Order Tray | Contact Us | Home | SIG Lists

[aprssig] Geo Files

AE5PL Lists HamLists at ametx.com
Sun Feb 26 03:58:11 UTC 2006


> -----Original Message-----
> From: Bill Diaz
> Posted At: Saturday, February 25, 2006 8:21 PM
> Subject: RE: [aprssig] Geo Files
> 
> Irregardless of what application is using the Ridge files, 
> the application should use the map reference provided by the 
> authors.  Obviously, the Geo Files should use the center of 
> the upper left pixel as a reference point to calculate the 
> other needed points.
> 
> I offered to provide you the ridge table earlier but you were 
> not interested.  FindU used the RIDGE table I provided to 
> generate the needed references.  I would be happy to provide 
> the table to anyone who requests it.  

Bill,

Apparently, you do not understand my original post nor do you understand
the table that I offered and have now posted with the assumption that
findU, WinAPRS, etc. use the center of the pixel for THEIR geo files.  I
had already imported ALL of the RIDGE world files into a database using
their statement that THEIR files reference the center of pixel 0,0.  The
issue that you apparently are unable to answer is "WHAT DO PROGRAMS SUCH
AS WINAPRS, UI-VIEW, AND FINDU ASSUME TO BE USED FOR THEIR GEO FILE
COORDINATES: CENTER OR CORNER OF THE PIXEL?"  I am sorry to this list
for the shout, but Bill obviously is clueless as to what this question
means.  Bill, if you don't know the answer to THAT question, then quit
making your idiotic, self-serving posts.

I have been working with the RIDGE stuff for a long time and am trying
to make it easier for OTHER people to use the "lite" images for
applications that can't work easily with the overlay system.  The table
is at http://www.aprs-is.net/wx/RIDGEGeo.asp for those that are
interested in making their own geo files.

73,

Pete Loveall AE5PL
mailto:pete at ae5pl.net 




More information about the aprssig mailing list