예제 #1
0
int main(int argc, char *argv[])
{
    // The x and y coordinates of the grid
    double dataX[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    double dataY[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    // Use random numbers for the z values on the XY grid
    RanSeries *r = new RanSeries(999);
    DoubleArray dataZ = r->get2DSeries((int)(sizeof(dataX) / sizeof(dataX[0])), (int)(sizeof(dataY)
         / sizeof(dataY[0])), -0.9, 1.15);

    // Create a XYChart object of size 640 x 460 pixels
    XYChart *c = new XYChart(640, 460);

    // Set the plotarea at (30, 25) and of size 400 x 400 pixels. Use semi-transparent grey
    // (0xdd000000) horizontal and vertical grid lines
    c->setPlotArea(50, 25, 400, 400, -1, -1, Chart::Transparent, 0xdd000000, -1);

    // Set the x and y axis stems to transparent and the label font to 12pt Arial
    c->xAxis()->setColors(Chart::Transparent);
    c->yAxis()->setColors(Chart::Transparent);
    c->xAxis()->setLabelStyle("arial.ttf", 12);
    c->yAxis()->setLabelStyle("arial.ttf", 12);

    // Set the x-axis and y-axis scale
    c->xAxis()->setLinearScale(0, 10, 1);
    c->yAxis()->setLinearScale(0, 10, 1);

    // Add a contour layer using the given data
    ContourLayer *layer = c->addContourLayer(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0
        ]))), DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0]))), dataZ);

    // Move the grid lines in front of the contour layer
    c->getPlotArea()->moveGridBefore(layer);

    // Define the color scale
    double colorScale[] = {-0.8, 0x0066ff, -0.5, 0x66ccff, -0.3, 0x66ffff, 0, 0x88ff88, 0.4,
        0x00ff00, 0.7, 0xffff00, 0.9, 0xff6600, 1.0, 0xcc0000, 1.1};
    // Apply the color scale, and specify the underflow and overflow colors for regions exceeding
    // the color scale
    layer->colorAxis()->setColorScale(DoubleArray(colorScale, (int)(sizeof(colorScale) / sizeof(
        colorScale[0]))), 0x0000cc, 0x000000);

    //
    // Instead of displaying the color axis, we use a legend box to display the colors. This is
    // useful for colors that are unevenly spaced on the color axis.
    //

    // Add a legend box at (460, 25) with vertical layout, with 12pt Arial font, transparent
    // background and border, icon size of 15 x 15 pixels, and line spacing of 8 pixels.
    LegendBox *b = c->addLegend(460, 25, true, "arial.ttf", 12);
    b->setBackground(Chart::Transparent, Chart::Transparent);
    b->setKeySize(15, 15);
    b->setKeySpacing(0, 8);

    // Add the legend box entries
    b->addKey("> 1.1 (Critical)", 0x000000);
    b->addKey("1.0 to 1.1 (Alert)", 0xcc0000);
    b->addKey("0.9 to 1.0", 0xff6600);
    b->addKey("0.7 to 0.9", 0xffff00);
    b->addKey("0.4 to 0.7", 0x00ff00);
    b->addKey("0.0 to 0.4", 0x88ff88);
    b->addKey("-0.3 to 0.0", 0x66ffff);
    b->addKey("-0.5 to -0.3", 0x66ccff);
    b->addKey("-0.8 to -0.5", 0x0066ff);
    b->addKey("< -0.8", 0x0000cc);

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

    //free up resources
    delete r;
    delete c;
    return 0;
}
예제 #2
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;
}