legend question

Does anyone know how to create a simple legend based on this algorithm used to create the following image? The color gradient goes from purple to red in the z direction, and colors points (faces) according to their location in the z direction from the lowest z value (purple) to the highest z value (red). I just want simple legend that shows a scale from purple to red in mm (also showing the values where other colors appear). I tried using the legend that comes with grasshopper, but it has a 4 color maximum, and I tried using ladybug but have had no luck using their legend. I am not sure the ladybug legend is compatible with regular grasshopper components of this algorithm. New user to grasshopper but very impressed with the software so far! Any help is greatly appreciated!

Thanks,

Ron

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Comment by Ron Perrone on September 21, 2016 at 1:18pm: Hey Pieter, that did the trick. I can't tell you how much I really appreciate your help! You are a gh pro, and very kind for taking the time to help me out. Thanks again.

Cheers,

RP

Comment by Pieter Segeren on September 21, 2016 at 2:35am: feed the Legend's R input a rectangle.

Comment by Ron Perrone on September 20, 2016 at 8:43pm: Hey Pieter, my apologies for making an incorrect assumption, total rookie move on my part from a lack of experience with gh. What you sent was extremely helpful and I am very grateful! I was able to get the legend to read the correct values from lowest to highest in the z direction. However, I am having trouble displaying the legend in Rhino. Any thoughts? Thanks again for your help, I really appreciate it!

RP