You can choose the thickness of the line connecting the intervisibility between two objects in STK. You can set this line thickness at the scenario level (for all intervisibility pairs) or on the Access panel when computing the intervisibility between the objects.
At the Scenario level:1. Open the Scenario Properties window and go to the 2D Graphics > Global Attributes page.
2. Under Access, choose the Line Width thickness you want and click OK to set this thickness as the default thickness for this scenario.
On the Access panel:1. Open the Access panel for the an object you wish to compute intervisibility for.
2. In the Graphics area, clear the Inherit Settings From Scenario check box.
3. Choose the Line Width in the Line Width box.
4. Click Compute to compute the Access.
Now your access lines between objects with intervisibility will be your desired thickness!
