[Kstars-devel] KStars, now with indexing!

[Jason Harris]

Hi James,

On Sunday 29 July 2007 12:06, James Bowlin wrote:
> Once more with feeling!
>
> The version of KStars with indexing is now available from:
>
> $SCHEME://svn.kde.org/home/kde/branches/work/kdeedu_kstars_htm
>
Great!  I can't wait to try it.  I'm finally back home in Tucson, but I'm at 
work ATM, so it will have to wait til this evening.

> Make sure you run a "make install" or "sudo make install" because
> some of the data files have moved/changed.  The new versions should
> peacefully coexist alongside the older versions.  

We should add directives to the CMakeLists.txt file so that the old versions 
are removed from the user's computer if found.  No sense cluttering people's 
disks with deprecated data files.  Anyone know the cmake-fu that does this?

> When doing a clean 
> install I noticed that Cities.dat, clines.dat, cnames.dat, and
> milkyway.dat were missing from data/CMakeLists.txt so I added them
> in order for the install to complete.
>
That's terrible!  How could I let that happen?  Thanks or catching it.

Thanks also for your continued effort on this; indexing will really make 4.0 
shine.

regards,
Jason

> I suspect that if it compiles, it will work.  If it doesn't compile,
> please let me know and I will try to fix the problem(s).
>
> If you want to see for yourself that the index is working, change
> line 175 in skycomponents/skymapcomposite.cpp from:
>
>     m_skyMesh->aperture(focus, radius + 1.0, DRAW_BUF);
> to:
>     m_skyMesh->aperture(focus, radius / 2.0, DRAW_BUF);
>
> (divide by 2.0 instead of add 1.0) which will make it so that indexed
> objects will only be drawn if they are in or near the central 1/4 of
> the screen.  Most things outside the solar system have been indexed.
>
> You can also make some of the mesh triangles visible by uncommenting
> lines 260 and 263 in that same file:
>
> 260:    //m_skyMesh->draw( ks, psky, scale, IN_CONSTELL_BUF );
> 263:    //m_skyMesh->draw( ks, psky, scale, OBJ_NEAREST_BUF );
>
> Line 260 will cause green triangles to appear after you rightclick
> on the skymap showing the trixels used to find the constellation you
> clicked in.  Line 263 will show yellow triangles almost always under
> the cursor when the index is used to find the object closest to the
> cursor (which quickly becomes boring and annoying). I think you could
> fill the screen with triangles by changing the last parameter in one
> of these two calls to DRAW_BUF.

-- 
Jason Harris
jharris at 30doradus.org