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labview vision overlay - cursor position

Dear all, I have Vision acquisition but not Vision Development. It is worst to post my question because I cannot find a solution to this problem. 

 

Problem: a click on the ROI tool, it leads to unwanted implementation of XY coordinate. Because ROI tool seems to be a part of the image. Then it seems an active area when clicking with the mouse. But I would like to image only to be active on mouse click.  

 

Intention: I have a camera, I am observing a sample with an array of real dots. I want to click on each real dot on the image, and create an overlay of a pattern (colored filled circle) corresponding to each real dot position on the image. I am not asking any pattern recognition, this is not the purpose because of multiple reasons (including image quality, low contrast, ...etc...). Eventually, the image can move a little bit, so I would like to refine or delete some patterns when needed. 

 

Intention 2: supplementary request/advice, will be to select/delete/replace some pattern from the array of XY coordinates. For example, for the pattern number 3, I want to delete it or to replace it with a more refined position. What is the kind of strategy to do that ? Should I add a column 0 with the index of the pattern (pattern number 1) and column 1&2 with the XY ? Then create a control to select the index, and another control to choose between delete/replace ?

Thank you in advance for your help. 

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