#include "chartdir.h"
int main(int argc, char *argv[])
{
// The XY data of the first data series
double dataX0[] = {50, 55, 37, 24, 42, 49, 63, 72, 83, 59};
double dataY0[] = {3.6, 2.8, 2.5, 2.3, 3.8, 3.0, 3.8, 5.0, 6.0, 3.3};
// The XY data of the second data series
double dataX1[] = {50, 55, 37, 24, 42, 49, 63, 72, 83, 59};
double dataY1[] = {1.6, 1.8, 0.8, 0.5, 1.3, 1.5, 2.3, 2.4, 2.9, 1.5};
// 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 white
// background and a light grey border (0xc0c0c0). Turn on both horizontal and
// vertical grid lines with light grey color (0xc0c0c0)
c->setPlotArea(55, 65, 350, 300, 0xffffff, -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 point Times Bold Itatic font.
c->addTitle("Server Performance", "timesbi.ttf", 18);
// Add a title to the y axis using 12 pts Arial Bold Italic font
c->yAxis()->setTitle("Response Time (sec)", "arialbi.ttf", 12);
// Set the y axis line width to 3 pixels
c->yAxis()->setWidth(3);
// Set the y axis label format to show 1 decimal point
c->yAxis()->setLabelFormat("{value|1}");
// Add a title to the x axis using 12 pts Arial Bold Italic font
c->xAxis()->setTitle("Server Load (TPS)", "arialbi.ttf", 12);
// Set the x axis line width to 3 pixels
c->xAxis()->setWidth(3);
// Add a scatter layer using (dataX0, dataY0)
c->addScatterLayer(DoubleArray(dataX0, sizeof(dataX0)/sizeof(dataX0[0])),
DoubleArray(dataY0, sizeof(dataY0)/sizeof(dataY0[0])), "Server AAA",
Chart::DiamondSymbol, 11, 0x008000);
// Add a trend line layer for (dataX0, dataY0)
c->addTrendLayer(DoubleArray(dataX0, sizeof(dataX0)/sizeof(dataX0[0])),
DoubleArray(dataY0, sizeof(dataY0)/sizeof(dataY0[0])), 0x008000
)->setLineWidth(3);
// Add a scatter layer for (dataX1, dataY1)
c->addScatterLayer(DoubleArray(dataX1, sizeof(dataX1)/sizeof(dataX1[0])),
DoubleArray(dataY1, sizeof(dataY1)/sizeof(dataY1[0])), "Server BBB",
Chart::TriangleSymbol, 9, 0x6666ff);
// Add a trend line layer for (dataX1, dataY1)
c->addTrendLayer(DoubleArray(dataX1, sizeof(dataX1)/sizeof(dataX1[0])),
DoubleArray(dataY1, sizeof(dataY1)/sizeof(dataY1[0])), 0x6666ff
)->setLineWidth(3);
// output the chart
c->makeChart("scattertrend.png");
//free up resources
delete c;
return 0;
} |