Draw Arc Problem

[Joe_John]

I'm trying to draw an arc from my first point to my second point from a center point. I've attached the vi that I have been working with. What I need it to do is draw an arc from my start point to my end point in a counter clockwise direction. Can someone help me with this one?

[Joe_John]

forgot the attachment!

[Jason_D]

Joe John,

Have you tried using the actual Draw Arc.VI included on the tools pallette at Programming»Graphics & Sound»Picture Functions?  What are you trying to draw this arc to?

[altenbach]

Your problem seems overdetermined, unless I don't understand your definition of arc. Can you show a drawing with the start-, center-, end- points in relation to the desired arc?

For example shouldn't the start-center distance be equal to the end-center distance?

Your default data have the end and center at the same position, giving you an arc of radius zero. You get an arc by providing better inputs.

[Darin.K]

I considered it underdetermined, I could draw multiple arcs which I consider to be segments of an ellipse.  I can vary the focal distance and inclination of the major axis.

[srikrishnaNF]

hi joe,

  TO get the arc in counter clock wise,wire a negative arc length to draw arc picture vi.

Thanks and regards,

srikrishnaNF

[Boone301]

Hi John,

Maybe it is useful for you: 

http://forums.ni.com/t5/LabVIEW/Draw-a-arc-with-3-points/m-p/3007129/highlight/true#M860518

Boone