Region Manager

The Computational Region panel controls the GRASS region — the bounding box and resolution used by all raster processing.

Reading the current region

Click ↻ Read current region to fetch and display the current region values from the active GRASS environment:

• North / South / East / West bounds
• Rows / Columns
• Resolution (EW and NS)

Setting the region

Action	Description
Set to default region	Reset to the GRASS location default
Save as default region	Overwrite the location default with the current region
Save named	Save the current region under a custom name
Load named	Restore a previously saved named region
Set region to raster(s)	Match the region to one or more raster maps (hold Ctrl/⌘ for multi-select)
Draw BBOX on map	Interactively draw the region as a bounding box on the Cesium globe

Drawing the region on the map

1. Click Draw BBOX on map — the cursor changes to crosshair mode
2. Click and drag on the globe to define the rectangle
3. The region is set and the rectangle overlay remains visible

tip

After drawing a region, click ↻ Read current region to confirm the coordinates match your selection.

Zooming to the region

Use the ⊕ toolbar button to fly the Cesium camera to the current computational region extent.