Creating a profile graph from line of sight results
When conducting a line of sight analysis interactively you can create a profile graph display of the results by following these steps.
- In ArcMap, click the Layer drop-down arrow on the 3D Analyst toolbar and click the surface that you want to analyze.
- Click the Create Line of Sight button on the 3D Analyst toolbar.
- Optionally, type an observer and target offset.
- Optionally, check the box to model curvature and refraction.
- First, click the surface at the observer location, then click the surface at the target location. A colored line appears indicating what is and what is not visible along the identified path from the observer location. For more information on the Create Line of Sight tool, see Creating a line of sight.
With the graphic or graphics selected, click the Profile Graph Tool button . The profile graph appears as a floating window on your map.
A visibility analysis along a roadway to a mountaintop is displayed below. The results indicate that the two locations along the roadway would see a tower located on a mountaintop. The two green dots at the target location indicate the roadway does have a clear line of sight to a tower, standing 10 meters high. The 3D line is symbolized with red to represent obstructed areas from the observer point and green to depict visible areas from the observer point. The profile graph displays the elevation change between the observer and target locations, as well as the visibility that exists from the roadway locations.
Use the Shift key to select more than one graphic.