hi Akarsh<br>guess i need to clarify the problem a bit more <br>probably best way would be to explain the problem i guess<br><br>best observation angle is vertical (shortest path though the atmosphear)<br>if using a polor mount on the scope then you avoid the need for the scope to<br>
have to reach its rotation point like on the "horizontal"/alt az system <br>if you are using kstars to look at the point directly above then as you may <br>know panning around there the view rotates around that point <br>
making it hard to both get your bearings properly <br>if using kstars with a connected polar mount scope then that view rotation axis should<br>be alligned to the celestial pole where it has the same problem <br>one of the advantages of using a polar mount is it that the aria directly above can be photographed <br>
without having actual fov rotation during a exposure <br><br>this way other than rotation of the fov to compencate is perferabe and a lot more pratical to follow whats happening <br>as the sky rotation point matches the equipment setup <br>
then the fov rotation correction is only needed to correct the rotation of the cam angle on the tube of the scope itself as just a user setable offset value <br><br>from the programming side i guess its as easy eather way to manage this but from a usage point of view <br>
if fov only rotation is used then it would be fair to say ..<br>that trying to interprate the fact that your view is using one rotation axis and the scope fov using another at <br>although the scope and fov view are correctly displayed trying to intrerprate the view angle and navigate it as displayed is tricky to say the least<br>
<br>Regards <br>David<br><br><br><div class="gmail_quote">On Fri, Dec 10, 2010 at 10:11 AM, Simha <span dir="ltr"><<a href="mailto:akarshsimha@gmail.com">akarshsimha@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div><div></div><div class="h5">> quick description<br>
> is it possible to add a* polar based view as well as the default alt/az<br>
> system<br>
><br>
> longer discription<br>
> when using kstars the view is as it would be for a alt az mount** ie*<br>
> centered on the location with the views rotation<br>
> based on the point directly above<br>
> if using a polar mount on a telescope connected to it via inid then the<br>
> displayed data should* be rotated around the pole<br>
><br>
> mainly if you set the fov symbol to a rectangle to display the fov of an<br>
> attached cam then it is at the wrong rotation for the actual<br>
> fov* amongst other things<br>
<br>
</div></div>Hi David<br>
<br>
I don't understand your point completely. As far as I know, the<br>
"Horizontal Coordinates" mode (I think it's now called "Switch to<br>
Horizonal View") in one of the menus uses Alt-Az coordinates.<br>
<br>
Firstly, the FOV symbols still don't rotate -- they are fixed<br>
horizontally, which is unfortunate, and that's something we must<br>
change very soon.<br>
<br>
But what you are saying, I guess, is (once we get them to be<br>
rotatable) that they should rotate as expected by slewing a telescope<br>
on an alt/az mount. I think that should be doable to.<br>
<br>
I'll try to do this after 15th December. This might be an interesting<br>
GCI task as well.<br>
<br>
Regards<br>
<font color="#888888">Akarsh<br>
</font></blockquote></div><br>