int main(int argc, char *argv[])
{
    // The data for the pie chart
    double data[] = {72, 18, 15, 12};

    // The depths for the sectors
    double depths[] = {30, 20, 10, 10};

    // The labels for the pie chart
    const char *labels[] = {"Sunny", "Cloudy", "Rainy", "Snowy"};

    // The icons for the sectors
    const char *icons[] = {"sun.png", "cloud.png", "rain.png", "snowy.png"};

    // Create a PieChart object of size 400 x 300 pixels
    PieChart *c = new PieChart(400, 300);

    // Use the semi-transparent palette for this chart
    c->setColors(Chart::transparentPalette);

    // Set the background to metallic light blue (CCFFFF), with a black border and 1
    // pixel 3D border effect,
    c->setBackground(Chart::metalColor(0xccccff), 0x000000, 1);

    // Set donut center at (200, 175), and outer/inner radii as 100/50 pixels
    c->setDonutSize(200, 175, 100, 50);

    // Add a title box using 15 pts Times Bold Italic font and metallic blue (8888FF)
    // background color
    c->addTitle("Weather Profile in Wonderland", "timesbi.ttf", 15)->setBackground(
        Chart::metalColor(0x8888ff));

    // Set the pie data and the pie labels
    c->setData(DoubleArray(data, sizeof(data)/sizeof(data[0])), StringArray(labels,
        sizeof(labels)/sizeof(labels[0])));

    // Add icons to the chart as a custom field
    c->addExtraField(StringArray(icons, sizeof(icons)/sizeof(icons[0])));

    // Configure the sector labels using CDML to include the icon images
    c->setLabelFormat(
        "<*block,valign=absmiddle*><*img={field0}*> <*block*>{label}\n{percent}%"
        "<*/*><*/*>");

    // Draw the pie in 3D with variable 3D depths
    c->set3D(DoubleArray(depths, sizeof(depths)/sizeof(depths[0])));

    // Set the start angle to 225 degrees may improve layout when the depths of the
    // sector are sorted in descending order, because it ensures the tallest sector
    // is at the back.
    c->setStartAngle(225);

    // Output the chart
    c->makeChart("icondonut.png");

    //free up resources
    delete c;
    return 0;
}
int main(int argc, char *argv[])
{
    // The data for the pie chart
    double data[] = {18, 45, 28};

    // The labels for the pie chart
    const char *labels[] = {"Marble", "Wood", "Granite"};

    // The icons for the sectors
    const char *texture[] = {"marble3.png", "wood.png", "rock.png"};

    // Create a PieChart object of size 400 x 330 pixels, with a metallic green
    // (88EE88) background, black border and 1 pixel 3D border effect
    PieChart *c = new PieChart(400, 330, Chart::metalColor(0x88ee88), 0x000000, 1);

    // Set donut center at (200, 160), and outer/inner radii as 120/60 pixels
    c->setDonutSize(200, 160, 120, 60);

    // Add a title box using 15 pts Times Bold Italic font and metallic deep green
    // (008000) background color
    c->addTitle("Material Composition", "timesbi.ttf", 15)->setBackground(
        Chart::metalColor(0x008000));

    // Set the pie data and the pie labels
    c->setData(DoubleArray(data, sizeof(data)/sizeof(data[0])), StringArray(labels,
        sizeof(labels)/sizeof(labels[0])));

    // Set the colors of the sectors to the 3 texture patterns
    c->setColor(Chart::DataColor + 0, c->patternColor(texture[0]));
    c->setColor(Chart::DataColor + 1, c->patternColor(texture[1]));
    c->setColor(Chart::DataColor + 2, c->patternColor(texture[2]));

    // Draw the pie in 3D with a 3D depth of 30 pixels
    c->set3D(30);

    // Use 12 pts Arial Bold Italic as the sector label font
    c->setLabelStyle("arialbi.ttf", 12);

    // Output the chart
    c->makeChart("texturedonut.png");

    //free up resources
    delete c;
    return 0;
}
示例#3
0
void createChart(int chartIndex, const char *filename)
{
    char buffer[256];

    // Determine the donut inner radius (as percentage of outer radius) based on input parameter
    int donutRadius = chartIndex * 25;

    // The data for the pie chart
    double data[] = {10, 10, 10, 10, 10};

    // The labels for the pie chart
    const char *labels[] = {"Marble", "Wood", "Granite", "Plastic", "Metal"};

    // Create a PieChart object of size 150 x 120 pixels, with a grey (EEEEEE) background, black
    // border and 1 pixel 3D border effect
    PieChart *c = new PieChart(150, 120, 0xeeeeee, 0x000000, 1);

    // Set donut center at (75, 65) and the outer radius to 50 pixels. Inner radius is computed
    // according donutWidth
    c->setDonutSize(75, 60, 50, 50 * donutRadius / 100);

    // Add a title to show the donut width
    sprintf(buffer, "Inner Radius = %d %%", donutRadius);
    c->addTitle(buffer, "arial.ttf", 10)->setBackground(0xcccccc, 0);

    // Draw the pie in 3D
    c->set3D(12);

    // 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]))));

    // 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[] = {25, 18, 15, 12, 8, 30, 35};

    // The labels for the pie chart
    const char *labels[] = {"Labor", "Licenses", "Taxes", "Legal", "Insurance",
        "Facilities", "Production"};

    // Create a PieChart object of size 600 x 320 pixels. Set background color to
    // brushed silver, with a 2 pixel 3D border. Use rounded corners of 20 pixels
    // radius.
    PieChart *c = new PieChart(600, 320, Chart::brushedSilverColor(),
        Chart::Transparent, 2);
    c->setRoundedFrame(0xffffff, 20);

    // Add a title using 18 pts Times New Roman Bold Italic font. #Set top/bottom
    // margins to 8 pixels.
    TextBox *title = c->addTitle("Donut Chart Demonstration", "timesbi.ttf", 18);
    title->setMargin(0, 0, 8, 8);

    // Add a 2 pixels wide separator line just under the title
    c->addLine(10, title->getHeight(), c->getWidth() - 11, title->getHeight(),
        Chart::LineColor, 2);

    // Set donut center at (160, 175), and outer/inner radii as 110/55 pixels
    c->setDonutSize(160, 175, 110, 55);

    // Set the pie data and the pie labels
    c->setData(DoubleArray(data, sizeof(data)/sizeof(data[0])), StringArray(labels,
        sizeof(labels)/sizeof(labels[0])));

    // Use ring shading effect for the sectors
    c->setSectorStyle(Chart::RingShading);

    // Use the side label layout method, with the labels positioned 16 pixels from
    // the donut 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 10 pts 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 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("donut.jpg");

    //free up resources
    delete c;
    return 0;
}