// We use RemoveGraphicalClasses here to remove these
// classes.
// FIXME: this could cause problem with RemoveGraphicalClasses
// elsewhere, but usually we run w/o _classesToRemove
RemoveGraphicalClasses filter = new RemoveGraphicalClasses();
filter.clear();
// _classesToRemove is an array of Strings where each element
// names a class to be added to the MoMLFilter for removal.
for (int i = 0; i < classesToRemoveToken.length(); i++) {
String classNameToRemove = ((StringToken) classesToRemoveToken
.getElement(i)).stringValue();