Zoom In

The button Zoom In enlarges the scale of the map where selected by the "Zoom In-Window".

When clicking the button, the mouse pointer becomes the shape of loup. With this loup, the wanted area can be selected by clicking on the map and drawing a frame. After this, the scale will be changed in ways that the drawn frame will now be at it's maximum size. The size always measured at the maximum extent, either it's in the vertical or in the horizontal direction. (This means that the Zoom will be small if the selected area is very narrow in the horizontal expansion, but almost as big as the window in its vertical extension.)