When establishing an observer location in an unfamiliar area, you may want to know if there is a clear line of sight between an observer and a target. You can use the Highest Points tool to find the highest points in your area, or start with data of your own that contains planned or existing observer locations. After you have decided on your observer locations, you can use the Linear Line of Sight tool to determine whether or not your sightlines are clear.

Determining Linear Line of Sight

1. Run the Linear Line of Sight model tool.
2. In the map, click where you would like to add your observer location, or click on a point you found using the Highest Points model tool.
3. To input your target locations, select the Targets feature set from the tool dialog and repeat the previous step.
4. Select your Input Elevation Surface.
5. Select an output name and geodatabase location.
6. Optional: Select an input obstructions feature class.

Create a Linear Line of Sight Profile Graph

1. Run the Attach Profile Graph to LLOS script tool.
2. Select the Input Line of Sight Features that you want to generate a profile graph for.
3. Use the Identify tool to view the Linear Line of Sight Profile Graph feature class attachment.

This workflow has guided you through the steps of determining linear line of sight between observer and target locations, and creating a profile graph for that linear line of sight.

For further information on processes used in this workflow:

• Running a model tool
• A quick tour of using Feature Set
• Editor toolbar
• Attributes window
• Identifying features
• Viewing feature class attachments