Face selection


#1

Hi,

How I can automatically select the face on the loft form without use the “Select face” node?

I want to quadrify the mesh bu
t the “Quad point on face” accept only faces and not loft form, so I have to manually select the face generated by the loft operation

quad

 


#2

One approach, assuming all the normals point in generally the same direction, might be to generate a UV grid on the faces in the list (UV and XYZ Grid From Face) and then filter by normals that point in a direction. If, for example, all the faces you need to select are pointing up you can grab justs the Z component of the normals (XYZ Z) and compare it with an X>0 formula.


#3

You could use Element Geometry Objects and Explode:

getfacefromgeometry


#4

cool!

Thanks Andreas, your solution works better.

Cheers


#5

This method assumes the first item in the lists of faces is the one on top… is that always the case? What if you have multiple n faces pointing up? Are they the first “n” faces in the list?


#6

No, I don’t think that that’s always the case - it’s definitely not a universal solution. But for the form Cesare generated it works since that form is a surface and will only consist of one geometry object when you explode it.


#7

Yes…correct