Ticket #93 (closed defect: fixed)

Opened 2 years ago

Last modified 2 years ago

Inaccurate values in pj_auth.c

Reported by: tharan Owned by: warmerdam
Priority: major Milestone: 4.8.0
Component: Core Version: Development (trunk)
Keywords: auth Cc:

Description

Checked out proj4 development version 1962 on 2011/02/04. Running make using cc --version cc (SUSE Linux) 4.3.2 [gcc-4_3-branch revision 141291] on uname -a Linux snow 2.6.27.54-0.2-default #1 SMP 2010-10-19 18:40:07 +0200 x86_64 x86_64 x86_64 GNU/Linux.

Replaced Pxx values used by inverse CEA ellipsoid with more accurate values, and added comments that document the exact ratios that the Pxx values represent. In particular, the old value of P20 .01641501294219154443 was apparently a representation of the incorrect ratio 761 / 46360. The correct ration (from Snyder pg 82 is 761 / 45360 represented by the new value .01677689594356261023.

Attachments

pj_auth.c Download (0.8 KB) - added by tharan 2 years ago.

Change History

Changed 2 years ago by tharan

Changed 2 years ago by warmerdam

  • keywords auth added
  • resolution set to fixed
  • status changed from new to closed
  • component changed from default to Core
  • milestone set to 4.8.0

Change applied in trunk (r1966). I will email Gerald to ensure the P20 change makes sense to him.

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