void createChart(int img, const char *filename)
{
// The data for the pie chart
double data[] = {18, 30, 20, 15};
// The colors to use for the sectors
int colors[] = {0x66aaee, 0xeebb22, 0xbbbbbb, 0x8844ff};
// Create a PieChart object of size 200 x 220 pixels. Use a vertical gradient
// color from blue (0000cc) to deep blue (000044) as background. Use rounded
// corners of 16 pixels radius.
PieChart *c = new PieChart(200, 220);
c->setBackground(c->linearGradientColor(0, 0, 0, c->getHeight(), 0x0000cc,
0x000044));
c->setRoundedFrame(0xffffff, 16);
// Set the center of the pie at (100, 120) and the radius to 80 pixels
c->setPieSize(100, 120, 80);
// Set the pie data
c->setData(DoubleArray(data, sizeof(data)/sizeof(data[0])));
// Set the sector colors
c->setColors(Chart::DataColor, IntArray(colors, sizeof(colors)/sizeof(colors[0]))
);
// Demonstrates various shading modes
if (img == 0) {
c->addTitle("Default Shading", "bold", 12, 0xffffff);
} else if (img == 1) {
c->addTitle("Local Gradient", "bold", 12, 0xffffff);
c->setSectorStyle(Chart::LocalGradientShading);
} else if (img == 2) {
c->addTitle("Global Gradient", "bold", 12, 0xffffff);
c->setSectorStyle(Chart::GlobalGradientShading);
} else if (img == 3) {
c->addTitle("Concave Shading", "bold", 12, 0xffffff);
c->setSectorStyle(Chart::ConcaveShading);
} else if (img == 4) {
c->addTitle("Rounded Edge", "bold", 12, 0xffffff);
c->setSectorStyle(Chart::RoundedEdgeShading);
} else if (img == 5) {
c->addTitle("Radial Gradient", "bold", 12, 0xffffff);
c->setSectorStyle(Chart::RadialShading);
}
// Disable the sector labels by setting the color to Transparent
c->setLabelStyle("", 8, Chart::Transparent);
// Output the chart
c->makeChart(filename);
//free up resources
delete c;
}
int main(int argc, char *argv[])
{
// The data for the pie chart
double data[] = {21, 18, 15, 12, 8, 24};
// The labels for the pie chart
const char *labels[] = {"Labor", "Licenses", "Taxes", "Legal", "Facilities", "Production"};
// The colors to use for the sectors
int colors[] = {0x66aaee, 0xeebb22, 0xbbbbbb, 0x8844ff, 0xdd2222, 0x009900};
// Create a PieChart object of size 600 x 320 pixels. Use a vertical gradient color from light
// blue (99ccff) to white (ffffff) spanning the top 100 pixels as background. Set border to grey
// (888888). Use rounded corners. Enable soft drop shadow.
PieChart *c = new PieChart(600, 320);
c->setBackground(c->linearGradientColor(0, 0, 0, 100, 0x99ccff, 0xffffff), 0x888888);
c->setRoundedFrame();
c->setDropShadow();
// Add a title using 18pt Times New Roman Bold Italic font. Add 16 pixels top margin to the
// title.
c->addTitle("Pie Chart With Legend Demonstration", "timesbi.ttf", 18)->setMargin(0, 0, 16, 0);
// Set the center of the pie at (160, 165) and the radius to 110 pixels
c->setPieSize(160, 165, 110);
// Draw the pie in 3D with a pie thickness of 25 pixels
c->set3D(25);
// Set the pie data and the pie labels
c->setData(DoubleArray(data, (int)(sizeof(data) / sizeof(data[0]))), StringArray(labels, (int)(
sizeof(labels) / sizeof(labels[0]))));
// Set the sector colors
c->setColors(Chart::DataColor, IntArray(colors, (int)(sizeof(colors) / sizeof(colors[0]))));
// Use local gradient shading for the sectors
c->setSectorStyle(Chart::LocalGradientShading);
// Use the side label layout method, with the labels positioned 16 pixels from the pie bounding
// box
c->setLabelLayout(Chart::SideLayout, 16);
// Show only the sector number as the sector label
c->setLabelFormat("{={sector}+1}");
// Set the sector label style to Arial Bold 10pt, with a dark grey (444444) border
c->setLabelStyle("arialbd.ttf", 10)->setBackground(Chart::Transparent, 0x444444);
// Add a legend box, with the center of the left side anchored at (330, 175), and using 10pt
// Arial Bold Italic font
LegendBox *b = c->addLegend(330, 175, true, "arialbi.ttf", 10);
b->setAlignment(Chart::Left);
// Set the legend box border to dark grey (444444), and with rounded conerns
b->setBackground(Chart::Transparent, 0x444444);
b->setRoundedCorners();
// Set the legend box margin to 16 pixels, and the extra line spacing between the legend entries
// as 5 pixels
b->setMargin(16);
b->setKeySpacing(0, 5);
// Set the legend box icon to have no border (border color same as fill color)
b->setKeyBorder(Chart::SameAsMainColor);
// Set the legend text to show the sector number, followed by a 120 pixels wide block showing
// the sector label, and a 40 pixels wide block showing the percentage
b->setText(
"<*block,valign=top*>{={sector}+1}.<*advanceTo=22*><*block,width=120*>{label}<*/*>"
"<*block,width=40,halign=right*>{percent}<*/*>%");
// Output the chart
c->makeChart("legendpie2.png");
//free up resources
delete c;
return 0;
}