Extract the coordinates of a contour with IMAQ

[Milie]

Hi,
I want to extract the contour of a drop. After processing with IMAQ, I set a system coordinate (see enclosed image) and I would like to get the coordinates, in this system, of all the points on the contour, how can I do that using IMAQ Vision (or LabVIEW)?
Thanks,

Emilie

[Amaury]

Emilie,

When you update your coordinate system you get a main axis and secondary axis returned. These two axes share point 1. ie. that is the origin. You can therfore take the difference of each point in your contour with the coordinates of the origin and find the point in the coordinate space.

Regards,
Amaury

[Milie]

Dear Amaury,

Thanks but I guess I was not clear enough as my problem actually is to get the points' coordinates in the first place.

Cheers,
Emilie