Skip Menu |

This queue is for tickets about the Geo-Coordinates-UTM CPAN distribution.

Report information
The Basics
Id: 82893
Status: resolved
Priority: 0/
Queue: Geo-Coordinates-UTM
People
Owner: grahamc [...] cpan.org
Requestors: dave.steele [...] gmail.com
Cc:
AdminCc:
Bug Information
Severity: Important
Broken in: 0.09
Fixed in: 0.10

History Show all quoted text
  Wed Jan 23 00:43:29 2013 dave.steele [...] gmail.com - Ticket created
Subject: mgrs_to_utm function southern hemisphere
Date: Wed, 23 Jan 2013 15:42:53 +1000
To: bug-Geo-Coordinates-UTM [...] rt.cpan.org
From: David Steele <dave.steele [...] gmail.com>
It seems there is an issue with the mgrs_to_utm function when converting locations in the southern hemisphere. For example passing latitude -19.4574 longtitude 146.4264 to the latlon_to_mgrs function correctly returns the MGRS of 55KDU3979548461. However feeding this MGRS back into the mgrs_to_latlon function returns -1.3709 146.4588. I've found that commenting out line 384 of the module which is advancing $tmpNorth by one in the mgrs_to_utm function corrects this. As I don't fully understand the math of this conversion I'm not sure if this solution will work for all zone letters, but hopefully can point in the right direction for a fix.
  Thu Feb 21 12:27:29 2013 grahamc [...] cpan.org - Status changed from 'new' to 'open'
  Thu Feb 21 12:28:29 2013 grahamc [...] cpan.org - Severity Important added
  Thu Feb 21 12:28:29 2013 grahamc [...] cpan.org - Broken in 0.09 added
  Mon Mar 25 15:53:31 2013 grahamc [...] cpan.org - Taken
  Tue Mar 26 05:25:57 2013 grahamc [...] cpan.org - Fixed in 0.10 added
  Tue Mar 26 05:28:44 2013 grahamc [...] cpan.org - Correspondence added
S. Hemisphere calculations amended in version 0.10 Also added in some MGRS calculation tests
  Tue Mar 26 05:28:46 2013 grahamc [...] cpan.org - Status changed from 'open' to 'resolved'