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General / Reference pane accuracy numbers for small objects
« on: May 30, 2025, 06:51:34 PM »
Hi, I’ve recently come back to Metashape having been busy with other work for a while, and I notice that the reference pane now displays numbers to only 3 decimal places, which is 1 mm.
Many of the objects I reconstruct are tiny, some as small as coins, with a plan to work with microscope images soon.
This means that the smallest significant digit in reference is now be as much as 5% of the size of my objects.
(For areal photo data where pixels are measured in factions of a meter, mm would be too fine)
I would very much like this to be customisable, or at least have a few digits added back. I’ve looked, and I can’t see any options about this.
I’ve seen forum posts of people being confused numbers that aren’t zero, and I sympathise that some users will find these numbers concerning but I personally really want to know the difference between 0.49mm and 0.001mm. My pixels are sometimes on the order of 0.01mm, and I believe Metashape does sub pixel locations for markers.
I’m currently working with objects on the order of 20cm long, and I’m being told that the error on all the scale bars is either “0.000” or “-0.000”, what is frustrating is that I know this isn’t correct.
Maybe using the accuracy field to determine how many digits to use could work? Display the right number of digits to be able to display 1/1000 of the accuracy number? Or simply turn off the rounding if any accuracy smaller than 2mm is seen, which would be a bit of a hack, but would work for most people.
Many of the objects I reconstruct are tiny, some as small as coins, with a plan to work with microscope images soon.
This means that the smallest significant digit in reference is now be as much as 5% of the size of my objects.
(For areal photo data where pixels are measured in factions of a meter, mm would be too fine)
I would very much like this to be customisable, or at least have a few digits added back. I’ve looked, and I can’t see any options about this.
I’ve seen forum posts of people being confused numbers that aren’t zero, and I sympathise that some users will find these numbers concerning but I personally really want to know the difference between 0.49mm and 0.001mm. My pixels are sometimes on the order of 0.01mm, and I believe Metashape does sub pixel locations for markers.
I’m currently working with objects on the order of 20cm long, and I’m being told that the error on all the scale bars is either “0.000” or “-0.000”, what is frustrating is that I know this isn’t correct.
Maybe using the accuracy field to determine how many digits to use could work? Display the right number of digits to be able to display 1/1000 of the accuracy number? Or simply turn off the rounding if any accuracy smaller than 2mm is seen, which would be a bit of a hack, but would work for most people.