Draw rectangle at the Intensity graph (position where it is clicked )

[sets]

I am able to extract coordinates using mouse down and mouse up event structure but unable to draw the rectangle at the specified positions.I am getting coordinates at mouse down and mouse up event  in these bounds.I want to draw a rectangle at the position of coordinates but unable to do so.

[ben64]

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@sets wrote:

I am able to extract coordinates using mouse down and mouse up event structure but unable to draw the rectangle at the specified positions.I am getting coordinates at mouse down and mouse up event  in these bounds.I want to draw a rectangle at the position of coordinates but unable to do so.

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The rectangle will draw in front of the data layer. You need to add data to the graph first.

EDIT: Use the coordinates, not the XY values.

Ben64

[sets]

still not working....

[ben64]

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sets a écrit :

still not working....

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Like I said in my previous post it will draw on top on the data layer, you must add data to the graph before drawing the rectangle.

See attached.

Ben64

[sets]

cannot open your VI ....please save it for previous version labview 2011

[ben64]

Version 2011 attached.

Ben64

[altenbach]

You need to account for the plot bounds. See my example (posted here) long ago.

[ben64 · Accepted solution]

One more thing, since you're using the Draw Rectangle function you need to deal with the cases where the rectangle is not drawn from top left to bottom right. You have to make sure the minimum X value goes to the LEFT input and the minimum Y value goes to the TOP input of the rect terminal of the Draw Rectangle vi. Use the Max & Min function from the comparison palette for this.

Ben64

[sets]

Thanks alot......understood it.