Create dimension drivers on point on a curve?

[Robert]

Any suggestions for creating dimension drivers on a point on a oval curve? No matter how I dimension the point the dimensions are inactive?

[olaio]

Are you using the elipse command?
If yes, it is normal that you can not constrain the point with 2 dimensions!
You can constrain only one dimension and the other is the result.

Olaio

[Robert]

My picture was a bad example, but how would you precisely position a point on an oval curve?

[olaio]

Hi Robert,
i do not think that this is mathematical possible!
You can create a point on a curve driving one coordinate, not both!
The other possibilty is to create a curve drived by the points!
This is a different approach. First you create the points and after you can create a closed spline passing through the created points.
At this moment if you modify the points position you will update the spline position.
Hope this will help!
Olaio

[Todd]

yes so the only way I see to constrain a point on an ellipse is with sketch using relative point constraining it to coincident to ellipse and the use one dim constraint in x or y

[olaio]

Yes,
and it have to be created on a sketch!
It does not work with regular curves!

Olaio

[Robert]

Thanks guys, I always learn something new here.