The custom horizon feature (in v2.76, at least) is pretty basic and assumes that all obstructions are convex as seen from above. So that puts some limitations on how fancy you can get with it.
It sounds like your only visible part of the sky is a hole that's offset from the zenith. In that case, the best you could do is define the lower alt for the azimuths in that area, and set it to 90 alt for everywhere else. Then the clear part of the sky on the screen will look somewhat like the upper part of an observatory dome slit, even if you cant see the _far_ upper part of that (the part near the zenith). You can't reverse az in the file. It takes the az values in order (that's why everything is convex as seen from above). -John ----- Original Message ---- > From: Kevin Quin <[email protected]> > To: [email protected] > Sent: Saturday, May 16, 2009 1:52:27 PM > Subject: [skychart-discussion] Some questions re local horizon files > > I have plenty of trees from my site, and I set up a local horizon to > reproduce > them. The program is ignoring "reverses" in azimuth - in other words, where > the > path of the hole in the trees (which, BTW, is the name of my observing site!) > reverses direction, creating a "bay," if you will, I can't get the program to > produce that. I enter the coordinates in, but they are ignored. Any ideas? > Second, I actually have two holes, one large one and one much smaller around > the > pole. Is there any way to get CdC to show this second hole? Finally, can > the > program show the local horizon when it is running in equatorial mode? Not a > big > deal, but it would help with planning imaging sessions. TIA. > > - Kevin > The Hole in the Trees Skybox > http://members.cox.net/kevinquin3/Main.html > > > > ------------------------------------ > > Yahoo! Groups Links > > >
