int main(int argc, char *argv[])
{
    // The data for the bar chart
    double data[] = {450, 560, 630, 800, 1100, 1350, 1600, 1950, 2300, 2700};

    // The labels for the bar chart
    const char *labels[] = {"1996", "1997", "1998", "1999", "2000", "2001", "2002",
        "2003", "2004", "2005"};

    // Create a XYChart object of size 600 x 380 pixels. Set background color to
    // brushed silver, with a 2 pixel 3D border. Use rounded corners of 20 pixels
    // radius.
    XYChart *c = new XYChart(600, 380, Chart::brushedSilverColor(),
        Chart::Transparent, 2);

    // Add a title to the chart using 18pts Times Bold Italic font. Set top/bottom
    // margins to 8 pixels.
    c->addTitle("Annual Revenue for Star Tech", "timesbi.ttf", 18)->setMargin(0, 0,
        8, 8);

    // Set the plotarea at (70, 55) and of size 460 x 280 pixels. Use transparent
    // border and black grid lines. Use rounded frame with radius of 20 pixels.
    c->setPlotArea(70, 55, 460, 280, -1, -1, Chart::Transparent, 0x000000);
    c->setRoundedFrame(0xffffff, 20);

    // Add a multi-color bar chart layer using the supplied data. Set cylinder bar
    // shape.
    c->addBarLayer(DoubleArray(data, sizeof(data)/sizeof(data[0])), IntArray(0, 0)
        )->setBarShape(Chart::CircleShape);

    // Set the labels on the x axis.
    c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));

    // Show the same scale on the left and right y-axes
    c->syncYAxis();

    // Set the left y-axis and right y-axis title using 10pt Arial Bold font
    c->yAxis()->setTitle("USD (millions)", "arialbd.ttf", 10);
    c->yAxis2()->setTitle("USD (millions)", "arialbd.ttf", 10);

    // Set y-axes to transparent
    c->yAxis()->setColors(Chart::Transparent);
    c->yAxis2()->setColors(Chart::Transparent);

    // Disable ticks on the x-axis by setting the tick color to transparent
    c->xAxis()->setTickColor(Chart::Transparent);

    // Set the label styles of all axes to 8pt Arial Bold font
    c->xAxis()->setLabelStyle("arialbd.ttf", 8);
    c->yAxis()->setLabelStyle("arialbd.ttf", 8);
    c->yAxis2()->setLabelStyle("arialbd.ttf", 8);

    // Output the chart
    c->makeChart("cylinderlightbar.jpg");

    //free up resources
    delete c;
    return 0;
}
Ejemplo n.º 2
0
int main(int argc, char *argv[])
{
    // In this example, the data points are unevenly spaced on the x-axis
    double dataY[] = {4.7, 4.7, 6.6, 2.2, 4.7, 4.0, 4.0, 5.1, 4.5, 4.5, 6.8, 4.5, 4,
        2.1, 3, 2.5, 2.5, 3.1};
    double dataX[] = {chartTime(1999, 7, 1), chartTime(2000, 1, 1), chartTime(2000,
        2, 1), chartTime(2000, 4, 1), chartTime(2000, 5, 8), chartTime(2000, 7, 5),
        chartTime(2001, 3, 5), chartTime(2001, 4, 7), chartTime(2001, 5, 9),
        chartTime(2002, 2, 4), chartTime(2002, 4, 4), chartTime(2002, 5, 8),
        chartTime(2002, 7, 7), chartTime(2002, 8, 30), chartTime(2003, 1, 2),
        chartTime(2003, 2, 16), chartTime(2003, 11, 6), chartTime(2004, 1, 4)};

    // Data points are assigned different symbols based on point type
    double pointType[] = {0, 1, 0, 1, 2, 1, 0, 0, 1, 1, 2, 2, 1, 0, 2, 1, 2, 0};

    // Create a XYChart object of size 600 x 300 pixels, with a light purple (ffccff)
    // background, black border, 1 pixel 3D border effect and rounded corners.
    XYChart *c = new XYChart(600, 300, 0xffccff, 0x000000, 1);
    c->setRoundedFrame();

    // Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white (ffffff)
    // background. Set horizontal and vertical grid lines to grey (cccccc).
    c->setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

    // Add a legend box at (55, 30) (top of the chart) with horizontal layout. Use 10
    // pts Arial Bold Italic font. Set the background and border color to
    // Transparent.
    c->addLegend(55, 30, false, "arialbi.ttf", 10)->setBackground(Chart::Transparent)
        ;

    // Add a title box to the chart using 15 pts Times Bold Italic font. The text is
    // white (ffffff) on a purple (400040) background, with soft lighting effect from
    // the right side.
    c->addTitle("Multi-Symbol Line Chart Demo", "timesbi.ttf", 15, 0xffffff
        )->setBackground(0x400040, -1, Chart::softLighting(Chart::Right));

    // Set the y axis label format to display a percentage sign
    c->yAxis()->setLabelFormat("{value}%");

    // Set axis titles to use 9pt Arial Bold Italic font
    c->yAxis()->setTitle("Axis Title Placeholder", "arialbi.ttf", 9);
    c->xAxis()->setTitle("Axis Title Placeholder", "arialbi.ttf", 9);

    // Set axis labels to use Arial Bold font
    c->yAxis()->setLabelStyle("arialbd.ttf");
    c->xAxis()->setLabelStyle("arialbd.ttf");

    // We add the different data symbols using scatter layers. The scatter layers are
    // added before the line layer to make sure the data symbols stay on top of the
    // line layer.

    // We select the points with pointType = 0 (the non-selected points will be set
    // to NoValue), and use yellow (ffff00) 15 pixels high 5 pointed star shape
    // symbols for the points. (This example uses both x and y coordinates. For
    // charts that have no x explicitly coordinates, use an empty array as dataX.)
    c->addScatterLayer(DoubleArray(dataX, sizeof(dataX)/sizeof(dataX[0])), ArrayMath(
        DoubleArray(dataY, sizeof(dataY)/sizeof(dataY[0]))).selectEQZ(DoubleArray(
        pointType, sizeof(pointType)/sizeof(pointType[0])), Chart::NoValue),
        "Point Type 0", Chart::StarShape(5), 15, 0xffff00);

    // Similar to above, we select the points with pointType - 1 = 0 and use green
    // (ff00) 13 pixels high six-sided polygon as symbols.
    c->addScatterLayer(DoubleArray(dataX, sizeof(dataX)/sizeof(dataX[0])), ArrayMath(
        DoubleArray(dataY, sizeof(dataY)/sizeof(dataY[0]))).selectEQZ(ArrayMath(
        DoubleArray(pointType, sizeof(pointType)/sizeof(pointType[0]))).sub(1),
        Chart::NoValue), "Point Type 1", Chart::PolygonShape(6), 13, 0x00ff00);

    // Similar to above, we select the points with pointType - 2 = 0 and use red
    // (ff0000) 13 pixels high X shape as symbols.
    c->addScatterLayer(DoubleArray(dataX, sizeof(dataX)/sizeof(dataX[0])), ArrayMath(
        DoubleArray(dataY, sizeof(dataY)/sizeof(dataY[0]))).selectEQZ(ArrayMath(
        DoubleArray(pointType, sizeof(pointType)/sizeof(pointType[0]))).sub(2),
        Chart::NoValue), "Point Type 2", Chart::Cross2Shape(), 13, 0xff0000);

    // Finally, add a blue (0000ff) line layer with line width of 2 pixels
    LineLayer *layer = c->addLineLayer(DoubleArray(dataY,
        sizeof(dataY)/sizeof(dataY[0])), 0x0000ff);
    layer->setXData(DoubleArray(dataX, sizeof(dataX)/sizeof(dataX[0])));
    layer->setLineWidth(2);

    // output the chart
    c->makeChart("multisymbolline.png");

    //free up resources
    delete c;
    return 0;
}
int main(int argc, char *argv[])
{
    // The data for the area chart
    double data[] = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55,
        53, 35, 50, 66, 56, 48, 52, 65, 62};

    // The labels for the area 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 360 pixels, with a brushed silver
    // background, 1 pixel 3D border effect, rounded corners and soft drop shadow.
    XYChart *c = new XYChart(600, 360, Chart::brushedSilverColor(),
        Chart::Transparent, 1);
    c->setRoundedFrame();
    c->setDropShadow();

    // Add a title box to the chart using 18 pts Times Bold Italic font.
    TextBox *title = c->addTitle(
        "<*block,valign=absmiddle*><*img=star.png*><*img=star.png*> Performance "
        "Enhancer <*img=star.png*><*img=star.png*><*/*>", "timesbi.ttf", 18);

    //
    // Use a text box with a depressed 3D border to create the inner depressed region
    //

    // The width of the frame border
    int frameWidth = 5;

    // Set the depressed region position
    TextBox *contentBox = c->addText(frameWidth, title->getHeight(), "");
    contentBox->setSize(c->getDrawArea()->getWidth() - 1 - frameWidth * 2,
        c->getDrawArea()->getHeight() - title->getHeight() - frameWidth - 1);

    // Use -1 as the rasied effect to create a depressed region
    contentBox->setBackground(Chart::Transparent, Chart::Transparent, -1);

    // Set rounded corners, and put the text box at the back of the chart
    contentBox->setRoundedCorners(10);
    contentBox->setZOrder(Chart::ChartBackZ);

    // Tentatively set the plotarea to 50 pixels from the left depressed edge, and 25
    // pixels under the top depressed edge. Set the width to 75 pixels less than the
    // depressed region width, and the height to 75 pixels less than the depressed
    // region height. Use white (ffffff) background, transparent border, and grey
    // (cccccc) horizontal and vertical grid lines.
    PlotArea *plotArea = c->setPlotArea(50 + contentBox->getLeftX(),
        contentBox->getTopY() + 25, contentBox->getWidth() - 75,
        contentBox->getHeight() - 75, 0xffffff, -1, -1, 0xcccccc, -1);

    // Add a title to the y axis
    c->yAxis()->setTitle("Energy Concentration (KJ per liter)");

    // Set the labels on the x axis.
    c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));

    // Display 1 out of 3 labels on the x-axis.
    c->xAxis()->setLabelStep(3);

    // Add a title to the x axis using CDML
    c->xAxis()->setTitle(
        "<*block,valign=absmiddle*><*img=clock.png*>  Elapsed Time (hour)<*/*>");

    // Set the axes width to 2 pixels
    c->xAxis()->setWidth(2);
    c->yAxis()->setWidth(2);

    // Add an area layer to the chart using a gradient color that changes vertically
    // from semi-transparent red (60ff0000) to semi-transparent white (60ffffff)
    c->addAreaLayer(DoubleArray(data, sizeof(data)/sizeof(data[0])),
        c->linearGradientColor(0, contentBox->getTopY() + 20, 0, contentBox->getTopY(
        ) + contentBox->getHeight() - 50, 0x60ff0000, 0x60ffffff));

    // Adjust the plot area size, such that the bounding box (inclusive of axes) is
    // 15 pixels from the left depressed edge, 25 pixels below the top depressed
    // edge, 25 pixels from the right depressed edge, and 15 pixels above the bottom
    // depressed edge.
    c->packPlotArea(contentBox->getLeftX() + 15, contentBox->getTopY() + 25,
        contentBox->getLeftX() + contentBox->getWidth() - 25, contentBox->getTopY() +
        contentBox->getHeight() - 15);

    // Add a custom CDML text with the bottom right corner is anchored to the bootom
    // right corner of the plot area, with 5 pixels margin.
    c->addText(plotArea->getLeftX() + plotArea->getWidth() - 5, plotArea->getTopY() +
        plotArea->getHeight() - 5,
        "<*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("enhancedarea.jpg");

    //free up resources
    delete c;
    return 0;
}
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;
}
Ejemplo n.º 5
0
int main(int argc, char *argv[])
{
    // In this example, the data points are unevenly spaced on the x-axis
    double dataY[] = {4.7, 4.7, 6.6, 2.2, 4.7, 4.0, 4.0, 5.1, 4.5, 4.5, 6.8, 4.5, 4, 2.1, 3, 2.5,
        2.5, 3.1};
    double dataX[] = {Chart::chartTime(1999, 7, 1), Chart::chartTime(2000, 1, 1), Chart::chartTime(
        2000, 2, 1), Chart::chartTime(2000, 4, 1), Chart::chartTime(2000, 5, 8), Chart::chartTime(
        2000, 7, 5), Chart::chartTime(2001, 3, 5), Chart::chartTime(2001, 4, 7), Chart::chartTime(
        2001, 5, 9), Chart::chartTime(2002, 2, 4), Chart::chartTime(2002, 4, 4), Chart::chartTime(
        2002, 5, 8), Chart::chartTime(2002, 7, 7), Chart::chartTime(2002, 8, 30), Chart::chartTime(
        2003, 1, 2), Chart::chartTime(2003, 2, 16), Chart::chartTime(2003, 11, 6), Chart::chartTime(
        2004, 1, 4)};

    // Data points are assigned different symbols based on point type
    double pointType[] = {0, 1, 0, 1, 2, 1, 0, 0, 1, 1, 2, 2, 1, 0, 2, 1, 2, 0};

    // Create a XYChart object of size 480 x 320 pixels. Use a vertical gradient color from pale
    // blue (e8f0f8) to sky blue (aaccff) spanning half the chart height as background. Set border
    // to blue (88aaee). Use rounded corners. Enable soft drop shadow.
    XYChart *c = new XYChart(480, 320);
    c->setBackground(c->linearGradientColor(0, 0, 0, c->getHeight() / 2, 0xe8f0f8, 0xaaccff),
        0x88aaee);
    c->setRoundedFrame();
    c->setDropShadow();

    // Add a title to the chart using 15 points Arial Italic font. Set top/bottom margins to 12
    // pixels.
    TextBox *title = c->addTitle("Multi-Symbol Line Chart Demo", "ariali.ttf", 15);
    title->setMargin(0, 0, 12, 12);

    // Tentatively set the plotarea to 50 pixels from the left edge to allow for the y-axis, and to
    // just under the title. Set the width to 65 pixels less than the chart width, and the height to
    // reserve 90 pixels at the bottom for the x-axis and the legend box. Use pale blue (e8f0f8)
    // background, transparent border, and grey (888888) dotted horizontal and vertical grid lines.
    c->setPlotArea(50, title->getHeight(), c->getWidth() - 65, c->getHeight() - title->getHeight() -
        90, 0xe8f0f8, -1, Chart::Transparent, c->dashLineColor(0x888888, Chart::DotLine), -1);

    // Add a legend box where the bottom-center is anchored to the 12 pixels above the bottom-center
    // of the chart. Use horizontal layout and 8 points Arial font.
    LegendBox *legendBox = c->addLegend(c->getWidth() / 2, c->getHeight() - 12, false,
        "arialbd.ttf", 8);
    legendBox->setAlignment(Chart::BottomCenter);

    // Set the legend box background and border to pale blue (e8f0f8) and bluish grey (445566)
    legendBox->setBackground(0xe8f0f8, 0x445566);

    // Use rounded corners of 5 pixel radius for the legend box
    legendBox->setRoundedCorners(5);

    // Set the y axis label format to display a percentage sign
    c->yAxis()->setLabelFormat("{value}%");

    // Set y-axis title to use 10 points Arial Bold Italic font
    c->yAxis()->setTitle("Axis Title Placeholder", "arialbi.ttf", 10);

    // Set axis labels to use Arial Bold font
    c->yAxis()->setLabelStyle("arialbd.ttf");
    c->xAxis()->setLabelStyle("arialbd.ttf");

    // We add the different data symbols using scatter layers. The scatter layers are added before
    // the line layer to make sure the data symbols stay on top of the line layer.

    // We select the points with pointType = 0 (the non-selected points will be set to NoValue), and
    // use yellow (ffff00) 15 pixels high 5 pointed star shape symbols for the points. (This example
    // uses both x and y coordinates. For charts that have no x explicitly coordinates, use an empty
    // array as dataX.)
    c->addScatterLayer(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))), ArrayMath(
        DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0])))).selectEQZ(DoubleArray(
        pointType, (int)(sizeof(pointType) / sizeof(pointType[0]))), Chart::NoValue),
        "Point Type 0", Chart::StarShape(5), 15, 0xffff00);

    // Similar to above, we select the points with pointType - 1 = 0 and use green (ff00) 13 pixels
    // high six-sided polygon as symbols.
    c->addScatterLayer(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))), ArrayMath(
        DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0])))).selectEQZ(ArrayMath(
        DoubleArray(pointType, (int)(sizeof(pointType) / sizeof(pointType[0])))).sub(1),
        Chart::NoValue), "Point Type 1", Chart::PolygonShape(6), 13, 0x00ff00);

    // Similar to above, we select the points with pointType - 2 = 0 and use red (ff0000) 13 pixels
    // high X shape as symbols.
    c->addScatterLayer(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))), ArrayMath(
        DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0])))).selectEQZ(ArrayMath(
        DoubleArray(pointType, (int)(sizeof(pointType) / sizeof(pointType[0])))).sub(2),
        Chart::NoValue), "Point Type 2", Chart::Cross2Shape(), 13, 0xff0000);

    // Finally, add a blue (0000ff) line layer with line width of 2 pixels
    LineLayer *layer = c->addLineLayer(DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0]))),
        0x0000ff);
    layer->setXData(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))));
    layer->setLineWidth(2);

    // Adjust the plot area size, such that the bounding box (inclusive of axes) is 10 pixels from
    // the left edge, just below the title, 25 pixels from the right edge, and 8 pixels above the
    // legend box.
    c->packPlotArea(10, title->getHeight(), c->getWidth() - 25, c->layoutLegend()->getTopY() - 8);

    // Output the chart
    c->makeChart("multisymbolline.png");

    //free up resources
    delete c;
    return 0;
}
Ejemplo n.º 6
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;

}
int main(int argc, char *argv[])
{
    // The data for the chart
    double data0[] = {42, 49, Chart::NoValue, 38, 64, 56, 29, 41, 44, 57};
    double data1[] = {65, 75, 47, 34, 42, 49, 73, Chart::NoValue, 90, 69, 66, 78};
    double data2[] = {Chart::NoValue, Chart::NoValue, 25, 28, 38, 20, 22,
        Chart::NoValue, 25, 33, 30, 24};
    const char *labels[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug",
        "Sep", "Oct", "Nov", "Dec"};

    // Create a XYChart object of size 600 x 360 pixels. Set background color to
    // brushed silver, with a 2 pixel 3D border. Use rounded corners.
    XYChart *c = new XYChart(600, 360, Chart::brushedSilverColor(),
        Chart::Transparent, 2);
    c->setRoundedFrame();

    // Add a title using 18 pts Times New Roman Bold Italic font. #Set top/bottom
    // margins to 6 pixels.
    TextBox *title = c->addTitle("Product Line Global Revenue", "timesbi.ttf", 18);
    title->setMargin(0, 0, 6, 6);

    // Add a separator line just under the title
    c->addLine(10, title->getHeight(), c->getWidth() - 11, title->getHeight(),
        Chart::LineColor);

    // Add a legend box where the top-center is anchored to the horizontal center of
    // the chart, just under the title. Use horizontal layout and 10 points Arial
    // Bold font, and transparent background and border.
    LegendBox *legendBox = c->addLegend(c->getWidth() / 2, title->getHeight(), false,
        "arialbd.ttf", 10);
    legendBox->setAlignment(Chart::TopCenter);
    legendBox->setBackground(Chart::Transparent, Chart::Transparent);

    // Tentatively set the plotarea at (70, 75) and of 460 x 240 pixels in size. Use
    // transparent border and black (000000) grid lines
    c->setPlotArea(70, 75, 460, 240, -1, -1, Chart::Transparent, 0x000000, -1);

    // Set the x axis labels
    c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));

    // Show the same scale on the left and right y-axes
    c->syncYAxis();

    // Set y-axis tick density to 30 pixels. ChartDirector auto-scaling will use this
    // as the guideline when putting ticks on the y-axis.
    c->yAxis()->setTickDensity(30);

    // Set all axes to transparent
    c->xAxis()->setColors(Chart::Transparent);
    c->yAxis()->setColors(Chart::Transparent);
    c->yAxis2()->setColors(Chart::Transparent);

    // Set the x-axis margins to 15 pixels, so that the horizontal grid lines can
    // extend beyond the leftmost and rightmost vertical grid lines
    c->xAxis()->setMargin(15, 15);

    // Set axis label style to 8pts Arial Bold
    c->xAxis()->setLabelStyle("arialbd.ttf", 8);
    c->yAxis()->setLabelStyle("arialbd.ttf", 8);
    c->yAxis2()->setLabelStyle("arialbd.ttf", 8);

    // Add axis title using 10pts Arial Bold Italic font
    c->yAxis()->setTitle("Revenue in USD millions", "arialbi.ttf", 10);
    c->yAxis2()->setTitle("Revenue in USD millions", "arialbi.ttf", 10);

    // Add the first line. The missing data will be represented as gaps in the line
    // (the default behaviour)
    LineLayer *layer0 = c->addLineLayer();
    layer0->addDataSet(DoubleArray(data0, sizeof(data0)/sizeof(data0[0])), 0xff0000,
        "Quantum Computer")->setDataSymbol(Chart::GlassSphere2Shape, 11);
    layer0->setLineWidth(3);

    // Add the second line. The missing data will be represented by using dash lines
    // to bridge the gap
    LineLayer *layer1 = c->addLineLayer();
    layer1->addDataSet(DoubleArray(data1, sizeof(data1)/sizeof(data1[0])), 0x00ff00,
        "Atom Synthesizer")->setDataSymbol(Chart::GlassSphere2Shape, 11);
    layer1->setLineWidth(3);
    layer1->setGapColor(c->dashLineColor(0x00ff00));

    // Add the third line. The missing data will be ignored - just join the gap with
    // the original line style.
    LineLayer *layer2 = c->addLineLayer();
    layer2->addDataSet(DoubleArray(data2, sizeof(data2)/sizeof(data2[0])), 0xff6600,
        "Proton Cannon")->setDataSymbol(Chart::GlassSphere2Shape, 11);
    layer2->setLineWidth(3);
    layer2->setGapColor(Chart::SameAsMainColor);

    // layout the legend so we can get the height of the legend box
    c->layoutLegend();

    // Adjust the plot area size, such that the bounding box (inclusive of axes) is
    // 15 pixels from the left edge, just under the legend box, 16 pixels from the
    // right edge, and 25 pixels from the bottom edge.
    c->packPlotArea(15, legendBox->getTopY() + legendBox->getHeight(), c->getWidth()
         - 16, c->getHeight() - 25);

    // Output the chart
    c->makeChart("missingpoints.jpg");

    //free up resources
    delete c;
    return 0;
}