ChartDirector 7.1 (C++ Edition)

3D Bubble Chart (2)




This examples demonstrates a bubble chart using brighter glass spheres as bubbles.

Source Code Listing

The following is the command line version of the code in "cppdemo/threedbubble2". The MFC version of the code is in "mfcdemo/mfcdemo". The Qt Widgets version of the code is in "qtdemo/qtdemo". The QML/Qt Quick version of the code is in "qmldemo/qmldemo".
#include "chartdir.h" int main(int argc, char *argv[]) { // The XYZ points for the bubble chart double dataX0[] = {170, 300, 1000, 1700}; const int dataX0_size = (int)(sizeof(dataX0)/sizeof(*dataX0)); double dataY0[] = {16, 69, 16, 75}; const int dataY0_size = (int)(sizeof(dataY0)/sizeof(*dataY0)); double dataZ0[] = {52, 105, 88, 140}; const int dataZ0_size = (int)(sizeof(dataZ0)/sizeof(*dataZ0)); double dataX1[] = {500, 1000, 1300}; const int dataX1_size = (int)(sizeof(dataX1)/sizeof(*dataX1)); double dataY1[] = {40, 58, 85}; const int dataY1_size = (int)(sizeof(dataY1)/sizeof(*dataY1)); double dataZ1[] = {140, 202, 84}; const int dataZ1_size = (int)(sizeof(dataZ1)/sizeof(*dataZ1)); // Create a XYChart object of size 540 x 480 pixels XYChart* c = new XYChart(540, 480); // Set the plotarea at (70, 65) and of size 400 x 350 pixels. Turn on both horizontal and // vertical grid lines with light grey color (0xc0c0c0) c->setPlotArea(70, 65, 400, 350, -1, -1, Chart::Transparent, 0xc0c0c0, -1); // Add a legend box at (70, 30) (top of the chart) with horizontal layout. Use 12pt Times Bold // Italic font. Set the background and border color to Transparent. c->addLegend(70, 30, false, "Times New Roman Bold Italic", 12)->setBackground(Chart::Transparent ); // Add a title to the chart using 18pt Times Bold Itatic font. c->addTitle("Product Comparison Chart", "Times New Roman Bold Italic", 18); // Add titles to the axes using 12pt Arial Bold Italic font c->yAxis()->setTitle("Capacity (tons)", "Arial Bold Italic", 12); c->xAxis()->setTitle("Range (miles)", "Arial Bold Italic", 12); // Set the axes line width to 3 pixels c->xAxis()->setWidth(3); c->yAxis()->setWidth(3); // Add (dataX0, dataY0) as a scatter layer with red (ff3333) glass spheres, where the sphere // size is modulated by dataZ0. This creates a bubble effect. c->addScatterLayer(DoubleArray(dataX0, dataX0_size), DoubleArray(dataY0, dataY0_size), "Technology AAA", Chart::GlassSphere2Shape, 15, 0xff3333)->setSymbolScale(DoubleArray( dataZ0, dataZ0_size)); // Add (dataX1, dataY1) as a scatter layer with blue (0000ff) glass spheres, where the sphere // size is modulated by dataZ1. This creates a bubble effect. c->addScatterLayer(DoubleArray(dataX1, dataX1_size), DoubleArray(dataY1, dataY1_size), "Technology BBB", Chart::GlassSphere2Shape, 15, 0x0000ff)->setSymbolScale(DoubleArray( dataZ1, dataZ1_size)); // Output the chart c->makeChart("threedbubble2.png"); //free up resources delete c; return 0; }