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基于qwtplot3d的QT 3d 波形显示

时间:2021-03-03 19:21:43      阅读:4      评论:0      收藏:0      [点我收藏+]

qwtplot3d下载地址:

https://github.com/sintegrial/qwtplot3d

示例运行效果

技术分享图片

部分代码:

技术分享图片
  1 QtWidgets3DTest::QtWidgets3DTest(QWidget *parent)
  2     : QMainWindow(parent)
  3 {
  4     ui.setupUi(this);  
  5 
  6     QGridLayout *grid = new QGridLayout(ui.frame); 
  7     dataWidget = new GridPlot(ui.frame);
  8     grid->addWidget(dataWidget, 0, 0);
  9 
 10     //ui.btnColor->setVisible(false);
 11     ui.cbxDataType->addItem("Default");
 12     ui.cbxDataType->addItem("Sine");
 13     ui.cbxDataType->addItem("White Noise");
 14 
 15     ui.cbxAxisStyle->addItem("Box"); 
 16     ui.cbxAxisStyle->addItem("XYZ");
 17     ui.cbxAxisStyle->addItem("None"); 
 18 
 19     ui.cbxStyle->addItem("point");
 20     ui.cbxStyle->addItem("wireframe");
 21     ui.cbxStyle->addItem("hiddenline");
 22     ui.cbxStyle->addItem("polygon");
 23     ui.cbxStyle->addItem("filledmesh"); 
 24     ui.cbxStyle->addItem("NoData");
 25      
 26     connect(ui.btnReset, SIGNAL(clicked()), this, SLOT(setStandardView()));
 27     connect(ui.btnRotate, SIGNAL(clicked()), this, SLOT(pickAnimation()));
 28     
 29     connect(ui.cbxDataType, SIGNAL(currentIndexChanged(int)), this, SLOT(pickDataStyle(int)));
 30     connect(ui.cbxAxisStyle, SIGNAL(currentIndexChanged(int)), this, SLOT(pickCoordSystem(int)));
 31     connect(ui.cbxStyle, SIGNAL(currentIndexChanged(int)), this, SLOT(pickPlotStyle(int)));
 32 
 33     connect(ui.chxMouse, SIGNAL(toggled(bool)), dataWidget, SLOT(enableMouse(bool)));
 34     connect(ui.chxProjection, SIGNAL(toggled(bool)), this, SLOT(toggleProjectionMode(bool)));
 35     connect(ui.chxColorlegend, SIGNAL(toggled(bool)), this, SLOT(toggleColorLegend(bool)));
 36     connect(ui.chxAutoscale, SIGNAL(toggled(bool)), this, SLOT(toggleAutoScale(bool)));
 37     connect(ui.chxShader, SIGNAL(toggled(bool)), this, SLOT(toggleShader(bool)));
 38 
 39     connect(&timerWaterfall, SIGNAL(timeout()), this, SLOT(UpdateData()));
 40     rotateTimer = new QTimer(this);
 41     connect(rotateTimer, SIGNAL(timeout()), this, SLOT(rotate()));
 42 
 43     dataWidget->coordinates()->setLineSmooth(true);
 44     dataWidget->setRenderThreadsCount(8);
 45     setStandardView();
 46     resetColors();
 47     resetFonts();
 48     dataWidget->enableMouse(true);
 49     dataWidget->setKeySpeed(15, 20, 20);
 50      
 51     dataWidget->setPlotStyle(FILLED);//polygon
 52     ui.cbxStyle->setCurrentIndex(3);
 53     toggleAutoScale(false);
 54     toggleShader(false);
 55     //timerWaterfall.stop();
 56     ui.cbxDataType->setCurrentIndex(1);//Sine
 57     ui.cbxAxisStyle->setCurrentIndex(1);//XYZ
 58     pickDataStyle(1);
 59 }
 60 
 61 void QtWidgets3DTest::pickDataStyle(int idx)
 62 {
 63     if (idx == 1)
 64     {
 65         InitSineWaterfallData();
 66     } 
 67     else if (idx == 2)
 68     {
 69          
 70     } 
 71     else
 72     {  
 73         InitWaterfallData();
 74     } 
 75     dataWidget->update();
 76 }
 77 
 78 void  QtWidgets3DTest::InitWaterfallData()
 79 {
 80     // fill initial data
 81     for (int i = 0; i < colmums; i++)
 82     {
 83         dataWaterfall[i] = new double[rows];
 84         double zval = 50;
 85         for (int j = 0; j < rows; j++)
 86         {
 87             dataWaterfall[i][j] = zval;
 88             zval = zval+ rand() % 3 - 1;
 89         }
 90     } 
 91     timerWaterfall.setInterval(50);
 92     timerWaterfall.start();
 93 }
 94 
 95 void QtWidgets3DTest::UpdateData()
 96 {
 97     if (ui.cbxDataType->currentIndex() == 1)
 98     {   
 99         double armp = qrand() % (5, 100);
100         for (int i = 0; i < colmums; i++)
101         {
102             for (int j = 1; j < rows; j++)
103             {
104                 /*if ( j % 5 == 0)
105                     dataWaterfall[i][j - 1] = std::numeric_limits<double>::quiet_NaN();
106                 else*/
107                     dataWaterfall[i][j - 1] = dataWaterfall[i][j];
108             }
109         } 
110         for (int i = 0; i < colmums; i++)
111         {
112             double t = (float)i / rows;
113             double zval = 0;
114             //if (i % 3 == 0|| i % 5 == 0)
115             //    zval = std::numeric_limits<double>::quiet_NaN();//减少数据密度,增加运行速度 by yanglk 15923358280
116             //else
117                 zval = armp * sin(2 * PI * frequencySine * t);
118 
119             dataWaterfall[i][rows - 1] = zval;
120         }
121     }
122     else
123     { 
124         for (int i = 0; i < colmums; i++)
125         {
126             for (int j = 1; j < rows; j++)
127             {
128                 dataWaterfall[i][j - 1] = dataWaterfall[i][j];
129             }
130         }
131         double zval = 50;
132         for (int i = 0; i < colmums; i++)
133         {
134             dataWaterfall[i][rows - 1] = zval;
135             zval += rand() % 3 - 1;
136             if (rand() % 5 == 1)
137                 dataWaterfall[i][rows - 1] = std::numeric_limits<double>::quiet_NaN();
138         }
139     }
140     
141     QElapsedTimer tim;
142     tim.start();
143     int ylen = rows * 6;
144     // update dataset
145     dataWidget->createDataset(dataWaterfall, colmums, rows, 0, colmums, 0, ylen);
146 
147     qint64 rate = tim.elapsed();
148     dataWidget->setTitle(QString("Dynamic Plotter Demon - Frame Time %1 ms").arg(rate));
149     dataWidget->coordinates()->axes[X1].setLabelString("Size");
150     dataWidget->coordinates()->axes[Y1].setLabelString("Times");
151     dataWidget->coordinates()->axes[Z1].setLabelString("Amplitude");
152     //dataWidget->setResolution(0); 
153     dataWidget->update();
154 }
155 
156 void  QtWidgets3DTest::InitSineWaterfallData()
157 {
158     // fill initial data  
159     for (int i = 0; i < colmums; i++)
160     {
161         dataWaterfall[i] = new double[rows];
162         for (int j = 0; j < rows; j++)
163         { 
164             dataWaterfall[i][j] = std::numeric_limits<double>::quiet_NaN();
165         }
166     }
167     for (int i = 0; i < colmums; i++)
168     {
169         double t = (float)i / colmums;
170         double zval = amplitudeSine * sin(2 * PI * frequencySine * t);
171         dataWaterfall[i][0] = zval;
172     }
173     timerWaterfall.setInterval(50);
174     timerWaterfall.start();
175 }
View Code

说明

1,dataWidget->createDataset(dataWaterfall, colmums, rows, 0, colmums, 0, ylen);“colmums, rows”可设置X轴Y轴的间隔和刻度

2,\src\qwt3d_gridplot.cpp,GridPlot::CVertexProcessor::run()方法是画格子线的,如果只想画一个方向的线条,可以注释点另一个方向的画线逻辑

3,如果不需要法线,可以注释掉带“Normals”的相关方法。

待实现:

1,鼠标获取当前XYZ值,以及当前XYZ轴的上所有点的颜色

2,增加X轴Y轴光标。

 如需要原码可联系

基于qwtplot3d的QT 3d 波形显示

原文:https://www.cnblogs.com/Rock-lynn/p/14475795.html

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