How can I display the length of the yet unfinished line that a user is drawing in the image using the line tool of the IMAQ tool palette.

Is this really not possible using standard Labview/Vision YI`s?

Herbert,
I can't find a way to extract the information you want within the program. However, this information is displayed as part of the IMAQ tool palette while the user is drawing the line. The pallette shows the anchor point, the X and Y offsets, and the line length and angle.
Bruce
Bruce Ammons
Ammons Engineering

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