[OSRS-PROJ] Problem with geod sources
Gerald I. Evenden
gevenden at capecod.net
Fri Jun 9 13:52:42 EDT 2000
It looks like you are trying to determine the inverse usage of
geod (lat1 lon1 lat2 lon2 -> azi1 azi2 dist) but because the inverse
option (-I) is not specified, you are doing the forward (lat1 lon1 azi
lat2 lon2 azi2).
No comments until I see the correct inverse execution of:
geod -I +ellps=WGS84
and those input/output results.
I'm not saying geod is right or wrong but we got to make a
correct statement of out intents. It may well have a problem because
specifying either polar point creates *all sorts* of problems. ;-)
Jerry Evenden and the Low Riders, Katie and Daisy May
gevenden at capecod.net http://www.capecod.net/~gevenden
----- Original Message -----
From: Ildefonso Junquero <junquero at sainsel.es>
To: <osrs-proj at remotesensing.org>
Sent: Friday, June 09, 2000 12:37 PM
Subject: [OSRS-PROJ] Problem with geod sources
> I'm currently using Proj4 and found an error with geod the problem
> is that If I run:
> geod +ellps=WGS84
> and enter:
> 90s 0e 89s 0e
> 180d 0d 19892237.570 Is returned, and this is not a correct
> 90n 0e 89n 0e
> 0d 180d 19892237.570 Is returned, and this is not a correct
> 90n 0e 89s 0e
> 0d 180d 111693.865 Is returned, and this value is correct
> if it was 89n instead of 89s
> I'm using PROJ 4.4.1 in Windows NT SP5, Microsoft Visual C++6 SP3.
> Thank you for any help in advance.
> Best regards.
OSRS PRoject PROJ Discussion List
To Subscribe: send a message to majordomo at remotesensing.org with 'subscribe osrs-proj' in the body
To Unsubscribe: send a message to majordomo at remotesensing.org with 'unsubscribe osrs-proj' in the body
To Report Problems: send a message to owner-osrs-proj at remotesensing.org
More information about the Proj