/**
* tokenize the pattern string as a numeric range
*
* @return min max range values
* @throws Exception On badness
*/
public Real[] getNumericRange() throws Exception {
if (range == null) {
range = new Real[] {null, null};
List toks = StringUtil.split(pattern, ",");
if (toks.size() == 0) {
throw new IllegalStateException("Bad format for numeric range:" + pattern);
}
String tok1 = toks.get(0).toString();
String tok2 = ((toks.size() == 1) ? tok1 : toks.get(1).toString());
range[0] = ucar.visad.Util.toReal(tok1);
range[1] = ucar.visad.Util.toReal(tok2);
}
return range;
}
