How to work with zoom

The dialog windows for the digitalization of the raster data contain zoom, i.e. a cut where a zoomed picture of the bitmap is displayed. The point where the cursor is currently located is the center of the zoom. By moving the cursor on the bitmap, the program automatically displays the pertinent cut.

The zoom is adjustable from 1-8. To change the zoom, use the buttons <+> and <-> displayed under the zoom.<+> a <->, displayed under the zoom.

To use the zoom for a precise reading of the graphic coordinates, press the key <Ctrl>, on the keyboard, and the cursor will automatically move from the bitmap to the relevant point in the zoom (you can't move the cursor from the bitmap to the zoom, because moving the cursor also moves the cut displayed by the zoom). After pressing the key <Ctrl> the cursor moves back to the bitmap (to the position it was at on the zoom), and the bitmap window becomes active again.

Important

If you want to use the zoom using the <Ctrl>, key, the bitmap window must be active (the header must be highlighted), otherwise it will not react by pressing the <Ctrl> key.

If the window is not active, you can activate it by mouse-pointing anywhere at its desktop and pressing the left or right mouse button or using the menu Window.