Visibility Analysis

High-performance Visibility Calculations

Carmenta’s sophisticated visibility analysis allows you to perform high-performance intervisibility calculations in both 2D maps and 3D urban environments. The line-of-sight calculation uses elevation data to determine the regions with a clear line-of-sight to an observer’s position. The calculation is extremely fast and designed to be performed on the fly for moving objects.

The result is a set of gridded values that indicate the height at which an object must be to be seen from a given position. This can be used to create a color-coded display of the results. The results can also be intersected and displayed in a vertical profile.

Volumetric Line-of-Sight

The volumetric line of sight functionality makes it possible to determine the 3D volume that a sensor covers. Such volumes can be merged into a combined volume representing the airspace covered by any number of observers. This is especially useful in a C-UAS scenario.


Custom Propagation

It is also possible to replace the standard propagation model of the visibility calculation with your own custom propagation calculation. The custom code only needs to handle the propagation along a vertical terrain profile from the observer – Carmenta’s optimized algorithm takes care of the rest.

Use cases for custom propagation include ballistic calculations and radio propagation algorithms.

Line-of-Sight in 3D City Environments

In 3D, line-of-sight analysis can be performed directly on the ground meshes loaded into the view. This provides a very accurate result, especially when used with detailed 3D city models.

Visibility Index

The visibility index calculation quickly determines how much of a given target area is visible from the surrounding terrain. It can help you find optimal surveillance spots, as well as areas where you are hidden from the enemy’s view.

Additional Features

A dedicated component provides high performance intra-visibility calculation between multiple moving objects; particularly useful for target tracking.

Many configurable sensor parameters, such as lobe size, maximum range, and refraction, mean that the calculation can also be used to determine line-of-sight for conventional or phased array radar systems.

Try for free

Request a Trial

Are you ready to see how our products can transform your work? Request a free trial today and explore the full potential of our geospatial technology.


  • Our free trial includes 30 days unlimited access.
  • Please specify which product/products you are interested in.
  • Fill out the form, and one of our representatives will contact you shortly with access details.