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Author Topic: progress callback - issues with dense cloud  (Read 86 times)

_danny_

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progress callback - issues with dense cloud
« on: January 24, 2023, 08:54:54 AM »
I am trying to use the progress callback option from the Metashape Python API within my scripts for various steps in building an orthomosaic.  I have defined a function for printing the progress as per Alexey's recommendations here: https://www.agisoft.com/forum/index.php?topic=6146.0

Code: [Select]
def progress_bar_print(p):
    global n
    if not 'n' in globals():
        n = datetime.now()
    dif = datetime.now() - n
    # If the last progress print was less than .5 seconds, don't print
    if dif.seconds > .5:
        print('Current task progress: {:.2f}%      '.format(p),end="\r")
        n = datetime.now()
    else:
        return False

This works fine for some processes such as building depth maps:
Code: [Select]
# Dense cloud
dense = Metashape.Tasks.BuildDenseCloud()
dense.keep_depth = False
dense.point_colors = True
dense.point_confidence = False

for i in range(0,len(chunk_dict)):
    st = datetime.now()
    print('Building Depth Maps for {}'.format(doc.chunks[i].label))
    depth.apply(doc.chunks[i], progress=progress_bar_print)
    print('Task Complete                       ')
    fin = datetime.now() - st
    print('Finished {} in {} seconds\n'.format(doc.chunks[i].label, fin.seconds))
    doc.save()

Output: (here the second line keeps getting overwritten as the process proceeds)


But for other processes, such as building the dense cloud, it behaves strangely, and seems to split up into multiple processes:
Code: [Select]
for i in range(0,len(chunk_dict)):
    st = datetime.now()
    print('Building Dense Cloud for {}'.format(doc.chunks[i].label))
    dense.apply(doc.chunks[i], progress=progress_bar_print)
    print('Task Complete                       ')
    fin = datetime.now() - st
    print('Finished {} in {} seconds\n'.format(doc.chunks[i].label, fin.seconds))
    doc.save()

Output: (here the progress doesn't overwrite itself like I'd expect, it seems to add it to the existing text, making things look strange)


I'm not sure if this is a problem with my code (pretty likely) or whether it's to do with the dense cloud function itself but any help from others who have experience with this would be appreciated!

_danny_

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Re: progress callback - issues with dense cloud
« Reply #1 on: January 24, 2023, 09:24:49 AM »
l
« Last Edit: January 24, 2023, 10:43:32 AM by _danny_ »