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Arc Follow Example.mp4
@Anthony Apostolaros: As I feared, it's there but I didn't know about it. Thanks, Donald. Jeff: If you want, you can create a custom command that does that every time, so you can just keep pressing Enter or the space bar to repeat it and keep drawing tangent arcs, and not have to enter the Follow option each time. (defun c:AF () (command "arc" "f" "\\") )
(defun c:AF () (command "arc" "f" "\\") )
@Scott McKenzie: Cool, a few years back I wrote a little script that drew a continuous bunch of arcs, it could be modified to draw something like that, and would be a great use of the GRREAD function. if I have time this weekend I will write something up for you.
@Anthony Apostolaros: Outstanding, Roy! Your ArcFollow can follow from either the start point or end point of an entity, not just the end point as the normal Arc command with Follow option would do. Jeff, it may be even better than the tool shown in your video. In the video, it looked like you always have to select an entity to follow, even if you want to continue from the last arc you created. But with ArcFollow, if you press Enter or Space after selecting the entity to follow, but before picking the end point of the new arc, it continues drawing arcs that follow one another until another Enter. You don't have to keep executing the command or picking the object you want to follow.
@Resto Mara: Actually, Extend Curve in Rhino 3D is more than just using Arc for extending: