VectorDisplay ghpythonlib

Replies to This Discussion

Permalink Reply by djordje on March 3, 2015 at 8:48am

Hi Matteo,

Not all grasshopper native components are currently supported with ghpythonlib.components module.

Components like VectorDisplay, CustomPreview being one of those.

For any further questions, or new topics, please attach your .gh, .3dm files too.

Permalink Reply by Matteo Dini on March 3, 2015 at 9:39am

Thanks djordjie.
Dou you have any idea how I might wrtie a python script to show a vector preview?

thanks again

Permalink Reply by Andrew Heumann on March 3, 2015 at 12:57pm

custom drawing in a python component is no small feat since you can't override DrawViewportMeshes the way you can in a C# or VB.NET component. Mostapha's example here: http://www.grasshopper3d.com/forum/topics/rhino-display-customdispl... is the best I know of. 

Permalink Reply by djordje on March 3, 2015 at 1:12pm

Thanks for the info Andrew.
Here is with Mostapha's example.

Attachments:

• vectordisplay.gh, 6 KB

Permalink Reply by Giulio Piacentino on March 3, 2015 at 2:26pm

DrawViewportMeshes is available in 'Component compilation mode', in the Rhino WIP of the last few months.

Giulio
--
Giulio Piacentino
for Robert McNeel & Associates
giulio@mcneel.com

Permalink Reply by Anders Holden Deleuran on March 4, 2015 at 1:19am

Thanks for the update Giulio, sounds great! Think it's about time I go wring the arm(s) of our IT crowd and convince them to fork over a personal license instead of running on the zoo :)

Permalink Reply by Mostapha Sadeghipour Roudsari on March 4, 2015 at 5:26am

Hi Giulio, This can be very**10 useful for us! Do you have a working example?

Permalink Reply by Giulio Piacentino on March 17, 2015 at 11:03am

Yes, sure. See the attached (simple) example.

Giulio
--
Giulio Piacentino
for Robert McNeel & Associates
giulio@mcneel.com

Attachments:

• billboard.gh, 5 KB

Permalink Reply by Anders Holden Deleuran on March 3, 2015 at 1:36pm

Indeed, that solution still has "lingering" displays floating about though. In which case it is substantially simpler to implement David's CustomDisplay class (see attached). Just remember to toggle it back off again ;)

Attachments:

• vectordisplay_AHD.gh, 8 KB

Permalink Reply by djordje on March 3, 2015 at 1:41pm

Really nice!
Thanks Anders.

Permalink Reply by Matteo Dini on March 4, 2015 at 9:46am

Hi Anders thanks for your example. I'm trying to use the object's preview to display(or not) the vector) but I don't understand how I can do it. In the attached file I replaced the "toogle" statement with:

ghenv.Components.Hidden == False

but it works only if I re-run the script after changing the object's preview. I undertand that I have to be able to detecte the "changed events" for the component but I don't understand how. Do you have any idea?

_matteo

Attachments:

• vectordisplay_AHD_MD.gh, 8 KB

Permalink Reply by Matteo Dini on March 4, 2015 at 1:39am

Nice!!

thank you guys so much for your help