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Re: [Stellarium-pubdevel] Random bug list: grid
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From: <fab...@go...> - 2007-05-08 22:34:23
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On 5/8/07, Johannes Gajdosik <joh...@gm...> wrote: > > Dear Fabien, > > > I fixed the zoomed out lines bug already on the SVN. > > I am sorry to say that I do not know what bug you have fixed, > and that I have always spoken about SVN, that is currently revision 2026. > Therefore I must repeat myself saying: Yes, those bugs are remaining, I meant the one with the missing meridian lines when zoomed out. For most of the other bugs, I need to work on the line drawing code in Projector class to detect where the discontinuities are and manage them properly. >>- the eliptic line wraps around the viewport. > >> - The gridlines intersect in the north and south pole in a nasty > >> starlike structure. > >> Whereas in version 0.8 the gridlines faded out around the poles in > >> order to avoid this effect. For me this is a regression. > >> - Also I see wrap-arounds of grid lines, when FOV>180. > And also when FOV is < 180. > > >> - sometimes grid lines just diappear, especially with high FOV > But also with FOV < 180. > > >> - In cylinder projection mode the grid lines are drawn totally > >> strange/wrong. > >> - The labes on the grid lines are very often hidden by the title bar. > > I still think that all of this bugs and regressions are present in > revision 2026. > > > By the way, I think we should not allow the user to zoom out as much as > now. > > Although it is technically correct, 350 deg field of view looks really > bad, > > and users will considere that as a bug. > > Does not matter. The gridlines are also wrong with FOV < 180, > see attached screenshot. For me one reason is that the wraparound > detection is missing or wrong. Also it looks like if only the reprojection > of the viewport corners would be taken into account, which is certainly > not enough. Especially when the viewport corners cannot be reprojected. > And this can easily occur even for fisheye projection with FOV < 180. I meant that even if there was no bugs with the lines, everything look bad for a 350 degree field of view (for esthetic reasons). So I would prefer that we don't allow to reach more than around 250 deg fov (for stereographic projection). At least by default. Fabien Johannes > > > > > Fabien > > > > On 5/8/07, Johannes Gajdosik <joh...@gm...> wrote: > > > > > > Problems of 0.8.x: > > > > > > 1) deep zoom caused the sky lines to vanish, because the segments > > > would become longer that 1024 pixels, which was the maximum segment > > > length (because of wraparounds). > > > > > > 2) The number of grid lines always was the same, independent of FOV. > > > Fabiens implementation adds extra grid lines when zooming in. > > > > > > 3) I cannot remember grid line labeling, but I think this was also > static, > > > whereas Fabien places the labels at dynamic positions. > > > > > > In fact the new grid behaves better when zoomed in, at least when we > > > forget about the nasty structure at the poles. For beeing fair I must > say > > > that the old grid did not show anything when zooming into the poles. > > > While it behaves worse when zoomed out: both appearance and > > > performance. I strongly hope that Fabien will fix the > > > zoomed-out problems, although this is irrelevant for ESO. > > > > > > Johannes > > > > > > > > > > > > On 2007.05.08 00:59:20 CEST, Rob Spearman wrote: > > > > What was the problem with the 0.8 version that required a complete > > > > rewrite? I don't remember having problems even with a deep zoom. > > > > > > > > Rob > > > > > > > > On Mon, 2007-05-07 at 22:32 +0000, Johannes Gajdosik wrote: > > > > > On 2007.05.07 23:54:06 CEST, Rob Spearman wrote: > > > > > > > > > > > > Here are some bugs I have noticed in SVN. Maybe we should > maintain > > > a > > > > > > google spreadsheet for keeping easy track of these toward 0.9 > > > . Easier > > > > > > than sourceforge. > > > > > > > > > > > > - in fisheye mode grid lines randomly turn on and off, sometimes > > > just > > > > > > spanning the viewport. > > > > > > > > > > Not only in fisheye mode. > > > > > > > > > > > Ecliptic seems to draw as a "D" most of the > > > > > > time. > > > > > > > > > > As I said in the meeting, I submitted a bug-workaround for the > > > ecliptic line > > > > > being drawn around the sun with radius 1AE (which caused the > strange > > > > > corners in the ecliptic line). > > > > > > > > > > Concerning sky lines I must say that > > > > > - the eliptic line wraps around the viewport. > > > > > - The gridlines intersect in the north and south pole in a nasty > > > starlike structure. > > > > > Whereas in version 0.8 the gridlines faded out around the poles > in > > > order to avoid > > > > > this effect. For me this is a regression. > > > > > - Also I see wrap-arounds of grid lines, when FOV>180. > > > > > - sometimes grid lines just diappear, especially with high FOV > > > > > - In cylinder projection mode the grid lines are drawn totally > > > strange/wrong. > > > > > - The labes on the grid lines are very often hidden by the title > bar. > > > > > > > > > > Johannes > > > > > > > > > > > > > > ------------------------------------------------------------------------- > > > > > This SF.net email is sponsored by DB2 Express > > > > > Download DB2 Express C - the FREE version of DB2 express and take > > > > > control of your XML. No limits. Just data. Click to get it now. > > > > > http://sourceforge.net/powerbar/db2/ > > > > > _______________________________________________ > > > > > Stellarium-pubdevel mailing list > > > > > Ste...@li... > > > > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > > -- > > > > Digitalis Education Solutions, Inc. tel 360.616.8915 > > > > P.O. Box 2976 fax 360.616.8917 > > > > Bremerton, WA 98310 http://digitaliseducation.com > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------- > > > > This SF.net email is sponsored by DB2 Express > > > > Download DB2 Express C - the FREE version of DB2 express and take > > > > control of your XML. No limits. Just data. Click to get it now. > > > > http://sourceforge.net/powerbar/db2/ > > > > _______________________________________________ > > > > Stellarium-pubdevel mailing list > > > > Ste...@li... > > > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > > > > > > > > > ------------------------------------------------------------------------- > > > This SF.net email is sponsored by DB2 Express > > > Download DB2 Express C - the FREE version of DB2 express and take > > > control of your XML. No limits. Just data. Click to get it now. > > > http://sourceforge.net/powerbar/db2/ > > > _______________________________________________ > > > Stellarium-pubdevel mailing list > > > Ste...@li... > > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > > > > > > I fixed the zoomed out lines bug already on the SVN. > > By the way, I think we should not allow the user to zoom out as much as > > now. Although it is technically correct, 350 deg field of view looks > > really bad, and users will considere that as a bug. > > > > Fabien > > > > On 5/8/07, Johannes Gajdosik <joh...@gm...> wrote: > > > > Problems of 0.8.x: > > > > 1) deep zoom caused the sky lines to vanish, because the > > segments > > would become longer that 1024 pixels, which was the maximum > > segment > > length (because of wraparounds). > > > > 2) The number of grid lines always was the same, independent of > > FOV. > > Fabiens implementation adds extra grid lines when zooming in. > > > > 3) I cannot remember grid line labeling, but I think this was > > also static, > > whereas Fabien places the labels at dynamic positions. > > > > In fact the new grid behaves better when zoomed in, at least > > when we > > forget about the nasty structure at the poles. For beeing fair I > > must say > > that the old grid did not show anything when zooming into the > > poles. > > While it behaves worse when zoomed out: both appearance and > > performance. I strongly hope that Fabien will fix the > > zoomed-out problems, although this is irrelevant for ESO. > > > > Johannes > > > > > > > > On 2007.05.08 00:59:20 CEST, Rob Spearman wrote: > > > What was the problem with the 0.8 version that required a > > complete > > > rewrite? I don't remember having problems even with a deep > > zoom. > > > > > > Rob > > > > > > On Mon, 2007-05-07 at 22:32 +0000, Johannes Gajdosik wrote: > > > > On 2007.05.07 23:54:06 CEST, Rob Spearman wrote: > > > > > > > > > > Here are some bugs I have noticed in SVN. Maybe we should > > maintain a > > > > > google spreadsheet for keeping easy track of these toward > > 0.9. Easier > > > > > than sourceforge. > > > > > > > > > > - in fisheye mode grid lines randomly turn on and off, > > sometimes just > > > > > spanning the viewport. > > > > > > > > Not only in fisheye mode. > > > > > > > > > Ecliptic seems to draw as a "D" most of the > > > > > time. > > > > > > > > As I said in the meeting, I submitted a bug-workaround for > > the ecliptic line > > > > being drawn around the sun with radius 1AE (which caused the > > strange > > > > corners in the ecliptic line). > > > > > > > > Concerning sky lines I must say that > > > > - the eliptic line wraps around the viewport. > > > > - The gridlines intersect in the north and south pole in a > > nasty starlike structure. > > > > Whereas in version 0.8 the gridlines faded out around the > > poles in order to avoid > > > > this effect. For me this is a regression. > > > > - Also I see wrap-arounds of grid lines, when FOV>180. > > > > - sometimes grid lines just diappear, especially with high > > FOV > > > > - In cylinder projection mode the grid lines are drawn > > totally strange/wrong. > > > > - The labes on the grid lines are very often hidden by the > > title bar. > > > > > > > > Johannes > > > > > > > > > > > ------------------------------------------------------------------------- > > > > This SF.net email is sponsored by DB2 Express > > > > Download DB2 Express C - the FREE version of DB2 express and > > take > > > > control of your XML. No limits. Just data. Click to get it > > now. > > > > http://sourceforge.net/powerbar/db2/ > > > > _______________________________________________ > > > > Stellarium-pubdevel mailing list > > > > Ste...@li... > > > > > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > -- > > > Digitalis Education Solutions, Inc. tel 360.616.8915 > > > P.O. Box 2976 fax 360.616.8917 > > > Bremerton, WA > > 98310 http://digitaliseducation.com > > > > > > > > > > > > > > > ------------------------------------------------------------------------- > > > This SF.net email is sponsored by DB2 Express > > > Download DB2 Express C - the FREE version of DB2 express and > > take > > > control of your XML. No limits. Just data. Click to get it > > now. > > > http://sourceforge.net/powerbar/db2/ > > > _______________________________________________ > > > Stellarium-pubdevel mailing list > > > Ste...@li... > > > > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and > > take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > _______________________________________________ > > Stellarium-pubdevel mailing list > > Ste...@li... > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > > > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > > _______________________________________________ > > Stellarium-pubdevel mailing list > > Ste...@li... > > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Stellarium-pubdevel mailing list > Ste...@li... > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > > > |