#include "chartdir.h"
int main(int argc, char *argv[])
{
// The data for the bar chart
double data0[] = {100, 125, 245, 147, 67};
double data1[] = {85, 156, 179, 211, 123};
double data2[] = {97, 87, 56, 267, 157};
const char *labels[] = {"Mon", "Tue", "Wed", "Thur", "Fri"};
// Create a XYChart object of size 540 x 375 pixels
XYChart *c = new XYChart(540, 375);
// Add a title to the chart using 18 pts Times Bold Italic font
c->addTitle("Average Weekly Network Load", "timesbi.ttf", 18);
// Set the plotarea at (50, 55) and of 440 x 280 pixels in size. Use a vertical
// gradient color from grey (888888) to black (000000) as background. Set border
// and grid lines to white (ffffff).
c->setPlotArea(50, 55, 440, 280, c->linearGradientColor(0, 55, 0, 335, 0x888888,
0x000000), -1, 0xffffff, 0xffffff);
// Add a legend box at (50, 25) using horizontal layout. Use 10pts Arial Bold as
// font, with transparent background.
c->addLegend(50, 25, false, "arialbd.ttf", 10)->setBackground(Chart::Transparent)
;
// Set the x axis labels
c->xAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]
))));
// Draw the ticks between label positions (instead of at label positions)
c->xAxis()->setTickOffset(0.5);
// Set axis label style to 8pts Arial Bold
c->xAxis()->setLabelStyle("arialbd.ttf", 8);
c->yAxis()->setLabelStyle("arialbd.ttf", 8);
// Set axis line width to 2 pixels
c->xAxis()->setWidth(2);
c->yAxis()->setWidth(2);
// Add axis title
c->yAxis()->setTitle("Throughput (MBytes Per Hour)");
// Add a multi-bar layer with 3 data sets and 4 pixels 3D depth
BarLayer *layer = c->addBarLayer(Chart::Side, 4);
layer->addDataSet(DoubleArray(data0, (int)(sizeof(data0) / sizeof(data0[0]))),
0x66aaee, "Server #1");
layer->addDataSet(DoubleArray(data1, (int)(sizeof(data1) / sizeof(data1[0]))),
0xeebb22, "Server #2");
layer->addDataSet(DoubleArray(data2, (int)(sizeof(data2) / sizeof(data2[0]))),
0xcc0000, "Server #3");
// Set bar border to transparent. Use bar gradient lighting with light intensity
// from 0.75 to 1.75.
layer->setBorderColor(Chart::Transparent, Chart::barLighting(0.75, 1.75));
// Configure the bars within a group to touch each others (no gap)
layer->setBarGap(0.2, Chart::TouchBar);
// Output the chart
c->makeChart("gradientmultibar.png");
//free up resources
delete c;
return 0;
} |