如何在Q3DSurface上设置轴标签？

Question

我尝试通过以下操作在Q3DSurface上设置轴标签：

#include "mainwindow.h"

#include <Q3DSurface>

using namespace QtDataVisualization;

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
{
    Q3DSurface *graph = new Q3DSurface;
    QWidget *widget = QWidget::createWindowContainer(graph);
    setCentralWidget(widget);
    graph->axisX()->setLabels(QStringList{"a", "b", "c"});
}

MainWindow::~MainWindow() {}

但是标签没有显示，如何显示它们的提示？

Answer 1

为QValue3DAxis设置此属性不会执行任何操作，因为它会自动生成标签。

https://doc.qt.io/qt-5/qabstract3daxis.html#labels-prop

Answer 2

我认为您想设置轴标题，而不是标签。默认隐藏的标题

#include "mainwindow.h"

#include <Q3DSurface>

using namespace QtDataVisualization;

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
{
    Q3DSurface *graph = new Q3DSurface;
    QWidget *widget = QWidget::createWindowContainer(graph);
    setCentralWidget(widget);

    m_graph->axisX()->setTitle(QStringLiteral("a"));
    m_graph->axisY()->setTitle(QStringLiteral("b"));
    m_graph->axisZ()->setTitle(QStringLiteral("c"));

    m_graph->axisX()->setTitleVisible(true);
    m_graph->axisY()->setTitleVisible(true);
    m_graph->axisZ()->setTitleVisible(true);
}

MainWindow::~MainWindow() {}