Ejemplo n.º 1
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 2
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);
}
Ejemplo n.º 3
0
int main(int argc, char *argv[])
{
    // The data for the line chart
    double data0[] = {60.2, 51.7, 81.3, 48.6, 56.2, 68.9, 52.8};
    double data1[] = {30.0, 32.7, 33.9, 29.5, 32.2, 28.4, 29.8};
    const char *labels[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};

    // Create a XYChart object of size 300 x 180 pixels, with a pale yellow (0xffffc0) background, a
    // black border, and 1 pixel 3D border effect.
    XYChart *c = new XYChart(300, 180, 0xffffc0, 0x000000, 1);

    // Set the plotarea at (45, 35) and of size 240 x 120 pixels, with white background. Turn on
    // both horizontal and vertical grid lines with light grey color (0xc0c0c0)
    c->setPlotArea(45, 35, 240, 120, 0xffffff, -1, -1, 0xc0c0c0, -1);

    // Add a legend box at (45, 12) (top of the chart) using horizontal layout and 8pt Arial font
    // Set the background and border color to Transparent.
    c->addLegend(45, 12, false, "", 8)->setBackground(Chart::Transparent);

    // Add a title to the chart using 9pt Arial Bold/white font. Use a 1 x 2 bitmap pattern as the
    // background.
    int pattern1[] = {0x004000, 0x008000};
    c->addTitle("Server Load (Jun 01 - Jun 07)", "arialbd.ttf", 9, 0xffffff)->setBackground(
        c->patternColor(IntArray(pattern1, (int)(sizeof(pattern1) / sizeof(pattern1[0]))), 2));

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

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

    // Add a line layer to the chart
    LineLayer *layer = c->addLineLayer();

    // Add the first line. Plot the points with a 7 pixel square symbol
    layer->addDataSet(DoubleArray(data0, (int)(sizeof(data0) / sizeof(data0[0]))), 0xcf4040, "Peak"
        )->setDataSymbol(Chart::SquareSymbol, 7);

    // Add the second line. Plot the points with a 9 pixel dismond symbol
    layer->addDataSet(DoubleArray(data1, (int)(sizeof(data1) / sizeof(data1[0]))), 0x40cf40,
        "Average")->setDataSymbol(Chart::DiamondSymbol, 9);

    // Enable data label on the data points. Set the label format to nn%.
    layer->setDataLabelFormat("{value|0}%");

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

    //free up resources
    delete c;
    return 0;
}
void LineAnnotationImpl::updateStyle(Style& style) const {
    Layer* layer = style.getLayer(layerID);

    if (!layer) {
        auto newLayer = std::make_unique<LineLayer>(layerID, AnnotationManager::SourceID);
        newLayer->setSourceLayer(layerID);
        newLayer->setLineJoin(LineJoinType::Round);
        layer = style.addLayer(std::move(newLayer), AnnotationManager::PointLayerID);
    }

    LineLayer* lineLayer = layer->as<LineLayer>();
    lineLayer->setLineOpacity(annotation.opacity);
    lineLayer->setLineWidth(annotation.width);
    lineLayer->setLineColor(annotation.color);
}
Ejemplo n.º 5
0
void GraphWidget::drawFullChart(){
    nameList.clear();

    initChartViewer();

    XYChart *c = new XYChart(size.width(), 100, Chart::Transparent);

    c->setPlotArea(10, 5, c->getWidth() - 65, c->getHeight() - 15, 0x000000, -1, 0xC8C8C8,
        Chart::Transparent, 0xffffff);

    c->xAxis()->setColors(Chart::Transparent);
    c->xAxis()->setLabelStyle("arial.ttf", 10);
    c->xAxis()->setLabelGap(-1);
    c->xAxis()->setLabelAlignment(1);

    c->yAxis()->setColors(Chart::Transparent, Chart::Transparent);

    //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 y_data = ea_result->getYData();

        //添加图层
        LineLayer *layer = c->addLineLayer();
        layer->setFastLineMode();
        layer->setLineWidth(1);
        //设置X轴
        layer->setXData(getXData(i));
        //设置Y轴
        layer->addDataSet(y_data, ea_result->getColor(), ea_result->getName().toUtf8().data());
    }

    c->xAxis()->setDateScale(m_ChartViewer->getValueAtViewPort("x", 0), m_ChartViewer->getValueAtViewPort("x", 1));

//    c->xAxis()->setTickDensity(75);

    c->yAxis()->setRounding(false, false);

    delete m_ViewPortControl->getChart();
    m_ViewPortControl->setChart(c);
    drawChart();
}
Ejemplo n.º 6
0
//
// Draw the chart and display it in the given viewer
//
void ZoomScrollTrack2::drawChart(QChartViewer *viewer)
{
    // Get the start date and end date that are visible on the chart.
    double viewPortStartDate = viewer->getValueAtViewPort("x", viewer->getViewPortLeft());
    double viewPortEndDate = viewer->getValueAtViewPort("x", viewer->getViewPortLeft() +
        viewer->getViewPortWidth());

    // Get the array indexes that corresponds to the visible start and end dates
    int startIndex = (int)floor(Chart::bSearch(m_timeStamps, viewPortStartDate));
    int endIndex = (int)ceil(Chart::bSearch(m_timeStamps, viewPortEndDate));
    int noOfPoints = endIndex - startIndex + 1;

    // Extract the part of the data array that are visible.
    DoubleArray viewPortTimeStamps = DoubleArray(m_timeStamps.data + startIndex, noOfPoints);
    DoubleArray viewPortDataSeriesA = DoubleArray(m_dataSeriesA.data + startIndex, noOfPoints);
    DoubleArray viewPortDataSeriesB = DoubleArray(m_dataSeriesB.data + startIndex, noOfPoints);
    DoubleArray viewPortDataSeriesC = DoubleArray(m_dataSeriesC.data + startIndex, noOfPoints);

    //
    // At this stage, we have extracted the visible data. We can use those data to plot the chart.
    //

    ///////////////////////////////////////////////////////////////////////////////////////
    // Configure overall chart appearance.
    ///////////////////////////////////////////////////////////////////////////////////////

    // Create an XYChart object of size 650 x 350 pixels, with a white (ffffff) background and grey
    // (aaaaaa) border
    XYChart *c = new XYChart(650, 350, 0xffffff, 0xaaaaaa);

    // Set the plotarea at (55, 55) with width 90 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(55, 55, c->getWidth() - 90, c->getHeight() - 90, c->linearGradientColor(0, 55, 0,
        c->getHeight() - 35, 0xf0f6ff, 0xa0c0ff), -1, Chart::Transparent, 0xffffff, 0xffffff);

    // As the data can lie outside the plotarea in a zoomed chart, we need enable clipping.
    c->setClipping();

    // Add a title to the chart using 18 pts Times New Roman Bold Italic font
    c->addTitle("   Zooming and Scrolling with Track Line (2)", "timesbi.ttf", 18);

    // Add a legend box at (55, 30) using horizontal layout. Use 8pts Arial Bold as font. Set the
    // background and border color to Transparent and use line style legend key.
    LegendBox *b = c->addLegend(55, 30, false, "arialbd.ttf", 8);
    b->setBackground(Chart::Transparent);
    b->setLineStyleKey();

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

    // Add axis title using 10pts Arial Bold Italic font
    c->yAxis()->setTitle("Ionic Temperature (C)", "arialbi.ttf", 10);

    ///////////////////////////////////////////////////////////////////////////////////////
    // Add data to chart
    ///////////////////////////////////////////////////////////////////////////////////////

    //
    // In this example, we represent the data by lines. You may modify the code below to use other
    // representations (areas, scatter plot, etc).
    //

    // Add a line layer for the lines, using a line width of 2 pixels
    LineLayer *layer = c->addLineLayer();
    layer->setLineWidth(2);

    // In this demo, we do not have too many data points. In real code, the chart may contain a lot
    // of data points when fully zoomed out - much more than the number of horizontal pixels in this
    // plot area. So it is a good idea to use fast line mode.
    layer->setFastLineMode();

    // Now we add the 3 data series to a line layer, using the color red (ff0000), green
    // (00cc00) and blue (0000ff)
    layer->setXData(viewPortTimeStamps);
    layer->addDataSet(viewPortDataSeriesA, 0xff3333, "Alpha");
    layer->addDataSet(viewPortDataSeriesB, 0x008800, "Beta");
    layer->addDataSet(viewPortDataSeriesC, 0x3333CC, "Gamma");

    ///////////////////////////////////////////////////////////////////////////////////////
    // Configure axis scale and labelling
    ///////////////////////////////////////////////////////////////////////////////////////

    // Set the x-axis as a date/time axis with the scale according to the view port x range.
    viewer->syncDateAxisWithViewPort("x", c->xAxis());

    //
    // In this demo, the time range can be from a few years to a few days. We demonstrate how to set
    // up different date/time format based on the time range.
    //

    // If all ticks are yearly aligned, then we use "yyyy" as the label format.
    c->xAxis()->setFormatCondition("align", 360 * 86400);
    c->xAxis()->setLabelFormat("{value|yyyy}");

    // If all ticks are monthly aligned, then we use "mmm yyyy" in bold font as the first
    // label of a year, and "mmm" for other labels.
    c->xAxis()->setFormatCondition("align", 30 * 86400);
    c->xAxis()->setMultiFormat(Chart::StartOfYearFilter(), "<*font=bold*>{value|mmm yyyy}",
        Chart::AllPassFilter(), "{value|mmm}");

    // If all ticks are daily algined, then we use "mmm dd<*br*>yyyy" in bold font as the
    // first label of a year, and "mmm dd" in bold font as the first label of a month, and
    // "dd" for other labels.
    c->xAxis()->setFormatCondition("align", 86400);
    c->xAxis()->setMultiFormat(Chart::StartOfYearFilter(),
        "<*block,halign=left*><*font=bold*>{value|mmm dd<*br*>yyyy}",
        Chart::StartOfMonthFilter(), "<*font=bold*>{value|mmm dd}");
    c->xAxis()->setMultiFormat(Chart::AllPassFilter(), "{value|dd}");

    // For all other cases (sub-daily ticks), use "hh:nn<*br*>mmm dd" for the first label of
    // a day, and "hh:nn" for other labels.
    c->xAxis()->setFormatCondition("else");
    c->xAxis()->setMultiFormat(Chart::StartOfDayFilter(),
        "<*font=bold*>{value|hh:nn<*br*>mmm dd}", Chart::AllPassFilter(), "{value|hh:nn}");

    ///////////////////////////////////////////////////////////////////////////////////////
    // Output the chart
    ///////////////////////////////////////////////////////////////////////////////////////

    // We need to update the track line too. If the mouse is moving on the chart (eg. if 
    // the user drags the mouse on the chart to scroll it), the track line will be updated
    // in the MouseMovePlotArea event. Otherwise, we need to update the track line here.
	if ((!viewer->isInMouseMoveEvent()) && viewer->isMouseOnPlotArea())
        trackLineLabel(c, viewer->getPlotAreaMouseX());

    delete viewer->getChart();
    viewer->setChart(c);
}
Ejemplo n.º 7
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 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;
}
//
// Draw chart
//
void RealtimeChart::drawChart()
{
    // Create an XYChart object 600 x 270 pixels in size, with light white (ffffff)
    // background, white (000000) border, no raised effect, and with a rounded frame.
    XYChart *c = new XYChart(645, 270, 0xffffff, 0xffffff, 0);
    QColor bgColor = palette().color(backgroundRole()).rgb();
    //c->setRoundedFrame((bgColor.red() << 16) + (bgColor.green() << 8) + bgColor.blue());

    // Set the plotarea at (55, 62) and of size 520 x 175 pixels. Use white (ffffff)
    // background. Enable both horizontal and vertical grids by setting their colors to
    // grey (cccccc). Set clipping mode to clip the data lines to the plot area.
    c->setPlotArea(55, 62, 580, 185, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);
    c->setClipping();

    // Add a title to the chart using 15 pts Times New Roman Bold Italic font, with a light
    // grey (dddddd) background, black (000000) border, and a glass like raised effect.
    c->addTitle(m_mainTitle, "arialbd.ttf", 15);

    // Add a legend box at the top of the plot area with 9pts Arial Bold font. We set the
    // legend box to the same width as the plot area and use grid layout (as opposed to
    // flow or top/down layout). This distributes the 3 legend icons evenly on top of the
    // plot area.
    LegendBox *b = c->addLegend2(55, 33, 3, "arialbd.ttf", 9);
    b->setBackground(Chart::Transparent, Chart::Transparent);
    b->setWidth(580);

    // Configure the y-axis with a 10pts Arial Bold axis title
    c->yAxis()->setTitle(m_yTitle, "arialbd.ttf", 10);

    // Configure the x-axis to auto-scale with at least 75 pixels between major tick and
    // 15  pixels between minor ticks. This shows more minor grid lines on the chart.
    c->xAxis()->setTickDensity(75, 15);

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

    // Now we add the data to the chart.
    double lastTime = m_timeStamps[sampleSize - 1];
    if (lastTime != Chart::NoValue)
    {
        // Set up the x-axis to show the time range in the data buffer
        c->xAxis()->setDateScale(lastTime - DataInterval * sampleSize / 1000, lastTime);

        // Set the x-axis label format
        c->xAxis()->setLabelFormat("{value|hh:nn:ss}");

        // Create a line layer to plot the lines
        LineLayer *layer = c->addLineLayer();

        // The x-coordinates are the timeStamps.
        layer->setXData(DoubleArray(m_timeStamps, sampleSize));

        // The 3 data series are used to draw 3 lines. Here we put the latest data values
        // as part of the data set name, so you can see them updated in the legend box.
        char buffer[1024];

        sprintf(buffer, "%s: <*bgColor=FFCCCC*> %.2f ", m_labelA, m_dataSeriesA[sampleSize - 1]);
        layer->addDataSet(DoubleArray(m_dataSeriesA, sampleSize), 0xff0000, buffer);

        sprintf(buffer, "%s: <*bgColor=CCFFCC*> %.2f ", m_labelB, m_dataSeriesB[sampleSize - 1]);
        layer->addDataSet(DoubleArray(m_dataSeriesB, sampleSize), 0x00cc00, buffer);
    }

    // Set the chart image to the WinChartViewer
    m_ChartViewer->setChart(c);
    delete c;
}
Ejemplo n.º 10
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 11
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;

}