Cull edge points of a grid of varying dimensions

Replies to This Discussion

Permalink Reply by Caglar on January 3, 2011 at 7:52am

it's sort of a weird method but it works for orthogonal grids. if that's what you want.

 

Attachments:

• cull edges.ghx, 162 KB

Permalink Reply by Chris Tietjen on January 3, 2011 at 8:13am

Here's my take on it.

 

Chris

Attachments:

• CullGridEdge.ghx, 193 KB

Permalink Reply by Datum on January 3, 2011 at 8:26am

Chris,

 

Thanks a lot for the help this is most useful. How would I go about selecting the points that have not been culled (all the points other than the edge points)?

 

Michael

Permalink Reply by Chris Tietjen on January 3, 2011 at 2:10pm

 

Try this for the center.

 

Chris

Permalink Reply by Chris Tietjen on January 3, 2011 at 2:18pm

I have plus and minus components in series which you can see in the image at the top.  I eliminated the plus component in the actual def and adjusted the subtrahend in the minus component.

Chris

Attachments:

• CullGridCenter.ghx, 224 KB

Permalink Reply by Matt Gaydon on January 3, 2011 at 3:13pm

Hi Micheal

 

I See You have allready had a few replies but I use Pt grids quite a bit so thought I would see how simple I could make culling all the edge points.

Hope this Helps

Matt

 

 

Attachments:

• Cull Pt Grid Edges.ghx, 69 KB

Permalink Reply by Chris Tietjen on January 3, 2011 at 5:23pm

Matt-

Great to see a simpler solution.  I knew something would be possible using the Path mapper component but I don't quite get how to work with that yet.  In experimenting with your definition I'm wondering if you could explain what the graft option does within the item component.

Thanks.

Chris

Permalink Reply by Matt Gaydon on January 3, 2011 at 6:41pm

Hi Chris

 

The reason for the graft is so that each Path(Branch) collects all Indexes in the list from the lower series before moving onto the next branch to do them same.

 

Otherwise the first Path(Branch) picks the first index in the list and the second path the second index and so on.... Thus a diagonal set of points that may straighten along the top if the paths finsh before the indexes finshes.

 

Matt