[OpenLayers-Users] Measure Distance? Ruler?

[Mike Adair]

FYI, I'm hoping to have the Proj4js (or cscs) library finished up in a 
few weeks so you should also be able to use that to convert point coords 
between projections, and do the math in map projected space.

Proj4js is a port of Proj4 to Javascript, and will use 
spatialreference.org for lookup of projection parameters, if a 
particular projection isn't known already and it includes datum transforms.

Mike


Erik Uzureau wrote:
> PS. If anyone is considering building this and would like to share the
> code with the OL repository, we would (again) be delighted. Please
> contact me or any of the other PSC members and we can set you up with
> wiki/trac passwords, access to a sandbox, and help you with
> code/design decisions.
>
>
>
> On 8/21/07, Erik Uzureau <erik.uzureau at metacarta.com> wrote:
>   
>> all:
>>
>> Here is the official ticket in OL's TRAC for the path measuring tool:
>> http://trac.openlayers.org/ticket/173
>>
>> There is also an open ticket for an *area* measuring tool:
>> http://trac.openlayers.org/ticket/782
>>
>> Erik
>>
>>
>> On 8/20/07, Chris Hardin <chrislhardin at gmail.com> wrote:
>>     
>>> It's been quite accurate for me.
>>>
>>>
>>>
>>> On 8/20/07, Lance Dyas <lancelot at inetnebr.com> wrote:
>>>       
>>>> There is accurate distance measurement using the Vincenty distance
>>>> formula...
>>>> Haverine is umm simulating the earth as sphere and is not accurate.
>>>> What Open Layers lacks is a gui for measurement.
>>>>
>>>>         
>>> --
>>> Chris Hardin
>>> Software Architect
>>> Archetype Corporation
>>>
>>>       
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
>
>
>