![]() Even if the computer used for modeling is sufficiently robust to render a "Making Data More Manageable." This article explains how to create a custom theme thatĬan speed navigation and improve refresh rates. Steps for reducing the size of the area modeled by clipping the contour line theme are described in the accompanying article, He gives additional instructions on how to produceĪ three-dimensional model by draping and modeling two-dimensional With the contour line theme, a triangulated irregular network (TIN) model can be built. Pentium-class PC with 64 MB RAM suggested.Ĭompute an attractive hillshaded map, and create a contour line theme. Using ArcView Spatial Analyst, the author tells how to output a grid theme that can be used to Perform two-dimensional and three-dimensional modeling in ArcView GIS with the ArcView Spatial Analyst and ArcView Editor's Note: This article describes how to use sample 1:24,000-scale 7.5' digital elevation model (DEM) data files to
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