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Temperature mapping of thermocouple on intensity graph

Dear all,

 

I am using LabVIEW for couple of years but never had to deal with image and temperature mapping.

 

What I need to do is to load a captured image of a heating chamber for e.g., in the attached image. Then user can mark 16 thermocouples on the loaded image. The x-y position of the marked 16 sensors should be then stored in the "temperature sensors" table as shown in the attached image. The values of the 16 thermocouples will be then read and based on the scattered thermocouple's temperature a thermal map should be shown on top of the image.

 

I have attached my code in which I have used Intensity graph to show the thermal mapping.

I put a transparent background intensity graph on top of a simple image. Once the user click on "Load image" button the image of heating chamber with be loaded. Then the user can mark thermocouples on the intensity graph by enabling "Assign TC" button. Currently I have used square marking but can be changed to point or any other marking.

 

Problem:

1. To mark any area on the intensity graph, I need to give some data to the graph. I cannot draw anything on empty intensity graph. But I do not want to show anything else on top of the loaded image. Just the temperature mapping of the thermocouples after they have been marked. Is it possible to mark anything on intensity graph without loading any data? or by loading a data which is transparent or translucent to see the image behind?

 

2. After marking the thermocouples, how can I get their x-y coordinates and store them in the table?

 

3. How to show the temperature mapping of the scattered marked thermocouples?

     - For a start, I was thinking to store thermocouple value in the array and then load them after they have been marked on the intensity graph. And then extrapolating the thermocouple values across the intensity graph area.

 

Also do you think if intensity graph is the proper choice of graph for this use?

 

I am using LabVIEW 2018 version and I do not IMAQ module so I have to make it work without it.

 

Let me know if you need lower version of the code attached.

 

Thank you and kind regards,

Pranav.

 
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