Jsroot display CAD stl files

ROOT
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Is it possible or how hard would be to implement jsroot loader of the .stl file (or similar CAD files), merge them with the root geom files and display it.

https://threejs.org/examples/webgl_loader_stl.html

Best regards, Rok

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2

Hi @f9daq,

You mean using STLLoader functionality with JSROOT? Up to now nobody was asking about such functionality.

It can be done very easy on API level. Means one creates custom HTML page which makes TGeo drawing, then loads STL geometry and adds it to existing TGeo scene. This can be done already now
using functionality of TGeoPainter. If necessary, functionality can be extend. I also can provide simple example for that.

More work will be required to integrate STLLoader into JSROOT. Means to use it directly with default JSROOT GUI just by providing URL parameters. Also in this case not clear which loaders need to be supported - there are ~30 of them.

But in general I see no problem to implement something reasonable

Regards,
Sergey

3

Thanks,
Yes, I mean STLLoader functionality. I would really appreciate if you can provide the example.

Integration in the default GUI is not cruical at the moment, but might it might be an usefull extension.
Regards, Rok

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Hi Rok,

Here is example: https://jsroot.gsi.de/dev/api.htm#custom_html_tgeo_with_stl

Later one can provide tooltips handler for such objects.

Regards,
Sergey

5

Hi Sergey,
thank you for the solution. This is exacly what I needed.
Regards, Rok

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