Displaying a graph or a red cross if the graph is missing

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Tue, 08/15/2023 - 01:45 am

Dear all

I want to have a panel where I show a number of graphs - but at some occations the data for the graph will not be available and then I would like to display a red cross or something similar to indicate that the data is not available.

Is there such a function in Igor or do you have any clever suggestions on how I can clearly show that there is nothing to show...?

Thanks,
Johan

I am not sure I fully understand what you are trying to do. If the graph is empty then this is already a good indication that the data is not available, no? But if you want to draw an 'x' inside the graph you could display dummy data like this:

Make/D/O no_data_x ={0,1,nan,0,1}, no_data = {0,1,nan,1,0}
Display no_data vs no_data_x

 

August 15, 2023 at 02:12 am - Permalink

You could also change the graph background color.  For example, the following sets the graph background color to a light red:

modifygraph gbRGB=(65535,40000,40000)

 

August 15, 2023 at 07:01 am - Permalink

This is a good idea (I think). It requires no new data and clearly shows that the data is missing... I think I will use this approach...

chozo - thanks as well, but I think I will go for this approach in order to not need new waves...

Best,

Johan S

August 15, 2023 at 11:56 am - Permalink

I use the background color in a similar circumstance to yours and it does the job.

August 15, 2023 at 06:23 pm - Permalink