int main(int argc, char *argv[])
{
// The data for the chart
double data[] = {40, 15, 7, 5, 2};
// The labels for the chart
const char *labels[] = {"Hard Disk", "PCB", "Printer", "CDROM", "Keyboard"};
// In the pareto chart, the line data are just the accumulation of the raw data,
// scaled to a range of 0 - 100%
ArrayMath lineData = ArrayMath(DoubleArray(data, sizeof(data)/sizeof(data[0])));
lineData.acc();
double scaleFactor = lineData.max() / 100;
if (scaleFactor == 0) {
// Avoid division by zero error for zero data
scaleFactor = 1;
}
lineData.div(scaleFactor);
// Create a XYChart object of size 480 x 300 pixels. Set background color to
// brushed silver, with a grey (bbbbbb) border and 2 pixel 3D raised effect. Use
// rounded corners. Enable soft drop shadow.
XYChart *c = new XYChart(400, 300, Chart::brushedSilverColor(), 0xbbbbbb, 2);
c->setRoundedFrame();
c->setDropShadow();
// Add a title to the chart using 15 points Arial Italic. Set top/bottom margins
// to 12 pixels.
TextBox *title = c->addTitle("Pareto Chart Demonstration", "ariali.ttf", 15);
title->setMargin(0, 0, 12, 12);
// Tentatively set the plotarea at (50, 40). Set the width to 100 pixels less
// than the chart width, and the height to 80 pixels less than the chart height.
// Use pale grey (f4f4f4) background, transparent border, and dark grey (444444)
// dotted grid lines.
c->setPlotArea(50, 40, c->getWidth() - 100, c->getHeight() - 80, 0xf4f4f4, -1,
Chart::Transparent, c->dashLineColor(0x444444, Chart::DotLine));
// Add a line layer for the pareto line
LineLayer *lineLayer = c->addLineLayer();
// Add the pareto line using deep blue (0000ff) as the color, with circle symbols
lineLayer->addDataSet(lineData.result(), 0x0000ff)->setDataSymbol(
Chart::CircleShape, 9, 0x0000ff, 0x0000ff);
// Set the line width to 2 pixel
lineLayer->setLineWidth(2);
// Bind the line layer to the secondary (right) y-axis.
lineLayer->setUseYAxis2();
// Add a multi-color bar layer using the given data.
BarLayer *barLayer = c->addBarLayer(DoubleArray(data,
sizeof(data)/sizeof(data[0])), IntArray(0, 0));
// Set soft lighting for the bars with light direction from the right
barLayer->setBorderColor(Chart::Transparent, Chart::softLighting(Chart::Right));
// Set the labels on the x axis.
c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));
// Set the secondary (right) y-axis scale as 0 - 100 with a tick every 20 units
c->yAxis2()->setLinearScale(0, 100, 20);
// Set the format of the secondary (right) y-axis label to include a percentage
// sign
c->yAxis2()->setLabelFormat("{value}%");
// Set the relationship between the two y-axes, which only differ by a scaling
// factor
c->yAxis()->syncAxis(c->yAxis2(), scaleFactor);
// Set the format of the primary y-axis label foramt to show no decimal point
c->yAxis()->setLabelFormat("{value|0}");
// Add a title to the primary y-axis
c->yAxis()->setTitle("Frequency");
// Set all axes to transparent
c->xAxis()->setColors(Chart::Transparent);
c->yAxis()->setColors(Chart::Transparent);
c->yAxis2()->setColors(Chart::Transparent);
// Adjust the plot area size, such that the bounding box (inclusive of axes) is
// 10 pixels from the left edge, just below the title, 10 pixels from the right
// edge, and 20 pixels from the bottom edge.
c->packPlotArea(10, title->getHeight(), c->getWidth() - 10, c->getHeight() - 20);
// Output the chart
c->makeChart("pareto.jpg");
//free up resources
delete c;
return 0;
}
int main(int argc, char *argv[])
{
// The data for the bar chart
double data0[] = {100, 115, 165, 107, 67};
double data1[] = {85, 106, 129, 161, 123};
double data2[] = {67, 87, 86, 167, 157};
// The labels for the bar chart
const char *labels[] = {"Mon", "Tue", "Wed", "Thu", "Fri"};
// Create a XYChart object of size 600 x 360 pixels
XYChart *c = new XYChart(600, 360);
// Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent background and
// border and light grey (0xcccccc) horizontal grid lines
c->setPlotArea(70, 20, 400, 300, Chart::Transparent, -1, Chart::Transparent, 0xcccccc);
// Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set background and
// border to transparent and key icon border to the same as the fill color.
LegendBox *b = c->addLegend(480, 20, true, "arial.ttf", 12);
b->setBackground(Chart::Transparent, Chart::Transparent);
b->setKeyBorder(Chart::SameAsMainColor);
// Set the x and y axis stems to transparent and the label font to 12pt Arial
c->xAxis()->setColors(Chart::Transparent);
c->yAxis()->setColors(Chart::Transparent);
c->xAxis()->setLabelStyle("arial.ttf", 12);
c->yAxis()->setLabelStyle("arial.ttf", 12);
// Add a stacked bar layer
BarLayer *layer = c->addBarLayer(Chart::Stack);
// Add the three data sets to the bar layer
layer->addDataSet(DoubleArray(data0, (int)(sizeof(data0) / sizeof(data0[0]))), 0xaaccee,
"Server # 1");
layer->addDataSet(DoubleArray(data1, (int)(sizeof(data1) / sizeof(data1[0]))), 0xbbdd88,
"Server # 2");
layer->addDataSet(DoubleArray(data2, (int)(sizeof(data2) / sizeof(data2[0]))), 0xeeaa66,
"Server # 3");
// Set the bar border to transparent
layer->setBorderColor(Chart::Transparent);
// Enable labelling for the entire bar and use 12pt Arial font
layer->setAggregateLabelStyle("arial.ttf", 12);
// Enable labelling for the bar segments and use 12pt Arial font with center alignment
layer->setDataLabelStyle("arial.ttf", 10)->setAlignment(Chart::Center);
// For a vertical stacked bar with positive data, the first data set is at the bottom. For the
// legend box, by default, the first entry at the top. We can reverse the legend order to make
// the legend box consistent with the stacked bar.
layer->setLegendOrder(Chart::ReverseLegend);
// Set the labels on the x axis.
c->xAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]))));
// For the automatic y-axis labels, set the minimum spacing to 40 pixels.
c->yAxis()->setTickDensity(40);
// Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
c->yAxis()->setTitle("Y-Axis Title Placeholder", "arialbd.ttf", 14, 0x555555);
// Output the chart
c->makeChart("stackedbar.png");
//free up resources
delete c;
return 0;
}
int main(int argc, char *argv[])
{
// The data for the bar chart
double data0[] = {100, 125, 245, 147, 67};
double data1[] = {85, 156, 179, 211, 123};
double data2[] = {97, 87, 56, 267, 157};
const char *labels[] = {"Mon", "Tue", "Wed", "Thur", "Fri"};
// Create a XYChart object of size 540 x 375 pixels
XYChart *c = new XYChart(540, 375);
// Add a title to the chart using 18pt Times Bold Italic font
c->addTitle("Average Weekly Network Load", "timesbi.ttf", 18);
// Set the plotarea at (50, 55) and of 440 x 280 pixels in size. Use a vertical gradient color
// from light red (ffdddd) to dark red (880000) as background. Set border and grid lines to
// white (ffffff).
c->setPlotArea(50, 55, 440, 280, c->linearGradientColor(0, 55, 0, 335, 0xffdddd, 0x880000), -1,
0xffffff, 0xffffff);
// Add a legend box at (50, 25) using horizontal layout. Use 10pt Arial Bold as font, with
// transparent background.
c->addLegend(50, 25, false, "arialbd.ttf", 10)->setBackground(Chart::Transparent);
// Set the x axis labels
c->xAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]))));
// Draw the ticks between label positions (instead of at label positions)
c->xAxis()->setTickOffset(0.5);
// Set axis label style to 8pt Arial Bold
c->xAxis()->setLabelStyle("arialbd.ttf", 8);
c->yAxis()->setLabelStyle("arialbd.ttf", 8);
// Set axis line width to 2 pixels
c->xAxis()->setWidth(2);
c->yAxis()->setWidth(2);
// Add axis title
c->yAxis()->setTitle("Throughput (MBytes Per Hour)");
// Add a multi-bar layer with 3 data sets and 4 pixels 3D depth
BarLayer *layer = c->addBarLayer(Chart::Side, 4);
layer->addDataSet(DoubleArray(data0, (int)(sizeof(data0) / sizeof(data0[0]))), 0xffff00,
"Server #1");
layer->addDataSet(DoubleArray(data1, (int)(sizeof(data1) / sizeof(data1[0]))), 0x00ff00,
"Server #2");
layer->addDataSet(DoubleArray(data2, (int)(sizeof(data2) / sizeof(data2[0]))), 0x9999ff,
"Server #3");
// Set bar border to transparent. Use soft lighting effect with light direction from top.
layer->setBorderColor(Chart::Transparent, Chart::softLighting(Chart::Top));
// Configure the bars within a group to touch each others (no gap)
layer->setBarGap(0.2, Chart::TouchBar);
// Output the chart
c->makeChart("softmultibar.png");
//free up resources
delete c;
return 0;
}