception Creates an raster from the input DEM raster Parameters: TheInputRaster - The DEM to use as the starting raster ZFactor - The cells size of the final raster in the horizonal ### STRaster AspectEastWest(STRaster TheInput,double ZFactor) Exception Creates an aspect raster from a DEM where each pixel represents how much a pixel's slope faces north vs. south. Parameters: TheInputRaster - The DEM to use as the starting raster ZFactor - The cells size of the final raster in the horizonal ### STRaster Hillshade(STRaster TheInputRaster,double Elevation, double Direction,double ZFactor,STColorRamp TheColorRamp) Exception Creates a colorized or grayscale hillshade from a DEM. This function works by creating a grayscale hillshade and then multiplying it by a colorized raster to create a hillshade in a single function. Parameters: TheInputRaster - The DEM to use as the starting raster Elevation - The elevation of the sun above the horizon given as ### STRaster Slope(STRaster TheInput,double ZFactor) Exception Creates a slope raster from the input DEM raster Parameters: TheInputRaster - The DEM to use as the starting raster ZFactor - Factor to expand the hillshade vertically. This also