Adding and Assigning Markers to Marker Group (v1.3.0)

[Nick Durston]

I'm currently trying to create a marker group and then assign markers to the group using Python.

I can create a marker group using:

mGroup = PhotoScan.MarkerGroup

I then try assigning a marker to the group from my list of markers:

chunk.markers[0].group = mGroup

and the following error is returned:

TypeError: expected  PhotoScan.MarkerGroup object

But mGroup IS a marker group object!

To try and work out what was wrong, I manually created a marker group in the GUI. I then was able to identify that group using:

grp = chunk.marker_groups[0].

And then using:

chunk.markers[0].group = grp

works as expected, and the marker is added to the marker group folder.

I think the issue is that when you run

mGroup = PhotoScan.MarkerGroup

it is then unclear how you then go on to make use of mGroup. For example, how do you assign the marker group to a chunk - as you can do easily in the GUI? Because if you can do that, the next step should then work fine.

Any help much appreciated.

[Alexey Pasumansky]

Hello Nick,

 PhotoScan.MarkerGroup - is a class name.

If you need to create a new group and assign it to some marker, then you need to do the following:

Code: [Select]

grp = chunk.addMarkerGroup()
grp.label =  "New Group"
chunk.markers[0].group = grp


[Nick Durston]

Dear Alexey,

Thanks for the quick response. The first line of the code yields:

AttributeError: 'PhotoScan.Chunk' object has no attribute 'addMarkerGroup'

The Python reference manual for v1.3.0 is consistent with this as there is no such command 'addMarkerGroup'.

I can confirm I am definitely using Photoscan v1.3.0 and not an earlier version.

Thanks again,
Nick

[Alexey Pasumansky]

Hello Nick,

Well, it seems that this functionality is not yet available in public 1.3.0 release, but would be definitely included in the next update.

[Nick Durston]

Ok no worries. Will look out for next release! At least I now know it wasn't me doing something silly