filter selected according to shape

Replies to This Discussion

Permalink Reply by Mohamed Naeim on July 13, 2011 at 4:41am

is it possible to detect curvature (mean detect if there is a curved surface on the poly surface then filter the polysurfaces with the straight faces or to detect operation such as booleans and subtractions)

Permalink Reply by Danny Boyes on July 13, 2011 at 5:21am

Hi Mohamed,

 

Here's something you might be able to work with. It uses the ratio between the volume of the object and its bounding box (Block Coefficient) to sort the BReps into categories.

 

Attachments:

• BlockCoeffGeom.3dm, 795 KB
• BlockCoeff.ghx, 623 KB

Permalink Reply by Mohamed Naeim on July 13, 2011 at 7:05am

thanks danny very interesting , but what if the both shapes have the same bounding box but they are different from inside

 

i used (Brep Edges ) to calculate the number of interior edges

it works perfectly

Permalink Reply by Danny Boyes on July 13, 2011 at 7:33am

The ratio of Brep Volume and Bounding box volume would be different, so these two would be classed as different shapes. Is that what you are after?

 

PS the edges method is less demanding on the CPU 

Permalink Reply by Mohamed Naeim on July 14, 2011 at 12:57am

exactly, it take a lot of time