[Geotools-devel] CRS.parseText fails for WagnerV WKT

[jerickson <jar...@gm...>]

Hi all!

I have been investigating GeoTool's Projection support and found that
CRS.parseText() fails for WagnerV WKT.  It seems that an entry is missing in
the org.geotools.referencing.opereation.MathTransformProvider SPI.  If I add
the following entry

org.geotools.referencing.operation.projection.Mollweide$WagnerVProvider

to
https://github.com/geotools/geotools/blob/master/modules/library/referencing/src/main/resources/META-INF/services/org.geotools.referencing.operation.MathTransformProvider#L50

CRS.parseText("PROJCS[\"Wagner_V\", ... ]") works.  Otherwise it fails.  I
can submit a pull request but I was wondering about a test.  Would something
like this work?

@Test
    public void parseWKT() throws Exception {
        String[] wkts = {
                "PROJCS[\"Wagner_IV\", GEOGCS[\"WGS84\",  DATUM[\"WGS84\", 
SPHEROID[\"WGS84\",  6378137.0, 298.257223563]], PRIMEM[\"Greenwich\", 0.0],
UNIT[\"degree\",0.017453292519943295], AXIS[\"Longitude\",EAST],
AXIS[\"Latitude\",NORTH]], PROJECTION[\"Wagner_IV\"], UNIT[\"m\", 1.0],
AXIS[\"Easting\", EAST], AXIS[\"Northing\", NORTH]]",
                "PROJCS[\"Wagner_V\", GEOGCS[\"WGS84\",  DATUM[\"WGS84\", 
SPHEROID[\"WGS84\",  6378137.0, 298.257223563]], PRIMEM[\"Greenwich\", 0.0],
UNIT[\"degree\",0.017453292519943295], AXIS[\"Longitude\",EAST],
AXIS[\"Latitude\",NORTH]], PROJECTION[\"Wagner_V\"], UNIT[\"m\", 1.0],
AXIS[\"Easting\", EAST], AXIS[\"Northing\", NORTH]]"
        };
        for(String wkt : wkts) {
            assertNotNull(CRS.parseWKT(wkt));
        }
    }

Thanks,
Jared



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