Speedtape Gauge.

[Guest dolb]

Hey,Something I havn't been able to 'get' is a speedtape gauge, I've tried looking at a few (Including Default 747), But I just don't see the relationship of the Axis and where the nonlinitary table fits in.For example It may say Value 0 position is something like 534 X 786 However when looking at the bitmap and finding this position it is no where '0'.Can anyone give some insight on how it works and the basic methods of constructing one?Currently I have my speedtape bitmap and Mask set up, I just can't get anything after that :(thanks

[pve 0]

Hey Here is a cllp from a working gauge: (middle value 640 kts. @ 735 pixels) (A:Airspeed select indicated or true, knots) Easy!