$ystop  = int($xstop + $tick_length*sin($drawn_angle*$deg2rad));

[download]
Ermm - shouldn't that be $ystart instead of $xstop?

As an aside, 3.1417 is not as near an approximation to PI (3.14159...) as 3.1416 is :)

Cheers, Ben.

In reply to Re: Drawing arcs with Tk and labeling them, problems with the math? by benn
in thread Drawing arcs with Tk and labeling them, problems with the math? by Anonymous Monk

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