ChartDirector 7.1 (C++ Edition)

Cone Chart




This example demonstrates using PyramidChart.setConeSize to specify using a cone instead of a pyramid to represent the data.

Source Code Listing

The following is the command line version of the code in "cppdemo/cone". 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 pyramid chart double data[] = {156, 123, 211, 179}; const int data_size = (int)(sizeof(data)/sizeof(*data)); // The labels for the pyramid chart const char* labels[] = {"Funds", "Bonds", "Stocks", "Cash"}; const int labels_size = (int)(sizeof(labels)/sizeof(*labels)); // The semi-transparent colors for the pyramid layers int colors[] = {0x60000088, 0x6066aaee, 0x60ffbb00, 0x60ee6622}; const int colors_size = (int)(sizeof(colors)/sizeof(*colors)); // Create a PyramidChart object of size 480 x 400 pixels PyramidChart* c = new PyramidChart(480, 400); // Set the cone center at (280, 180), and width x height to 150 x 300 pixels c->setConeSize(280, 180, 150, 300); // Set the elevation to 15 degrees c->setViewAngle(15); // Set the pyramid data and labels c->setData(DoubleArray(data, data_size), StringArray(labels, labels_size)); // Set the layer colors to the given colors c->setColors(Chart::DataColor, IntArray(colors, colors_size)); // Leave 1% gaps between layers c->setLayerGap(0.01); // Add labels at the left side of the pyramid layers using Arial Bold font. The labels will have // 3 lines showing the layer name, value and percentage. c->setLeftLabel("{label}\nUS ${value}K\n({percent}%)", "Arial Bold"); // Output the chart c->makeChart("cone.png"); //free up resources delete c; return 0; }