Overview

Elevation can be changed while using the ruler in five ways:

1. Manually. Hit the specified hot key (default: '[' to increment and ']' to decrement).
2. Token. When hovering over a token with the ruler, the origin or destination elevation (as applicable) will update.
3. Elevated Vision. If the Elevated Vision module is present, it will use that elevation information. (Elevation Ruler v0.5+)
4. Enhanced Terrain Layer. If a terrain layer is present with a finite max elevation, that max elevation will be used for the elevation.
5. Levels. If the Levels module is present, the ruler will look for Levels-enabled tiles  and default to the bottom elevation of that tile. In Elevation Ruler v0.5+, it will also originate elevation at the bottom of the active layer if the Levels layers UI is active.

The distance calculation updates based on the distance measured, assuming a straight line in three dimensions between origin and destination, taking into account elevation change.

If you add a waypoint, elevation will be tracked at each waypoint.

If you choose to move the origin token (by hitting spacebar) after measuring, the token elevation will be updated along each waypoint.

Dependencies

• [libWrapper](https://github.com/ruipin/fvtt-lib-wrapper)
• [libRuler](https://github.com/caewok/fvtt-lib-ruler) (deprecated as of Foundry v10; no longer required)

(Elevation Ruler 0.4+ requires Foundry v9 because it replaces the DF Hotkeys dependency with the Foundry keybindings introduced in v9. )
(Elevation Ruler 0.5+ requires Foundry v10 due to improvements in the Foundry Ruler API.)

Modules that add functionality

- [Elevated Vision](https://github.com/caewok/fvtt-elevated-vision)
- *[Enhanced Terrain Layer](https://github.com/ironmonk88/enhanced-terrain-layer)
- [Levels](https://github.com/theripper93/Levels)
- [Wall Height](https://github.com/erithtotl/FVTT-Wall-Height)

*[Enhanced Terrain Layer](https://github.com/ironmonk88/enhanced-terrain-layer) has an [issue](https://github.com/ironmonk88/enhanced-terrain-layer/issues/98) in v10 that may need to be resolved before it will function with this module.