int main(int argc, char *argv[])
{
// data for the gantt chart, representing the start date, end date and names for
// various activities
double startDate[] = {chartTime(2004, 8, 16), chartTime(2004, 8, 30), chartTime(
2004, 9, 13), chartTime(2004, 9, 20), chartTime(2004, 9, 27), chartTime(2004,
10, 4), chartTime(2004, 10, 25), chartTime(2004, 11, 1), chartTime(2004, 11,
8)};
double endDate[] = {chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(
2004, 9, 27), chartTime(2004, 10, 4), chartTime(2004, 10, 11), chartTime(
2004, 11, 8), chartTime(2004, 11, 8), chartTime(2004, 11, 22), chartTime(
2004, 11, 22)};
const char *labels[] = {"Market Research", "Define Specifications",
"Overall Archiecture", "Project Planning", "Detail Design",
"Software Development", "Test Plan", "Testing and QA", "User Documentation"};
// Create a XYChart object of size 620 x 280 pixels. Set background color to
// light blue (ccccff), with 1 pixel 3D border effect.
XYChart *c = new XYChart(620, 280, 0xccccff, 0x000000, 1);
// Add a title to the chart using 15 points Times Bold Itatic font, with white
// (ffffff) text on a deep blue (000080) background
c->addTitle("Simple Gantt Chart Demo", "timesbi.ttf", 15, 0xffffff
)->setBackground(0x000080);
// Set the plotarea at (140, 55) and of size 460 x 200 pixels. Use alternative
// white/grey background. Enable both horizontal and vertical grids by setting
// their colors to grey (c0c0c0). Set vertical major grid (represents month
// boundaries) 2 pixels in width
c->setPlotArea(140, 55, 460, 200, 0xffffff, 0xeeeeee, Chart::LineColor, 0xc0c0c0,
0xc0c0c0)->setGridWidth(2, 1, 1, 1);
// swap the x and y axes to create a horziontal box-whisker chart
c->swapXY();
// Set the y-axis scale to be date scale from Aug 16, 2004 to Nov 22, 2004, with
// ticks every 7 days (1 week)
c->yAxis()->setDateScale(chartTime(2004, 8, 16), chartTime(2004, 11, 22), 86400 *
7);
// Set multi-style axis label formatting. Month labels are in Arial Bold font in
// "mmm d" format. Weekly labels just show the day of month and use minor tick
// (by using '-' as first character of format string).
c->yAxis()->setMultiFormat(Chart::StartOfMonthFilter(),
"<*font=arialbd.ttf*>{value|mmm d}", Chart::StartOfDayFilter(), "-{value|d}")
;
// Set the y-axis to shown on the top (right + swapXY = top)
c->setYAxisOnRight();
// Set the labels on the x axis
c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));
// Reverse the x-axis scale so that it points downwards.
c->xAxis()->setReverse();
// Set the horizontal ticks and grid lines to be between the bars
c->xAxis()->setTickOffset(0.5);
// Add a green (33ff33) box-whisker layer showing the box only.
c->addBoxWhiskerLayer(DoubleArray(startDate,
sizeof(startDate)/sizeof(startDate[0])), DoubleArray(endDate,
sizeof(endDate)/sizeof(endDate[0])), DoubleArray(), DoubleArray(),
DoubleArray(), 0x00cc00, Chart::SameAsMainColor, Chart::SameAsMainColor);
// output the chart
c->makeChart("gantt.png");
//free up resources
delete c;
return 0;
}
//只是一个demo,有内存泄露的
QWidget * Widget::addLineWithErrorSymbols()
{
// The data with error information
double data[] = {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 errData[] = {5, 6, 5.1, 6.5, 6.6, 8, 5.4, 5.1, 4.6, 5.0, 5.2, 6.0, 4.9, 5.6, 4.8, 6.2,
7.4, 7.1, 6.0, 6.6, 7.1, 50.3, 5.5, 7.9, 6.1};
// The labels for the chart
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"};
// Create a XYChart object of size 600 x 300 pixels, with a light grey (eeeeee) background,
// black border, 1 pixel 3D border effect and rounded corners.
XYChart *c = new XYChart(600, 300, 0xeeeeee, 0x000000, 1);
c->setRoundedFrame(0xaafaaf);
// Set the plotarea at (55, 55) and of size 520 x 195 pixels, with white (ffffff) background.
// Set horizontal and vertical grid lines to grey (cccccc).
c->setPlotArea(55, 55, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);
// Add a title box to the chart using 15pt Times Bold Italic font. The title is in CDML and
// includes embedded images for highlight. The text is on a light grey (dddddd) background, with
// glass lighting effect.
c->addTitle(
"<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Molecular Temperature Control "
"<*img=star.png*><*img=star.png*><*/*>", "timesbi.ttf", 15)->setBackground(0xdddddd, 0,
Chart::glassEffect());//增加玻璃效果
// Add a title to the y axis
c->yAxis()->setTitle("Temperature");
// Add a title to the x axis using CMDL
c->xAxis()->setTitle("<*block,valign=absmiddle*><*img=clock.png*> Elapsed Time (hour)<*/*>");
// Set the labels on the x axis.
c->xAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]))));
// Display 1 out of 3 labels on the x-axis. Show minor ticks for remaining labels.
c->xAxis()->setLabelStep(3, 1);
// Set the axes width to 2 pixels
c->xAxis()->setWidth(2);
c->yAxis()->setWidth(2);
// Add a line layer to the chart
LineLayer *lineLayer = c->addLineLayer();
// Add a blue (0xff) data set to the line layer, with yellow (0xffff80) diamond symbols
lineLayer->addDataSet(DoubleArray(data, (int)(sizeof(data) / sizeof(data[0]))), 0x0000ff
)->setDataSymbol(Chart::DiamondSymbol, 12, 0xffff80);
// Set the line width to 2 pixels
lineLayer->setLineWidth(2);
// Add a box whisker layer to the chart. Use the upper and lower mark of the box whisker layer
// to act as error zones. The upper and lower marks are computed using the ArrayMath object.
BoxWhiskerLayer *errLayer = c->addBoxWhiskerLayer(DoubleArray(), DoubleArray(), ArrayMath(
DoubleArray(data, (int)(sizeof(data) / sizeof(data[0])))).add(DoubleArray(errData, (int)(
sizeof(errData) / sizeof(errData[0])))), ArrayMath(DoubleArray(data, (int)(sizeof(data) /
sizeof(data[0])))).sub(DoubleArray(errData, (int)(sizeof(errData) / sizeof(errData[0])))),
DoubleArray(data, (int)(sizeof(data) / sizeof(data[0]))), Chart::Transparent, 0xbb6633);
// Set the line width to 2 pixels
errLayer->setLineWidth(2);
// Set the error zone to occupy half the space between the symbols
errLayer->setDataGap(0.5);
// Add a custom CDML text at the bottom right of the plot area as the logo
c->addText(575, 247,
"<*block,valign=absmiddle*><*img=small_molecule.png*> <*block*>"
"<*font=timesbi.ttf,size=10,color=804040*>Molecular\nEngineering<*/*>")->setAlignment(
Chart::BottomRight);
// Output the chart
c->makeChart("errline.png");
QWidget * _w= new QWidget();
QChartViewer * _v = new QChartViewer(_w);
_v->setChart(c);
//free up resources
//delete c;
return _w;
}