Example 1: Google Earth satellite photo of the Caspian Sea was copied
and pasted to dcsDigitiser, with a scale bar of 200 km being attached. The coast
line of the Caspian Sea was then manually clicked against the photo. When the
distance between the first-last points is close enough, dcsDigitiser
automatically calculates the area and perimeter of Caspian Sea, being around
367,153 km2 and 3,727 km, respectively (no curvature of the Earth ground surface
has been taken into consideration in this case).