程序运行截图如下：
这里的主要框架为Q3DScatter
首先是设置范围，免得随机生成坐标时，坐标系不停的变：
使用QScatter3DSeries生成一串的item。方便显示在m_graph中
使用QScatterDataItem进行元素的操作。
逻辑很简单把
旋转
关键代码
1 #include "widget.h"
2 #include "ui_widget.h"
3 #include <QtDataVisualization/QScatter3DSeries>
4 #include <QDebug>
5 #include <QThread>
6 #include <QTime>
7 #include <QTimer>
8 #include <QMessageBox>
9
10
11 Widget::Widget(QWidget *parent) : 12 QWidget(parent), 13 ui(new Ui::Widget) 14 { 15 ui->setupUi(this); 16 this->setWindowTitle("CSDN IT1995"); 17 m_graph = new Q3DScatter(); 18 m_graph->axisX()->setRange(-10, 10); 19 m_graph->axisY()->setRange(-10, 10); 20 m_graph->axisZ()->setRange(-10, 10); 21 QWidget *container = QWidget::createWindowContainer(m_graph); 22
23 qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime())); 24
25 if (!m_graph->hasContext()) { 26
27 QMessageBox msgBox; 28 msgBox.setText("Couldn't initialize the OpenGL context."); 29 msgBox.exec(); 30 return; 31 } 32
33
34
35 //添加数据
36 QScatter3DSeries *item = new QScatter3DSeries(); 37 item->setMesh(QAbstract3DSeries::MeshUserDefined); 38 item->setUserDefinedMesh(":/img/1cube.obj"); 39
40 m_graph->addSeries(item); 41
42
43 //设置到控件上
44 QHBoxLayout *hLayout = new QHBoxLayout(); 45 hLayout->addWidget(container, 1); 46 ui->widget->setLayout(hLayout); 47
48 //生成线，数据：
49 QScatterDataArray *dataArray = new QScatterDataArray; 50 dataArray->resize(5); 51 QScatterDataItem *ptrToDataArray = &dataArray->first(); 52
53 for(int i = 0; i <= dataArray->size(); i++){ 54
55 ptrToDataArray->setPosition(QVector3D(0, i, 0)); 56 ptrToDataArray++; 57 } 58
59 item->dataProxy()->resetArray(dataArray); 60
61 //让其随机移动
62 m_timer = new QTimer(this); 63 connect(m_timer, &QTimer::timeout, [=](){ 64
65 QScatterDataItem *ptr = &dataArray->first(); 66
67 for(int i = 0; i < dataArray->size(); i++){ 68
69 ptr->setPosition(QVector3D(qrand()%8 > 4 ? qrand()%8 : -qrand()%8, 70 qrand()%8 > 4 ? qrand()%8 : -qrand()%8, 71 qrand()%8 > 4 ? qrand()%8 : -qrand()%8)); 72 ptr++; 73 } 74 item->dataProxy()->resetArray(dataArray); 75 }); 76 m_timer->start(2000); 77
78 //让其自身旋转
79 m_rotationTimer = new QTimer(this); 80 connect(m_rotationTimer, &QTimer::timeout, [=]() mutable{ 81
82 QScatterDataItem *ptr = &dataArray->first(); 83
84 for(int i = 0; i < dataArray->size(); i++){ 85
86 QQuaternion ruaternion = QQuaternion::fromAxisAndAngle(QVector3D(0.0f, 0.0f, 1.0f), 87 qrand()%600); 88 ptr->setRotation(ruaternion); 89 ptr++; 90 } 91 item->dataProxy()->resetArray(dataArray); 92 }); 93 m_rotationTimer->start(100); 94 } 95
96 Widget::~Widget() 97 { 98 qDebug() << "Widget::~Widget()"; 99 delete m_graph; 100 delete ui; 101 }