Need help selecting points behind objects for point cloud alignment

[crullier]

Hi guys !

I am having a little problem. I have 3 rooms I need to register or align together, they all share sight lines etc.
the problem I am having is that because these are rooms with 4 walls and a ceiling, I am unable to pick the point I need to pick.

I thought that by using the segmentation tools or sections I would be able to get to where I need. But the issue is that if sections all 3 rooms to be able to pick point or features on the floor for example, then I am aligning the sectioned point clouds and not the entire dataset.

Can someone please help me with this workflow?
Thank you

[daniel]

You should switch the 3D view to 'perspective' mode and zoom 'inside' the room. The 'user-based' perspective should be the best option as it behaves as if you were waling inside the room.

[crullier]

Daniel, so there is no way to currently hide a portion of the cloud?
Your suggestion may, but not ideal and would take a lot of moving around ?

[daniel]

You can also play (still in perspective mode) with the 'zNear' distance (see the Camera parameters). This will move forward or backward a virtual 'cutting plane' in front of the camera. This way you may manage to achieve what you are doing without moving the camera too much?

[crullier]

something like that just hides a portion of the cloud would be useful - without really breaking it up into two clouds.