GeoTIFF Overlay: Difference between revisions

Revision as of 09:56, 13 October 2026

A GeoTIFF Overlay, where the data of a GeoTIFF is displayed.

The GeoTIFF Overlay is a Grid overlay which displays the values of a selected GeoTIFF in the project map. It is commonly used to display raster data imported into the Project from outside the Tygron Platform.

Additional information displayed in hover panel

Clicking a location on the GeoTIFF Overlay map displays additional information alongside the grid cell's value. That value will be an interpolation, determined by the translation between the source file's resolution and the grid cell size.

GeoTIFF sources

The GeoTIFF Overlay displays GeoTIFFs uploaded to the Project as assets, with data stored as a GeoTIFF item. Any number of GeoTIFFs can be added to a GeoTIFF Overlay, with each GeoTIFF defining an individual timeframe in the GeoTIFF Overlay.

Color RGB

By default, the first band (or channel) is selected, producing a 32-bit output such as a height map.

It is however also possible to select a different band via the BAND attribute. This way you can also load in (Aerial^[1]) color images. Start by creating 3 GeoTIFF Overlays for the R channel (BAND=0), G channel (BAND=1) and B channel (BAND=2), then combine these in a Combo Overlay via the COLOR(R,G,B) formula. The result will show a color image.

Icon	Attribute	Unit	Range	Description	Default value
	BAND	number	0 to 4	Select a specific band in the GeoTIFF	0 (first band)
	ITERATION_ACTIVE	number	-1 to 1000	Determines in which iteration the overlay will be calculated	-1 (all iterations)
File:Skip nodata.png	SKIP_NO_DATA	boolean		If set to 1, NO_DATA values are ignored when updating grid overlay contents from model results.	0 (ignored)
	GPU_CLUSTER_INDEX	number	-1 to inf	Select a specific GPU cluster to run the grid overlay on.	-1 (ignored, select best available)