[Question] on transformation.rotation

rvs1977

Hi all SUdudes...

I have a problem rotating a component instance around itself from a chosen inputpoint.
the component instance have been added, and then I want to rotate it:


......
ip.pick view, x, y
point = ip.position
vector = Geom;;Vector3d.new 0,0,1
angle = 2
t= Geom;;Transformation.rotation point, vector, angle
yv_instance.transformation = t

I expected it to rotate around the point with the vector and rotate it 2 radians. BUT instead of rotating it around itself, it rotates around the ip-point and 0,0,0... hmmm hope you understand.

the question is: How do I rotate a component around itself???

tnx in advance

TIG

The transformation
t=Geom::Transformation.rotation(point, Z_AXIS, angle)
[no need for another vector]
and its use
yv_instance.transform!(t)
should rotate the 'instance' around the Z_AXIS centered on the point...
The ' angle' should be in radians.
You set it to ' 2' ? To use degrees try 2.degrees ...

Note how I have enclosed he arguments inside ( ) - the recommended way - as 'un-parenthesized' arguments might get deprecated in a future release of Sketchup's Ruby...

rvs1977

Great, thanks TIG!

Now it works