Geodesic dome extrusion trim

Hey guys.

I'm new to grasshopper. I've created a geodesic dome in grasshopper through the points which define the centre of each hexagon. I then used the facet dome to create the hexadome. I then extruded the surfaces a defined distance to the centre of the sphere. But I cant get ride of the over lapping of the solids on the inner side of the dome. I need the vertices of on the inner side of the dome to align to each other. Also is there a way to locate and group similar hexagons, or find a pattern in the variation of the sized of the hexagon. I've attached the rhino and grasshopper file

Attachments:

2.ghx, 548 KB
geodome.3dm, 1.4 MB

Replies to This Discussion

Permalink Reply by Chris Tietjen on October 22, 2011 at 12:18pm

Here's a solution to the first part of your question.

Chris

Attachments:

2Rev1.gh, 19 KB

Permalink Reply by Faraz on October 22, 2011 at 12:21pm

hey Chris thanks a lot. What version of grass hopper is this on. It wont open the file.

Permalink Reply by Chris Tietjen on October 22, 2011 at 1:15pm

Faraz,

Here's a solution for the second question but I didn't check it carefully. It may have redundancies and omissions. It groups faces by the same area. I didn't have time to unscramble it for clarity...but will do so later if it would be helpful.

I'm using 0.8.0050.

Chris

Attachments:

2Rev2.gh, 30 KB

Permalink Reply by Faraz on October 23, 2011 at 4:37am

Hey Chris thanks a lot. Both algorithms were extremely useful. I am having problem with the algorithm when i try to increase the frequency of point to facet. Any suggestions? also is it possible to add a number slider to the equation that is extruding the surfaces inwards?

Permalink Reply by Faraz on October 23, 2011 at 5:09am

also if i add any point to the equation it stops sorting the similar faces. why is that?

Permalink Reply by Chris Tietjen on October 23, 2011 at 8:30am

This should solve the problem of increasing the frequency and it provides a slider to change the shell thickness.

Chris

Attachments:

2Rev3.gh, 29 KB

Permalink Reply by Faraz on October 23, 2011 at 9:34am

it didnt solve the problem. Did u try it out on the new set of points?

Permalink Reply by Chris Tietjen on October 23, 2011 at 1:56pm

I can't get the definition to work with the entire sphere of higher frequency points. It does work if you only select a hemisphere or less of points. I don't know why it does this. It seems to be a limitation of the Facet Dome component.

Chris

Permalink Reply by Faraz on October 23, 2011 at 4:39am

here the higher frequency file

Attachments:

dome high frquency1.3dm, 626 KB

Permalink Reply by Faraz on October 23, 2011 at 5:54am

Chris the second equation doesn't seem to be working to well. some of the cells are being counted twice under different areas.

Permalink Reply by Chris Tietjen on October 23, 2011 at 8:32am

I noticed this but don't see why it's happening.

Chris

Permalink Reply by Anastasia on October 31, 2011 at 6:57am

Hi Faraz,

Really interested in having a look at your latest script but it wont allow me to open the file. Can you save it to version 0.8.004 it would be much appreciated.