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Esri / i3s-spec

This repository hosts the specification for Scene Layers which are containers for arbitrarily large amounts of geographic data. The delivery and persistence model for Scene Layers, referred to as Indexed 3d Scene Layer (I3S) and Scene Layer Package (SLPK) respectively, are specified.
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How to convert the quaternion from local SR to global SR? #160

Open alunAlunnnnn opened 1 year ago

alunAlunnnnn commented 1 year ago

Hello,

I'm tring to convert I3S 3D-Object Scene Layer data to other format, most of them are wonderful to display, when I have converted it. But the OBB works not very well.

When I convert I3S data with EPSG:4326, all of them have a good work. But if the I3S data have EPSG:3857, the quaternion can not fit with the global, which have not any terrain data.

It looks like below image

The quaternion in one node is [0, 0, 0.93927725010939966, -0.34315921585602843], convert to euler xyz rotate is [ 0. 0. -2.44103607], it seems there are no x rotate and y rotate data to make the OBB have a correct rotate in EPSG:4326 global.

Could I convert a quaternion correctly from EPSG:3857 to EPSG:4326? for some reason, I can not use ArcGIS Pro Desktop or it's SDK to do this job.

The nodepage data is here

Thanks a lot.

wzwxwc commented 1 year ago

have you solved? I have the same problem.