Setting image size and scale

Digital map can be displayed in various scales. The current scale of the image is displayed in the bottom part of the program window.

However, the visible size of objects, distance between them, height of letters etc. can not correspond to the paper image of a map of the same scale. At display of a map on different monitors this discrepancy will change.

It occurs because in Windows system there are no means of determining the physical size of a screen pixel, and for printers such possibility is available.

Therefore, in the system of Panorama 11 the dialog of Screen options is provided, in which it is possible to enter the diagonal screen size in inches (approximately on 1,5 inches less than passport value) and the image zoom factor in percentage. The zooming makes a map more visible and allows to compensate lower resolution of the monitor, but garbles visible scale.

If the size of a screen diagonal is specified correctly and the zoom factor is equal 100 %, then the image on the screen is built with accuracy of half of a screen point size (pixel). The sizes of conventional symbols will strictly conform to their description (height of letters of titles, the sizes of vector icons, etc.) when the displaying scale is equal to initial scale of a map (specified in the passport). At changing the scale of display the sizes of conventional symbols also will change (with backlog at increase in the sizes).

SETTING OF PARAMETERS OF DISPLAYING A MAP DOES NOT INFLUENCE CORRECTNESS OF DEFINITION OF COORDINATES, CALCULATION OF LENGTHS, THE AREAS, DISTANCES, etc.