RE: [CAD_CAM_EDM_DRO] Re: My 3D printer software done

>
> > I think you have a misconception here, a contour layer is just a
> > collection of boundaries at a given z position. The word contour and
> > boundary are exchangeable in the document.
>
> Graham,
> I think terminology is tripping us upwhich is pretty funny considering
> niether one of is exactly sure of the record format.
>
> For me a contour record is the record that defines the start of a
> level. Boundry records are all records following the contour record on
> the same level.
>
> A contour with a hole is comprised of a Contour record (header)
> followed by a boundry record. The first contour record is always on
> the outside of the figure. More complex shapes may have many boundry
> records. If the direction of the vector of a boundry record matches
> the direction of a contour record it is outside.
>
> The direction varies on contour records. Withing a model they can be
> all clockwise or all counter clockwise.
>
> Roger
>
> PS. Guys... this is all kind of esoteric and you only need to worry
> about it if you are writing your own parser.
>