WMS:Introduction to TINs

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TINs are formed by connecting a set of xyz points (scattered or gridded) with edges to form a network of triangles. Points used to create TINs can be obtained by digitizing a contour map (or a scanned image inside of WMS), by generated automatically from feature arcs and polygons, or by using DEMs or existing TINs as background elevation maps. TINs can be contoured, displayed in oblique view with mapped images and hidden surfaces removed, and several other display options that can be set to visualize and understand the terrain surface better. TINs are used for basin delineation and drainage analysis. Basin areas and several other geometric parameters can be computed and combined with hydrologic analyses.

The Project Explorer can be used to set the name of the TIN by either double-clicking on the TIN name, or by right-clicking on the name and choosing Rename. The name of the TIN is always displayed along with the TIN icon when using the Select TIN tool.


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