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, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67,
58, 59, 73, 77, 84, 82, 80, 84, 98};
double data2[] = {87, 89, 85, 66, 53, 39, 24, 21, 37, 56, 37, 23, 21, 33, 13, 17,
14, 23, 16, 25, 29, 30, 45, 47, 46};
// The timestamps on the x-axis
double labels[] = {chartTime(1996, 1, 1), chartTime(1996, 4, 1), chartTime(1996,
7, 1), chartTime(1996, 10, 1), chartTime(1997, 1, 1), chartTime(1997, 4, 1),
chartTime(1997, 7, 1), chartTime(1997, 10, 1), chartTime(1998, 1, 1),
chartTime(1998, 4, 1), chartTime(1998, 7, 1), chartTime(1998, 10, 1),
chartTime(1999, 1, 1), chartTime(1999, 4, 1), chartTime(1999, 7, 1),
chartTime(1999, 10, 1), chartTime(2000, 1, 1), chartTime(2000, 4, 1),
chartTime(2000, 7, 1), chartTime(2000, 10, 1), chartTime(2001, 1, 1),
chartTime(2001, 4, 1), chartTime(2001, 7, 1), chartTime(2001, 10, 1),
chartTime(2002, 1, 1)};
// Create a XYChart object of size 500 x 280 pixels, using 0xffffcc as background
// color, with a black border, and 1 pixel 3D border effect
XYChart *c = new XYChart(500, 280, 0xffffcc, 0, 1);
// Set the plotarea at (50, 45) and of size 320 x 200 pixels with white
// background. Enable horizontal and vertical grid lines using the grey
// (0xc0c0c0) color.
c->setPlotArea(50, 45, 320, 200, 0xffffff)->setGridColor(0xc0c0c0, 0xc0c0c0);
// Add a legend box at (370, 45) using vertical layout and 8 points Arial Bold
// font.
LegendBox *legendBox = c->addLegend(370, 45, true, "arialbd.ttf", 8);
// Set the legend box background and border to transparent
legendBox->setBackground(Chart::Transparent, Chart::Transparent);
// Set the legend box icon size to 16 x 32 pixels to match with custom icon size
legendBox->setKeySize(16, 32);
// Add a title to the chart using 14 points Times Bold Itatic font and white font
// color, and 0x804020 as the background color
c->addTitle("Quarterly Product Sales", "timesbi.ttf", 14, 0xffffff
)->setBackground(0x804020);
// Set the labels on the x axis.
c->xAxis()->setLabels(DoubleArray(labels, sizeof(labels)/sizeof(labels[0])));
// Set multi-style axis label formatting. Start of year labels are displayed as
// yyyy. For other labels, just show minor tick.
c->xAxis()->setMultiFormat(Chart::StartOfYearFilter(), "{value|yyyy}",
Chart::AllPassFilter(), "-");
// Add a percentage area layer to the chart
AreaLayer *layer = c->addAreaLayer(Chart::Percentage);
// Add the three data sets to the area layer, using icons images with labels as
// data set names
layer->addDataSet(DoubleArray(data0, sizeof(data0)/sizeof(data0[0])), 0x40ddaa77,
"<*block,valign=absmiddle*><*img=service.png*> Service<*/*>");
layer->addDataSet(DoubleArray(data1, sizeof(data1)/sizeof(data1[0])), 0x40aadd77,
"<*block,valign=absmiddle*><*img=software.png*> Software<*/*>");
layer->addDataSet(DoubleArray(data2, sizeof(data2)/sizeof(data2[0])), 0x40aa77dd,
"<*block,valign=absmiddle*><*img=computer.png*> Hardware<*/*>");
// For a vertical stacked chart with positive data only, the last data set is
// always on top. However, in a vertical legend box, the last data set is at the
// bottom. This can be reversed by using the setLegend method.
layer->setLegend(Chart::ReverseLegend);
// Output the chart
c->makeChart("percentarea.png");
//free up resources
delete c;
return 0;
}
int main(int argc, char *argv[])
{
// The x and y coordinates of the grid
double dataX[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
double dataY[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
// Use random numbers for the z values on the XY grid
RanSeries *r = new RanSeries(999);
DoubleArray dataZ = r->get2DSeries((int)(sizeof(dataX) / sizeof(dataX[0])), (int)(sizeof(dataY)
/ sizeof(dataY[0])), -0.9, 1.15);
// Create a XYChart object of size 640 x 460 pixels
XYChart *c = new XYChart(640, 460);
// Set the plotarea at (30, 25) and of size 400 x 400 pixels. Use semi-transparent grey
// (0xdd000000) horizontal and vertical grid lines
c->setPlotArea(50, 25, 400, 400, -1, -1, Chart::Transparent, 0xdd000000, -1);
// 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);
// Set the x-axis and y-axis scale
c->xAxis()->setLinearScale(0, 10, 1);
c->yAxis()->setLinearScale(0, 10, 1);
// Add a contour layer using the given data
ContourLayer *layer = c->addContourLayer(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0
]))), DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0]))), dataZ);
// Move the grid lines in front of the contour layer
c->getPlotArea()->moveGridBefore(layer);
// Define the color scale
double colorScale[] = {-0.8, 0x0066ff, -0.5, 0x66ccff, -0.3, 0x66ffff, 0, 0x88ff88, 0.4,
0x00ff00, 0.7, 0xffff00, 0.9, 0xff6600, 1.0, 0xcc0000, 1.1};
// Apply the color scale, and specify the underflow and overflow colors for regions exceeding
// the color scale
layer->colorAxis()->setColorScale(DoubleArray(colorScale, (int)(sizeof(colorScale) / sizeof(
colorScale[0]))), 0x0000cc, 0x000000);
//
// Instead of displaying the color axis, we use a legend box to display the colors. This is
// useful for colors that are unevenly spaced on the color axis.
//
// Add a legend box at (460, 25) with vertical layout, with 12pt Arial font, transparent
// background and border, icon size of 15 x 15 pixels, and line spacing of 8 pixels.
LegendBox *b = c->addLegend(460, 25, true, "arial.ttf", 12);
b->setBackground(Chart::Transparent, Chart::Transparent);
b->setKeySize(15, 15);
b->setKeySpacing(0, 8);
// Add the legend box entries
b->addKey("> 1.1 (Critical)", 0x000000);
b->addKey("1.0 to 1.1 (Alert)", 0xcc0000);
b->addKey("0.9 to 1.0", 0xff6600);
b->addKey("0.7 to 0.9", 0xffff00);
b->addKey("0.4 to 0.7", 0x00ff00);
b->addKey("0.0 to 0.4", 0x88ff88);
b->addKey("-0.3 to 0.0", 0x66ffff);
b->addKey("-0.5 to -0.3", 0x66ccff);
b->addKey("-0.8 to -0.5", 0x0066ff);
b->addKey("< -0.8", 0x0000cc);
// Output the chart
c->makeChart("contourlegend.png");
//free up resources
delete r;
delete c;
return 0;
}
