Get object color

Replies to This Discussion

Permalink Reply by Giulio Piacentino on July 8, 2015 at 3:31am

Hi E

GH1 has no support for object attributes, and as such it is not possible to associate a color with an object in the SDK. You can use functions that create colors, but binding them with objects would not produce any effect. For this reason, they are disabled at the moment.

When Grasshopper (maybe GH2) will support attributes, these functions will be activated.

Does it help?

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

Permalink Reply by Arend on July 8, 2015 at 4:05am

It's a good idea to check out http://www.grasshopper3d.com/forum/topics/how-to-get-help-when-you-...

If you post the code (what did you do), you can probably get some help.

Permalink Reply by Ezhil Vignesh on July 8, 2015 at 10:59am

hello Giulio / Arend

Thanks for your reply Giulio, Looking forward for the future release.

I got a help from my friend here to make this python script. Using human plugin to get attribute-color and sort object accordingly. its successful in a way.

Idea was not to feed color as input,. instead, get list sorted and exporting as tree. by this not getting restricting with Input colors. (refer to image)

Also, if you have other suggestion, I am welcome to know.

Regards

Attachments:

• color group.gh, 10 KB
• Capture.JPG, 111 KB
• color group.3dm, 151 KB

Permalink Reply by Ezhil Vignesh on July 10, 2015 at 8:24am

Can anyone help me with this please?  instead of feeding - input color reference to sort list. Can i get list sort according color list ?

Regards

Permalink Reply by ng5 Alex on July 10, 2015 at 8:41am

what is the rule of sorting? from darker to brighter? or else

you could use the rgb values of the color list and sort them all three according to 0-255 domain.

cheers

alex

Permalink Reply by Pieter Segeren on July 10, 2015 at 9:03am

Hi Ezhil, how about this: (you'll need Andrew Heumann's TreeFrog plugin)

Attachments:

• colorgroup_PSG.gh, 15 KB

Permalink Reply by Ezhil Vignesh on July 10, 2015 at 10:39am

Thanks Alex and Pieter for your input.

Pieter, It serves my issue well. thanks.

Permalink Reply by Pieter Segeren on July 12, 2015 at 8:41am

Hmm, so my last reply was past my bedtime and waaay off, thusly that I'll remove it...
Here's what I should have said: You could also look into the ColorTranslator class.

Attachments:

• RGBToInt_PSG.gh, 20 KB

Permalink Reply by Ezhil Vignesh on July 14, 2015 at 5:31am

I wasn't aware of RGB color multiplication. Thanks for your input Pieter, it helped a lot.

Permalink Reply by Nicolas Senemo on April 28, 2016 at 4:32am

Very useful!

Thanks