Is there something wrong with method "transform"?

I want to find the projection of an object to the XYplane,so i write the VB script as follow:
Private Sub RunScript(ByVal x As Brep, ByRef A As Object)
Dim xf As transform = transform.PlanarProjection(plane.WorldXY)
x.Transform(xf)
A = x
End Sub

but i get the result as the Attach File shows

the projection of a sphere is still a sphere!!!!

so ,Is there something wrong with method "transform"?
or can anybody explain “how to use 'transform'”?

i'm using the GH0.80010

Attachments:

unname.jpg, 69 KB

Replies to This Discussion

Permalink Reply by David Rutten on November 17, 2011 at 8:22am

Hi CY,

A sphere is defined by a base plane and a radius, it cannot be squashed in one direction only. It also cannot be skewed, sheared or tapered. If you want to transform an object like a Sphere (or a Circle or an Arc or a SumSurface or a RevSurface etc.) using non-linear transform, then you need to convert your geometry into a more complex type that does support squishy transforms.

For example you could convert your Sphere to a NurbsSurface or a Brep.

David Rutten

david@mcneel.com

London, UK

Permalink Reply by CY.Wen on November 17, 2011 at 6:46pm