ChartDirector 7.1 (C++ Edition)

3D Stacked Area Chart




This example demonstrates creating a stacked area chart with 3D effects.

The key features demonstrated in this example are:

Source Code Listing

The following is the command line version of the code in "cppdemo/threedstackarea". 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 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}; const int data0_size = (int)(sizeof(data0)/sizeof(*data0)); 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}; const int data1_size = (int)(sizeof(data1)/sizeof(*data1)); 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 int data2_size = (int)(sizeof(data2)/sizeof(*data2)); const char* labels[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"}; const int labels_size = (int)(sizeof(labels)/sizeof(*labels)); // 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, labels_size)); // Display 1 out of 2 labels on the x-axis. Show minor ticks for remaining labels. c->xAxis()->setLabelStep(2, 1); // 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, data0_size), -1, "Server # 1"); layer->addDataSet(DoubleArray(data1, data1_size), -1, "Server # 2"); layer->addDataSet(DoubleArray(data2, data2_size), -1, "Server # 3"); // Output the chart c->makeChart("threedstackarea.png"); //free up resources delete c; return 0; }