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Comment by zhuoming on October 9, 2013 at 7:43pm


I want to get the result as drawing,how to do ?

Comment by Martin Siegrist on September 21, 2013 at 3:06am

Here's what you need to do:

1. in your spreadsheet, delete column B. It is empty and I guess not needed. This will make it easier to retrieve the right data afterwards. I made an example spreadsheet, since your file was not provided...

2. compute X values, marked blue in my spreadsheet. You can see how the first item is empty, it says <empty>. This needs to be culled, so cull index 0. Now you only need the first branch of that tree. That's done with aTree Branch component, you need to choose the first path {0;0}. This first path contains your X values

3. Do the same thing for Y values (orange), however flip the matrix first. Connect this branch to Y in the Pt component. You'll notice that by grafting Y in the point component you get a grid.

4. For the Z values, you need to cull the first row and column of your spreadsheet data. You see in my example that I culled item 0, flipped the matrix and culled again. 

5. I generated a mesh from points and mesh edges just to give an example....

Screenshots attached. 

Comment by OLu Fat on July 10, 2013 at 2:04pm


Im a beginner on rhino trying to create a 3D model to be exported to a CAD software. The challenge I am having is in processing the .txt file into a format usable by Rhino. I got some ideas online relating to importing .txt files as point clouds. It worked when i used simple XYZ points separated by commas (e.g




But the format of my .txt file is an array of X (vertical),Y(horizontal) and multiple Z values as shown in the attached image. Every time i import this file, I see nothing so i believe it has to do with the format of my .txt file. 

Does anyone have any advice on what to do? Thanks for your help

Comment by Onrender on June 27, 2013 at 7:38am

I am a beginner, and would like to ask if that possible to save GH data as an object file like a revit families and simplify GH definition into a small option panel and playing with my standalone GH model in Rhino?

Comment by sara ev on May 22, 2013 at 5:53am

is there any step by step grasshopper tutorial?

Comment by Vito Losavio on April 23, 2013 at 8:22am

On the web the first manual about PanelingTools for Grasshopper !

Rajaa Issa has released the first manual for "PanelingTools for Grasshopper Primer (PDF)" , which contains various exercises and the related sample files that can be downloaded separately, with the definitions in Grasshopper, "The Primer Examples and Tutorials" .

Here the page's link:

In rete il primo manuale su PanelingTools per Grasshopper (PDF)!!!

Pagina di riferimento:

Rajaa Issa, ha reso disponibile il primo manuale "PanelingTools for Grasshopper Primer (PDF)" , che raccoglie varie esercitazioni ed i relativi file di esempio, scaricabili a parte, con le definizioni in Grasshopper, "The Primer Examples and Tutorials" (l'inserimento obbligatorio della propria e-mail non comporta nessun verifica o obbligo).

Comment by Matt Sederberg on March 28, 2013 at 8:11am

Hi guys,

We're working on enhancing our T-Splines - Grasshopper integration, and exposing more T-Splines features. I'm interested to hear from anyone who is interested in this workflow - we'd like to learn more about what you'd like to do. Please feel free to post comments here or on our T-Splines forum -

Comment by ert tree on February 23, 2013 at 1:17am

i tried similar think in 2 dimensions (plane). I want to have predifined rest lenghts (imported from excel), knots in 2d are not connected. Should i do it with mesh or spend more time looking for errors.


Comment by ert tree on February 22, 2013 at 3:13pm

I was missing a flatten command in kangaroo :)

I uploaded cable to the googledocs, maybe someone is interested...

So how is with the wind?

Comment by ert tree on February 22, 2013 at 2:39pm


I am working on a hanging line from 2 anchored points. I did it in grasshopper, applied some kangaroo physics. A bit stuck on applying g-force on the cable.

Any suggestions?

I would also like to blow in the cable and strech it with the wind?

Does it have to be mesh to use wind force?


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