Please see reply from Norman Masters on the QCad users mailing list: http://permalink.gmane.org/gmane.comp.cad.qcad.user/577 Apparently what I asked about in my OP will work in QCad 2.1.x, so all I have to do is cough up a few bucks or wait a few months for the source. So far QCad has been absolutely awesome. I'm not sure if the other operations you mention will work in 2.1.x. On 1/22/07, Carl Brown <cbsled@xxxxxxxxxxx> wrote: > > It is not possible in QCad. > There are several other operations which are also not possible with > splines or > ellipses in QCad, including trimming to them. QCad appears to be unable to > determine the exact coordinates for arbitrary points on these entities. > You > can snap to an endpoint or a midpoint of an ellipse, but you can not trim > to > an arbitrary intersection with an ellipse or a spline. This same > limitation > affects hatching, since hatching requires trimming. > -- > Carl Brown > Whitefield, NH USA > > -- Adam Monsen