Transform objects : mirror

Hi!
i am writing a special VB component and have difficulties on the tranformation of objetcs.
I want to mirror a surface.
So i create a mirror tranformation from the OnXform class. the I use 'Transform' to apply it to the surface (or the point). It works and send a true message but nothing is drawn. I would like to know how to draw this transformation !

thanks in advance

Dim xform As New OnXform ()
xform.Mirror(origin, normal)

surf.Transform(xform)

Replies to This Discussion

Permalink Reply by David Rutten on October 13, 2009 at 10:44am

Hi Chloe,

are you assignin the transformed surface/point to a Script output parameter?

If you are, does the tooltip for that output parameter at least claim there is geometry in there?

--
David Rutten
david@mcneel.com
Seattle, WA

Permalink Reply by chloe on October 13, 2009 at 11:56am

Hi,

I tried to assign an output parameter called " surfmir" like this :
surfmir = surf.Transform (xform)

but it is certainly not the good way...
How can I write it ?

thanks for your response,
chloé

PS:I am a young architect working on a thesis about a specific folded modular element (see on www.archiwaste.org), and I want to modelize it with grasshopper. So thank you very much for the answer...it will really helps me.

Permalink Reply by Suryansh Chandra on October 13, 2009 at 1:29pm

Hi chloe,

The output of *.transform is usually a boolean, which means it would simply return a true of false telling you if the transform was successful. This implies that if you assign an output parametre to it, it would only give you a boolean value, not the geometry.

If the output of your script node is called 'A' (default), all you need to do is:

surf.Transform (xform)
A = surf

That simply tells GH to provide the final 'surf' as the output of the node. If you have renamed the default output 'A' to something else, just make sure the same name is assigned to the script inside the node.

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