ColorModel cm = null;
if (((String) jComboBoxColor.getSelectedItem ()).equals ("gray"))
cm = new ColorModelGray ();
if (((String) jComboBoxColor.getSelectedItem ()).equals ("heat"))
cm = new ColorModelHeat ();
else
cm = new ColorModelMotley ();
if (((String) jComboBoxScale.getSelectedItem ()).equals ("none"))
scaler = new ScalerNone ();