I would like to know if there is a way to find out the exact number of meters per pixel on Tracker after using the calibration stick, since it's part of the data required for my physichs assignment.

I believe I could calculate so by dividing, for example, the difference between the x position in meters and the x pixel on two different tracking points, but I do not know how accurate it would be.

Thank you for making this great software and assisting us since 2009.

Yes, you can get that number exactly as you described: (x1 - x2) / (pixelx1 - pixelx2).

It's overkill and meaningless to report that number to super high precision because of the uncertainties when marking points. But if you do want to see the full-precision values just select the rows of interest in a table, right click the table and choose Copy Selected Cells|Full Precision. Then paste into a text document or spreadsheet to see the values. Doug

> I would like to know if there is a > way to find out the exact number of meters per pixel > on Tracker after using the calibration stick. > > I believe I could calculate so by dividing, for > example, the difference between the x position in > meters and the x pixel on two different tracking points, > but I do not know how accurate it would be.