On Sat, May 01, 2004 at 10:08:18AM +0100, IvorW wrote:
----- Original Message ----- From: "Stephen Stewart" beowulf@carisenda.com To: ivorw-openguides@xemaps.com Sent: 30 April 2004 22:34 Subject: CGI::Wiki::Plugin::Locator::UTM OpenGuides
Hi,
What do I need to change in OpenGuides to use CGI::Wiki::Plugin::Locator::UTM
Excellent! Someone wants to use my module :). I designed it with OpenGuides in mind, but I have not integrated it yet. But, you are in luck. I have the time to work on this at the moment. I will update the dev CVS on un.earth.li, and also make patches available through this list.
(I want to use the modified airy ellipsoid to get better results)?
I don't know if "Modified Airy" is the right one to use, but it is certainly supported by Geo::Coordinates::UTM. My researches have shown "GRS 1980" as recommended as a generic ellipsoid for Europe.
The Modified Airy Ellipsoid id the one used for the OSIE/NI, so I'll try it first as it's the best fit for this island.
Also I changed Template.pm to use Geography::NationalGrid::IE but we don't have access to ox x/y coords, so what do I need to change to use long/lat coords?
Ah, Geography::NationalGrid is designed to only work with OS coordinates. I also think that lat/long is the way to go with OpenGuides as a whole, as everyone uses GPS, the world over.
Ahh poo. Yes, lat/long is the way forward - though os x/y is something you should keep in the back pocket, allowing the possibility of integration with COMPAS data for commercial use.
What is equally important though, is that the metadata stores an X and Y reference somehow. CGI::Wiki::Plugin::Locator::UTM uses metadata fields called zone, easting and northing. It is important that these fields are populated in the database, otherwise "find by distance" will never work.
C::W::P::L::U has been designed with this in mind. The current OpenGuides version uses CGI::Wiki::Plugin::Locator::UK, which relies on metadata fields called os-x and os-y being populated. I have deliberately used different field names, so that we can incorporate both sets of data in the same wiki. This is possibly a requirement for the UK.
Sorry, but my questions can't be very smart and I can't write patches, I'm just a designer trying to bodge this together.
Don't worry. If you can test the changes I am making to the modules, this would be brilliant.
Yes, I'll gladly do that. Anything to get find by distance working rsn!
Stephen