Hi Mark:
you cant have an attribute with an array of Strings, only arrays of numbers are
allowed. put it all in one string, and decode it when you read, eg
String v = "one, two";
ncFile.addVariableAttribute("edrmap", "units", v.getBytes());
when you read, you can use java.lang.StringTokenizer to break into tokens:
Attribute att = edrmapVar.findAttribute("units");
String val = att.getStringValue();
StringTokenizer st = new StringTokenizer(val, ", ");
while (st.hasMoreTokens()) {
println(st.nextToken());
}
/**
* Add an attribute of type Array to the named Variable. Must be in define
mode.
*
* @param String varName: name of attribute. IllegalArgumentException if not
valid name.
* @param String attName: name of attribute.
* @param Object value: must be 1D array of double, float, int, short, char,
or byte
*/
public void addVariableAttribute(String varName, String attName, Object value) ;
Mark A Ohrenschall wrote:
Hello,
I'm trying to define an array-valued variable attribute, e.g.,
ncFile.addVariableAttribute("edrmap", "units", new String []
{"one", "two"});
But I get a run-time error:
Exception in thread "main" java.lang.IllegalArgumentException: Invalid Type:
class java.lang.String
at ucar.netcdf.Attribute.<init>(Attribute.java:129)
at
ucar.nc2.NetcdfFileWriteable.addVariableAttribute(NetcdfFileWriteable.java:214)
at edrmap.Edrmap.<init>(Edrmap.java:99)
at edrmap.Edrmap.main(Edrmap.java:121)
I'm able to pass in an array of ints. The API documentation for
addGlobalAttribute includes "Remark: this looks buggy; allowed types
unclear." Perhaps this is true for addVariableAttribute as well?
I'm using 2.10 beta of the (Java) netCDF library.
Thanks,
Mark Ohrenschall
