3D nomad app scan import issue

[bob cleaver]

I am learning the best way to use the lidar function and the nomad app:

I recently bought an iPhone 15 pro and used the lidar scan feature in the nomad app to produce the 2 scans in the file attached.

The enclosed file has 2 scans performed on the same day.  The 2 scans are adjacent areas and there is an issue with vertical and horizontal alignments.

This forum is the best solution for recommendations and I appreciate any recommendations for best practices.  

VW forum 3D scans bob cleaver.vwx

[zoomer]

Actually I tried the same today.

 

As for the Point Cloud,

I also wondered why I got and had to upload two 50 MB files.

(why do I need the cloud drive at all ?)

 

As I do not really like to work with Point Clouds in VW,

I tried to open both in Bricscad.

As I see, the one without VW in the name is rotated (Y's up or so)

and the one with the VW suffix is rotated correctly .....

 

But somehow the North direction is off !?

(Although all Nomads RoomPlan, PointCloud, .. scanning seem to use the same north offset,

but each his own n*90° rotation here ? Or is direction just arbitrarily from where you start scanning))

 

I am fine with the simplified RoomPlan accuracy.

It is about 1 cm off for around 4 meters.

But when you come back around after turning 360 degrees, the furniture (boxes) it scanned

are way off dimensions, although they initially looked reasonable.

 

The OBJ is a not so practical single Mesh Object in VW,

while it works fine in Bricscad, offering a separate Mesh for each part.

I wonder why the overall accuracy or rounding is not possible.

Is that an Apple API issue or VW's implementation.

I mean especially the 4 Room Walls that scanning creates with reasonable accuracy

but they don't meet corners where Walls should be connected.

Even worse, each single Wall seems to have intersecting Faces which prohibits

conversion to Solids in Bricscad - while all those furniture boxes convert fine.

 

The USD is basically accessible for separate parts by Meshes in VW.

But it is again hidden in an arbitrarily mess of unnecessary, redundant "Group" orgy.

AFAIR I had to double click groups 5 times or more until could access Edit Mode of

an arbitrary Room Wall, another arbitrary Room Wall vs all the rest of Walls and Boxes ... !?

[zoomer]

So is there another nice iOS App .... ?

- non abo/subscription, one time paid App

- saving locally on iPhone, not using any cloud and credentials

- exporting suitable 3D output formats (like DWG, FBX, USD, ...)

- max accuracy used of hardware sensor capabilitiy