c++ - Q3DBars 仅在一个角上带有垂直标签，可能吗？

Question

这是剧情

这是代码

.pro

QT      += core gui widgets datavisualization
TEMPLATE = app
SOURCES += main.cpp mainwindow.cpp
HEADERS += mainwindow.h

main.cpp

#include "mainwindow.cpp"
#include <QApplication>

int main(int argc, char *argv[]) {
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}

主窗口.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

class MainWindow : public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();
};

#endif // MAINWINDOW_H

主窗口.cpp

#include "mainwindow.h"
#include <QMainWindow>

#include <QtDataVisualization/Q3DBars>
using namespace QtDataVisualization;

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
    resize(800,600);
    Q3DBars *graph = new Q3DBars;
    setCentralWidget(QWidget::createWindowContainer(graph));
    graph->scene()->activeCamera()->setCameraPosition(30,30);
    graph->activeTheme()->setGridLineColor(Qt::red);
}

MainWindow::~MainWindow(){}

我可以在一个角而不是两个角上放置垂直轴(值轴)的标签吗？

Answer 1

要添加自定义标签:

auto graph = new Q3DBars;
auto container = QWidget::createWindowContainer(graph);
setCentralWidget(container);

auto label = new QCustom3DLabel;
graph->addCustomItem(label);
label->setText("text");
label->setPosition(QVector3D(0,0.5,0));
label->setTextColor(Qt::red);
label->setScaling(QVector3D(1,1,1));