如图1所示，我们需要在QT界面中实现手动读取参数存放的位置，那么我们该如何做呢？
方法：读取ini格式的配置文件，实现路径的写入与读取。
//初始化一个.ini配置文件
//qApp是QT系统自带的,可以直接使用
QString iniFilePath=qApp->applicationDirPath()+"/Config.ini";
//如果不存在Config.ini，便生成一个Config.ini。如果已经存在了，则略过。
if(!QFile::exists(iniFilePath))
{
QSettings configIniWrite(iniFilePath,QSettings::IniFormat);
configIniWrite.beginGroup("calib_data_path");
configIniWrite.setValue("calib_data_path","FA0180090134.xml");
configIniWrite.endGroup();
configIniWrite.beginGroup("robot_pose_file");
configIniWrite.setValue("robot_pose_file_path","robot_pose_file.txt");
configIniWrite.endGroup();
}
void saveConfig(const QString& group,const QString& name, const QVariant& var)
{
QString iniFilePath = qApp->applicationDirPath() + "/Config.ini";
if (QFile::exists(iniFilePath))
{
QSettings configIniWrite(iniFilePath,QSettings::IniFormat);
configIniWrite.beginGroup(group);
configIniWrite.setValue(name,var);
configIniWrite.endGroup();
}
}
Demo1:
//设置相机标定文件路径
void CalibrationForm::btnLoadCamParaPath_clicked()
{
QFileDialog dialog(this,tr("Select calib data file"));
dialog.setAcceptMode(QFileDialog::AcceptOpen);
dialog.setFileMode(QFileDialog::ExistingFile);
static bool firstDialog = true;
if (firstDialog)
{
firstDialog = false;
const QStringList fileLocations =
QStandardPaths::standardLocations(QStandardPaths::DesktopLocation);
dialog.setDirectory(fileLocations.isEmpty() ?
QDir::currentPath():fileLocations.last());
}
dialog.setNameFilter(tr("FA0180090134(*.xml)"));
if (dialog.exec()==QDialog::Accepted)
{
//获得文件夹路径+文件名
_campara_path = dialog.selectedFiles().first();
ui->lineEditCamParaPath->setText(_campara_path); //此处是在lineEdit窗口显示路径名+文件名
saveConfig("calib_data_path","calib_data_path",_campara_path);
}
}
demo2:
//设置手眼标定时的机械臂运动轨迹路径
void CalibrationForm::btnLoadRobotPara_clicked()
{
QFileDialog dialog(this,tr("Select robot pose file"));
dialog.setAcceptMode(QFileDialog::AcceptOpen);
dialog.setFileMode(QFileDialog::ExistingFile);
static bool first_Dialog = true;
if (first_Dialog)
{
first_Dialog = false;
const QStringList fileLocations =
QStandardPaths::standardLocations(QStandardPaths::DesktopLocation);
dialog.setDirectory(fileLocations.isEmpty()?
QDir::currentPath():fileLocations.last());
}
dialog.setNameFilter(tr("robot_pose_file(*.txt)"));
if (dialog.exec()==QDialog::Accepted)
{
_robot_pose_path = dialog.selectedFiles().first();
ui->lineEditRobotPath->setText(_robot_pose_path);
saveConfig("robot_pose_file","robot_pose_file_path",_robot_pose_path);
}
}
由于ini文件不可在星球中上传，此处用txt形式的截图作为附件，见图2.
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