Hi,
now that I've most of the 744's EICAS pages done, I started converting the PFD to Canvas. I think I can implement all of its functionality, but there's one thing that doesn't work yet.
For the attitude indicator, I've created a group containing two squares (sky and ground) and placed a rounded-square on top of it. I then selected the group and the rounded-square, chose Object > Clip > Set and voila, the horizon is nicely clipped (see image below). When I load this in FlightGear, the clip isn't respected and I see the full squares of both sky and ground.
Is my procedure wrong? Should I register something in the Nasal? Or is clipping not yet (fully) supported? You can find my SVG file at http://liveries.flightgear.org/744/PFD.svg It's just a rough sketch to see if I can get clipping to work.
Cheers,
Gijs