protected void
    recordVar(Variable cdm, DapVariable dap)
    {
        cdm = CDMUtil.unwrap(cdm);
        assert varmap.get(cdm) == null && varmap.get(dap) == null;
        varmap.put(cdm, dap);
    }
protected void recordVar ( Variable cdm , DapVariable dap ) { cdm = CDMUtil . unwrap ( cdm ) ; assert varmap . get ( cdm ) == null && varmap . get ( dap ) == null ; varmap . put ( cdm , dap ) ; }
Track Variable <-> DapVariable