Grasshopper

algorithmic modeling for Rhino

Automatic polysurface selection

Hello,

I have a drawing with some polysurfaces. Each polysurface has a name, so I can call, move and rotate them anyway I like, from Python.

However, when I use BooleanSplit (or BooleanDifference, to cut away some intersection between two objects), a new object is generated without a name.

Does anyone know how to call an object (or more specifically a polysurface) within box X1,Y1,Z1 and X2,Y2,Z2?

Or something similar to reselect an object?

Note that I don't want to use a mouse/pointer or click the object (because of the repetitive nature of the drawing, which is why I use Python).

Thanks in advance! :-)

Views: 624

Replies to This Discussion

Permalink Reply by Andrew Heumann on January 30, 2016 at 8:03am

Have you looked at the native Geometry Pipeline component? or the Dynamic Pipeline from Human? These will automatically retrieve geometry from a layer - avoiding any repetitive clicking.

Permalink Reply by WvdL on February 3, 2016 at 12:43am

Will dive into it.

Thanks for the reply!

Will keep you posted as to whether it works.

Permalink Reply by WvdL on February 15, 2016 at 3:05am

Geometry Pipeline component and dynamic pipeline are not available in Python and don't appear to work for objects other than pipelines.

But thanks for the suggestion!

Permalink Reply by WvdL on February 15, 2016 at 3:03am

Problem solved: use rs.BooleanDifference-function with delete_input-flag on True as such

newObjectToBeCutInNextIteration = rs.BooleanDifference(objectToBeCut,cutter,delete_input=True)

newCutter = addSphere([0,0,0]) #create new cutting object, becaus old one is deleted automatically by booleandifference-function

Note that this is a workaround unfortunately, but solves the problem for this time.

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