`CoordItem` has quite large blocks of code which are never executed, e.g. <details><summary>Click to expand</summary> ``` ///////////////////////////////////////////////////// // Draw a cube (Quader) near coord system // ///////////////////////////////////////////////////// bool drawCube = false; if(drawCube) { painter->setPen(Qt::green); // Boden p[0] = extCalib->getImagePoint(cv::Point3f(100, 100, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(200, 100, 0)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(200, 100, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(200, 200, 0)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(200, 200, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(100, 200, 0)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(100, 200, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(100, 100, 0)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); // Seiten p[0] = extCalib->getImagePoint(cv::Point3f(100, 100, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(100, 100, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(200, 100, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(200, 100, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(100, 200, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(100, 200, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(200, 200, 0)); p[1] = extCalib->getImagePoint(cv::Point3f(200, 200, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); // Oben p[0] = extCalib->getImagePoint(cv::Point3f(100, 100, 100)); p[1] = extCalib->getImagePoint(cv::Point3f(200, 100, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(200, 100, 100)); p[1] = extCalib->getImagePoint(cv::Point3f(200, 200, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(200, 200, 100)); p[1] = extCalib->getImagePoint(cv::Point3f(100, 200, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); p[0] = extCalib->getImagePoint(cv::Point3f(100, 200, 100)); p[1] = extCalib->getImagePoint(cv::Point3f(100, 100, 100)); painter->drawLine(QPointF(p[0].x, p[0].y), QPointF(p[1].x, p[1].y)); } ``` </details> They are mostly not hard to write again and make the current code hard to read. Therefore I propose deleting them.