XYZ & RGB into Colored Mesh

Hello everyone,

I am trying to create a formula in GH that would translate XYZ and RGB values into a colored flat mesh that would create a sort of image. (reverse of Image Sampler?)
Would I use the Mesh Spray component?

Also how should I combine the 2 sets into one that represents all: XYZRGB values for each point as a single set.

1. XYZ + 1. RGB = 1. XYZRGB

2. XYZ + 2. RGB = 2. XYZRGB

etc.

Thank you very much for your help.
Still learning!

Replies to This Discussion

Permalink Reply by David Rutten on June 15, 2016 at 1:48pm

Hi PJ,

[Mesh Spray] is for when you only have a few points of interest and want to interpolate the colour of the mesh in between. If you want to set every single vertex, you're better off using the [Mesh Colours]. It takes a single mesh and a list of colour values, one for each vertex (well actually it will cycle the colour list, but you want to provide one colour per vertex).

If you want to make an image (ie. an actual bitmap) by setting pixels, there are more efficient ways of achieving that, although that will require custom scripting and you won't be able to preview the data in GH or Rhino.

Finally, if you want to format a bunch of data into a comma separated list or some other kind of template, your best bet is usually the [Format] component. You'll need to increase the number of inputs to cater for all your data (6 in your case), decompose the points into XYZ values and decompose the colours into RGB values. Then you plug the x, y and z values into the 0, 1 and 2 inputs respectively, and the r, g and b values into 3, 4 and 5. Then the format you'll need will be something like:

{0}, {1}, {2}, {3}, {4}, {5}

Or, if you want to display all point coordinates with exact three decimals:

{0:0.000}, {1:0.000}, {2:0.000}, {3}, {4}, {5}

Or if you want to use semicolons to separate the point values from the colour values:

{0}, {1}, {2}; {3}, {4}, {5}

etc. etc.

Permalink Reply by PJ on June 15, 2016 at 2:56pm