Exemplo n.º 1
0
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;
}
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;
}