Plot colors

Hello everyone,
I need some help on something that Im trying to figure out.
I need to plot on a waveform graph different points but I need to change the color by groups of 16.
Lets say that I have 304 points and I need to plot it every 16 points with a different color.
If anyone have a clue or an example just let me know ...
Thanks a lot !!

very crude example is attached.
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA
Attachments:
Crude multicolor plot.vi ‏19 KB

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Copyright © 2004-2015 Christopher G. Relf. Some Rights Reserved. This posting is licensed under a Creative Commons Attribution 2.5 License.

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Hi Matthew,
I've gotten this method to work with an xy plot (I can't use waveforms since my dt is a user variable). Its much more processor efficient than using property nodes but I'm bothered by the 2x increase in memory. So far this is the best solution, but I can't help thinking that if I could change the color set that the graph pulls from when plotting, then I could just set the colors I want and let the plot do all the work. When you create a plot indicator on a vi front panel and look at the plot legend, the color set is always the same - where does it come from? Maybe an ini file somewhere?
It just occurred to me - when you modify a plot, like change the axes or plot colors, where are the changes saved? They are persistent, even when the vi is compiled. So in theory, it should be possible to do programmatically before I start filling the plot with data.
Message Edited by gharris on 12-22-2008 09:32 AM

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I would like to know if there is some way to modify the algorithm that
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I can't vouch for 7.1, but you are looking at plot.color property node similar to the one in this example. http://digital.ni.com/public.nsf/allkb/C6BFD9BD5F01108C86256F8100638B29
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Hi Ceties,
There is Corrective Action Request:
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Hello,
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BundleSignals_Select_Desktop1.vi ‏25 KB
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Graph plot color

Dear all,
is there any way to have multiple colors in a single plot ?
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a graph is continuously running with a value '0'. when the stimulus is given, the value '1' is shown on the graph(just one value when the stimulus is given) and '-1' when it gets the response. the user sometimes gives response when no stimulus is given. that would be invalid response.
so if the response is valid i want to show '-1' as green and if it is an invalid response i want to show '-1' in red.
i am attaching the pic of the Graph .
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Solved!
Go to Solution.
Attachments:
Plot.png ‏3 KB

MikeS81 wrote:
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a single waveform can only have one color. Maybe you can use annotations. See the "Programmatically Annotate a Graph.vi" Example to get more information.
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2)
More work but do what CC suggested in this thread where he uses the "NaN" trick on the first plot as well to shut off the normal plot while the value is out of spec.
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Alisha P wrote:
You're right that they don't match the values exactly. It also is completely dependent on how the values are set for your particular color ramp, especially whether or not they are evenly spaced. In your first post, you showed a picture with the colors distributed according to the default. The method I mentioned in the previous post gets pretty close to these values (really a little under each of them - has to do with how the default is distributed).
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Are we to accept your work-around as the best answer NI can offer?
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Hi Jamie,
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Message Edited by TonP on 02-11-2008 07:45 AM
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How to plot with multi colors in a single XY graph?

Hi,
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Hi Graham,
  Thank you very much for the reply, I really appreciate it.
  However I don't quite understand your descripton. Yes I do spit my data in two arrays, one for forward sweep, and the other for reverse sweep. I can plot with different colors in XY graph by appending several XY graphs into one, but by doing this I can not see the data real time. I quickly made a vi to demonstrate my problem, hope this will give you a better understanding. Thanks.
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Multiplot waveform graph plots are different colors when set to be the same with a property node.

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Hi bh3560,
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