#include "chartdir.h"
int main(int argc, char *argv[])
{
// The XYZ points for the bubble chart
double dataX0[] = {150, 300, 1000, 1700};
double dataY0[] = {12, 60, 25, 65};
double dataZ0[] = {20, 50, 50, 85};
double dataX1[] = {500, 1000, 1300};
double dataY1[] = {35, 50, 75};
double dataZ1[] = {30, 55, 95};
// Create a XYChart object of size 450 x 420 pixels
XYChart *c = new XYChart(450, 420);
// Set the plotarea at (55, 65) and of size 350 x 300 pixels, with a light grey
// border (0xc0c0c0). Turn on both horizontal and vertical grid lines with light
// grey color (0xc0c0c0)
c->setPlotArea(55, 65, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1);
// Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 12
// pts Times Bold Italic font. Set the background and border color to
// Transparent.
c->addLegend(50, 30, false, "timesbi.ttf", 12)->setBackground(Chart::Transparent)
;
// Add a title to the chart using 18 pts Times Bold Itatic font.
c->addTitle("Product Comparison Chart", "timesbi.ttf", 18);
// Add a title to the y axis using 12 pts Arial Bold Italic font
c->yAxis()->setTitle("Capacity (tons)", "arialbi.ttf", 12);
// Add a title to the x axis using 12 pts Arial Bold Italic font
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 semi-transparent red (0x80ff3333)
// circle symbols, where the circle size is modulated by dataZ0. This creates a
// bubble effect.
c->addScatterLayer(DoubleArray(dataX0, sizeof(dataX0)/sizeof(dataX0[0])),
DoubleArray(dataY0, sizeof(dataY0)/sizeof(dataY0[0])), "Technology AAA",
Chart::CircleSymbol, 9, 0x80ff3333, 0x80ff3333)->setSymbolScale(DoubleArray(
dataZ0, sizeof(dataZ0)/sizeof(dataZ0[0])));
// Add (dataX1, dataY1) as a scatter layer with semi-transparent green
// (0x803333ff) circle symbols, where the circle size is modulated by dataZ1.
// This creates a bubble effect.
c->addScatterLayer(DoubleArray(dataX1, sizeof(dataX1)/sizeof(dataX1[0])),
DoubleArray(dataY1, sizeof(dataY1)/sizeof(dataY1[0])), "Technology BBB",
Chart::CircleSymbol, 9, 0x803333ff, 0x803333ff)->setSymbolScale(DoubleArray(
dataZ1, sizeof(dataZ1)/sizeof(dataZ1[0])));
// Output the chart
c->makeChart("bubble.png");
//free up resources
delete c;
return 0;
} |