Template talk:Longlat

Hi!

There is a GREAT ERROR: The longitude & latitude had changed !!!! 78.92.8.112 (talk) 09:51, 16 July 2008 (UTC)[reply]

What? Bazonka (talk) 19:35, 10 August 2009 (UTC)[reply]

Choice of map

The map used in this template is inappropriate - it is waaaay too detailed to be used at such a scale. What's needed is a map with simple land outlines and major lat and long lines. No political borders, no annotation etc. If I find a decent one, I'll replace this - can't find anything at the moment though... Bazonka (talk) 19:37, 10 August 2009 (UTC)[reply]

I've just reverted to the original PNG version of the map. My goodness, it looks better than the SVG. I think it's still too detailed, but it's a hell of an improvement. Bazonka (talk) 19:39, 10 August 2009 (UTC)[reply]

On a closer glance, I think you're right in terms of the looks, it does look better then the other one but it would be better to have an SVG map instead of a PNG mainly for ease of use. Mind you since this is an SVG map, it should be quite straightforward to remove all the unecessary bit leaving just what is needed. Thanks. Set Sail For The Seven Seas 196° 1' 0" NET 13:04, 11 August 2009 (UTC)[reply]

I think I've found a suitable SVG map for the template, but it needs a little tidying up first. Set Sail For The Seven Seas 182° 1' 45" NET 12:08, 16 August 2009 (UTC)[reply]

Here is the tidied up version of the proposed SVG map. Set Sail For The Seven Seas 189° 47' 30" NET 12:39, 16 August 2009 (UTC)[reply]

That is a great improvement. But can I suggest that the latitude and longitude lines are made more prominent (thicker and/or darker), since that's what the map is about. Also, the international boundaries in Asia seem to be darker than all of the others - seems a bit weird. I question why any international borders are needed anyway. Cheers. Bazonka (talk) 15:38, 16 August 2009 (UTC)[reply]

Here is the resulting SVG map after removing the borders and thickening the latitude and longitude lines. Set Sail For The Seven Seas 187° 46' 15" NET 12:31, 19 August 2009 (UTC)[reply]

Excellent - that's spot-on. Good work. Bazonka (talk) 12:46, 19 August 2009 (UTC)[reply]

This template is wrong

This template is wrong. Meridians and parallels cannot be defined from projections. On the projection shown the meridians/parallel are almost vertical/horiz but this is not true in general, particularly in the important Transverse Mercator projection where the meridians are complex curves and the parallels are closed curves taking all possible directions. The definition in terms of the graticule (as given in the lead of Latitude is more fundamental: it is independent of the projection used. The practical definition and modes of measurement are in terms of the graticule (on a sphere or ellipsoid). This template should be deleted. It should also be removed from Longitude. Peter Mercator (talk) 23:12, 15 February 2015 (UTC)[reply]