Custom Scatter Symbols

The following is the command line version of the code in "cppdemo/scattersymbols". 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 XY points for the scatter chart
    double dataX[] = {200, 400, 300, 250, 500};
    const int dataX_size = (int)(sizeof(dataX)/sizeof(*dataX));
    double dataY[] = {40, 100, 50, 150, 250};
    const int dataY_size = (int)(sizeof(dataY)/sizeof(*dataY));

    // The custom symbols for the points
    const char* symbols[] = {"robot1.png", "robot2.png", "robot3.png", "robot4.png", "robot5.png"};
    const int symbols_size = (int)(sizeof(symbols)/sizeof(*symbols));

    // Create a XYChart object of size 450 x 400 pixels
    XYChart* c = new XYChart(450, 400);

    // Set the plotarea at (55, 40) and of size 350 x 300 pixels, with a light grey border
    // (0xc0c0c0). Turn on both horizontal and vertical grid lines with light grey color (0xc0c0c0)
    c->setPlotArea(55, 40, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1);

    // Add a title to the chart using 18pt Times Bold Itatic font.
    c->addTitle("Battle Robots", "Times New Roman Bold Italic", 18);

    // Add a title to the y axis using 12pt Arial Bold Italic font
    c->yAxis()->setTitle("Speed (km/s)", "Arial Bold Italic", 12);

    // Add a title to the y axis using 12pt Arial Bold Italic font
    c->xAxis()->setTitle("Range (km)", "Arial Bold Italic", 12);

    // Set the axes line width to 3 pixels
    c->xAxis()->setWidth(3);
    c->yAxis()->setWidth(3);

    // Add each point of the data as a separate scatter layer, so that they can have a different
    // symbol
    for(int i = 0; i < dataX_size; ++i) {
        double xCoor[] = {dataX[i]};
        double yCoor[] = {dataY[i]};
        c->addScatterLayer(DoubleArray(xCoor, 1), DoubleArray(yCoor, 1))->getDataSet(0
            )->setDataSymbol(symbols[i]);
    }

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

    //free up resources
    delete c;

    return 0;
}