View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0001311||SkyChart||1-Software||public||14-03-31 09:36||14-04-02 18:04|
|Reporter||Mark9473||Assigned To||Patrick Chevalley|
|Priority||normal||Severity||minor||Reproducibility||have not tried|
|Product Version||3.11 SVN|
|Target Version||4.0||Fixed in Version||3.11 SVN|
|Summary||0001311: RA grid spacing not adjustable|
|Description||Tried this on most chart sizes:|
- DEC grid spacing changes do correctly adjust the grid seen on the chart;
- RA grid spacing changes do NOT take effect.
|Tags||No tags attached.|
Yes, the RA grid spacing value is only use in equatorial projection, this always worked this way.
The azimuth grid spacing in Alt/Az mode, or the longitude grid in ecliptic or galactic mode is based on the setting for the declination, adjusted for the latitude of the chart center to avoid too close line near the poles.
The reason is that both of azimuth and longitude are using the same degree units as the declination, altitude or latitude.
But RA use hour units so it give weird result if one try to use the same spacing as the declination. For example if the declination spacing is 25° the RA grid spacing would be 1h40m, it is better to set it to 2h00m and this is the reason for the separate setting.
My question: do you really need a separate setting for the azimuth/longitude ?
Or is the problem solved by a better wording of the setup screen ?
Maybe replace "Declination grid" by "Declination, altitude, latitude, azimuth, longitude"
I agree that in alt-az mode it is best to have the same spacing in both directions.
And its not something I really need; I just thought it wasn't working.
I had just one or two screens where I felt I wanted to adjust the spacing to get a more square grid. Nothing essential.
For example on a 10° FOV I am no looking at 1° alt gridlines and 2°30' az gridlines. This is pretty far from a square grid.
But as I said, nothing essential.
You could write underneath Right Ascension Grid something like "only used on EQ charts".
The problem for non square grid is fixed in revision 2857:
And I make clarification of the setup screen in revision 2858:
|14-03-31 09:36||Mark9473||New Issue|
|14-04-01 09:07||Patrick Chevalley||Note Added: 0002849|
|14-04-01 09:07||Patrick Chevalley||Assigned To||=> Patrick Chevalley|
|14-04-01 09:07||Patrick Chevalley||Status||new => feedback|
|14-04-01 11:26||Mark9473||Note Added: 0002850|
|14-04-01 11:26||Mark9473||Status||feedback => assigned|
|14-04-02 18:04||Patrick Chevalley||Note Added: 0002851|
|14-04-02 18:04||Patrick Chevalley||Status||assigned => resolved|
|14-04-02 18:04||Patrick Chevalley||Resolution||open => fixed|
|14-04-02 18:04||Patrick Chevalley||Fixed in Version||0.3.0 => 3.11 SVN|
|14-04-02 18:04||Patrick Chevalley||Target Version||0.3.0 => 4.0|