private Projection test(String filename, String ctvName, String varName, Class projClass)
throws IOException, InvalidRangeException {
System.out.printf("Open= %s%n", filename);
NetcdfDataset ncd = ucar.nc2.dataset.NetcdfDataset.openDataset(filename);
Variable ctv = null;
if (ctvName != null) {
ctv = ncd.findVariable(ctvName);
assert ctv != null;
System.out.println(" dump of ctv = \n" + ctv);
}
VariableDS v = (VariableDS) ncd.findVariable(varName);
assert v != null;
List<CoordinateSystem> cList = v.getCoordinateSystems();
assert cList != null;
assert cList.size() == 1;
CoordinateSystem csys = cList.get(0);
List<CoordinateTransform> pList = new ArrayList<CoordinateTransform>();
List<CoordinateTransform> tList = csys.getCoordinateTransforms();
assert tList != null;
for (int i = 0; i < tList.size(); i++) {
CoordinateTransform ct = tList.get(i);
if (ct.getTransformType() == TransformType.Projection) pList.add(ct);
}
assert pList.size() == 1;
CoordinateTransform ct = pList.get(0);
assert ct.getTransformType() == TransformType.Projection;
assert ct instanceof ProjectionCT;
ProjectionCT vct = (ProjectionCT) ct;
Projection proj = vct.getProjection();
assert proj != null;
assert projClass.isInstance(proj) : proj.getClass().getName();
VariableDS ctvSyn = CoordTransBuilder.makeDummyTransformVariable(ncd, ct);
System.out.println(" dump of equivilent ctv = \n" + ctvSyn);
if (ctv != null) {
Formatter f = new Formatter(System.out);
CompareNetcdf.checkContains(ctv.getAttributes(), ctvSyn.getAttributes(), f);
}
ncd.close();
return proj;
}
/**
* Find the class for the projection
*
* @param proj projection
* @return corresponding ProjectionClass (or null if not found)
*/
private ProjectionClass findProjectionClass(Projection proj) {
Class want = proj.getClass();
ComboBoxModel projClassList = projClassCB.getModel();
for (int i = 0; i < projClassList.getSize(); i++) {
ProjectionClass pc = (ProjectionClass) projClassList.getElementAt(i);
if (want.equals(pc.projClass)) {
return pc;
}
}
return null;
}