ChartDirector 6.0 (C++ Edition)

The First Project




To get a feeling of using ChartDirector, and to verify the ChartDirector development environment is set up properly, we will begin by building a very simple bar chart.

The following program comes from the sample programs included in the ChartDirector distribution. Please refer to the Installation section for details and how to compile it.

[The following code is available in "cppdemo/simplebar".]
#include "chartdir.h"

int main(int argc, char *argv[])
{
    // The data for the bar chart
    double data[] = {85, 156, 179.5, 211, 123};

    // The labels for the bar chart
    const char *labels[] = {"Mon", "Tue", "Wed", "Thu", "Fri"};

    // Create a XYChart object of size 250 x 250 pixels
    XYChart *c = new XYChart(250, 250);

    // Set the plotarea at (30, 20) and of size 200 x 200 pixels
    c->setPlotArea(30, 20, 200, 200);

    // Add a bar chart layer using the given data
    c->addBarLayer(DoubleArray(data, (int)(sizeof(data) / sizeof(data[0]))));

    // Set the labels on the x axis.
    c->xAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]))));

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

    //free up resources
    delete c;
    return 0;
}

The code is explained below:

Note: If you are running ChartDirector on Linux/FreeBSD/Solaris, the charts produced may be slightly different from the chart samples in this documentation, which are produced under Windows. This is because of the different fonts available on Windows and Linux/FreeBSD/Solaris. Please refer to Font Specification on why you may want to download Windows fonts to be used on Linux/FreeBSD/Solaris.

Note: The trial version of ChartDirector will include small yellow banners at the bottom of the charts it produces. These banners will disappear in the licensed version of ChartDirector.