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
void GraphWidget::drawChart()
{
    XYChart *c = new XYChart(size.width(), size.height() - 100, Chart::Transparent);

    c->setPlotArea(10, 50, c->getWidth() - 65, c->getHeight() - 10, 0x000000, -1, 0xC8C8C8, Chart::Transparent, Chart::Transparent);

    c->setClipping();

    c->getLegend()->setLineStyleKey();
    c->getLegend()->setFontSize(10);

    //遍历查询结果并绘制结果
    int ea_result_count = ea_results.size();
    //设置X轴的label
    for(int i = 0;i < ea_result_count;i++){
        ExchangeRateResult *ea_result = ea_results[i];
        DoubleArray x_data = getXData(i);
        DoubleArray y_data = ea_result->getYData();

        double viewPortStartDate = m_ChartViewer->getValueAtViewPort("x", m_ChartViewer->getViewPortLeft());
        double viewPortEndDate = m_ChartViewer->getValueAtViewPort("x", m_ChartViewer->getViewPortLeft() +
            m_ChartViewer->getViewPortWidth());

        int startIndex = (int)floor(Chart::bSearch(x_data, viewPortStartDate));
        int endIndex = (int)ceil(Chart::bSearch(x_data, viewPortEndDate));
        int noOfPoints = endIndex - startIndex + 1;

        DoubleArray viewPortXData = DoubleArray(x_data.data + startIndex, noOfPoints);
        DoubleArray viewPortYData = DoubleArray(y_data.data + startIndex, noOfPoints);
        //添加图层
        LineLayer *layer = c->addLineLayer();
        layer->setLineWidth(1);
        //设置X轴
        layer->setXData(viewPortXData);
        //设置Y轴
        layer->addDataSet(viewPortYData, ea_result->getColor(), ea_result->getName().toUtf8().data())->setUseYAxis2();
    }
    c->xAxis()->setLabelStyle("arial.ttf", 10);
    c->yAxis2()->setLabelStyle("arial.ttf", 10);
    c->xAxis()->setColors(0xC8C8C8, 0xC8C8C8);
    c->yAxis2()->setColors(0xC8C8C8, 0xC8C8C8);

    m_ChartViewer->syncDateAxisWithViewPort("x", c->xAxis());

    c->yAxis()->setTickDensity(30);
    c->yAxis2()->setTickDensity(30);

    if (!m_ChartViewer->isInMouseMoveEvent())
    {
        trackLineLegend(c, (0 == m_ChartViewer->getChart()) ? c->getPlotArea()->getRightX() :
            m_ChartViewer->getPlotAreaMouseX());
    }
    delete m_ChartViewer->getChart();
    m_ChartViewer->setChart(c);
}
Ejemplo n.º 3
0
//
// Draw the chart and display it in the given viewer
//
void TrackAxis::drawChart(QChartViewer *viewer)
{
    // Data for the chart as 2 random data series
    RanSeries r(127);
    DoubleArray data0 = r.getSeries(180, 10, -1.5, 1.5);
    DoubleArray data1 = r.getSeries(180, 150, -15, 15);
    DoubleArray timeStamps = r.getDateSeries(180, Chart::chartTime(2011, 1, 1), 86400);

    // Create a XYChart object of size 670 x 400 pixels
    XYChart *c = new XYChart(670, 400);

    // Add a title to the chart using 18 pts Times New Roman Bold Italic font
    c->addTitle("Plasma Stabilizer Energy Usage", "timesbi.ttf", 18);

    // Set the plotarea at (50, 55) with width 100 pixels less than chart width, and height 90 pixels
    // less than chart height. Use a vertical gradient from light blue (f0f6ff) to sky blue (a0c0ff)
    // as background. Set border to transparent and grid lines to white (ffffff).
    c->setPlotArea(50, 55, c->getWidth() - 100, c->getHeight() - 90, c->linearGradientColor(0, 55, 0,
        c->getHeight() - 35, 0xf0f6ff, 0xa0c0ff), -1, Chart::Transparent, 0xffffff, 0xffffff);

    // Add a legend box at (50, 25) using horizontal layout. Use 10pts Arial Bold as font. Set the
    // background and border color to Transparent.
    c->addLegend(50, 25, false, "arialbd.ttf", 10)->setBackground(Chart::Transparent);

    // 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);

    // Set the axis stem to transparent
    c->xAxis()->setColors(Chart::Transparent);
    c->yAxis()->setColors(Chart::Transparent);
    c->yAxis2()->setColors(Chart::Transparent);

    // Configure x-axis label format
    c->xAxis()->setMultiFormat(Chart::StartOfYearFilter(), "{value|mm/yyyy} ",
        Chart::StartOfMonthFilter(), "{value|mm}");

    // Add axis title using 10pts Arial Bold Italic font
    c->yAxis()->setTitle("Power Usage (Watt)", "arialbi.ttf", 10);
    c->yAxis2()->setTitle("Effective Load (kg)", "arialbi.ttf", 10);

    // Add a line layer to the chart using a line width of 2 pixels.
    LineLayer *layer = c->addLineLayer();
    layer->setLineWidth(2);

    // Add 2 data series to the line layer
    layer->setXData(timeStamps);
    layer->addDataSet(data0, 0xcc0000, "Power Usage");
    layer->addDataSet(data1, 0x008800, "Effective Load")->setUseYAxis2();

    // Set the chart image to the QChartViewer
    viewer->setChart(c);
}
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[])
{
    // The data for the 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};

    // The labels for the bottom x axis. Note the "-" means a minor tick.
    const char *labels0[] = {"0\nJun 4", "1", "2", "3", "4", "5", "6", "7", "8", "9",
        "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22",
        "23", "0\nJun 5"};

    // The labels for the top x axis. Note that "-" means a minor tick.
    const char *labels1[] = {"Jun 3\n12", "13", "14", "15", "16", "17", "18", "19",
        "20", "21", "22", "23", "Jun 4\n0", "1", "2", "3", "4", "5", "6", "7", "8",
        "9", "10", "11", "12"};

    // Create a XYChart object of size 310 x 310 pixels
    XYChart *c = new XYChart(310, 310);

    // Set the plotarea at (50, 50) and of size 200 x 200 pixels
    c->setPlotArea(50, 50, 200, 200);

    // Add a title to the primary (left) y axis
    c->yAxis()->setTitle("US Dollars");

    // Set the tick length to -4 pixels (-ve means ticks inside the plot area)
    c->yAxis()->setTickLength(-4);

    // Add a title to the secondary (right) y axis
    c->yAxis2()->setTitle("HK Dollars (1 USD = 7.8 HKD)");

    // Set the tick length to -4 pixels (-ve means ticks inside the plot area)
    c->yAxis2()->setTickLength(-4);

    // Synchronize the y-axis such that y2 = 7.8 x y1
    c->syncYAxis(7.8);

    // Add a title to the bottom x axis
    c->xAxis()->setTitle("Hong Kong Time");

    // Set the labels on the x axis.
    c->xAxis()->setLabels(StringArray(labels0, sizeof(labels0)/sizeof(labels0[0])));

    // Display 1 out of 3 labels on the x-axis. Show minor ticks for remaining
    // labels.
    c->xAxis()->setLabelStep(3, 1);

    // Set the major tick length to -4 pixels and minor tick length to -2 pixels (-ve
    // means ticks inside the plot area)
    c->xAxis()->setTickLength(-4, -2);

    // Set the distance between the axis labels and the axis to 6 pixels
    c->xAxis()->setLabelGap(6);

    // Add a title to the top x-axis
    c->xAxis2()->setTitle("New York Time");

    // Set the labels on the x axis.
    c->xAxis2()->setLabels(StringArray(labels1, sizeof(labels1)/sizeof(labels1[0])));

    // Display 1 out of 3 labels on the x-axis. Show minor ticks for remaining
    // labels.
    c->xAxis2()->setLabelStep(3, 1);

    // Set the major tick length to -4 pixels and minor tick length to -2 pixels (-ve
    // means ticks inside the plot area)
    c->xAxis2()->setTickLength(-4, -2);

    // Set the distance between the axis labels and the axis to 6 pixels
    c->xAxis2()->setLabelGap(6);

    // Add a line layer to the chart with a line width of 2 pixels
    c->addLineLayer(DoubleArray(data0, sizeof(data0)/sizeof(data0[0])), -1,
        "Red Transactions")->setLineWidth(2);

    // Add an area layer to the chart with no area boundary line
    c->addAreaLayer(DoubleArray(data1, sizeof(data1)/sizeof(data1[0])), -1,
        "Green Transactions")->setLineWidth(0);

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

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