Depth Area Chart

The following is the command line version of the code in "cppdemo/deptharea". The MFC version of the code is in "mfcdemo/mfcdemo". The Qt Widgets version of the code is in "qtdemo/qtdemo". The QML/Qt Quick version of the code is in "qmldemo/qmldemo".

#include "chartdir.h"

int main(int argc, char *argv[])
{
    // The data for the area chart
    double data0[] = {42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56, 60, 70,
        76, 63, 67, 75, 64, 51};
    const int data0_size = (int)(sizeof(data0)/sizeof(*data0));
    double data1[] = {50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73,
        77, 84, 82, 80, 84, 89};
    const int data1_size = (int)(sizeof(data1)/sizeof(*data1));
    double data2[] = {87, 89, 85, 66, 53, 39, 24, 21, 37, 56, 37, 22, 21, 33, 13, 17, 4, 23, 16, 25,
        9, 10, 5, 7, 6};
    const int data2_size = (int)(sizeof(data2)/sizeof(*data2));
    const char* labels[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12",
        "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};
    const int labels_size = (int)(sizeof(labels)/sizeof(*labels));

    // Create a XYChart object of size 350 x 230 pixels
    XYChart* c = new XYChart(350, 230);

    // Set the plotarea at (50, 30) and of size 250 x 150 pixels.
    c->setPlotArea(50, 30, 250, 150);

    // Add a legend box at (55, 0) (top of the chart) using 8pt Arial Font. Set background and
    // border to Transparent.
    c->addLegend(55, 0, false, "", 8)->setBackground(Chart::Transparent);

    // Add a title to the x axis
    c->xAxis()->setTitle("Network Load for Jun 12");

    // Add a title to the y axis
    c->yAxis()->setTitle("MBytes");

    // Set the labels on the x axis.
    c->xAxis()->setLabels(StringArray(labels, labels_size));

    // Display 1 out of 2 labels on the x-axis. Show minor ticks for remaining labels.
    c->xAxis()->setLabelStep(2, 1);

    // Add three area layers, each representing one data set. The areas are drawn in
    // semi-transparent colors.
    c->addAreaLayer(DoubleArray(data2, data2_size), 0x808080ff, "Server #1", 3);
    c->addAreaLayer(DoubleArray(data0, data0_size), 0x80ff0000, "Server #2", 3);
    c->addAreaLayer(DoubleArray(data1, data1_size), 0x8000ff00, "Server #3", 3);

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

    //free up resources
    delete c;

    return 0;
}