Hi.

To clear confusion about panel scale:

the panel scale is an multiplikator.

The original bmap which is shown on your screen does have scale 1

if you want it double big set scale to 2
if you want it half, set scale to 0.5

so the scale is only an factor.

An example, you have an bmap with 10 X10 pixels.

if you set its scale (scalex and scaley) to 2 it will be displayed with 20 x20 pixels(2 times the height and width of the original)
scale 3 = 30 x30 pixels (3 times the height and width of original)
scale 0.5 = 5 x 5 pixels (half the height and width of the original)

Hope that helps

Greetings

Mike