[netcdf-java] typo causing bug in ucar.nc2.dataset.transform.UTM

John -

Not sure if Variable.findAttribute does a trim() or not on incoming attribute names, but if not, the extra space in "inverse_flattening " is definitely a bug that should be fixed. Even if benign, it should probably be changed. Full class included below so
you can see what I mean - it's a very short file...


/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
 *
 * Portions of this software were developed by the Unidata Program at the
 * University Corporation for Atmospheric Research.
 *
 * Access and use of this software shall impose the following obligations
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 * any fee or cost, to use, copy, modify, alter, enhance and distribute
 * this software, and any derivative works thereof, and its supporting
 * documentation for any purpose whatsoever, provided that this entire
 * notice appears in all copies of the software, derivative works and
 * supporting documentation.  Further, UCAR requests that the user credit
 * UCAR/Unidata in any publications that result from the use of this
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 * to endorse or promote any products or commercial entity unless specific
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 * WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package ucar.nc2.dataset.transform;

import ucar.nc2.dataset.CoordinateTransform;
import ucar.nc2.dataset.ProjectionCT;
import ucar.nc2.dataset.TransformType;
import ucar.nc2.dataset.NetcdfDataset;
import ucar.nc2.Variable;
import ucar.nc2.Attribute;
import ucar.unidata.geoloc.projection.UtmProjection;

/**
* Create a UTM Projection from the information in the Coordinate Transform Variable.
 *  *
 * @author caron
 */
public class UTM extends AbstractCoordTransBuilder {

  public String getTransformName() {
    return "UTM";
  }

  public TransformType getTransformType() {
    return TransformType.Projection;
  }

public CoordinateTransform makeCoordinateTransform(NetcdfDataset ds, Variable ctv) { int zone = (int) readAttributeDouble( ctv, "utm_zone_number", Double.NaN);
    boolean isNorth = zone > 0;
    zone = Math.abs(zone);

    Attribute a;
    double axis = 0.0, f = 0.0;
    if (null != (a = ctv.findAttribute( "semimajor_axis")))
      axis = a.getNumericValue().doubleValue();
    if (null != (a = ctv.findAttribute( "inverse_flattening ")))
      f = a.getNumericValue().doubleValue();

    // double a, double f, int zone, boolean isNorth
UtmProjection proj = (axis != 0.0) ? new UtmProjection(axis, f, zone, isNorth) : new UtmProjection(zone, isNorth);
    return new ProjectionCT(ctv.getShortName(), "FGDC", proj);
  }
}

--
Tommy Jasmin
Space Science and Engineering Center
University of Wisconsin, Madison
1225 West Dayton Street, Madison, WI 53706



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