Available with 3D Analyst license.
Triangulated irregular networks (TINs) represent continuous surfaces such as terrain elevation or temperature gradient. The surface is represented as a set of facets formed by connecting data points at nodes to create adjacent triangles. Typically, you display a TIN using color-shaded relief to depict elevation. Shaded relief simulates the sun's illumination of the earth's surface. Adding color to this lets you easily see the ridges, valleys, and hillsides, as well as their respective heights. Seeing the data this way can help explain why other map features are where they are. You can visualize a TIN in 2D using a Map view and in 3D using a Scene view in ArcGIS Pro.
See Change the symbology of a TIN for more information on modifying TIN symbology.
Create a new custom elevation surface from a TIN
The default ground elevation surface is predefined and cannot be deleted. Additionally, multiple elevation sources can be added to the ground, such as TINs or rasters. When adding a TIN to a scene, the TIN is added as a layer in the scene and as an elevation source to the ground surface. If no elevation sources are set, the ground is set to 0. To learn more about elevation surfaces in ArcGIS Pro, see: Elevation surfaces.
- In the Contents pane, right-click a scene, and click Properties to open the Properties dialog box.
- Click Elevation Surface.
- Click Add New Surface .
A new elevation surface is added to the scene. The name of the custom elevation surface is highlighted, and you can rename it.
- With the newly created surface selected, click Add an elevation source. You can then add the TIN as the elevation source.
- If you have more than one elevation source, you should define their order in the list of elevation sources for the elevation surface. Click the elevation source with the highest resolution, and move it to the top.
If your elevation surface does not match the units of the scene, for example, the elevation surface measures height in feet but your scene is actually in meters, you will need to set the elevation unit to fix the elevation data source so the horizontal (x, y) units and vertical (z) units match.