Joining curves

Hi there,

I'm stuck on a C# issue:

1. I've got a bunch of curves stored in a list which I want to join with the Curve.JoinCurves() method

2. Now, the following works: A = Curve.JoinCurves(crvBits);

3. But I don't get to store the newly created polyline in an array of polylines

Any help? Cheers.

Replies to This Discussion

Permalink Reply by Riccardo La Magna on February 3, 2011 at 10:40am

To be a little bit more specific, the following code:

private void RunScript(List<Curve> x, ref object A)

{

   Polyline poly = new Polyline();
   poly = Curve.JoinCurves(x);
   A = poly;

}

returns the cast error: Cannot implicitly convert type 'Rhino.Geometry.Curve[]' to 'Rhino.Geometry.Polyline'

How do I workaround this?

Permalink Reply by Giulio Piacentino on February 3, 2011 at 11:29am

Hi Riccardo,

JoinCurves returns a curve array:

Curve[] polys = Curve.JoinCurves(x);

- Giulio
___________________

giulio@mcneel.com

McNeel Europe, Barcelona

Permalink Reply by Riccardo La Magna on February 3, 2011 at 11:51am

Thanks Giulio, this makes definitely much more sense. And it does make even more sense to use data trees with those bits of curves, something I hadn't absolutely thought about.

Cheers!

Permalink Reply by Digit on February 9, 2014 at 1:15am

Hi Giulio !

I have another question !

Why the return type should be " a curve array " ?

After joining curves at the rhino, only "one curve" is created.

please let me know ~ Thanks in advance :D

Permalink Reply by Hannes Löschke on February 9, 2014 at 1:53am

You may have four curves that join to two. Rhino needs to accommodate for that. So in general it returns a list of joined curves. If all input curves join into one, this list will have only one item.

Permalink Reply by Digit on February 9, 2014 at 2:01am

Thanks Hannes :D So helpful !

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