Gd-Arc demonstration
load_response proc setup {} { html "
A radius of 60, start angle of 45, and end angle of 180 works well...
Enter the radius (0 < 75):
Enter the start angle (in deg):
Enter the end angle (in deg)
(end angle > start angle):
" } proc redo {} { global response html "
HTML source
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GD source
" setup } if ![info exists response(mode)] { setup } else { redo }