Reply 20 of 31, by Silent Loon
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Many developers, using a standard drawing algorithm designed for squarish resolutions, doubtless forgot that the unique characteristics of resolution and monitor on 320x200 modes required a different algorithm.
Yes, this could explain why circles sometimes appear ovular when you use a display with standard 4:3 aspect ratio. So it depends on who "draw" the circle?
What I mean is this: The screenshot below is taken from Wing Commander Privateer (without aspect correction). As you can see the circles of the crosshair and the radar display are almost - well - circles, whereas the planet in the mfd left above is not, it is elliptical.
If you use dosbox' aspect correction(= 4:3) , the crosshair and the radar display are ovular, whereas the planet in the mfd is - a circle.
By the way: the screenshots used in the original manual of the game look like 320x200 without aspect correction, but this might be due to the publishing technique...