how to display CGM files

[Belen]

I would like to display .cgm files, but I do not find anything within the Qt classes.
I though about something similar to svg.
Does anybody knows how to display cgm files?

[ChrisW67]

CGM is a niche format (defence and large engineering) that is poorly supported, if at all, in open source. There's nothing in Qt out-of-the-box but there are commercially available CGM libraries (Google for them) that you could write wrapper around.