#include "chartdir.h"
int main(int argc, char *argv[])
{
// The XY points for the scatter chart
double dataX[] = {150, 400, 300, 1500, 800};
double dataY[] = {0.6, 8, 5.4, 2, 4};
// The labels for the points
const char *labels[] = {"Nano\n100", "SpeedTron\n200 Lite", "SpeedTron\n200",
"Marathon\nExtra", "Marathon\n2000"};
// Create a XYChart object of size 450 x 400 pixels
XYChart *c = new XYChart(450, 400);
// Set the plotarea at (55, 40) 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, 40, 350, 300, 0xffffff, -1, 0xc0c0c0, 0xc0c0c0, -1);
// 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 the data as a scatter chart layer, using a 15 pixel circle as the symbol
ScatterLayer *layer = c->addScatterLayer(DoubleArray(dataX,
sizeof(dataX)/sizeof(dataX[0])), DoubleArray(dataY,
sizeof(dataY)/sizeof(dataY[0])), "Server BBB", Chart::CircleSymbol, 15,
0xff3333, 0xff3333);
// Add labels to the chart as an extra field
layer->addExtraField(StringArray(labels, sizeof(labels)/sizeof(labels[0])));
// Set the data label format to display the extra field
layer->setDataLabelFormat("{field0}");
// Use 8pts Arial Bold to display the labels
TextBox *textbox = layer->setDataLabelStyle("arialbd.ttf", 8);
// Set the background to purple with a 1 pixel 3D border
textbox->setBackground(0xcc99ff, Chart::Transparent, 1);
// Put the text box 4 pixels to the right of the data point
textbox->setAlignment(Chart::Left);
textbox->setPos(4, 0);
// output the chart
c->makeChart("scatterlabels.png");
//free up resources
delete c;
return 0;
} |