Set a scale for the video, picture or gel analysis.
It's helpful to have something within the movie or picture to mark the distance. For example, having a meter stick in the movie will give you a good indication of the space you are dealing with.
After you have clicked ,
you can drag the distance desired in your movie, then record the
Distance
and Units in the dialog that pops up.
Using the meter stick example, enter Distance-1, and Units-m.
See Also: