[FWTools] NADCON error

[Newman, Michael]

I found that the latest version of fwtools (FWTools113.exe) is not
converting between NAD83 and NAD27 properly (NADCON algorithm).

 

Here's what the latest version does (incorrect):

------------\

C:\Documents and Settings\mnewman>cs2cs

Rel. 4.5.0, 22 Oct 2006

usage: cs2cs [ -eEfIlrstvwW [args] ] [ +opts[=arg] ]

                   [+to [+opts[=arg] [ files ]

 

C:\Documents and Settings\mnewman>cs2cs +proj=utm +zone=18 +datum=NAD83
+to +pro

j=utm +zone=18 +datum=NAD27

658567.53 4563801.39

658541.92       4563578.46 -0.00

------------/

 

An older version (FWTools1.0.0) I have on another computer does it
correctly:

-------------\

C:\Documents and Settings\MNewman>cs2cs

Rel. 4.5.0, 19 Apr 2006

usage: cs2cs [ -eEfIlrstvwW [args] ] [ +opts[=arg] ]

                   [+to [+opts[=arg] [ files ]

                   

C:\Documents and Settings\MNewman>cs2cs +proj=utm +zone=18 +datum=NAD83
+to +pro

j=utm +zone=18 +datum=NAD27

658567.53 4563801.39

658534.59       4563577.59 -0.00

-------------/

 

Is there possibly something I did wrong?

Note I have the respective "bin" directories in my PATH environment
variables...

 

-Mike

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