Qt校園導航系統

目的、要求：

A.選區XX大學平面圖作爲底圖，選擇圖中的9個點做爲爲導航點

B.上面的9個點要有點的介紹和圖片信息

C.隨便點擊任意兩點，會出現2點之間的最短路徑和語言播報（播報內容有方向、距離。怎麼走到這個點，其中點1到點2和點2到點1播放的內容不同）

D.顯示系統主界面模塊設計在我的系統中，首先實現的整個系統的主界面，並不會直接進入到導航界面。系統主界面要有學生名字、老師名字和學校名字。背景爲本校圖片。主界面上應該有一個進入導航系統界面的按鈕

簡介：

1.實現系統主界面模塊

2.實現導航界面（點擊地圖上的點，在導航頁面的顯示該點信息和圖片。選擇要導航的2個點，通過迪杰特斯拉算法得到最短路徑，然後播放對應的音頻信息）

3.實現地點信息管理模塊（修改地點介紹和地點圖片）

4.導航語音下載檢測模塊（使用迪杰特斯拉算法獲取選擇點的最短路徑信息，編輯成文字，然後與百度語音api進行交互，下載全部的語音信息）

效果：

下載語音gif圖超過大小，這裏就貼圖吧

代碼：

/////導航按鈕槽函數
void MainForm::on_navigationBtn_clicked()
{
    if(ui->startSiteComboBox->currentText() == ui->endSiteComboBox->currentText())
    {
        QMessageBox::information(NULL,QStringLiteral("警告"),QStringLiteral("請不要選擇2個相同的點"));
        return;
    }

    //獲取當前定位的點，然後直接播放語音
    QString startStr = ui->startSiteComboBox->currentText();
    QString endStr = ui->endSiteComboBox->currentText();

    QString videoName = startStr + "到" + endStr;

    ui->infoShowTextEdit_2->clear();
    //求輸入2點的最短路徑

    m_approachSiteList.clear();
    m_approachSiteLengthList.clear();

    int startInt = ui->startSiteComboBox->currentIndex() + 1;
    int endInt = ui->endSiteComboBox->currentIndex() + 1;
    qDebug() << "startInt:" << startInt << "endInt:" << endInt;

    ShortestPath_DIJ(amg, startInt - 1);
    int temp = endInt - 1;
    int temp1, temp2;
    int flag[MAX_], m = 0;
    qDebug() << "從" << QString::fromStdString(amg.vexs[startInt - 1]) << "到" << QString::fromStdString(amg.vexs[endInt - 1]) << "最短路徑爲：" ;
    while (temp!= -1)
    {
        flag[m++] = temp;
        temp1 = temp ;
        temp2 = Path[temp1];
        temp = temp2;
    }
    for (int i = m - 1; i >= 0; i--)
    {
        //cout << amg.vexs[flag[i]] << "->";
        QString infos = QString::fromStdString(amg.vexs[flag[i]]);
        //QString pointPath2 = "途徑" + infos;
        //qDebug() << "->" << pointPath2;
        //ui->infoShowTextEdit->append(pointPath);
        m_approachSiteList.append(infos);
        if(i + 1 < m)
        {
            QString pathLenth1 = QString::number(amg.arcs[flag[i]][flag[i + 1]]);
            //ui->infoShowTextEdit->append(pathLenth1);
            // qDebug() << "分路程" << pathLenth1;
            m_approachSiteLengthList.append(pathLenth1);
        }
    }
    //cout << endl;
    //cout << "最短路徑值爲：" << D[end - 1] <<"米"<< endl;
    //ui->infoShowTextEdit->append("路徑長度是：");
    QString pathLenth = QString::number(D[endInt - 1]);
    //ui->infoShowTextEdit->append(pathLenth);
    qDebug() << "總路程" << pathLenth;

    //        for(int www = 0;www < m_approachSiteLengthList.count();www++)
    //        {
    //            qDebug() << "m_approachSiteLengthList.count()::" << m_approachSiteLengthList.count() << m_approachSiteLengthList[www];
    //        }

    qDebug() << "m_approachSiteList.count()::" << m_approachSiteList.count() << " m_approachSiteLengthList";
    ////對路徑導航語音字符串進行編寫
    QString str = "您從" + startStr + "開始出發,";
    qDebug() << "str::" << str;
    QString str1;
    int allLength = D[endInt - 1];
    for(int iii = 1;iii < m_approachSiteList.count();iii++)
    {
        //如果m_approachSiteList.count()等於2，也就是隻有2個點
        if(m_approachSiteList.count() == 2)
        {
            str1 += "朝着" + m_approachSiteList[iii] + "的方向前行" + QString::number(allLength) + "米," + "最終您將到達目的地" + m_approachSiteList[iii] + "，總路程" + QString::number(allLength) + "米";;
        }
        else if(iii == 1 && m_approachSiteList.count() != 2)
        {
            str1 += "朝着" + m_approachSiteList[iii] + "的方向前行" + m_approachSiteLengthList[iii - 1] + "米,";
        }
        else if(iii == (m_approachSiteList.count() - 1))
        {
            //如果到最後一條
            str1 += "隨後朝着" + m_approachSiteList[iii] + "的方向前行" + m_approachSiteLengthList[iii - 1] + "米，" + "最終您將到達目的地" + m_approachSiteList[iii] + "，總路程" + QString::number(allLength) + "米";
        }
        else
        {
            str1 += "隨後朝着" + m_approachSiteList[iii] + "的方向前行" + m_approachSiteLengthList[iii - 1] + "米，";
        }

        qDebug() << "str1:" << str1;
    }

    //總字符串拼接
    QString videoStr = str + str1;
    //語音字符串請看下面的debug的輸出
    //qDebug() << "videoStr:" << videoStr;
    //ui->infoShowTextEdit->append(videoStr);
    ui->infoShowTextEdit_2->append(videoStr);


    //對語音進行播放
    QString voiceFilePath = QString("%1/%2.ogg").arg(currentExeFilePath).arg(videoName);
    mediaPlayer->setMedia(QUrl::fromLocalFile(voiceFilePath));
    mediaPlayer->play();
}


//下載語音按鈕槽函數
void MainForm::on_downloadVideoBtn_clicked()
{
    QStringList  strList,strList1;
    strList << "小足球場" << "博識樓" << "圖書館" << "體育館" << "科技大樓" << "宿舍博寧寓一號樓" << "博味廳" << "宿舍博夢寓二號樓" << "二號實驗室";
    strList1 << "小足球場" << "博識樓" << "圖書館" << "體育館" << "科技大樓" << "宿舍博寧寓一號樓" << "博味廳" << "宿舍博夢寓二號樓" << "二號實驗室";
    QStringList fileNameList;
    QString fileName;
    QStringList fileContentList;
    //對文件名進行命名
    for(int i = 0;i < strList.count();i++)
    {
        for(int j = 0;j < strList.count();j++)
        {
            if(strList[i] != strList1[j])
            {
                fileName = strList[i] + "到" + strList1[j];
                fileNameList.append(fileName);

                //求輸入2點的最短路徑

                m_approachSiteList.clear();
                m_approachSiteLengthList.clear();

                int startInt = i + 1;
                int endInt = j + 1;
                qDebug() << "startInt:" << startInt << "endInt:" << endInt;

                ShortestPath_DIJ(amg, startInt - 1);
                int temp = endInt - 1;
                int temp1, temp2;
                int flag[MAX_], m = 0;
                qDebug() << "從" << QString::fromStdString(amg.vexs[startInt - 1]) << "到" << QString::fromStdString(amg.vexs[endInt - 1]) << "最短路徑爲：" ;
                while (temp!= -1)
                {
                    flag[m++] = temp;
                    temp1 = temp ;
                    temp2 = Path[temp1];
                    temp = temp2;
                }
                for (int i = m - 1; i >= 0; i--)
                {
                    //cout << amg.vexs[flag[i]] << "->";
                    QString infos = QString::fromStdString(amg.vexs[flag[i]]);
                    //QString pointPath2 = "途徑" + infos;
                    //qDebug() << "->" << pointPath2;
                    //ui->infoShowTextEdit->append(pointPath);
                    m_approachSiteList.append(infos);
                    if(i + 1 < m)
                    {
                        QString pathLenth1 = QString::number(amg.arcs[flag[i]][flag[i + 1]]);
                        //ui->infoShowTextEdit->append(pathLenth1);
                        // qDebug() << "分路程" << pathLenth1;
                        m_approachSiteLengthList.append(pathLenth1);
                    }
                }
                //cout << endl;
                //cout << "最短路徑值爲：" << D[end - 1] <<"米"<< endl;
                //ui->infoShowTextEdit->append("路徑長度是：");
                QString pathLenth = QString::number(D[endInt - 1]);
                //ui->infoShowTextEdit->append(pathLenth);
                qDebug() << "總路程" << pathLenth;

                for(int www = 0;www < m_approachSiteLengthList.count();www++)
                {
                    qDebug() << "m_approachSiteLengthList.count()::" << m_approachSiteLengthList.count() << m_approachSiteLengthList[www];
                }

                qDebug() << "m_approachSiteList.count()::" << m_approachSiteList.count() << " m_approachSiteLengthList";
                ////對路徑導航語音字符串進行編寫
                QString str = "您從" + strList[i] + "開始出發,";
                qDebug() << "str::" << str;
                QString str1;
                int allLength = D[endInt - 1];
                for(int iii = 1;iii < m_approachSiteList.count();iii++)
                {
                    //                    QString str2 = m_approachSiteLengthList[iii];
                    //                    allLength += str2.toInt();
                    //如果m_approachSiteList.count()等於2，也就是隻有2個點
                    if(m_approachSiteList.count() == 2)
                    {
                        str1 += "朝着" + m_approachSiteList[iii] + "的方向前行" + QString::number(allLength) + "米," + "最終您將到達目的地" + m_approachSiteList[iii] + "，總路程" + QString::number(allLength) + "米";;
                    }
                    else if(iii == 1 && m_approachSiteList.count() != 2)
                    {
                        str1 += "朝着" + m_approachSiteList[iii] + "的方向前行" + m_approachSiteLengthList[iii - 1] + "米,";
                    }
                    else if(iii == (m_approachSiteList.count() - 1))
                    {
                        //如果到最後一條
                        str1 += "隨後朝着" + m_approachSiteList[iii] + "的方向前行" + m_approachSiteLengthList[iii - 1] + "米，" + "最終您將到達目的地" + m_approachSiteList[iii] + "，總路程" + QString::number(allLength) + "米";
                    }
                    else
                    {
                        str1 += "隨後朝着" + m_approachSiteList[iii] + "的方向前行" + m_approachSiteLengthList[iii - 1] + "米，";
                    }

                    qDebug() << "str1:" << str1;
                }

                //總字符串拼接
                QString videoStr = str + str1;
                //語音字符串請看下面的debug的輸出
                qDebug() << "videoStr:" << videoStr;
                //ui->infoShowTextEdit->append(videoStr);
                fileContentList.append(videoStr);
            }
        }
    }

    for(int i = 0;i < fileNameList.count();i++)
    {
        QString str = "第 " + QString::number(i) + "個文件，文件名爲：" + fileNameList[i] + " 內容是：" + fileContentList[i];
        //qDebug() <<   i  <<  "  "  <<fileNameList[i] << " 內容是：" << fileContentList[i];
        ui->infoShowTextEdit->append(str);
    }

    //得到文件名和文件內容後，開始進行語音下載
    //通過獲取要點名的名字信息，然後與存在的音頻文件名對比，得到重複的文件，然後刪除相應的數據信息，不再對已有的音頻文件下載
    //只下載沒有的即可
    m_currentNeedDownloadVideoList = fileContentList;
    m_currentNeedDownloadVideoNameList = fileNameList;
    if(m_currentNeedDownloadVideoList.count() > 0)
    {
        getFileFormUrl(QUrl(QString("http://tts.baidu.com/text2audio?lan=zh&ie=UTF-8&text=" + m_currentNeedDownloadVideoList.at(0))),
                       QString("%1/%2.ogg").arg(currentExeFilePath).arg(m_currentNeedDownloadVideoNameList.at(0)));

    }
    else
    {
        ui->infoShowTextEdit->append(QString("需要下載的音頻文件已經存在，不需要再次下載..."));
        ui->downloadVideoBtn->setEnabled(true);
    }

}
//檢驗按鈕槽函數
void MainForm::on_checkoutBtn_clicked()
{
    QStringList nameQStrList = m_currentNeedDownloadVideoNameList;
    for(int i = 0;i < nameQStrList.count();i++)
    {
        QFile files(QString("%1/%2.ogg").arg(currentExeFilePath).arg(nameQStrList.at(i)));
        if(files.exists())
        {
            //判斷文件大小是否爲0，如果爲0肯定是不能用的
            if(files.size() != 0)
            {
                ui->infoShowTextEdit->append(QString("%1.ogg 存在...").arg(nameQStrList.at(i)));
            }
            else
            {
                ui->infoShowTextEdit->append(QString("%1.ogg 存在，但是下載時出錯，請重新下載...").arg(nameQStrList.at(i)));
            }
        }
        else
        {
            ui->infoShowTextEdit->append(QString("%1.ogg 不存在，請重新下載...").arg(nameQStrList.at(i)));
        }
    }
}

 

exe體驗地址（百度網盤鏈接）：

鏈接：https://pan.baidu.com/s/17cAPCjjdKNizt7qYpQ6STQ 
提取碼：zljt