[OpenLayers-Users] Displaying a latitude & longitude grid

[Tim Schaub]

Hey-

Andy Dale wrote:
> Hi,
> 
> To provide the user with some feedback as to their current 
> position/coordinates with the OpenLayers.Control.MousePosition control, 
> and this works well.
> 
> However I now have the need to be able to display a grid of 
> longitude/latitude lines along with labels, the size of the grid should 
> also be configurable based upon the current zoom level. 
> I was wondering if openlayers currently has this ability ? If not what 
> is the best way to approach this, a shape file of some kind ? or 
> actually let openlayers do it with a vector layer with multiple line 
> features ?

This is called a graticule.  A search for "openlayers graticule" leads 
me to a control that Christopher is working on in a sandbox [1].  You 
can take a look at the example to see if it's close to what you're 
talking about [2].

So, with what is in the trunk, you could make your own (following the 
code above is advised :) - or you could download that Graticule control 
class and try it out (if you're willing to play with work in development).

Tim

[1] 
http://trac.openlayers.org/browser/sandbox/crschmidt/grat/lib/OpenLayers/Control/Graticule.js

[2] http://dev.openlayers.org/sandbox/crschmidt/grat/examples/graticule.html

> 
> Any advice/help is greatly appreciated,


> 
> Andy
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