PointCloud PickBox and export to csv

[SONA-ARCHITECTURE]

Hi there,

I'm french, so, I hope, you'll excuse my english 🙂

I'm trying to developp a module to select a region from a pointclound instance and export all the points in my selection to a csv file.

I found Code Region: PickBox wich use CreateMultiPlaneFilter to highlight points selected.

I've got 2 questions :

1. if i use the GetPoints function, does the function extracts points from my filter?
2. when I change the view range or the offset delimitation of my view, I can control the visibility of my cloud. Does the getPoints takes into account the points masked or not?

I hope I make myself understood...

1000 thx 🙂

[jeremytammik]

Hi,

I do not know off-hand.

I suspect nobody else does either. 

I suggest you try it out yourself and let us know the result.

Is there anything stopping you from doing that?

Thank you!

Cheers,

Jeremy

[SONA-ARCHITECTURE · Accepted solution]

Hi Jeremy!

I'm done!

You can have a look here and I can explain if necessary.

[christian.tonn · Accepted solution]

Hi agence,

I'll try to answer this from my experience with point clouds in the Revit API.

> 1. if i use the GetPoints function, does the function extracts points from my filter?

Yes, but the point number is limited to 999'999 (a million) in the requested convex section.

> 2. when I change the view range or the offset delimitation of my view, I can control the visibility of my cloud. Does the getPoints takes into account the points masked or not?

No, you will always get all points of all loaded point clouds (sampled down to the million) even if you don't see them on your screen. You will have to take care for all other view limitations by yourself. I hope you won't miss one (ViewRange, ViewOffset, SectionBox, ViewType, DesignPhase, ...) it's actually a little hard, I guess.

I hope this helped a little.

Ciao, says

                 Christian