if distance from point to radius point = radius AND startangle <
pointangle < endangle (for counterclockwise arcs) then point lies on
arc.
test for CC or CCW arcs will be required.
HTH,
Jeff
"mgrigoriev" wrote in message
news:29349322.1076547291063.JavaMail.jive@jiveforum1.autodesk.com...
> How can I find out whether a point belongs to a line or not. Say, if I
want to find out whether a point lies on a line, I compare the length of
the line and the sum of the distances between the point and the start
and end points of the line. Can't think of any way to find that out for
an arc.
