ChartDirector Ver 3.0 (C++ Edition)

Simple Bar Chart




This example demonstrates the following basic steps in creating a bar chart:

Source Code Listing

[The following project 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, sizeof(data)/sizeof(*data))); //Set the x axis labels using the given labels c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(*labels))); //output the chart c->makeChart("simplebar.png"); //free up resources delete c; return 0; }