Colors

Can someone explain to me how to use the gradient tools to colorize my grasshopper geometries. Specifically I Have a louver system that orients based on an attraction vector and I want to tell grasshopper "if a louver is between angle a and angle b then assign it this color" also possibly how to cull items in the same way based on a min or max value/angle, Thanks in advance.

Replies to This Discussion

Permalink Reply by Danny Boyes on July 13, 2011 at 8:33am

Solid colour can be assigned to surfaces using the Custom Preview component. If you want to apply a gradient then you can assign vertex colours to meshes. Some examples can be found in this post. But a search for "Gradient Colour" or Color should find you lots of examples of implementing the Gradient Component.

Permalink Reply by Michael Pryor on July 13, 2011 at 8:43am

I get the custom preview part, my issue is how do it separate a list or cull out based on angle, whould it be an f(x) function, this way to isolate certain angled louvers from others?

Permalink Reply by Danny Boyes on July 13, 2011 at 9:26am

Have a look at these attachments.

Attachments:

AngleGradients.ghx, 140 KB
AngleGradsGeom.3dm, 59 KB

Permalink Reply by Michael Pryor on July 13, 2011 at 9:57am

Thanks, also a bit of topic but for organization, where can I find the kind of "purple" panels to underlay over groups of components to label sections of my definition?

Permalink Reply by Danny Boyes on July 13, 2011 at 10:05am

Ctrl G for grouping

Permalink Reply by Michael Pryor on July 13, 2011 at 10:12am

amazing, Thnx

Permalink Reply by Michael Pryor on July 13, 2011 at 11:17am

For some reason there is an error, could it be the version i'm using. I have the most recent update.

Attachments:

error.PNG, 112 KB

Permalink Reply by Michael Pryor on July 13, 2011 at 11:19am

never mind, realized there was no A in vec2point

Permalink Reply by Michael Pryor on July 13, 2011 at 11:33am

got it thanks, here's a screenshot. Any idea now how to cull out fins based on there color value?

Permalink Reply by Michael Pryor on July 13, 2011 at 11:35am

Now how to cull based on color value?

Permalink Reply by Danny Boyes on July 13, 2011 at 12:38pm

You could use an includes component to test to see if falls within your parameters. Also there was a component missing because of your version is older. So I have replaced it with a similar result but the area component uses more CPU to process.

Attachments: