{"id":102190,"date":"2026-09-08T09:57:08","date_gmt":"2026-09-08T01:57:08","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/102190.html"},"modified":"2026-09-08T09:57:08","modified_gmt":"2026-09-08T01:57:08","slug":"gpl%e6%b1%a1%e6%9f%93%e5%8d%b1%e6%9c%ba_qcustomplot%e8%bf%81%e7%a7%bb%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/102190.html","title":{"rendered":"GPL\u6c61\u67d3\u5371\u673a_QCustomPlot\u8fc1\u79fb\u5b9e\u6218"},"content":{"rendered":"

Qt \u5de5\u4e1a\u8f6f\u4ef6 GPLv3 \u6c61\u67d3\u5371\u673a：QCustomPlot \u2192 Qt Charts \u8fc1\u79fb\u5b9e\u6218<\/h2>\n

\u5de5\u4e1a\u8f6f\u4ef6\u8981\u5546\u4e1a\u5316，\u8bb8\u53ef\u8bc1\u5408\u89c4\u662f\u5fc5\u7ecf\u4e4b\u8def\u3002QCustomPlot \u7684 GPLv3 \u8bb8\u53ef\u7ed9\u95ed\u6e90\u4ea7\u54c1\u57cb\u4e0b\u4e86\u9690\u60a3\u3002\u672c\u6587\u8be6\u8ff0 PLCMonitor \u5982\u4f55\u4ece QCustomPlot \u8fc1\u79fb\u5230 Qt Charts（LGPLv3），\u6d88\u9664 GPL \u6c61\u67d3，\u4ee5\u53ca\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u7684 API \u6620\u5c04\u548c\u5751\u70b9\u3002<\/p>\n

\u514d\u8d23\u58f0\u660e：\u672c\u6587\u4ec5\u63cf\u8ff0 PLCMonitor \u81ea\u8eab\u60c5\u51b5，\u4e0d\u6784\u6210\u6cd5\u5f8b\u5efa\u8bae\u3002\u4ee5\u4f60\u6700\u7ec8\u91c7\u8d2d\u7684\u6cd5\u5f8b\u610f\u89c1\u4e3a\u51c6\u3002<\/p>\n

\n

\u672c\u6587\u76ee\u5f55： \u2460GPLv3 \u98ce\u9669 \u2461API \u6620\u5c04 \u2462\u5b9e\u65bd\u6b65\u9aa4 \u2463\u6838\u5fc3\u4ee3\u7801 Diff \u2464\u98ce\u9669\u70b9 \u2465\u7ed3\u8bed<\/p>\n

\n

\u2460 GPLv3 \u98ce\u9669：\u4e3a\u4ec0\u4e48\u5fc5\u987b\u8fc1\u79fb？<\/h3>\n

1.1 \u4ec0\u4e48\u662f GPL \u6c61\u67d3<\/h4>\n

GPL（General Public License）\u662f\u6700\u4e25\u683c\u7684\u5f00\u6e90\u8bb8\u53ef\u8bc1\u4e4b\u4e00\u3002\u6838\u5fc3\u6761\u6b3e：<\/p>\n

\u884d\u751f\u4f5c\u54c1\u5fc5\u987b\u540c\u6837\u4ee5 GPL \u53d1\u5e03<\/p>\n

\u8fd9\u610f\u5473\u7740：\u5982\u679c\u4f60\u7684\u8f6f\u4ef6\u94fe\u63a5\u4e86 GPLv3 \u7684\u5e93，\u4f60\u7684\u6574\u4e2a\u8f6f\u4ef6\u90fd\u5fc5\u987b\u5f00\u6e90\u3002<\/p>\n

\u5bf9\u4e8e\u5546\u4e1a\u5de5\u4e1a\u8f6f\u4ef6，\u8fd9\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u3002<\/p>\n

1.2 QCustomPlot \u7684\u95ee\u9898<\/h4>\n

QCustomPlot \u662f\u4e00\u4e2a\u4f18\u79c0\u7684 2D \u7ed8\u56fe\u5e93，\u529f\u80fd\u5f3a\u5927\u3001API \u7b80\u6d01\u3002\u4f46\u5b83\u91c7\u7528 GPLv3 \u8bb8\u53ef：<\/p>\n

QCustomPlot – a modern Qt plotting widget
\nCopyright (C) 2011-2024 Emil Frey<\/p>\n

This program is free software: you can redistribute it and\/or modify
\nit under the terms of the GNU General Public License as published by
\nthe Free Software Foundation, either version 3 of the License.<\/p>\n

\u4e00\u65e6\u94fe\u63a5 QCustomPlot，PLCMonitor \u5c31\u5fc5\u987b：<\/p>\n

  • \u5f00\u6e90\u5168\u90e8\u6e90\u7801<\/li>\n
  • \u6216\u4ee5\u5546\u4e1a\u8bb8\u53ef\u8d2d\u4e70\u6388\u6743（QCustomPlot \u4e0d\u63d0\u4f9b\u5546\u4e1a\u8bb8\u53ef）<\/li>\n

    1.3 \u5f71\u54cd\u8303\u56f4\u8bc4\u4f30<\/h4>\n

    \u8fc1\u79fb\u524d，\u5148\u8bc4\u4f30\u5f71\u54cd\u8303\u56f4：<\/p>\n

    \u76f4\u63a5\u4f9d\u8d56\u6587\u4ef6：
    \n\u251c\u2500\u2500 src\/ui\/widgets\/chartpanel.h \u2190 #include "qcustomplot.h"
    \n\u251c\u2500\u2500 src\/ui\/widgets\/chartpanel.cpp \u2190 \u5168\u90e8 QCustomPlot API \u8c03\u7528
    \n\u251c\u2500\u2500 src\/app\/CMakeLists.txt \u2190 \u7f16\u8bd1 QCustomPlot \u6e90\u7801
    \n\u251c\u2500\u2500 CMakeLists.txt（\u9876\u5c42） \u2190 \u9700\u8981\u6dfb\u52a0 Charts \u7ec4\u4ef6
    \n\u2514\u2500\u2500 src\/common\/qcustomplot.h\/.cpp \u2190 GPL \u6e90\u7801，\u9700\u5220\u9664<\/p>\n

    \u95f4\u63a5\u5f71\u54cd（\u65e0\u9700\u4fee\u6539）：
    \n\u251c\u2500\u2500 src\/ui\/models\/ChartManager \u2190 \u7eaf\u6570\u636e\u7ba1\u7406
    \n\u251c\u2500\u2500 src\/ui\/models\/TrendManager \u2190 \u7eaf\u6570\u636e\u7ba1\u7406
    \n\u2514\u2500\u2500 src\/app\/mainwindow \u2190 \u53ea\u901a\u8fc7 customChart() \u8c03\u7528\u622a\u56fe<\/p>\n

    \u7ed3\u8bba：\u9700\u8981\u4fee\u6539\u7684\u6838\u5fc3\u6587\u4ef6\u53ea\u6709 4 \u4e2a，\u5220\u9664 2 \u4e2a\u6587\u4ef6\u3002<\/p>\n

    1.4 \u5de5\u4f5c\u91cf\u5bf9\u6bd4<\/h4>\n\n\u7c7b\u522b\u884c\u6570\u53d8\u5316\u8bf4\u660e<\/tr>\n\n\n\n\n\n
    \u5220\u9664 QCustomPlot<\/td>\n-3500<\/td>\nqcustomplot.h\/.cpp + chartpanel \u4e2d\u76f8\u5173\u4ee3\u7801<\/td>\n<\/tr>\n
    \u65b0\u589e Qt Charts<\/td>\n+213<\/td>\n\u5934\u6587\u4ef6\u66ff\u6362 + setupUI + \u6570\u636e\u66f4\u65b0<\/td>\n<\/tr>\n
    CMakeLists \u4fee\u6539<\/td>\n\u00b110<\/td>\n\u7ec4\u4ef6\u58f0\u660e + \u94fe\u63a5\u5e93<\/td>\n<\/tr>\n
    \u51c0\u6548\u679c<\/td>\n-3287<\/td>\n\u4ee3\u7801\u91cf\u51cf\u5c11，\u8bb8\u53ef\u8bc1\u98ce\u9669\u5f52\u96f6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    \u2461 API \u6620\u5c04：QCustomPlot \u2192 Qt Charts<\/h3>\n

    \u6838\u5fc3\u7c7b\u578b\u6620\u5c04<\/h4>\n\nQCustomPlot \u7c7b\u578bQt Charts \u5bf9\u5e94\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n
    QCustomPlot<\/td>\nQChartView + QChart<\/td>\nChart \u662f\u6570\u636e\u6a21\u578b，View \u662f\u89c6\u56fe\u7ec4\u4ef6<\/td>\n<\/tr>\n
    QCPGraph<\/td>\nQLineSeries<\/td>\n\u7ebf\u56fe\u7cfb\u5217<\/td>\n<\/tr>\n
    QCPAxis<\/td>\nQValueAxis \/ QDateTimeAxis<\/td>\nX \u8f74\u5efa\u8bae\u7528 DateTime<\/td>\n<\/tr>\n
    QCPAxisRect<\/td>\n\u4e0d\u518d\u9700\u8981<\/td>\nQChartView \u81ea\u52a8\u7ba1\u7406\u5e03\u5c40<\/td>\n<\/tr>\n
    QCPGrid<\/td>\nQValueAxis::setGridLineVisible()<\/td>\n\u7f51\u683c\u7ebf\u901a\u8fc7 Axis \u63a7\u5236<\/td>\n<\/tr>\n
    legend<\/td>\nQChart::legend()<\/td>\n\u56fe\u4f8b\u7531 Chart \u7ba1\u7406<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5173\u952e\u65b9\u6cd5\u6620\u5c04<\/h4>\n\nQCustomPlot APIQt Charts \u7b49\u6548<\/tr>\n\n\n\n\n\n\n\n\n
    plot->addGraph(xAxis, yAxis)<\/td>\nseries = new QLineSeries; chart->addSeries(series)<\/td>\n<\/tr>\n
    graph->setPen(pen)<\/td>\nseries->setPen(pen)<\/td>\n<\/tr>\n
    graph->setData(x, y)<\/td>\nseries->replace(x.begin(), x.end(), y.begin(), y.end())<\/td>\n<\/tr>\n
    graph->data()->clear()<\/td>\nseries->clear()<\/td>\n<\/tr>\n
    plot->xAxis->setRange(min, max)<\/td>\naxisX->setRange(min, max)<\/td>\n<\/tr>\n
    plot->replot()<\/td>\nchart->update()（\u901a\u5e38\u81ea\u52a8\u91cd\u7ed8）<\/td>\n<\/tr>\n
    plot->savePdf(path)<\/td>\nchart->savePdf(path)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u8f74\u7c7b\u578b\u9009\u62e9<\/h4>\n\n\u573a\u666fQCustomPlot \u7528\u6cd5Qt Charts \u63a8\u8350<\/tr>\n\n\n\n\n\n
    \u5b9e\u65f6\u6a21\u5f0f X \u8f74<\/td>\nQCPAxisTickerDateTime<\/td>\nQDateTimeAxis<\/td>\n<\/tr>\n
    \u5386\u53f2\u6a21\u5f0f X \u8f74<\/td>\n\u7edd\u5bf9\u65f6\u95f4\u6233<\/td>\nQDateTimeAxis<\/td>\n<\/tr>\n
    \u5de6 Y \u8f74<\/td>\nQValueAxis<\/td>\nQValueAxis<\/td>\n<\/tr>\n
    \u53f3 Y \u8f74<\/td>\nQValueAxis (yAxis2)<\/td>\nQValueAxis（\u7b2c\u4e8c\u4e2a\u5b9e\u4f8b）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    \u2462 \u5b9e\u65bd\u6b65\u9aa4（\u7cbe\u7b80\u7248）<\/h3>\n

    Step 1：\u4fee\u6539 CMakeLists.txt<\/h4>\n

    \u9876\u5c42 CMakeLists.txt \u6dfb\u52a0 Charts \u7ec4\u4ef6：<\/p>\n

    find_package(Qt6 REQUIRED
    \n COMPONENTS Core Widgets Sql Svg Network PrintSupport Concurrent Pdf Charts
    \n)<\/p>\n

    src\/app\/CMakeLists.txt \u5220\u9664 QCustomPlot \u7f16\u8bd1\u6bb5，\u6dfb\u52a0 Qt6::Charts：<\/p>\n

    # \u5220\u9664 QCustomPlot \u6e90\u7801\u7f16\u8bd1
    \n# set(QCUSTOMPLOT_SRCS …)
    \n# if(MINGW) … endif()<\/p>\n

    qt_add_executable(${PROJECT_NAME}
    \n ${PLCMonitor_SRCS}
    \n ${SOURCE_FILES}
    \n ${UI_FILES}
    \n)<\/p>\n

    target_link_libraries(${PROJECT_NAME} PRIVATE
    \n Qt6::Widgets Qt6::Sql Qt6::Core Qt6::Network
    \n Qt6::PrintSupport Qt6::Pdf
    \n Qt6::Charts # \u65b0\u589e
    \n)<\/p>\n

    Step 2：\u4fee\u6539 chartpanel.h<\/h4>\n

    \/\/ \u5220\u9664<\/span>
    \n#<\/span>include<\/span> "qcustomplot.h"<\/span><\/span><\/p>\n

    \/\/ \u65b0\u589e<\/span>
    \n#<\/span>include<\/span> <QChartView><\/span><\/span>
    \n#<\/span>include<\/span> <QChart><\/span><\/span>
    \n#<\/span>include<\/span> <QLineSeries><\/span><\/span>
    \n#<\/span>include<\/span> <QValueAxis><\/span><\/span>
    \n#<\/span>include<\/span> <QDateTimeAxis><\/span><\/span><\/p>\n

    \u6210\u5458\u53d8\u91cf\u66ff\u6362：<\/p>\n

    \/\/ \u5220\u9664<\/span>
    \nQCustomPlot *<\/span>m_plot =<\/span> nullptr<\/span>;<\/span>
    \nQCPAxis *<\/span>m_axisRight =<\/span> nullptr<\/span>;<\/span>
    \nQMap<<\/span>QString,<\/span> QCPGraph*<\/span>><\/span> m_graphs;<\/span><\/p>\n

    \/\/ \u65b0\u589e<\/span>
    \nQChartView *<\/span>m_plotView =<\/span> nullptr<\/span>;<\/span>
    \nQChart *<\/span>m_chart =<\/span> nullptr<\/span>;<\/span>
    \nQDateTimeAxis *<\/span>m_axisX =<\/span> nullptr<\/span>;<\/span>
    \nQValueAxis *<\/span>m_axisLeft =<\/span> nullptr<\/span>;<\/span>
    \nQValueAxis *<\/span>m_axisRight =<\/span> nullptr<\/span>;<\/span>
    \nQMap<<\/span>QString,<\/span> QLineSeries*<\/span>><\/span> m_series;<\/span><\/p>\n

    Step 3：\u5220\u9664 QCustomPlot \u6e90\u7801<\/h4>\n

    rm<\/span> src\/common\/qcustomplot.h
    \nrm<\/span> src\/common\/qcustomplot.cpp<\/p>\n

    Step 4：\u66f4\u65b0\u8bb8\u53ef\u8bc1\u6587\u4ef6<\/h4>\n

    – | QCustomPlot | 2.1.0 | GPLv3 | \u8d8b\u52bf\u56fe\u8868\u7ed8\u5236 | qcustomplot.com |
    \n+ | Qt Charts | 6.11.1 | LGPLv3 | \u8d8b\u52bf\u56fe\u8868\u7ed8\u5236（Qt \u539f\u751f） | qt.io |<\/p>\n

    \n

    \u2463 \u6838\u5fc3\u4ee3\u7801 Diff<\/h3>\n

    Diff 1：\u622a\u56fe\u5b9e\u73b0<\/h4>\n

    \u65e7\u7248 QCustomPlot \u6709\u539f\u751f savePng \u63a5\u53e3，\u652f\u6301 KeepAspectRatio \u7b49\u53c2\u6570：<\/p>\n

    \/\/ \u65e7：QCustomPlot<\/span>
    \ncustomPlot<\/span>(<\/span>)<\/span>-><\/span>savePng<\/span>(<\/span>path,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 2.0<\/span>)<\/span>;<\/span>
    \ncustomPlot<\/span>(<\/span>)<\/span>-><\/span>savePdf<\/span>(<\/span>path)<\/span>;<\/span><\/p>\n

    \u65b0\u7248 Qt Charts \u7684 QChart \u5b8c\u5168\u4e0d\u63d0\u4f9b\u200b savePng() \u65b9\u6cd5，\u6b63\u786e\u505a\u6cd5\u662f\u9700\u8981\u901a\u8fc7 QChartView::grab() \u622a\u53d6\u50cf\u7d20\u56fe\u95f4\u63a5\u5b9e\u73b0：<\/p>\n

    \/\/ \u65b0：Qt Charts（\u9879\u76ee\u5b9e\u9645\u5b9e\u73b0）<\/span>
    \nconst<\/span> QPixmap pix =<\/span> m_plotView-><\/span>grab<\/span>(<\/span>)<\/span>;<\/span>
    \npix.<\/span>save<\/span>(<\/span>path,<\/span> "PNG"<\/span>)<\/span>;<\/span><\/p>\n

    PDF \u5bfc\u51fa\u4ecd\u7136\u53ef\u4ee5\u7528 chart->savePdf(path)\u3002<\/p>\n

    Diff 2：X \u8f74\u65f6\u95f4\u6233\u2014\u2014\u8fc1\u79fb\u7b2c\u4e00\u5927\u5751<\/h4>\n

    QDateTimeAxis \u8981\u6c42 X \u503c\u5fc5\u987b\u662f\u6beb\u79d2\u7ea7 epoch，\u4f20\u79d2\u7ea7\u4f1a\u663e\u793a\u6210 1970-01-01 \u6216\u7a7a\u767d\u3002<\/p>\n

    \/\/ \u2717 \u9519\u8bef：\u9664\u4ee5 1000 \u5f97\u5230\u79d2\u7ea7，QDateTimeAxis \u65e0\u6cd5\u6b63\u786e\u89e3\u6790<\/span>
    \nseries-><\/span>append<\/span>(<\/span>QPointF<\/span>(<\/span>QDateTime<\/span>::<\/span>fromSecsSinceEpoch<\/span>(<\/span>t)<\/span>.<\/span>toMSecsSinceEpoch<\/span>(<\/span>)<\/span> \/<\/span> 1000.0<\/span>,<\/span> value)<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u2713 \u6b63\u786e：\u76f4\u63a5\u4f7f\u7528\u6beb\u79d2\u7ea7 epoch<\/span>
    \nseries-><\/span>append<\/span>(<\/span>QPointF<\/span>(<\/span>QDateTime<\/span>::<\/span>fromSecsSinceEpoch<\/span>(<\/span>t)<\/span>.<\/span>toMSecsSinceEpoch<\/span>(<\/span>)<\/span>,<\/span> value)<\/span>)<\/span>;<\/span><\/p>\n

    QDateTime::fromSecsSinceEpoch(t) \u5df2\u5c06\u79d2\u8f6c\u4e3a QDateTime，\u518d\u8c03\u7528 .toMSecsSinceEpoch() \u5f97\u5230\u6beb\u79d2\u7ea7 epoch，\u4e0d\u9700\u8981\u518d\u9664\u4ee5 1000\u3002\u8fd9\u662f\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u7684\u7b2c\u4e00\u5927\u5751\u3002<\/p>\n

    Diff 3：\u53cc Y \u8f74\u7ed1\u5b9a<\/h4>\n

    \/\/ \u53f3\u8f74\u672a\u7ed1\u5b9a\u65f6\u6807\u9898\u4e0d\u7ed8\u5236<\/span>
    \nm_axisRight-><\/span>setVisible<\/span>(<\/span>false<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u5207\u6362 series \u7ed1\u5b9a\u7684\u8f74\u65f6，\u52a1\u5fc5\u5148 detach \u518d attach<\/span>
    \nseries-><\/span>detachAxis<\/span>(<\/span>m_axisRight)<\/span>;<\/span>
    \nseries-><\/span>attachAxis<\/span>(<\/span>m_axisLeft)<\/span>;<\/span><\/p>\n

    Diff 4：setupUI() \u56fe\u8868\u521d\u59cb\u5316<\/h4>\n

    \/\/ QCustomPlot \u65e7\u4ee3\u7801<\/span>
    \nm_plot =<\/span> new<\/span> QCustomPlot<\/span>(<\/span>)<\/span>;<\/span>
    \nm_plot-><\/span>setInteractions<\/span>(<\/span>QCP::<\/span>iRangeDrag |<\/span> QCP::<\/span>iRangeZoom)<\/span>;<\/span>
    \nm_plot-><\/span>axisRect<\/span>(<\/span>)<\/span>-><\/span>setupFullAxesBox<\/span>(<\/span>true<\/span>)<\/span>;<\/span>
    \nm_plot-><\/span>xAxis-><\/span>grid<\/span>(<\/span>)<\/span>-><\/span>setVisible<\/span>(<\/span>true<\/span>)<\/span>;<\/span>
    \nm_plot-><\/span>yAxis-><\/span>grid<\/span>(<\/span>)<\/span>-><\/span>setVisible<\/span>(<\/span>true<\/span>)<\/span>;<\/span>
    \nm_plot-><\/span>legend-><\/span>setVisible<\/span>(<\/span>false<\/span>)<\/span>;<\/span>
    \nm_axisRight =<\/span> m_plot-><\/span>yAxis2;<\/span><\/p>\n

    \/\/ Qt Charts \u65b0\u4ee3\u7801<\/span>
    \nm_chart =<\/span> new<\/span> QChart<\/span>(<\/span>)<\/span>;<\/span>
    \nm_chart-><\/span>setTitle<\/span>(<\/span>""<\/span>)<\/span>;<\/span>
    \nm_chart-><\/span>legend<\/span>(<\/span>)<\/span>-><\/span>setVisible<\/span>(<\/span>false<\/span>)<\/span>;<\/span>
    \nm_chart-><\/span>setTheme<\/span>(<\/span>QChart::<\/span>ChartThemeLight)<\/span>;<\/span><\/p>\n

    m_axisX =<\/span> new<\/span> QDateTimeAxis<\/span>(<\/span>)<\/span>;<\/span>
    \nm_axisX-><\/span>setFormat<\/span>(<\/span>"HH:mm:ss"<\/span>)<\/span>;<\/span>
    \nm_axisX-><\/span>setGridLineVisible<\/span>(<\/span>true<\/span>)<\/span>;<\/span>
    \nm_chart-><\/span>addAxis<\/span>(<\/span>m_axisX,<\/span> Qt::<\/span>AlignBottom)<\/span>;<\/span><\/p>\n

    m_axisLeft =<\/span> new<\/span> QValueAxis<\/span>(<\/span>)<\/span>;<\/span>
    \nm_axisLeft-><\/span>setRange<\/span>(<\/span>–<\/span>1<\/span>,<\/span> 1<\/span>)<\/span>;<\/span>
    \nm_axisLeft-><\/span>setGridLineVisible<\/span>(<\/span>true<\/span>)<\/span>;<\/span>
    \nm_chart-><\/span>addAxis<\/span>(<\/span>m_axisLeft,<\/span> Qt::<\/span>AlignLeft)<\/span>;<\/span><\/p>\n

    m_axisRight =<\/span> new<\/span> QValueAxis<\/span>(<\/span>)<\/span>;<\/span>
    \nm_axisRight-><\/span>setRange<\/span>(<\/span>–<\/span>1<\/span>,<\/span> 1<\/span>)<\/span>;<\/span>
    \nm_axisRight-><\/span>setGridLineVisible<\/span>(<\/span>false<\/span>)<\/span>;<\/span>
    \nm_chart-><\/span>addAxis<\/span>(<\/span>m_axisRight,<\/span> Qt::<\/span>AlignRight)<\/span>;<\/span><\/p>\n

    m_plotView =<\/span> new<\/span> QChartView<\/span>(<\/span>m_chart)<\/span>;<\/span>
    \nm_plotView-><\/span>setRenderHint<\/span>(<\/span>QPainter::<\/span>Antialiasing)<\/span>;<\/span>
    \nm_plotView-><\/span>setInteractive<\/span>(<\/span>true<\/span>)<\/span>;<\/span><\/p>\n

    \n

    \u2464 \u98ce\u9669\u70b9\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h3>\n

    5.1 \u53cc Y \u8f74\u6807\u7b7e<\/h4>\n

    Qt Charts \u7684\u53f3\u8f74\u6807\u7b7e\u901a\u8fc7 setTitle() \u8bbe\u7f6e，\u4e0e QCustomPlot \u7684 setLabel() \u7b49\u6548\u3002\u53f3\u8f74\u7ed1\u5b9a series \u540e\u6807\u9898\u624d\u4f1a\u663e\u793a\u3002\u5207\u6362\u5de6\u53f3\u8f74\u7ed1\u5b9a\u65f6，\u786e\u4fdd\u5148 detachAxis \u518d attachAxis\u3002<\/p>\n

    5.2 \u5386\u53f2\u6a21\u5f0f vs \u5b9e\u65f6\u6a21\u5f0f<\/h4>\n

    \u5386\u53f2\u6a21\u5f0f\u4f7f\u7528\u7edd\u5bf9\u65f6\u95f4\u6233（\u79d2\u7ea7），\u901a\u8fc7 QDateTimeAxis::setRange() \u4f20\u5165\u683c\u5f0f\u5316\u540e\u7684\u8fb9\u754c\u3002\u5b9e\u65f6\u6a21\u5f0f\u4f7f\u7528\u6eda\u52a8\u7a97\u53e3，X \u8f74\u8303\u56f4\u968f\u6570\u636e\u63a8\u8fdb\u3002<\/p>\n

    5.3 \u6027\u80fd：replot() \u2192 update()<\/h4>\n

    Qt Charts \u4f7f\u7528\u573a\u666f\u56fe（QGraphicsScene）\u81ea\u52a8\u91cd\u7ed8，\u901a\u5e38\u4e0d\u9700\u8981\u624b\u52a8\u8c03\u7528 update()\u3002\u4f46\u5728\u6570\u636e\u66f4\u65b0\u540e\u7acb\u5373\u8c03\u7528 m_chart->update() \u53ef\u786e\u4fdd\u5373\u65f6\u5237\u65b0\u3002<\/p>\n

    5.4 \u56fe\u4f8b\u4f4d\u7f6e<\/h4>\n

    QCustomPlot \u56fe\u4f8b\u9ed8\u8ba4\u5728\u5e95\u90e8，Qt Charts \u9ed8\u8ba4\u5728\u53f3\u4fa7\u3002\u8c03\u6574\u4f4d\u7f6e：<\/p>\n

    chart-><\/span>legend<\/span>(<\/span>)<\/span>-><\/span>setAnchorPosition<\/span>(<\/span>QChart::<\/span>LegendAnchorPosition::<\/span>LegendBottom)<\/span>;<\/span><\/p>\n

    5.5 \u6761\u4ef6\u7f16\u8bd1\u4fdd\u62a4<\/h4>\n

    PLCMonitor \u4f7f\u7528 #ifdef PLC_HAS_CHARTS \u5b8f\u4fdd\u62a4\u56fe\u8868\u9762\u677f\u4ee3\u7801，\u786e\u4fdd\u5728\u6ca1\u6709 Qt Charts \u7684\u6784\u5efa\u73af\u5883\u4e2d\u4e5f\u80fd\u7f16\u8bd1\u901a\u8fc7：<\/p>\n

    #<\/span>ifdef<\/span> PLC_HAS_CHARTS<\/span><\/span>
    \n#<\/span>include<\/span> <QChartView><\/span><\/span>
    \n#<\/span>include<\/span> <QChart><\/span><\/span>
    \n\/\/ …<\/span>
    \n#<\/span>endif<\/span><\/span><\/p>\n

    \n

    \u2465 \u7ed3\u8bed<\/h3>\n

    GPL \u5408\u89c4\u662f\u5de5\u4e1a\u8f6f\u4ef6\u5546\u4e1a\u5316\u7684\u5fc5\u7ecf\u4e4b\u8def\u3002QCustomPlot \u867d\u7136\u4f18\u79c0，\u4f46 GPLv3 \u8bb8\u53ef\u8ba9\u5b83\u4e0d\u9002\u5408\u95ed\u6e90\u5546\u4e1a\u4ea7\u54c1\u3002<\/p>\n

    Qt Charts \u4f5c\u4e3a\u66ff\u4ee3\u65b9\u6848，\u529f\u80fd\u867d\u7136\u7565\u900a\u4e8e QCustomPlot，\u4f46\u5b8c\u5168\u6ee1\u8db3\u5de5\u4e1a\u76d1\u63a7\u8f6f\u4ef6\u7684\u9700\u6c42，\u4e14\u8bb8\u53ef\u8bc1\u53cb\u597d\u3002<\/p>\n

    \u8fc1\u79fb\u8fc7\u7a0b\u4e0d\u7b97\u590d\u6742，\u5173\u952e\u662f\u5145\u5206\u8bc4\u4f30\u3001\u5206\u6b65\u5b9e\u65bd\u3001\u5168\u9762\u6d4b\u8bd5\u3002\u5e0c\u671b\u672c\u6587\u7684\u7ecf\u9a8c\u80fd\u7ed9\u4f60\u4e00\u4e9b\u53c2\u8003\u3002<\/p>\n

    \n

    \u5982\u679c\u60a8\u4e5f\u5728\u5de5\u4e1a\u76d1\u63a7\u9886\u57df\u6709\u7c7b\u4f3c\u9700\u6c42，\u6b22\u8fce\u4ea4\u6d41\u63a2\u8ba8\u6280\u672f\u65b9\u6848\u3002<\/p>\n

    \u5982\u679c\u89c9\u5f97\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4f60\u6709\u5e2e\u52a9，\u6b22\u8fce\u70b9\u8d5e\u6536\u85cf，\u4e0b\u671f\u7ee7\u7eed\u5206\u4eab PLCMonitor \u7684\u5176\u4ed6\u8bbe\u8ba1\u5b9e\u8df5\u3002<\/p>\n

    \u9879\u76ee\u5730\u5740：https:\/\/github.com\/freddiezhang1990\/plcmonitor<\/p>\n

    \u6b22\u8fce\u4e0b\u8f7d V2.0 \u5b89\u88c5\u5305\u8bd5\u7528，\u5e76\u63d0\u51fa\u5b9d\u8d35\u610f\u89c1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    Qt \u5de5\u4e1a\u8f6f\u4ef6 GPLv3 \u6c61\u67d3\u5371\u673a：QCustomPlot \u2192 Qt Charts \u8fc1\u79fb\u5b9e\u6218\u5de5\u4e1a\u8f6f\u4ef6\u8981\u5546\u4e1a\u5316，\u8bb8\u53ef\u8bc1\u5408\u89c4\u662f\u5fc5\u7ecf\u4e4b\u8def\u3002QCustomPlot \u7684 GPLv3 \u8bb8\u53ef\u7ed9\u95ed\u6e90\u4ea7\u54c1\u57cb\u4e0b\u4e86\u9690\u60a3\u3002\u672c\u6587\u8be6\u8ff0 PLCMonitor \u5982\u4f55\u4ece QCustomPlot \u8fc1\u79fb\u5230 Qt Charts（LGPLv3），\u6d88\u9664 GPL \u6c61\u67d3，\u4ee5\u53ca\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u7684 API \u6620\u5c04\u548c\u5751\u70b9\u3002
    \n\u514d\u8d23\u58f0\u660e：\u672c\u6587<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,3750],"topic":[],"class_list":["post-102190","post","type-post","status-publish","format-standard","hentry","category-server","tag-c","tag-mfc"],"yoast_head":"\nGPL\u6c61\u67d3\u5371\u673a_QCustomPlot\u8fc1\u79fb\u5b9e\u6218 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/102190.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GPL\u6c61\u67d3\u5371\u673a_QCustomPlot\u8fc1\u79fb\u5b9e\u6218 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Qt \u5de5\u4e1a\u8f6f\u4ef6 GPLv3 \u6c61\u67d3\u5371\u673a：QCustomPlot \u2192 Qt Charts \u8fc1\u79fb\u5b9e\u6218\u5de5\u4e1a\u8f6f\u4ef6\u8981\u5546\u4e1a\u5316，\u8bb8\u53ef\u8bc1\u5408\u89c4\u662f\u5fc5\u7ecf\u4e4b\u8def\u3002QCustomPlot \u7684 GPLv3 \u8bb8\u53ef\u7ed9\u95ed\u6e90\u4ea7\u54c1\u57cb\u4e0b\u4e86\u9690\u60a3\u3002\u672c\u6587\u8be6\u8ff0 PLCMonitor \u5982\u4f55\u4ece QCustomPlot \u8fc1\u79fb\u5230 Qt Charts（LGPLv3），\u6d88\u9664 GPL \u6c61\u67d3，\u4ee5\u53ca\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u7684 API \u6620\u5c04\u548c\u5751\u70b9\u3002 \u514d\u8d23\u58f0\u660e：\u672c\u6587\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/102190.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-08T01:57:08+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/102190.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/102190.html\",\"name\":\"GPL\u6c61\u67d3\u5371\u673a_QCustomPlot\u8fc1\u79fb\u5b9e\u6218 - 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