Wafer Map

The following is the command line version of the code in "cppdemo/wafermap". 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 diameter of the wafer
    int diameter = 20;
    double radius = diameter / 2.0;

    // The random data array are for a square grid of 20 x 20 cells
    RanSeries* r = new RanSeries(2);
    DoubleArray zData = r->get2DSeries(diameter, diameter, 0, 100);

    // We remove cells that are outside the wafer circle by setting them to NoValue
    for(int i = 0; i < zData.len; ++i) {
        double x = i % diameter + 0.5;
        double y = (i - x) / diameter + 0.5;
        if ((x - radius) * (x - radius) + (y - radius) * (y - radius) > radius * radius) {
            ((double*)(zData.data))[i] = Chart::NoValue;
        }
    }

    // Create an XYChart object of size 520 x 480 pixels.
    XYChart* c = new XYChart(520, 480);

    // Add a title the chart with 15pt Arial Bold font
    c->addTitle("Wafer Map Demonstration", "Arial Bold", 15);

    // Set the plotarea at (50, 40) and of size 400 x 400 pixels. Set the backgound and border to
    // transparent. Set both horizontal and vertical grid lines to light grey. (0xdddddd)
    PlotArea* p = c->setPlotArea(50, 40, 400, 400, -1, -1, Chart::Transparent, 0xdddddd, 0xdddddd);

    // Create a discrete heat map with 20 x 20 cells
    DiscreteHeatMapLayer* layer = c->addDiscreteHeatMapLayer(zData, diameter);

    // Set the x-axis scale. Use 8pt Arial Bold font. Set axis color to transparent, so only the
    // labels visible. Set 0.5 offset to position the labels in between the grid lines.
    c->xAxis()->setLinearScale(0, diameter, 1);
    c->xAxis()->setLabelStyle("Arial Bold", 8);
    c->xAxis()->setColors(Chart::Transparent, Chart::TextColor);
    c->xAxis()->setLabelOffset(0.5);

    // Set the y-axis scale. Use 8pt Arial Bold font. Set axis color to transparent, so only the
    // labels visible. Set 0.5 offset to position the labels in between the grid lines.
    c->yAxis()->setLinearScale(0, diameter, 1);
    c->yAxis()->setLabelStyle("Arial Bold", 8);
    c->yAxis()->setColors(Chart::Transparent, Chart::TextColor);
    c->yAxis()->setLabelOffset(0.5);

    // Position the color axis 20 pixels to the right of the plot area and of the same height as the
    // plot area. Put the labels on the right side of the color axis. Use 8pt Arial Bold font for
    // the labels.
    ColorAxis* cAxis = layer->setColorAxis(p->getRightX() + 20, p->getTopY(), Chart::TopLeft,
        p->getHeight(), Chart::Right);
    cAxis->setLabelStyle("Arial Bold", 8);

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

    //free up resources
    delete r;
    delete c;

    return 0;
}