Panning and Zooming

When the Panning & Zooming checkbox is selected, map panning takes priority. Scrolling the mouse wheel moves the map up or down. Moving the map left or right is performed by holding the Shift key and scrolling the wheel. Map zooming is performed by holding the Ctrl key and scrolling the wheel.

When the Zooming Only checkbox is selected, zooming in and out is performed by scrolling the mouse wheel. Map panning is performed by dragging with the left mouse button pressed. In cases where the left mouse button is used for placing contour points, map panning is performed by clicking and dragging the mouse wheel.