[MetaCRS] CS-Map Conversion Errors
Owen Wengerd
owenw at manusoft.com
Fri Oct 14 01:40:23 EDT 2011
I'm a first time user of CS-Map. In testing the CS_cnvrt function, I
noticed small errors (on an order of several hundred feet) in converting
from LL to UTM coordinates. When I ran the CS_Test utility, it also
reported conversion errors. To try narrowing down the cause, I downloaded a
fresh set of files via SVN, built on both 64-bit and 32-bit versions of
Windows 7, using both Visual Studio 2010 and Visual Studio 2008, and both
Release and Debug configurations. In every case the solution built
apparently without errors, but in every case I received errors when
subsequently running the unit tests. Here is some sample output:
cs_test /d..\..\Dictionaries ..\..\Test\Test.dat
====================================================
Verification failure (line 992):
LL27 -135.000000000 60.666666667
LL83 -135.001868469 60.666373600
CALC -135.001917855 60.666382663
Verification failure (line 993):
LL27 -135.083333333 60.666666667
LL83 -135.085204461 60.666372736
CALC -135.085249270 60.666379468
Verification failure (line 994):
LL27 -135.000000000 60.750000000
LL83 -135.001874553 60.749708753
CALC -135.001919581 60.749716895
Verification failure (line 995):
LL27 -135.083333333 60.750000000
LL83 -135.085210281 60.749707872
CALC -135.085251603 60.749713956
Verification failure (line 996):
LL27 -135.041666667 60.708333333
LL83 -135.043539478 60.708040700
CALC -135.043584578 60.708048245
Test 4 failed (973 failures detected)!
Measuring performance: 300000 coordinates; UTM27-13 ==> CO83-C
Converted 300000 coordinates from UTM27-13 to CO83C in 0.16 seconds.
Effective conversion rate = 1935483 conversions per second.
====================================================
Am I doing something wrong, or are these tests no longer valid?
--
Owen Wengerd
ManuSoft
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