move the endpoint of the arc

[Anonymous]

i can pick an end point of an arc on the screen and then move it to a new
position,
if i want to do this by program, how should i do ?

[Anonymous]

You should used AcEdJig class. You can see an example how to use this class in elipsjig folder from Object Arx examples.

[Anonymous]

thank you, this is useful to me, but now my problem is that i have some
AcDbArc entities in my drawing,

and they should joint each other at their end points, with some problem,
they did not, so my task is to write

a program to have them joint. With AcDbLine element it is a simple task, i
just need to call the APIs like

AcDbLine::setStartPoint() or AcDbLine::setEndPoint(), but with AcDbArc,
i don't know how to do.

If i use three point (start, middle, end) of the Arc to get its radius,
center, start angle and end angle, then set

these to the arc, i am worry about that after doing this, the end points
will not equall to the end points before

exactly, i use these arcs to do polygon topology so it is important to me to
have these arcs joint each other,

how should i do?