.aux files with MapInformation instead of Map_Info lack units handling

[warmerdam]

A .aux file with the following MapInformation? entry was incorrectly reported as being in meters instead of feet:

The entry looks like:

    MapInformation(Eimg_MapInformation) @ 2212 + 81 @ 2340
    + projection = 
    +     string = `NAD_1983_StatePlane_Virginia_North_FIPS_4501_Feet'
    + units = 
    +     string = `us_survey_feet'

The gdalinfo report looks like:

PROJCS["NAD83 / Virginia North",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","6269"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.01745329251994328,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4269"]],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["standard_parallel_1",39.2],
    PARAMETER["standard_parallel_2",38.03333333333333],
    PARAMETER["latitude_of_origin",37.66666666666666],
    PARAMETER["central_meridian",-78.5],
    PARAMETER["false_easting",3500000],
    PARAMETER["false_northing",2000000],
    UNIT["metre",1,

[warmerdam]

On review it seems the problem is that GDAL was looking for the "Map_Info" entry for units information. But when the XForm stuff is used the Map_Info node does not appear, and the MapInformation? node is used instead.

I have modified the code to look for MapInformation? in trunk (rxxx).

Need to consider writing a test case (need redistributable data) and possibly back porting the change.

[warmerdam]

The last change was r12619.

[warmerdam]

.aux file demonstrating the problem.

[warmerdam]

Added a test to trunk autotest (autotest/gdrivers/hfa.py - hfa_mapinformation_units) (r12620).

Ported test to 1.4-esri branch as r12621.