How to acces the geometry part and the attrubute part of an Object

Scripting
1

HI,

I am new to python scripting for Rhino. I want to implement a Quality Model Checker for CAD models based on SASIG standard. The main challenge is how I can get to the geometric data of the Rhino’s objects automatically without manually selection of the geometric components as curves, surfaces,…etc. I don’t know how to do that so any help will be highly appreciated.

Best Regards,

Ion

2

I am doing something similar, what kind of object do you want to get information on?
by geometric data, what do you mean?

-Eivind

3

HI,

It has been a while :)… but I need to get the topology of the model. Rhino used the boundary representation for the solids. I want to see if the solid is closed and to do some tests on the surface,curve and edge elements of the adjacent geometric elements.

Ion

4

Check this to see the Brep structure and how it is built up.

Then refer to this documentation on Brep
http://4.rhino3d.com/5/rhinocommon/html/T_Rhino_Geometry_Brep.htm

5

Thank you Menno…

Out of the topic, but I am in a time need :slight_smile: … Do you how to grab the output of the Rhino Commands into a string ? I can use the Clipboard, but not of the Rhino outputs is there. If I am looking for naked edges using ShowEdges command, I don’t get, by example, the number of the naked edges, which is displayed in the History window…

Ion

6

You shouldn’t rely on the text in the history window. Instead, on a Brep object try http://4.rhino3d.com/5/rhinocommon/html/M_Rhino_Geometry_Brep_DuplicateNakedEdgeCurves.htm or http://4.rhino3d.com/5/rhinocommon/html/M_Rhino_Geometry_Brep_DuplicateEdgeCurves_1.htm

7

Thank you Menno,

Ion