Write STL to string

zapperjet's picture
zapperjet
Fri, 03/03/2017 - 19:18
Forums: 
Other usage issues

Hello,

I'm wondering if there is a way to write the Stereolithography (STL) data from a TopoDS_Shape to a container in program memory instead of to a file on disk.

I'm building an application where one component needs to read an STL file for a lot of objects and I don't want the disk I/O overhead.

 

Thanks

Forum supervisor's picture
Forum supervisor
Mon, 03/06/2017 - 08:27

Hello John,

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Best regards,

Forum supervisor

Hugues Delorme's picture
Hugues Delorme
Mon, 03/27/2017 - 11:24

Hello John,

You can use the gmio library.

gmio supports writting the internal triangulation of TopoDS_Shape objects, see here for the list of supported OpenCascade classes.

gmio works on "abstract" streams it's not limited to files.

You can easily provide a stream of your own that writes to a memory block.

Note that gmio provides also ready-to-use streams for QIODevice and C++ std streams.