Underlay Panel

The underlay panel allows for several different kinds of images or mapping services to deliver contextual imagery easily and at scale.

Screenshot 2020-03-26 15.15.49


  • Address - enter an address or coordinates in the address bar
  • Aerial - toggles underlay to satellite imagery
  • Road - toggles underlay to road maps  
  • Opacity - slider allows the opacity to be increased or decreased of the underlay image
  • Add background image - launches a dialogue box to upload one of the supported file types: .png, .jpg, .jpeg, .gif, .bmp. The TestFit image loader will request a line of known distance in feet/meters to scale the image.


How to define the underlay location:

Type in the address or coordinates in the address bar and hit "enter" or select the search button.



How to switch between satellite and road maps:

Select "aerial" or "road" in the underlay panel.

Switch between aerial and road


How to adjust the opacity of the background map:

Left click and drag the opacity bar left and right

Change Opacity


How to add a background image:

Select 'add background image' 

In dialogue box select the image and click open.

Add a background image