
This example demonstrates creating a multi-color horizontal box-whisker chart.
XYChart.addBoxWhiskerLayer2 is used to create the multi-color box-whisker layer. The chart is set to horizontal orientation using XYChart.swapXY.
ChartDirector Ver 4.1 (C++ Edition)
Horizontal Box-Whisker Chart
Source Code Listing
#include "chartdir.h" int main(int argc, char *argv[]) { // Sample data for the Box-Whisker chart. Represents the minimum, 1st quartile, // medium, 3rd quartile and maximum values of some quantities double Q0Data[] = {40, 45, 35}; double Q1Data[] = {55, 60, 50}; double Q2Data[] = {62, 70, 60}; double Q3Data[] = {70, 80, 65}; double Q4Data[] = {80, 90, 75}; // The labels for the chart const char *labels[] = {"<*img=robot1.png*><*br*>Bipedal Type", "<*img=robot2.png*><*br*>Wolf Type", "<*img=robot5.png*><*br*>Bird Type"}; // Create a XYChart object of size 540 x 320 pixels XYChart *c = new XYChart(540, 320); // swap the x and y axes to create a horizontal box-whisker chart c->swapXY(); // Set the plotarea at (75, 25) and of size 440 x 270 pixels. Enable both // horizontal and vertical grids by setting their colors to grey (0xc0c0c0) c->setPlotArea(75, 25, 440, 270)->setGridColor(0xc0c0c0, 0xc0c0c0); // Add a title to the chart c->addTitle(" Robot Shooting Accuracy Scores"); // Set the labels on the x axis and the font to Arial Bold c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])) )->setFontStyle("arialbd.ttf"); // Disable x axis ticks by setting the length to 0 c->xAxis()->setTickLength(0); // Set the font for the y axis labels to Arial Bold c->yAxis()->setLabelStyle("arialbd.ttf"); // Add a Box Whisker layer using light blue 0x9999ff as the fill color and blue // (0xcc) as the line color. Set the line width to 2 pixels c->addBoxWhiskerLayer2(DoubleArray(Q3Data, sizeof(Q3Data)/sizeof(Q3Data[0])), DoubleArray(Q1Data, sizeof(Q1Data)/sizeof(Q1Data[0])), DoubleArray(Q4Data, sizeof(Q4Data)/sizeof(Q4Data[0])), DoubleArray(Q0Data, sizeof(Q0Data)/sizeof(Q0Data[0])), DoubleArray(Q2Data, sizeof(Q2Data)/sizeof(Q2Data[0])))->setLineWidth(2); // output the chart c->makeChart("boxwhisker2.png"); //free up resources delete c; return 0; } |