<map id="Graphical Class Hierarchy" name="Graphical Class Hierarchy"> <area shape="rect" id="node1" href="$class_qwt_series_data.html" title="QwtSeriesData\< QwtOHLCSample \>" alt="" coords="5,13,248,39"/> <area shape="rect" id="node2" href="$class_qwt_array_series_data.html" title="QwtArraySeriesData\l\< QwtOHLCSample \>" alt="" coords="296,5,447,47"/> <area shape="rect" id="node3" href="$class_qwt_trading_chart_data.html" title="QwtTradingChartData" alt="" coords="495,13,649,39"/> </map>