Dave N6NZ wrote:
I don't know much about 3D file formats. I know stl is basically a bag of
triangles, and I think stl is also. So while you can communicate a hull, you
can't do much more. No parametric information, no material information, no
joint information, etc. Not sure about iges, I know pretty much nothing about
it.
IGES is an old US military standard. It means 'Initial Graphics Exchange
Specification'
and the specification for it is freely available, since it's a work from
a US government
agency (I got it ;-). As the name says, it was meant as preliminary
work, but served
it's purpose for decades. Now it's being replaced by STEP...
For the reason that STEP costs a lot of money, I wonder how the FreeCAD guys
want to keep the promisse to provide import and export for it - maybe a
feature
of the OpenCASCADE kernel - but how did they?
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