[MetaCRS] RE: Quick and Dirty CSV File Version 00.10.10

[Norm Olsen]

Hello All . . .

To furthering the discussion with my suggestions:

Name = test name
Type = Test Type
SrcCrsTyp = source CRS authority
ScrCRS = source CRS code
ExpCrsTyp = expected CRS authority
ExpCrs = expected CRS code
SrcOrd1 = source ordinate 1
SrcOrd2 source ordinate 2
SrcOrd3= source ordinate 3
ExpOrd1 = expected destination ordinate 1
ExpOrd2= expected destination ordinate 2
ExpOrd3 = expected destination ordinate 3
TolOrd1 = suggested ordinate 1 tolerance
TolOrd2 = suggested ordinate 2 tolerance
TolOrd3= suggested ordinate 3 tolerance
Using  = name of specific data source that was used to generate the expected results.
DataSource = expected ordinate source
DataComments = comments concerning the data and/or data source, especially the tolerance values.
MaintenanceCmnt= comments concerning who did what and when to the test.  Original comment indicates who entered the test and when.

Currently acceptable values for SrcCrsTyp and TrgCrsTyp:

EPSG     -> implies a numeric designation
CSMAP -> implies a key name
PROJ4   -> ???
   ???      -> ???
   ???      -> ???

Currently acceptable values for  Type:

CRS2D                   -> two dimensional coordinate conversion
CRS3D                   -> three dimensional coordinate conversion
SCALEM               -> meridional grid scale
SCALEP                 -> parallel grid scale
CNVRG                 -> convergence angle (ExpOrd1 is convergence angle in degrees)
GEOID                   -> geoid height  (ExpOrd1 is geoid height always in meters)
VDTM                   -> vertical datum shift
DATUM                -> geodetic datum shift
GEOCTR               -> geocentric coordinate test
MGRS-F               -> Military Grid Reference System Forward (ExpOrd1 is a string)
MGRS-I                -> Military Grid Reference System Inverse (SrcOrd1 is a string)

I have changed my suggestion concerning Environment to what may be more useful:  Using.

That is, indicate the name(s) of the data source(s) which was/were used to generate the expected results whenever there may be some controversy.  BY controversy, I mean there are two Spanish .gsb files, indicate which one the test requires.  The NTv2-0.gsb file name could be given to indicate that access to that file is necessary for the test to succeed.  It could also be used to distringush between Canada's version 1 and version 2 (although version 1 is a pretty dead duck now).  Anyway, I suggesting a Using field as a replacement for an Environment field.  Entries in the Using field would be separated by space characters(???).

Examples:
NTv2-0.gsb
PE7783V2.gsb
G1999???.bin

What do you think?

Norm

From: metacrs-bounces at lists.osgeo.org [mailto:metacrs-bounces at lists.osgeo.org] On Behalf Of Landon Blake
Sent: Thursday, November 05, 2009 11:43 AM
To: metacrs at lists.osgeo.org
Subject: [MetaCRS] Quick and Dirty CSV File Version 00.10.10

I have attached a revised version of the CSV file. Thank you for the fine comments.

This is the value of working with a group. :]

Here are a list of the column name abbreviations that I used:

tn = test name
scrsa = source CRS authority
scrsc = source CRS code
dcrsa = destination CRS authority
dcrsc = destination CRS code
so1 = source ordinate 1
so2 - source ordinate 2
so3 = source ordinate 3
edo1 = expected destination ordinate 1
edo2 = expected destination ordinate 2
edo3 = expected destination ordinate 3
o1t = suggested ordinate 1 tolerance
o2t = suggested ordinate 2 tolerance
o3t = suggested ordinate 3 tolerance
er = environment requirements
eos = expected ordinate source
com = comments

Hopefully we are getting closer.

Landon



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