Get an origin point inside a Dynamic Component

dagobo

Hi all,

I want to get the coordinates of an origin point inside my Dynamic Component.

I created a Dynamic Component composed of three sub components.
Every sub component has an origin point and axis to get oriented in a different way.

I want to get the origin point position of one of the sub component in order to use it in my Ruby code.

I actually want to draw a line from this origin point to the point of the mouse's current location, inside of a onMouseMove method within my Tool Ruby code.

Does anybody know an answer ?

Thank you every one,

Marie

TIG

Try transformation origin - for the nested-dc's instance and the container-dc's instance...
Perhaps with adjustments for their relative placements too...
http://code.google.com/apis/sketchup/docs/ourdoc/transformation.html#origin

dagobo

But will the Point3D returned by the transformation method be the same point I decided for the origin of my sub component when I created it in SketchUp ? (in SketchUp : right-clic on the component, "Modify axes")

And if I named the sub component ("Light_Beam") of my component ("Light"), could I get directly the sub component from the selection ?

Instead of writing :

selection=Sketchup.active_model.selection
sub_component = selection[0].definition.entities[2].definition.instances[0]

to get my sub component, and then get the origin point with sub_component.transformation.origin

The [] method is said not to be very efficient in the Google SketchUp Ruby API. And I don't want to use the .each method as I want to get only one sub component I named.

dagobo

I tested it and it is actually the good origin point which is returned by the .origin method.
I need to call the method for the nested component as I decided another point for the container component's origin.

And I will use a for loop to get the right subcomponent (with the right name).

Thanks a lot !

Marie