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Rotate a circle and set a point on the target. does not work properly
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c'=rotate(c,alpha)
p=Point(c')
let alpha= alpha+90°
>p does not follow the angle!
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When P is created with the command P=Point(c') then ggb set the Point to the closest Point of c' to origine. Exception: If Center(c') == origine then P is set to the rotated angle of c'
If the created point P is set/moved to any point on c' and then the angle change, then P rotate relative syncron with the angle.

Tested in ggb 5.0.592 and ggb 6.0.692 WEB
I cant see any bug.
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Describe what you want to achieve, there is probably a solution to it.
.
Note:
If it is not necessary that P can be moved manually (is not a free point), then you can use
Q=Point(d',0.75) and d'=Rotate(d,<alpha>,Midpoint(d))
Where 0.75 is the path parameter at clock 12:00
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