adding background color to specific sections of a waveform chart

[MaizeBlue]

I am looking for a way to select a specific background color on a waveform chart programatically for specific y axis ranges. For example, between the y axis value of 1 and 3 I would like the waveform chart background color to be yellow. Any suggestions on how to do this programmatically using the property nodes ?

[GerdW]

Hi Blue,

as charts are rather limited in their possibilities (compared to graphs) I would suggest to use additional plots for that purpose.

Set those plots to fill to -Inf with the color needed:

Plot 1 is set to black and fill to -Inf, Plot 3 is set to blueish and fill to -Inf. All other plots are set to show points and line...

[MaizeBlue]

Is there a good method to do this programatically with graphs then ?

[GerdW · Accepted solution]

Hi,

with graphs you can use cursors or background images. There are even examples coming with LabVIEW showing how to show draw limit lines...

[MaizeBlue]

Hello, i have implemented this method that you have proposed, but now the plot is behind the shaded regions. How do i bring the plot in front of the shaded regions like you did for plot 4 in your example above ?

[GerdW]

Hi Maize,

the plots are ordered by their index: plot0 is in front of plot1. Plot1 is in front of plot2. Plot2 in front of plot3. ...

Do you get the scheme? 🙂