#include "chartdir.h"
int main(int argc, char *argv[])
{
// Sample data for the Box-Whisker chart. Represents the minimum, 1st quartile,
// medium, 3rd quartile and maximum values of some quantities
double Q0Data[] = {40, 45, 40, 30, 20, 50, 25, 44};
double Q1Data[] = {55, 60, 50, 40, 38, 60, 51, 60};
double Q2Data[] = {62, 70, 60, 50, 48, 70, 62, 70};
double Q3Data[] = {70, 80, 65, 60, 53, 78, 69, 76};
double Q4Data[] = {80, 90, 75, 70, 60, 85, 80, 84};
// The labels for the chart
const char *labels[] = {"Group A", "Group B", "Group C", "Group D", "Group E",
"Group F", "Group G", "Group H"};
// Create a XYChart object of size 550 x 250 pixels
XYChart *c = new XYChart(550, 275);
// Set the plotarea at (50, 25) and of size 450 x 200 pixels. Enable both
// horizontal and vertical grids by setting their colors to grey (0xc0c0c0)
c->setPlotArea(50, 50, 450, 200)->setGridColor(0xc0c0c0, 0xc0c0c0);
// Add a title to the chart
c->addTitle("Computer Vision Test Scores");
// Set the labels on the x axis and the font to Arial Bold
c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0]))
)->setFontStyle("arialbd.ttf");
// Set the font for the y axis labels to Arial Bold
c->yAxis()->setLabelStyle("arialbd.ttf");
// Add a Box Whisker layer using light blue 0x9999ff as the fill color and blue
// (0xcc) as the line color. Set the line width to 2 pixels
c->addBoxLayer(DoubleArray(Q4Data, sizeof(Q4Data)/sizeof(Q4Data[0])),
DoubleArray(Q3Data, sizeof(Q3Data)/sizeof(Q3Data[0])), 0x00ff00, "Top 25%");
c->addBoxLayer(DoubleArray(Q3Data, sizeof(Q3Data)/sizeof(Q3Data[0])),
DoubleArray(Q2Data, sizeof(Q2Data)/sizeof(Q2Data[0])), 0x9999ff, "25% - 50%")
;
c->addBoxLayer(DoubleArray(Q2Data, sizeof(Q2Data)/sizeof(Q2Data[0])),
DoubleArray(Q1Data, sizeof(Q1Data)/sizeof(Q1Data[0])), 0xffff00, "50% - 75%")
;
c->addBoxLayer(DoubleArray(Q1Data, sizeof(Q1Data)/sizeof(Q1Data[0])),
DoubleArray(Q0Data, sizeof(Q0Data)/sizeof(Q0Data[0])), 0xff0000, "Bottom 25%"
);
// Add legend box at top center above the plot area using 10 pts Arial Bold Font
LegendBox *b = c->addLegend(50 + 225, 22, false, "arialbd.ttf", 10);
b->setAlignment(Chart::TopCenter);
b->setBackground(Chart::Transparent);
// output the chart
c->makeChart("floatingbox.png");
//free up resources
delete c;
return 0;
} |