topic Re: Color changing plot in LabVIEW

Color changing plot

Cory_K — Thu, 31 Jul 2008 19:29:48 GMT

I just finished a program and wanted to add a few things just to make it look nice.

One thing I wanted to do, if possible, is the following:

I have an XY chart.

Say, I have a range of 0 - 100.

Can I make the segment of line that is below 33 be red, 33-66 be yellow, 66-100 be green?

I would assume there is some property node that controls that, but I can't find it.

Thanks

Re: Color changing plot

jon_mcbee — Thu, 31 Jul 2008 19:33:02 GMT

I think the best way to do that would be to take your single plot and make it into plot three plots on your xy graph, with each plot representing one of the data ranges. This way you can use a property node to change the color of each plot so that it is represented as you want. The property you want is Plot>>Fill/Point Color.

Re: Color changing plot

Cory_K — Thu, 31 Jul 2008 19:35:01 GMT

There is no way I can make the color change?

Re: Color changing plot

jon_mcbee — Thu, 31 Jul 2008 19:37:07 GMT

You can make the color change for each plot, but this would mean that your XY graph would have only one color. By breaking your plot into three plots (0-33,34-66,67-100?) you can color each individually by using a property node, setting the active plot and then changing the fill/point color.

Re: Color changing plot

TCPlomp — Thu, 31 Jul 2008 19:42:03 GMT

jmcbee is right.

I would test every value for it's range and replace it with NaN if it's in the wrong range.

Ton

Re: Color changing plot

Tobin — Thu, 31 Jul 2008 21:47:39 GMT

Ton,

I've made an example based on your description. Here it is for reference.

Re: Color changing plot

Cory_K — Fri, 01 Aug 2008 16:59:47 GMT

OK, i misunderstood what you said.
I thought you meant to have 3 seperate graphs.

That looks like it will work great.
Thanks for your help.

Re: Color changing plot

Cory_K — Fri, 01 Aug 2008 18:22:59 GMT

Hey Tobin, do you think you could attach that file as a .vi instead of png.
I am having a hard time seeing all of the things you did.

Thanks,
Cory

Re: Color changing plot

Tobin — Mon, 04 Aug 2008 12:22:56 GMT

Cory,

Here it is in ver 8.5.

Sorry it took so long, I was out on Friday and I did not check back until this morning.

Tobin

Re: Color changing plot

Cory_K — Wed, 06 Aug 2008 19:24:59 GMT

Thanks, that was a lot of help.