Пример #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);
}
Пример #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);
}
Пример #3
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();
}
Пример #4
0
int main(int argc, char *argv[])
{
    // The data for the chart
    double dataY[] = {1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1};
    double dataX[] = {Chart::chartTime(2008, 7, 1, 0, 0, 0), Chart::chartTime(2008, 7, 1, 2, 17, 2),
        Chart::chartTime(2008, 7, 1, 8, 5, 30), Chart::chartTime(2008, 7, 1, 10, 54, 10),
        Chart::chartTime(2008, 7, 1, 15, 40, 0), Chart::chartTime(2008, 7, 1, 18, 22, 20),
        Chart::chartTime(2008, 7, 1, 22, 17, 14), Chart::chartTime(2008, 7, 2, 2, 55, 50),
        Chart::chartTime(2008, 7, 2, 8, 17, 14), Chart::chartTime(2008, 7, 2, 11, 55, 50),
        Chart::chartTime(2008, 7, 2, 13, 17, 14), Chart::chartTime(2008, 7, 2, 17, 55, 50),
        Chart::chartTime(2008, 7, 2, 20, 17, 14), Chart::chartTime(2008, 7, 3, 0, 0, 0)};

    // In this example, we only use position 1, 3, 5 for the data series. Positions 0, 2, 4, 6 are
    // empty and serve as gaps.
    const char *labels[] = {"", "ON Only Filling", "",
        "<*font,color=cc2200*>ON<*/font*> / <*font,color=00aa22*>OFF<*/font*> Filling", "",
        "Logic Line", ""};

    // Create a XYChart object of size 600 x 180 pixels
    XYChart *c = new XYChart(600, 180);

    // Add a title to the chart using 10 points Arial Bold font. Set top/bottom margins to 12
    // pixels.
    TextBox *title = c->addTitle("Binary Data Series Demonstration", "arialbd.ttf", 10);

    // Tentatively set the plotarea at (100, 30) and of size 470 x 120 pixels. Use transparent
    // border. Use grey (888888) solid line and light grey (ccccc) dotted line as major and minor
    // vertical grid lines.
    c->setPlotArea(100, 30, 470, 120, -1, -1, Chart::Transparent)->setGridColor(Chart::Transparent,
        0x888888, Chart::Transparent, c->dashLineColor(0xcccccc, Chart::DotLine));

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

    // Set the y axis labels
    c->yAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]))));

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

    // Set x-axis major and minor tick density to 50 and 5 pixels. ChartDirector auto-scaling will
    // use this as the guideline when putting ticks on the x-axis.
    c->xAxis()->setTickDensity(50, 5);

    // Use "<*font=Arial Bold*>{value|mmm dd}" for the first label of an hour, and "{value|hh:nn}"
    // for all other labels.
    c->xAxis()->setMultiFormat(Chart::StartOfDayFilter(), "<*font=arialbd.ttf*>{value|mmm dd}",
        Chart::AllPassFilter(), "{value|hh:nn}");

    //
    // A Logic Line can be achieved using a StepLineLayer in ChartDirector
    //

    // Shift the data by 4.5, so instead of 0 - 1, it is now 4.5 to 5.5, or fluctuate around the y =
    // 5 (Logic Line label) position.
    ArrayMath shiftedLine0 = ArrayMath(DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0])))
        ).add(4.5);

    // Add step lines using the original and the reversed data
    StepLineLayer *layer0 = c->addStepLineLayer(shiftedLine0, 0x0000ff);
    layer0->setXData(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))));

    //
    // To perform ON/OFF filling, we draw the logic line, and its reverse, and fill the region in
    // between
    //

    // Shift the data by 2.5, so instead of 0 - 1, it is now 2.5 to 3.5, or fluctuate around the y =
    // 3 (ON/OFF Filing label) position.
    ArrayMath shiftedLine1 = ArrayMath(DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0])))
        ).add(2.5);
    // Reverse the data, so the 0 becomes 1 and 1 becomes 0, and shift it as well.
    ArrayMath reverseShiftedLine1 = ArrayMath(DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[
        0])))).mul(-1).add(3.5);

    // Add step lines using the original and the reversed data
    StepLineLayer *layer1 = c->addStepLineLayer(shiftedLine1, Chart::Transparent);
    layer1->addDataSet(reverseShiftedLine1, Chart::Transparent);
    layer1->setXData(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))));

    // Fill the region between the two step lines with green (00aa22) or red (cc2200), depending on
    // whether the original or the reserve is higher.
    c->addInterLineLayer(layer1->getLine(0), layer1->getLine(1), 0x00aa22, 0xcc2200);

    //
    // The ON Only filling is the same as ON/OFF filling, except the OFF filling color is
    // transparent
    //

    // Shift the data by 0.5, so instead of 0 - 1, it is now 0.5 to 1.5, or fluctuate around the y =
    // 1 (ON Only Filing label) position.
    ArrayMath shiftedLine2 = ArrayMath(DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0])))
        ).add(0.5);
    // Reverse the data, so the 0 becomes 1 and 1 becomes 0, and shift it as well.
    ArrayMath reverseShiftedLine2 = ArrayMath(DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[
        0])))).mul(-1).add(1.5);

    // Add step lines using the original and the reversed data
    StepLineLayer *layer2 = c->addStepLineLayer(shiftedLine2, Chart::Transparent);
    layer2->addDataSet(reverseShiftedLine2, Chart::Transparent);
    layer2->setXData(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))));

    // Fill the region between the two step lines with green (00aa22) or transparent, depending on
    // whether the original or the reserve is higher.
    c->addInterLineLayer(layer2->getLine(0), layer2->getLine(1), 0x00aa22, Chart::Transparent);

    // Adjust the plot area size, such that the bounding box (inclusive of axes) is 10 pixels from
    // the left edge, 10 pixels  below the title, 30 pixels from the right edge, and 10 pixels above
    // the bottom edge.
    c->packPlotArea(10, title->getHeight() + 10, c->getWidth() - 30, c->getHeight() - 10);

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

    //free up resources
    delete c;
    return 0;
}
Пример #5
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);
}
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;
}
Пример #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[] = {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;
}
int main(int argc, char *argv[])
{
    // The data for the chart
    double data[] = {800, 600, 1000, 1400};
    double widths[] = {250, 500, 960, 460};
    const char *labels[] = {"Wind", "Hydro", "Coal", "Natural Gas"};

    // The colors to use
    int colors[] = {0x00aa00, 0x66aaee, 0xee6622, 0xffbb00};

    // Create a XYChart object of size 500 x 350 pixels
    XYChart *c = new XYChart(500, 350);

    // Add a title to the chart using 15 pts Arial Italic font
    c->addTitle("Energy Generation Breakdown", "ariali.ttf", 15);

    // Set the plotarea at (60, 60) and of (chart_width - 90) x (chart_height - 100)
    // in size. Use a vertical gradient color from light blue (f9f9ff) to sky blue
    // (aaccff) as background. Set grid lines to white (ffffff).
    int plotAreaBgColor = c->linearGradientColor(0, 60, 0, c->getHeight() - 40,
        0xaaccff, 0xf9fcff);
    c->setPlotArea(60, 60, c->getWidth() - 90, c->getHeight() - 100, plotAreaBgColor,
        -1, -1, 0xffffff);

    // Add a legend box at (50, 30) using horizontal layout and transparent
    // background.
    c->addLegend(55, 30, false)->setBackground(Chart::Transparent);

    // Add titles to x/y axes with 10 points Arial Bold font
    c->xAxis()->setTitle("Mega Watts", "arialbd.ttf", 10);
    c->yAxis()->setTitle("Cost per MWh (dollars)", "arialbd.ttf", 10);

    // Set the x axis rounding to false, so that the x-axis will fit the data exactly
    c->xAxis()->setRounding(false, false);

    // In ChartDirector, there is no bar layer that can have variable bar widths, but
    // you may create a bar using an area layer. (A bar can be considered as the area
    // under a rectangular outline.) So by using a loop to create one bar per area
    // layer, we can achieve a variable width bar chart.

    // starting position of current bar
    double currentX = 0;

    int i;
    for(i = 0; i < sizeof(data) / sizeof(data[0]); ++i) {
        // ending position of current bar
        double nextX = currentX + widths[i];

        // outline of the bar
        double dataX[] = {currentX, currentX, nextX, nextX};
        double dataY[] = {0, data[i], data[i], 0};

        // create the area layer to fill the bar
        AreaLayer *layer = c->addAreaLayer(DoubleArray(dataY,
            sizeof(dataY)/sizeof(dataY[0])), colors[i], labels[i]);
        layer->setXData(DoubleArray(dataX, sizeof(dataX)/sizeof(dataX[0])));

        // the ending position becomes the starting position of the next bar
        currentX = nextX;
    }

    // Output the chart
    c->makeChart("varwidthbar.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;
}