Drag Gestures Reference
GeoWords uses modifier keys to switch between different drag behaviors. The gesture depends on which modifier keys are held and where you start the drag.
Gesture Table
| Modifier | Click Target | Gesture | Description |
|---|---|---|---|
| Plain drag | Any cell | Paint | Start a fresh selection, accumulating adjacent cells |
| Ctrl+drag | First selected | Prepend | Extend selection backward from the start |
| Ctrl+drag | Last selected | Append | Extend selection forward from the end |
| Ctrl+drag | Middle selected | Splice | Insert new cells after the anchor position |
| Shift+drag | Selected cell | Delete | Remove dragged-over cells from the selection |
| Shift+Ctrl+drag | Any cell | Great Circle | Select tiles along a great circle arc between anchor and cursor |
| Alt+drag | Any cell | Halo | Select a ring of tiles at BFS distance N from center |
| Background click | — | Orbit | Rotate the camera around the hexasphere |
Notes
- Paint is the default gesture — just click and drag without holding any modifier.
- Prepend and Append both use Ctrl+drag, but the behavior depends on whether you start from the first or last selected tile.
- Great Circle creates an arc selection that can form a closed loop, useful for rotation actions.
- Halo selects concentric rings, also useful for loop-based actions.
- Background click (clicking outside the hexasphere) always orbits the camera, regardless of modifiers. See Camera Controls.
- Option+drag (Alt+drag) on the hexasphere itself also orbits the camera, overriding the Halo gesture.