import com.interactive.intviewerapi.windows.TraceAxis;

    import com.interactive.intviewerapi.data.IKeyRange;

    import com.interactive.intviewerapi.data.IFieldDesc;

    ...

    // remove the current axes

    TraceAxis[] axes = xsectionWindow.getAllTraceAxis();

    for (TraceAxis axis: axes) {

         xsectionWindow.removeTraceAxis(axis.getFieldName());

    }

    List<IKeyRange> keyRangeList = layer.getData().getDataRange();

    // Add axis for INLINE

    IFieldDesc field = layer.getReader().getTraceHeaderField(keyRangeList.get(0).getName());

    if (field != null) {

        TraceAxis axis = new TraceAxis(field);

         xsectionWindow.addTraceAxis(axis);

    }

    // Add axis for XLINE

    field = layer.getReader(). getTraceHeaderField(keyRangeList.get(1).getName());

    if (field != null) {

        TraceAxis axis = new TraceAxis(field);

        xsectionWindow.addTraceAxis(axis);

    }