Ellipse

[Cez]

another question: P

it is possible that AutoCAD makes an ellipse on the basis of 2 contraint parameter (Length x Width)

thanks!!

[Anonymous]

I'm trying to constrain an ellipse arc and it doesn't appear to be possible. Just bumped my thread if you want to subscribe to the sounds of silence.

[Cez]

thanks for trying!!! hopefully someone else nows how !

[terence]

make a rectangle, click to highlight, right click for menu-select polyline then spline fit

hope that's what you want...

[Cez]

Not really! sorry,

I find it strange that theres a diverence between the side of the arc and the original rectangel, and he is not making a ellipse, it is rounder.
I also can not define the WxL with a parameter.

Thanks for your help

[Libbya]

Attached might be what you are looking for.  It does not use constraints, though, but rather dynamic parameters/actions.

[Cez]

I think this is the solution and will try it too fixenik in my block ... you keep up to date.

good work and thank you for your work.

[Cez]

Is it also possible to do this with constrains?The width and height is a result of a calculation in my block and this is the only possible with constrains.

If i only know how to get a quarter of the ellipse with the "3 points" to attatch a stretch action.

I hope you can help me.

[Libbya]

Can you post the block?  

[Charles_Shade]

To your point all Circles can be Ellipses  but all Ellipses are not circles; just think that the Major and Minor Radii are the same hence a circle.

But even though to the eye it may look Circular if the Major axis is X and the Minor Axis is X-.0001 (whatever) then technically it is an ellipse.