#include "chartdir.h"
int main(int argc, char *argv[])
{
// The data for the area chart
double data0[] = {42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56,
56, 60, 70, 76, 63, 67, 75, 64, 51};
double data1[] = {50, 45, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67,
58, 59, 73, 77, 84, 82, 80, 84, 89};
double data2[] = {61, 79, 85, 66, 53, 39, 24, 21, 37, 56, 37, 22, 21, 33, 13, 17,
4, 23, 16, 25, 9, 10, 5, 7, 16};
const char *labels[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10",
"11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23",
"24"};
// Create a XYChart object of size 500 x 300 pixels
XYChart *c = new XYChart(500, 300);
// Set the plotarea at (90, 30) and of size 300 x 240 pixels.
c->setPlotArea(90, 30, 300, 240);
// Add a legend box at (405, 100)
c->addLegend(405, 100);
// Add a title to the chart
c->addTitle("Daily System Load");
// Add a title to the y axis. Draw the title upright (font angle = 0)
c->yAxis()->setTitle("Database\nQueries\n(per sec)")->setFontAngle(0);
// Set the labels on the x axis.
c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));
// Display 1 out of 2 labels on the x-axis. Show minor ticks for remaining
// labels.
c->xAxis()->setLabelStep(2, 1);
// Add an area layer
AreaLayer *layer = c->addAreaLayer();
// Draw the area layer in 3D
layer->set3D();
// Add the three data sets to the area layer
layer->addDataSet(DoubleArray(data0, sizeof(data0)/sizeof(data0[0])), -1,
"Server # 1");
layer->addDataSet(DoubleArray(data1, sizeof(data1)/sizeof(data1[0])), -1,
"Server # 2");
layer->addDataSet(DoubleArray(data2, sizeof(data2)/sizeof(data2[0])), -1,
"Server # 3");
// output the chart
c->makeChart("threedstackarea.png");
//free up resources
delete c;
return 0;
} |