Number of points in points cloud

[photoscan_user]

As I can see len(chunk.point_cloud.points) gives me 79429 points, but when I use right click on project -> show info it show me 79429 of 103995, so as I understand chunk.point_cloud.points is just valid points? How can I access all points?

[Alexey Pasumansky]

Hello photoscan_user,

You can access the total number of tie points by using tracks concept:

Code: [Select]

total_points = len(chunk.point_cloud.tracks
The number in the Workspace for tie points represent the number of valid points from the chunk.point_cloud.points, so you can get this number by the following command:

Code: [Select]

valid_tie_points = len([p for p in chunk.point_cloud.points if p.valid])
Switching the valid flag to False to the point from the point_cloud is similar to removing the point from the sparse cloud in the Model view.

[photoscan_user]

Is it ok that

len([p for p in chunk.point_cloud.points if p.valid])

is the same as

len(chunk.point_cloud.points)

and both of them equal to 79429

?

As I said right click on project -> show info it show me 79429 of 103995

and

len(chunk.point_cloud.tracks)

103995

[Alexey Pasumansky]

Hello photoscan_user,

Yes, it seems to be correct.

You can try to remove manually some points from the sparse cloud and get all three numbers without re-saving the project. The number of valid points will be less then number of points. Number of tracks would remain the same.