Qt編寫地圖綜合應用之繪制雨量分佈

一、前言

雨量分佈圖是在區域地圖基礎上,針對區域中的每個最小單位區域比如縣城點位不同顏色顯示,最開始做這個封裝的時候,並沒有提供單獨設置每個點顏色的接口,後面經過幾個客戶的強烈建議,咬咬牙把每個點都可以單獨設置不同顏色的接口加進去,這樣就更加符合實際的需求,比如這個點到瞭報警階段則紅色顯示,正常階段則綠色顯示,如果沒有設置過顏色,就取值默認的顏色,全部不設置顏色則全部取默認的顏色。每個點的顏色值和對應點的經緯度坐標一樣,隊列集合設置下去。

二、功能特點

同時支持閃爍點圖、遷徙圖、區域地圖、世界地圖、儀表盤等。

可以設置標題、提示信息、背景顏色、文字顏色、線條顏色、區域顏色等各種顏色。

可設置城市的名稱、值、經緯度 集合。

可設置地圖的放大倍數、是否允許鼠標滾輪縮放。

內置世界地圖、全國地圖、省份地圖、地區地圖,可以精確到縣,所有地圖全部離線使用。

內置瞭各省市json數據文件轉js文件功能,如有數據更新自行轉換即可,支持單個文件轉換和一鍵轉換所有文件。

內置瞭從json文件或者js文件獲取該區域的所有名稱和經緯度信息集合的功能,可以通過該方法獲取到信息用來顯示。

依賴瀏覽器組件顯示地圖,提供的demo支持webkit/webengine/miniblink/ie 多種方式加載網頁。

采用miniblink瀏覽器內核打通瞭Qt5.6及後續版本+mingw編譯器缺少瀏覽器模塊的遺憾,使得整個項目支持所有Qt版本,親測4.7到6.2等任意版本。

閃爍點遷徙圖等設置的點支持單獨設置顏色。

提供接口直接獲取點擊的點相關信息,方便程序聯動處理。

拓展性極強,可以依葫蘆畫瓢自行增加各種精美的echarts組件,做出牛逼的效果。

內置的儀表盤組件提供交互功能,demo演示中包含瞭對應的代碼。

函數接口友好和統一,使用簡單方便,就一個類。

支持任意Qt版本、任意系統、任意編譯器。

三、體驗地址

體驗地址:https://pan.baidu.com/s/1ZxG-oyUKe286LPMPxOrO2A 提取碼:o05q 文件名:bin_map.zip

國內站點:https://gitee.com/feiyangqingyun

國際站點:https://github.com/feiyangqingyun

四、效果圖

五、相關代碼 

void frmEcharts::initMap()
{
    //主動設置下echart控件的高度
    echart->setHeight(ui->widget->height());

    QStringList cityName, cityValue, cityPoint, cityColor, cityTip;
    cityName << "上海" << "北京" << "成都" << "武漢" << "廈門" << "廣州";
    cityPoint << "121.48,31.22" << "116.46,39.92" << "104.06,30.67" << "114.31,30.52" << "118.1,24.46" << "113.23,23.16";

    echart->setCityName(cityName);
    echart->setCityPoint(cityPoint);
    echart->setZoom(1.0);
    //全國地圖是 china 世界地圖可以換成 world
    echart->setMapJsName("china");
    echart->setMapAreaName("china");

    if (currentText == "閃爍點圖") {
        cityValue << "250" << "220" << "150" << "180" << "140" << "170";
        //設置不同的顏色
        cityColor << "#00FF00" << "#FDA356" << "#EB766E" << "" << "#47CAF6" << "#F9BE4F";
        //設置不同的懸停提示
        cityTip << "上海 = 80%" << "北京 = 89%" << "成都 = 86%" << "武漢 = 78%" << "廈門 = 65%" << "廣州 = 70%";

        echart->setCityValue(cityValue);
        echart->setCityColor(cityColor);
        echart->setCityTip(cityTip);
    } else if (currentText == "遷徙圖") {
        cityValue << "1" << "0" << "0" << "0" << "0" << "0";
        //設置不同的顏色
        cityColor << "#00FF00" << "#FDA356" << "#EB766E" << "" << "#47CAF6" << "#F9BE4F";
        //設置不同的懸停提示
        cityTip << "上海 = 80%" << "北京 = 89%" << "成都 = 86%" << "武漢 = 78%" << "廈門 = 65%" << "廣州 = 70%";

        echart->setCityValue(cityValue);
        echart->setCityColor(cityColor);
        echart->setCityTip(cityTip);
    } else if (currentText == "儀表盤") {

    } else if (currentText == "世界地圖") {
        cityName.clear();
        cityValue.clear();
        cityPoint.clear();
        cityColor.clear();
        cityTip.clear();

#if 0
        cityName << "美國1" << "美國2" << "美國3" << "英國" << "德國" << "荷蘭" << "澳大利亞" << "溫州";
        cityValue << "0" << "0" << "0" << "0" << "0" << "0" << "0" << "1";
        cityPoint << "-115.652087,44.677279" << "-97.990682,32.358956" << "-119.037189,35.667425"
                  << "-1.742162,52.468150" << "10.032107,50.633281" << "5.763934,53.181365"
                  << "134.250655,-23.981496" << "120.65,28.01";
#else
        cityName << "北美洲" << "南美洲" << "非洲" << "歐洲" << "大洋洲" << "印度" << "中國";
        cityValue << "0" << "0" << "0" << "0" << "0" << "0" << "1";
        cityPoint << "-101.670961,41.103997" << "-58.842054,-11.895087" << "22.106051,14.099049"
                  << "15.777381,49.971800" << "132.637011,-25.596128" << "78.475369,22.934290"
                  << "113.651000,39.526776";
#endif

        for (int i = 0; i < cityName.count(); i++) {
            cityColor << "";
            cityTip << QString("銷售額占比: %1 = %2%").arg(cityName.at(i)).arg(rand() % 100);
        }

        echart->setCityName(cityName);
        echart->setCityValue(cityValue);
        echart->setCityPoint(cityPoint);
        echart->setCityColor(cityColor);
        echart->setCityTip(cityTip);
        echart->setMapJsName("world");
        echart->setMapAreaName("world");
    } else if (currentText == "區域地圖") {
        cityName.clear();
        cityValue.clear();
        cityPoint.clear();
        cityColor.clear();
        cityTip.clear();

        QString dirName = ui->cboxDir->currentText();
        QString areaName = ui->cboxJson->currentText();
        QString jsName = dirName + "/" + areaName;

#if 1
        //根據文件獲取名稱+經緯度集合
        //QString jsonFile = QString("%1/areajson/%2/%3.json").arg(ConfigPath).arg(dirName).arg(areaName);
        //QStringList infos = EchartJs::getInfoFromJson(jsonFile);
        QString jsFile = QString("%1/areajs/%2/%3.js").arg(ConfigPath).arg(dirName).arg(areaName);
        QStringList infos = EchartJs::getInfoFromJs(jsFile);
        foreach (QString info, infos) {
            QStringList list = info.split("|");
            cityName << list.at(0);
            cityValue << QString("%1").arg((rand() % 100) + 100);
            cityPoint << list.at(1);
        }
#else
        //固定寫死
        if (areaName == "上海") {
            cityName << "浦東新區" << "閔行區" << "金山區" << "奉賢區" << "嘉定區";
            cityValue << "250" << "100" << "200" << "150" << "220";
            cityPoint << "121.567706,31.245944" << "121.375972,31.111658" << "121.330736,30.724697" << "121.458472,30.912345" << "121.250333,31.383524";
        }
#endif

        for (int i = 0; i < cityName.count(); i++) {
            cityColor << "";
            cityTip << QString("%1 = %2").arg(cityName.at(i)).arg(cityValue.at(i));
        }

        echart->setCityName(cityName);
        echart->setCityValue(cityValue);
        echart->setCityPoint(cityPoint);
        echart->setCityColor(cityColor);
        echart->setCityTip(cityTip);
        echart->setMapJsName(jsName);
        echart->setMapAreaName(areaName);
    } else if (currentText == "雨量分佈") {
        cityName.clear();
        cityValue.clear();
        cityPoint.clear();
        cityColor.clear();
        cityTip.clear();

        QString dirName = "江西";
        QString areaName = "吉安市";
        QString jsName = dirName + "/" + areaName;

        QString jsFile = QString("%1/areajs/%2/%3.js").arg(ConfigPath).arg(dirName).arg(areaName);
        QStringList infos = EchartJs::getInfoFromJs(jsFile);
        foreach (QString info, infos) {
            QStringList list = info.split("|");
            cityName << list.at(0);
            cityValue << QString("%1").arg((rand() % 150) + 100);
            cityPoint << list.at(1);
        }

        QStringList colors = QColor::colorNames();
        for (int i = 0; i < cityName.count(); i++) {
            cityColor << colors.at(rand() % colors.count());
            cityTip << QString("%1 = %2 毫米").arg(cityName.at(i)).arg(cityValue.at(i));
        }

        echart->setCityName(cityName);
        echart->setCityValue(cityValue);
        echart->setCityPoint(cityPoint);
        echart->setCityColor(cityColor);
        echart->setCityTip(cityTip);
        echart->setMapJsName(jsName);
        echart->setMapAreaName(areaName);
    }

    this->loadMap();
} 

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