v2.15.0 (2026-06-26)

Overview

Vite Horizon 2.15.0 adds a new Line of Sight analysis tool under Report Tools. It calculates the ground area visible from a single observer point — such as an eagle nest — using a digital elevation model, and draws the visible area on the map. This release also includes a batch of behind-the-scenes stability and performance improvements that landed across the preceding 2.14.x maintenance updates.

Breaking Changes

None in this release.

New Features and Improvements

New Tool — Line of Sight

Report Tools → Line of Sight computes the ground area within line of sight of a single observer point and renders it as a polygon on the map.

• Three ways to set the observer point: pick a location on the map, select from one of your saved point layers, or type easting/northing coordinates
• Adjustable parameters: observer height above ground, analysis radius, and cell size (detail level)
• Runs as an asynchronous job on the server, with real-time status, a full message log, and a cancel option
• Customisable colours: the observer marker and the visible-area result follow your Graphics Styles settings

The visible area is added to the map inside a "Line of Sight" group layer, and the map zooms to the result. See the full Line of Sight guide.

Under the Hood

Rolled-up 2.14.x maintenance improvements

Several user-visible fixes shipped in the 2.14.x updates leading up to this release:

• No more freezes on large result sets — filtering and Area Summary no longer lock up the page when working with thousands of features; heavy processing now runs in responsive batches with a progress indicator.
• Layer-list filter indicator — a filtered layer now shows a distinct teal marker on its row in the Layer Panel, so it's easy to see at a glance which layers have an active filter.
• Buffer "Apply" is now repeatable in the Feature Table and Area Summary tools — applying a buffer a second time, or to a newly selected target, works correctly instead of re-using the first shape.
• Consistent filtering — drawing a shape to filter or analyse features on a map service layer now correctly respects any active attribute filter on that layer.

Dependencies

The ArcGIS Maps SDK and Calcite Design System components were updated to their latest 5.1.x builds.