
This examples demonstrates a bubble chart using solid spheres as bubbles.
ChartDirector 6.0 (C++ Edition)
3D Bubble Chart (3)
Source Code Listing
#include "chartdir.h" int main(int argc, char *argv[]) { // The XYZ points for the bubble chart double dataX0[] = {170, 300, 1000, 1700}; double dataY0[] = {16, 69, 16, 75}; double dataZ0[] = {52, 105, 88, 140}; double dataX1[] = {500, 1000, 1300}; double dataY1[] = {40, 58, 85}; double dataZ1[] = {140, 202, 84}; // 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, "timesbi.ttf", 12)->setBackground(Chart::Transparent); // Add a title to the chart using 18pt Times Bold Itatic font. c->addTitle("Product Comparison Chart", "timesbi.ttf", 18); // Add titles to the axes using 12pt Arial Bold Italic font c->yAxis()->setTitle("Capacity (tons)", "arialbi.ttf", 12); c->xAxis()->setTitle("Range (miles)", "arialbi.ttf", 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) spheres, where the sphere size is // modulated by dataZ0. This creates a bubble effect. c->addScatterLayer(DoubleArray(dataX0, (int)(sizeof(dataX0) / sizeof(dataX0[0]))), DoubleArray( dataY0, (int)(sizeof(dataY0) / sizeof(dataY0[0]))), "Technology AAA", Chart::SolidSphereShape, 15, 0xff3333)->setSymbolScale(DoubleArray(dataZ0, (int)(sizeof( dataZ0) / sizeof(dataZ0[0])))); // Add (dataX1, dataY1) as a scatter layer with blue (0000ff) spheres, where the sphere size is // modulated by dataZ1. This creates a bubble effect. c->addScatterLayer(DoubleArray(dataX1, (int)(sizeof(dataX1) / sizeof(dataX1[0]))), DoubleArray( dataY1, (int)(sizeof(dataY1) / sizeof(dataY1[0]))), "Technology BBB", Chart::SolidSphereShape, 15, 0x0000ff)->setSymbolScale(DoubleArray(dataZ1, (int)(sizeof( dataZ1) / sizeof(dataZ1[0])))); // Output the chart c->makeChart("threedbubble3.png"); //free up resources delete c; return 0; } |