Q: How can I create a DEM from contour lines?
Answer Depending on what you want to use the resulting raster for, there are a few alternatives. It is possible to generate a DEM from a contour line shapefile, though some methods will tend to have “stair-step” artifacts and lower spatial resolution than the original data. Adding data from other sources and pre-processing your contours can reduce these problems. You can use the contour lines as input to build a TIN, and then export the TIN to raster. See these ESRI Webhelp pages: http://resources.arcgis.com/en/help/main/10.2/index.html#/What_is_a_TIN_surface/006000000001000000/ http://resources.arcgis.com/en/help/main/10.2/index.html#/Creating_TIN_surfaces_from_vector_data/006000000002000000/ http://resources.arcgis.com/en/help/main/10.2/index.html#/Fundamentals_of_editing_TIN_surfaces/006000000004000000/ If you have the 3D Analyst extension use the “Topo” tool. It is designed […]
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