ChartDirector Ver 3.0 (C++ Edition)

3D Stacked Area Chart




This example creating a stacked area chart with 3D effects. The followings are key features of this example:

Source Code Listing

[The following project is available in "cppdemo/threedstackarea".]
#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}; double data1[] = {50, 45, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77, 84, 82, 80, 84, 89}; double data2[] = {61, 79, 85, 66, 53, 39, 24, 21, 37, 56, 37, 22, 21, 33, 13, 17, 4, 23, 16, 25, 9, 10, 5, 7, 16}; const char *labels[] = {"0", "-", "2", "-", "4", "-", "6", "-", "8", "-", "10", "-", "12", "-", "14", "-", "16", "-", "18", "-", "20", "-", "22", "-", "24"}; //Create a XYChart object of size 500 x 300 pixels XYChart *c = new XYChart(500, 300); //Set the plotarea at (90, 30) and of size 300 x 240 pixels. c->setPlotArea(90, 30, 300, 240); //Add a legend box at (405, 100) c->addLegend(405, 100); //Add a title to the chart c->addTitle("Daily System Load"); //Add a title to the y axis. Draw the title upright (font angle = 0) c->yAxis()->setTitle("Database\nQueries\n(per sec)")->setFontAngle(0); //Set the labels on the x axis c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(*labels))); //Add an area layer AreaLayer *layer = c->addAreaLayer(); //Draw the area layer in 3D layer->set3D(); //Add the three data sets to the area layer layer->addDataSet(DoubleArray(data0, sizeof(data0)/sizeof(*data0)), -1, "Server # 1"); layer->addDataSet(DoubleArray(data1, sizeof(data1)/sizeof(*data1)), -1, "Server # 2"); layer->addDataSet(DoubleArray(data2, sizeof(data2)/sizeof(*data2)), -1, "Server # 3"); //output the chart c->makeChart("threedstackarea.png"); //free up resources delete c; return 0; }