/// <summary>
/// Load the data
/// </summary>
private void loadData()
{
// In this demo, we allow scrolling for the last 5 years.
DateTime lastDate = DateTime.Now.Date;
DateTime firstDate = DateTime.Now.Date.AddYears(-5);
// The initial view port is to show 1 year of data.
currentDuration = lastDate.Subtract(DateTime.Now.Date.AddYears(-1)).TotalSeconds;
//
// Get the data and stores them in a memory buffer for fast scrolling / zooming. In
// this demo, we just use a random number generator. In practice, you may get the data
// from a database or XML or by other means. (See the ChartDirector documentation on
// "Using Data Sources with ChartDirector" if you need some sample code on how to read
// data from database to array variables.)
//
// Set up random number generator
RanTable r = new RanTable(127, 4, lastDate.Subtract(firstDate).Days + 1);
r.setDateCol(0, firstDate, 86400);
r.setCol(1, 150, -10, 10);
r.setCol(2, 200, -10, 10);
r.setCol(3, 250, -10, 10);
// Read random data into the data arrays
timeStamps = Chart.NTime(r.getCol(0));
dataSeriesA = r.getCol(1);
dataSeriesB = r.getCol(2);
dataSeriesC = r.getCol(3);
}
//Main code for creating chart.
//Note: the argument chartIndex is unused because this demo only has 1 chart.
public void createChart(WPFChartViewer viewer, int chartIndex)
{
// Use random table to generate a random series. The random table is set to 1 col x 51
// rows, with 9 as the seed
RanTable rantable = new RanTable(9, 1, 51);
// Set the 1st column to start from 100, with changes between rows from -5 to +5
rantable.setCol(0, 100, -5, 5);
// Get the 1st column of the random table as the data set
double[] data = rantable.getCol(0);
// Create a XYChart object of size 600 x 300 pixels
XYChart c = new XYChart(600, 300);
// Set the plotarea at (50, 35) and of size 500 x 240 pixels. Enable both the horizontal
// and vertical grids by setting their colors to grey (0xc0c0c0)
c.setPlotArea(50, 35, 500, 240).setGridColor(0xc0c0c0, 0xc0c0c0);
// Add a title to the chart using 18 point Times Bold Itatic font.
c.addTitle("LOWESS Generic Curve Fitting Algorithm", "Times New Roman Bold Italic", 18);
// Set the y axis line width to 3 pixels
c.yAxis().setWidth(3);
// Add a title to the x axis using 12pt Arial Bold Italic font
c.xAxis().setTitle("Server Load (TPS)", "Arial Bold Italic", 12);
// Set the x axis line width to 3 pixels
c.xAxis().setWidth(3);
// Set the x axis scale from 0 - 50, with major tick every 5 units and minor tick every
// 1 unit
c.xAxis().setLinearScale(0, 50, 5, 1);
// Add a blue layer to the chart
LineLayer layer = c.addLineLayer2();
// Add a red (0x80ff0000) data set to the chart with square symbols
layer.addDataSet(data, unchecked ((int)0x80ff0000)).setDataSymbol(Chart.SquareSymbol);
// Set the line width to 2 pixels
layer.setLineWidth(2);
// Use lowess for curve fitting, and plot the fitted data using a spline layer with line
// width set to 3 pixels
c.addSplineLayer(new ArrayMath(data).lowess().result(), 0x0000ff).setLineWidth(3);
// Set zero affinity to 0 to make sure the line is displayed in the most detail scale
c.yAxis().setAutoScale(0, 0, 0);
// Output the chart
viewer.Chart = c;
//include tool tip for the chart
viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='({x}, {value|2})'");
}
//
// Create chart
//
private void createChart(RazorChartViewer viewer)
{
// Get the selected year and month
int selectedYear = int.Parse(Request["year"]);
int selectedMonth = int.Parse(Request["x"]) + 1;
//
// In real life, the data may come from a database based on selectedYear. In this example, we
// just use a random number generator.
//
int seed = (selectedYear - 1992) * (100 + 3 * selectedMonth);
RanTable rantable = new RanTable(seed, 1, 4);
rantable.setCol(0, seed * 0.003, seed * 0.017);
double[] data = rantable.getCol(0);
// The labels for the pie chart
string[] labels = { "Services", "Hardware", "Software", "Others" };
// Create a PieChart object of size 600 x 240 pixels
PieChart c = new PieChart(600, 280);
// Set the center of the pie at (300, 140) and the radius to 120 pixels
c.setPieSize(300, 140, 120);
// Add a title to the pie chart using 18pt Times Bold Italic font
c.addTitle("Revenue Breakdown for " + selectedMonth + "/" + selectedYear,
"Times New Roman Bold Italic", 18);
// Draw the pie in 3D with 20 pixels 3D depth
c.set3D(20);
// Set label format to display sector label, value and percentage in two lines
c.setLabelFormat("{label}<*br*>${value|2}M ({percent}%)");
// Set label style to 10pt Arial Bold Italic font. Set background color to the same as the
// sector color, with reduced-glare glass effect and rounded corners.
ChartDirector.TextBox t = c.setLabelStyle("Arial Bold Italic", 10);
t.setBackground(Chart.SameAsMainColor, Chart.Transparent, Chart.glassEffect(
Chart.ReducedGlare));
t.setRoundedCorners();
// Use side label layout method
c.setLabelLayout(Chart.SideLayout);
// Set the pie data and the pie labels
c.setData(data, labels);
// Create the image and save it in a temporary location
viewer.Image = c.makeWebImage(Chart.PNG);
// Create an image map for the chart
viewer.ImageMap = c.getHTMLImageMap(Url.Action("", "piestub"), "",
"title='{label}:US$ {value|2}M'");
}
//
// Create a random table for demo purpose.
//
private RanTable getRandomTable()
{
RanTable r = new RanTable(127, 4, 1828);
r.setDateCol(0, new DateTime(2010, 1, 1), 86400);
r.setCol(1, 150, -10, 10);
r.setCol(2, 200, -10, 10);
r.setCol(3, 250, -8, 8);
return(r);
}
//
// Create chart
//
private void createChart(RazorChartViewer viewer)
{
// Create a finance chart demo containing 100 days of data
int noOfDays = 100;
// To compute moving averages starting from the first day, we need to get extra data points
// before the first day
int extraDays = 30;
// In this exammple, we use a random number generator utility to simulate the data. We set up
// the random table to create 6 cols x (noOfDays + extraDays) rows, using 9 as the seed.
RanTable rantable = new RanTable(9, 6, noOfDays + extraDays);
// Set the 1st col to be the timeStamp, starting from Sep 4, 2002, with each row representing
// one day, and counting week days only (jump over Sat and Sun)
rantable.setDateCol(0, new DateTime(2002, 9, 4), 86400, true);
// Set the 2nd, 3rd, 4th and 5th columns to be high, low, open and close data. The open value
// starts from 100, and the daily change is random from -5 to 5.
rantable.setHLOCCols(1, 100, -5, 5);
// Set the 6th column as the vol data from 5 to 25 million
rantable.setCol(5, 50000000, 250000000);
// Now we read the data from the table into arrays
double[] timeStamps = rantable.getCol(0);
double[] highData = rantable.getCol(1);
double[] lowData = rantable.getCol(2);
double[] openData = rantable.getCol(3);
double[] closeData = rantable.getCol(4);
double[] volData = rantable.getCol(5);
// Create a FinanceChart object of width 640 pixels
FinanceChart c = new FinanceChart(640);
// Add a title to the chart
c.addTitle("Finance Chart Demonstration");
// Set the data into the finance chart object
c.setData(timeStamps, highData, lowData, openData, closeData, volData, extraDays);
// Add a slow stochastic chart (75 pixels high) with %K = 14 and %D = 3
c.addSlowStochastic(75, 14, 3, 0x006060, 0x606000);
// Add the main chart with 240 pixels in height
c.addMainChart(240);
// Add a 10 period simple moving average to the main chart, using brown color
c.addSimpleMovingAvg(10, 0x663300);
// Add a 20 period simple moving average to the main chart, using purple color
c.addSimpleMovingAvg(20, 0x9900ff);
// Add candlestick symbols to the main chart, using green/red for up/down days
c.addCandleStick(0x00ff00, 0xff0000);
// Add 20 days donchian channel to the main chart, using light blue (9999ff) as the border
// and semi-transparent blue (c06666ff) as the fill color
c.addDonchianChannel(20, 0x9999ff, unchecked ((int)0xc06666ff));
// Add a 75 pixels volume bars sub-chart to the bottom of the main chart, using
// green/red/grey for up/down/flat days
c.addVolBars(75, 0x99ff99, 0xff9999, 0x808080);
// Append a MACD(26, 12) indicator chart (75 pixels high) after the main chart, using 9 days
// for computing divergence.
c.addMACD(75, 26, 12, 9, 0x0000ff, 0xff00ff, 0x008000);
// Output the chart
viewer.Image = c.makeWebImage(Chart.PNG);
}
//Main code for creating chart.
//Note: the argument chartIndex is unused because this demo only has 1 chart.
public void createChart(WPFChartViewer viewer, int chartIndex)
{
// Create a finance chart demo containing 100 days of data
int noOfDays = 100;
// To compute moving averages starting from the first day, we need to get extra data
// points before the first day
int extraDays = 30;
// In this exammple, we use a random number generator utility to simulate the data. We
// set up the random table to create 6 cols x (noOfDays + extraDays) rows, using 9 as
// the seed.
RanTable rantable = new RanTable(9, 6, noOfDays + extraDays);
// Set the 1st col to be the timeStamp, starting from Sep 4, 2014, with each row
// representing one day, and counting week days only (jump over Sat and Sun)
rantable.setDateCol(0, new DateTime(2014, 9, 4), 86400, true);
// Set the 2nd, 3rd, 4th and 5th columns to be high, low, open and close data. The open
// value starts from 100, and the daily change is random from -5 to 5.
rantable.setHLOCCols(1, 100, -5, 5);
// Set the 6th column as the vol data from 5 to 25 million
rantable.setCol(5, 50000000, 250000000);
// Now we read the data from the table into arrays
double[] timeStamps = rantable.getCol(0);
double[] highData = rantable.getCol(1);
double[] lowData = rantable.getCol(2);
double[] openData = rantable.getCol(3);
double[] closeData = rantable.getCol(4);
double[] volData = rantable.getCol(5);
// Custom data series should be of the same length as the OHLC data series
double[] buySignal = new double[closeData.Length];
double[] sellSignal = new double[closeData.Length];
//
// The following is just an arbitrary algorithm to create some meaningless buySignal and
// sellSignal. They are just for demonstrating the charting engine. Please do not use
// them for actual trading.
//
double[] sma5 = new ArrayMath(closeData).movAvg(5).result();
double[] sma20 = new ArrayMath(closeData).movAvg(20).result();
for (int i = 0; i < sma5.Length; ++i)
{
buySignal[i] = Chart.NoValue;
sellSignal[i] = Chart.NoValue;
if (i > 0)
{
if ((sma5[i - 1] <= sma20[i - 1]) && (sma5[i] > sma20[i]))
{
buySignal[i] = lowData[i];
}
if ((sma5[i - 1] >= sma20[i - 1]) && (sma5[i] < sma20[i]))
{
sellSignal[i] = highData[i];
}
}
}
// Create a FinanceChart object of width 640 pixels
FinanceChart c = new FinanceChart(640);
// Add a title to the chart
c.addTitle("Finance Chart with Custom Symbols");
// Set the data into the finance chart object
c.setData(timeStamps, highData, lowData, openData, closeData, volData, extraDays);
// Add the main chart with 240 pixels in height
XYChart mainChart = c.addMainChart(240);
// Add buy signal symbols to the main chart, using cyan (0x00ffff) upward pointing
// arrows as symbols
ScatterLayer buyLayer = mainChart.addScatterLayer(null, buySignal, "Buy",
Chart.ArrowShape(0, 1, 0.4, 0.4), 11, 0x00ffff);
// Shift the symbol lower by 20 pixels
buyLayer.getDataSet(0).setSymbolOffset(0, 20);
// Add sell signal symbols to the main chart, using purple (0x9900cc) downward pointing
// arrows as symbols
ScatterLayer sellLayer = mainChart.addScatterLayer(null, sellSignal, "Sell",
Chart.ArrowShape(180, 1, 0.4, 0.4), 11, 0x9900cc);
// Shift the symbol higher by 20 pixels
sellLayer.getDataSet(0).setSymbolOffset(0, -20);
// Add a 5 period simple moving average to the main chart, using brown color
c.addSimpleMovingAvg(5, 0x663300);
// Add a 20 period simple moving average to the main chart, using purple color
c.addSimpleMovingAvg(20, 0x9900ff);
// Add candlestick symbols to the main chart, using green/red for up/down days
c.addCandleStick(0x66ff66, 0xff6666);
// Add a volume indicator chart (75 pixels high) after the main chart, using
// green/red/grey for up/down/flat days
c.addVolIndicator(75, 0x99ff99, 0xff9999, 0x808080);
// Append a 14-days RSI indicator chart (75 pixels high) after the main chart. The main
// RSI line is purple (800080). Set threshold region to +/- 20 (that is, RSI = 50 +/-
// 25). The upper/lower threshold regions will be filled with red (ff0000)/blue
// (0000ff).
c.addRSI(75, 14, 0x800080, 20, 0xff0000, 0x0000ff);
// Output the chart
viewer.Chart = c;
}
//Main code for creating chart.
//Note: the argument chartIndex is unused because this demo only has 1 chart.
public void createChart(WPFChartViewer viewer, int chartIndex)
{
//
// We use a random table to simulate generating 12 months of data
//
// Create the random table object with 4 cols * 12 rows, using 3 as seed
RanTable rantable = new RanTable(3, 4, 12);
// Set the 1st column to be the 12 months of year 2002
rantable.setDateCol(0, new DateTime(2002, 1, 1), 86400 * 30);
// Set the 2nd, 3rd and 4th columns to be random numbers starting from 125, 75, and 100
// respectively. The change between rows is set to -35 to + 35. The minimum value of any
// cell is 0.
rantable.setCol(1, 125, -35, 35, 0);
rantable.setCol(2, 75, -35, 35, 0);
rantable.setCol(3, 100, -35, 35, 0);
// Get the 1st column (time) as the x data
double[] dataX = rantable.getCol(0);
// Get the 2nd, 3rd and 4th columns as 3 data sets
double[] dataY0 = rantable.getCol(1);
double[] dataY1 = rantable.getCol(2);
double[] dataY2 = rantable.getCol(3);
// Create a XYChart object of size 360 x 400 pixels
XYChart c = new XYChart(360, 400);
// Add a title to the chart
c.addTitle("<*underline=2*>Rotated Line Chart Demo", "Times New Roman Bold Italic", 14);
// Set the plotarea at (60, 75) and of size 190 x 320 pixels. Turn on both horizontal
// and vertical grid lines with light grey color (0xc0c0c0)
c.setPlotArea(60, 75, 190, 320).setGridColor(0xc0c0c0, 0xc0c0c0);
// Add a legend box at (270, 75)
c.addLegend(270, 75);
// Swap the x and y axis to become a rotated chart
c.swapXY();
// Set the y axis on the top side (right + rotated = top)
c.setYAxisOnRight();
// Add a title to the y axis
c.yAxis().setTitle("Throughput (MBytes)");
// Reverse the x axis so it is pointing downwards
c.xAxis().setReverse();
// Add a line chart layer using the given data
LineLayer layer = c.addLineLayer2();
layer.setXData(dataX);
layer.addDataSet(dataY0, 0xff0000, "Server A");
layer.addDataSet(dataY1, 0x338033, "Server B");
layer.addDataSet(dataY2, 0x0000ff, "Server C");
// Set the line width to 2 pixels
layer.setLineWidth(2);
// Output the chart
viewer.Chart = c;
//include tool tip for the chart
viewer.ImageMap = c.getHTMLImageMap("clickable", "",
"title='[{dataSetName}] {x|mm/yyyy}: {value|0} MByte'");
}
//Main code for creating chart.
//Note: the argument chartIndex is unused because this demo only has 1 chart.
public void createChart(WinChartViewer viewer, int chartIndex)
{
// Create a finance chart demo containing 100 days of data
int noOfDays = 100;
// To compute moving averages starting from the first day, we need to get extra data
// points before the first day
int extraDays = 30;
// In this exammple, we use a random number generator utility to simulate the data. We
// set up the random table to create 6 cols x (noOfDays + extraDays) rows, using 9 as
// the seed.
RanTable rantable = new RanTable(9, 6, noOfDays + extraDays);
// Set the 1st col to be the timeStamp, starting from Sep 4, 2002, with each row
// representing one day, and counting week days only (jump over Sat and Sun)
rantable.setDateCol(0, new DateTime(2002, 9, 4), 86400, true);
// Set the 2nd, 3rd, 4th and 5th columns to be high, low, open and close data. The open
// value starts from 100, and the daily change is random from -5 to 5.
rantable.setHLOCCols(1, 100, -5, 5);
// Set the 6th column as the vol data from 5 to 25 million
rantable.setCol(5, 50000000, 250000000);
// Now we read the data from the table into arrays
double[] timeStamps = rantable.getCol(0);
double[] highData = rantable.getCol(1);
double[] lowData = rantable.getCol(2);
double[] openData = rantable.getCol(3);
double[] closeData = rantable.getCol(4);
double[] volData = rantable.getCol(5);
// Create a FinanceChart object of width 640 pixels
FinanceChart c = new FinanceChart(640);
// Add a title to the chart
c.addTitle("Finance Chart Demonstration");
// Set the data into the finance chart object
c.setData(timeStamps, highData, lowData, openData, closeData, volData, extraDays);
// Add the main chart with 240 pixels in height
c.addMainChart(240);
// Add a 5 period simple moving average to the main chart, using brown color
c.addSimpleMovingAvg(5, 0x663300);
// Add a 20 period simple moving average to the main chart, using purple color
c.addSimpleMovingAvg(20, 0x9900ff);
// Add HLOC symbols to the main chart, using green/red for up/down days
c.addHLOC(0x008000, 0xcc0000);
// Add 20 days bollinger band to the main chart, using light blue (9999ff) as the border
// and semi-transparent blue (c06666ff) as the fill color
c.addBollingerBand(20, 2, 0x9999ff, unchecked ((int)0xc06666ff));
// Add a 75 pixels volume bars sub-chart to the bottom of the main chart, using
// green/red/grey for up/down/flat days
c.addVolBars(75, 0x99ff99, 0xff9999, 0x808080);
// Append a 14-days RSI indicator chart (75 pixels high) after the main chart. The main
// RSI line is purple (800080). Set threshold region to +/- 20 (that is, RSI = 50 +/-
// 25). The upper/lower threshold regions will be filled with red (ff0000)/blue
// (0000ff).
c.addRSI(75, 14, 0x800080, 20, 0xff0000, 0x0000ff);
// Append a 12-days momentum indicator chart (75 pixels high) using blue (0000ff) color.
c.addMomentum(75, 12, 0x0000ff);
// Output the chart
viewer.Chart = c;
}
//
// Create chart
//
private void createChart(RazorChartViewer viewer)
{
// Get the selected year.
string selectedYear = Request["xLabel"];
//
// In real life, the data may come from a database based on selectedYear. In this example, we
// just use a random number generator.
//
int seed = 50 + (int.Parse(selectedYear) - 1996) * 15;
RanTable rantable = new RanTable(seed, 1, 12);
rantable.setCol2(0, seed, -seed * 0.25, seed * 0.33, seed * 0.1, seed * 3);
double[] data = rantable.getCol(0);
//
// Now we obtain the data into arrays, we can start to draw the chart using ChartDirector
//
// Create a XYChart object of size 600 x 320 pixels
XYChart c = new XYChart(600, 360);
// Add a title to the chart using 18pt Times Bold Italic font
c.addTitle("Month Revenue for Star Tech for " + selectedYear, "Times New Roman Bold Italic",
18);
// Set the plotarea at (60, 40) and of size 500 x 280 pixels. Use a vertical gradient color
// from light blue (eeeeff) to deep blue (0000cc) as background. Set border and grid lines to
// white (ffffff).
c.setPlotArea(60, 40, 500, 280, c.linearGradientColor(60, 40, 60, 280, 0xeeeeff, 0x0000cc),
-1, 0xffffff, 0xffffff);
// Add a red line (ff0000) chart layer using the data
ChartDirector.DataSet dataSet = c.addLineLayer().addDataSet(data, 0xff0000, "Revenue");
// Set the line width to 3 pixels
dataSet.setLineWidth(3);
// Use a 13 point circle symbol to plot the data points
dataSet.setDataSymbol(Chart.CircleSymbol, 13);
// Set the labels on the x axis. In this example, the labels must be Jan - Dec.
string[] labels = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept", "Oct",
"Nov", "Dec" };
c.xAxis().setLabels(labels);
// When auto-scaling, use tick spacing of 40 pixels as a guideline
c.yAxis().setTickDensity(40);
// Add a title to the x axis to reflect the selected year
c.xAxis().setTitle("Year " + selectedYear, "Times New Roman Bold Italic", 12);
// Add a title to the y axis
c.yAxis().setTitle("USD (millions)", "Times New Roman Bold Italic", 12);
// Set axis label style to 8pt Arial Bold
c.xAxis().setLabelStyle("Arial Bold", 8);
c.yAxis().setLabelStyle("Arial Bold", 8);
// Set axis line width to 2 pixels
c.xAxis().setWidth(2);
c.yAxis().setWidth(2);
// Create the image and save it in a temporary location
viewer.Image = c.makeWebImage(Chart.PNG);
// Create an image map for the chart
viewer.ImageMap = c.getHTMLImageMap(Url.Action("", "clickpie", new { year = selectedYear }),
"", "title='{xLabel}: US$ {value|0}M'");
}
//
// Draw the chart
//
private void drawChart(RazorChartViewer viewer)
{
// Determine the visible x-axis range
DateTime viewPortStartDate = Chart.NTime(viewer.getValueAtViewPort("x", viewer.ViewPortLeft))
;
DateTime viewPortEndDate = Chart.NTime(viewer.getValueAtViewPort("x", viewer.ViewPortLeft +
viewer.ViewPortWidth));
// We need to get the data within the visible x-axis range. In real code, this can be by
// using a database query or some other means as specific to the application. In this demo,
// we just generate a random data table, and then select the data within the table.
RanTable r = getRandomTable();
// Select the data for the visible date range viewPortStartDate to viewPortEndDate. It is
// possible there is no data point at exactly viewPortStartDate or viewPortEndDate. In this
// case, we also need the data points that are just outside the visible date range to
// "overdraw" the line a little bit (the "overdrawn" part will be clipped to the plot area)
// In this demo, we do this by adding a one day margin to the date range when selecting the
// data.
r.selectDate(0, viewPortStartDate.AddDays(-1), viewPortEndDate.AddDays(1));
// The selected data from the random data table
DateTime[] timeStamps = Chart.NTime(r.getCol(0));
double[] dataSeriesA = r.getCol(1);
double[] dataSeriesB = r.getCol(2);
double[] dataSeriesC = r.getCol(3);
//
// Now we have obtained the data, we can plot the chart.
//
//================================================================================
// Configure overall chart appearance.
//================================================================================
// Create an XYChart object of size 640 x 350 pixels
XYChart c = new XYChart(640, 350);
// Set the plotarea at (55, 55) with width 80 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() - 80, 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 to enable clipping.
c.setClipping();
// Add a title to the chart using 18pt Times New Roman Bold Italic font
c.addTitle(" Zooming and Scrolling with Track Line", "Times New Roman Bold Italic", 18);
// Set the axis stem to transparent
c.xAxis().setColors(Chart.Transparent);
c.yAxis().setColors(Chart.Transparent);
// Add axis title using 10pt Arial Bold Italic font
c.yAxis().setTitle("Ionic Temperature (C)", "Arial Bold Italic", 10);
//================================================================================
// Add data to chart
//================================================================================
//
// In this example, we represent the data by lines. You may modify the code below to use
// other layer types (areas, scatter plot, etc).
//
// Add a line layer for the lines, using a line width of 2 pixels
LineLayer layer = c.addLineLayer2();
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();
// Add up to 3 data series to a line layer, depending on whether the user has selected the
// data series.
layer.setXData(timeStamps);
if (viewer.GetCustomAttr("data0CheckBox") != "F")
{
layer.addDataSet(dataSeriesA, 0xff3333, "Alpha Series");
}
if (viewer.GetCustomAttr("data1CheckBox") != "F")
{
layer.addDataSet(dataSeriesB, 0x008800, "Beta Series");
}
if (viewer.GetCustomAttr("data2CheckBox") != "F")
{
layer.addDataSet(dataSeriesC, 0x3333cc, "Gamma Series");
}
//================================================================================
// 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().setMultiFormat2(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}");
//================================================================================
// Step 5 - Output the chart
//================================================================================
// Output the chart
viewer.Image = c.makeWebImage(Chart.PNG);
// Output Javascript chart model to the browser to suppport tracking cursor
viewer.ChartModel = c.getJsChartModel();
}
//
// Create chart
//
private void createChart(RazorChartViewer viewer)
{
//
// We use a random number generator to simulate the data from 9:30am to 4:30pm with one
// data point every 4 minutes. The total number of points during that period is 106. (7
// hours x 15 points/hour + 1)
//
int noOfPoints = 106;
// Assume we have not reached the end of the day yet, and only 85 points are available.
// Create a random table object of 1 col x 85 rows, using 9 as seed.
RanTable rantable = new RanTable(9, 1, 85);
// Set the 1st column to start with 1800 and with random delta from -5 to 5.
rantable.setCol(0, 1800, -5, 5);
// Get the data as the 1st column of the random table
double[] data = rantable.getCol(0);
// The x-axis labels for the chart
string[] labels = { "-", "10am", "-", " ", "-", "12am", "-", " ", "-", "2pm", "-", " ", "-",
"4pm", "-" };
//
// Now we obtain the data into arrays, we can start to draw the chart using ChartDirector
//
// Create a XYChart object of size 180 x 180 pixels with a blue background (0x9c9cce)
XYChart c = new XYChart(180, 180, 0x9c9cce);
// Add titles to the top and bottom of the chart using 7.5pt Arial font. The text is white
// 0xffffff on a deep blue 0x31319C background.
c.addTitle2(Chart.Top, "STAR TECH INDEX 2003-01-28", "Arial", 7.5, 0xffffff, 0x31319c);
c.addTitle2(Chart.Bottom, "LATEST STI:1809.41 (+14.51)", "Arial", 7.5, 0xffffff, 0x31319c);
// Set the plotarea at (31, 21) and of size 145 x 124 pixels, with a pale yellow (0xffffc8)
// background.
c.setPlotArea(31, 21, 145, 124, 0xffffc8);
// Add custom text at (176, 21) (top right corner of plotarea) using 11pt Times Bold Italic
// font/red (0xc09090) color
c.addText(176, 21, "Chart Demo", "Times New Roman Bold Italic", 11, 0xc09090).setAlignment(
Chart.TopRight);
// Use 7.5pt Arial as the y axis label font
c.yAxis().setLabelStyle("", 7.5);
// Set the labels on the x axis by spreading the labels evenly between the first point (index
// = 0) and the last point (index = noOfPoints - 1)
c.xAxis().setLinearScale(0, noOfPoints - 1, labels);
// Use 7.5pt Arial as the x axis label font
c.xAxis().setLabelStyle("", 7.5);
// Add a deep blue (0x000080) line layer to the chart
c.addLineLayer(data, 0x000080);
// Output the chart
viewer.Image = c.makeWebImage(Chart.PNG);
// Include tool tip for the chart. The chart starts at 9:30am and each point spans 240
// seconds, so we can compute the time as {x}*240+9.5*3600.
viewer.ImageMap = c.getHTMLImageMap("", "", "title='{={x}*240+9.5*3600|h:nna}: {value|2}'");
}
private void FrmTrackFinance_Load(object sender, EventArgs e)
{
// Create a finance chart demo containing 100 days of data
int noOfDays = 100;
// To compute moving averages starting from the first day, we need to get extra data points before
// the first day
int extraDays = 30;
// In this exammple, we use a random number generator utility to simulate the data. We set up the
// random table to create 6 cols x (noOfDays + extraDays) rows, using 9 as the seed.
RanTable rantable = new RanTable(9, 6, noOfDays + extraDays);
// Set the 1st col to be the timeStamp, starting from Sep 4, 2011, with each row representing one
// day, and counting week days only (jump over Sat and Sun)
rantable.setDateCol(0, new DateTime(2011, 9, 4), 86400, true);
// Set the 2nd, 3rd, 4th and 5th columns to be high, low, open and close data. The open value
// starts from 100, and the daily change is random from -5 to 5.
rantable.setHLOCCols(1, 100, -5, 5);
// Set the 6th column as the vol data from 5 to 25 million
rantable.setCol(5, 50000000, 250000000);
// Now we read the data from the table into arrays
double[] timeStamps = rantable.getCol(0);
double[] highData = rantable.getCol(1);
double[] lowData = rantable.getCol(2);
double[] openData = rantable.getCol(3);
double[] closeData = rantable.getCol(4);
double[] volData = rantable.getCol(5);
// Create a FinanceChart object of width 720 pixels
FinanceChart c = new FinanceChart(720);
// Add a title to the chart
c.addTitle("Finance Chart Demonstration");
// Disable default legend box, as we are using dynamic legend
c.setLegendStyle("normal", 8, Chart.Transparent, Chart.Transparent);
// Set the data into the finance chart object
c.setData(timeStamps, highData, lowData, openData, closeData, volData, extraDays);
// Add the main chart with 240 pixels in height
c.addMainChart(240);
// Add a 10 period simple moving average to the main chart, using brown color
c.addSimpleMovingAvg(10, 0x663300);
// Add a 20 period simple moving average to the main chart, using purple color
c.addSimpleMovingAvg(20, 0x9900ff);
// Add candlestick symbols to the main chart, using green/red for up/down days
c.addCandleStick(0x00ff00, 0xff0000);
// Add 20 days bollinger band to the main chart, using light blue (9999ff) as the border and
// semi-transparent blue (c06666ff) as the fill color
c.addBollingerBand(20, 2, 0x9999ff, unchecked ((int)0xc06666ff));
// Add a 75 pixels volume bars sub-chart to the bottom of the main chart, using green/red/grey for
// up/down/flat days
c.addVolBars(75, 0x99ff99, 0xff9999, 0x808080);
// Append a 14-days RSI indicator chart (75 pixels high) after the main chart. The main RSI line
// is purple (800080). Set threshold region to +/- 20 (that is, RSI = 50 +/- 25). The upper/lower
// threshold regions will be filled with red (ff0000)/blue (0000ff).
c.addRSI(75, 14, 0x800080, 20, 0xff0000, 0x0000ff);
// Append a MACD(26, 12) indicator chart (75 pixels high) after the main chart, using 9 days for
// computing divergence.
c.addMACD(75, 26, 12, 9, 0x0000ff, 0xff00ff, 0x008000);
// Include track line with legend for the latest data values
trackFinance(c, ((XYChart)c.getChart(0)).getPlotArea().getRightX());
// Assign the chart to the WinChartViewer
winChartViewer1.Chart = c;
}
private void drawFullChart(RazorViewPortControl vp, RazorChartViewer viewer)
{
// We need to draw a small thumbnail chart for the full data range. The simplest method is to
// simply get the full data to draw the chart. If the full data are very large (eg. millions
// of points), for such a small thumbnail chart, it is often acceptable to just retreive a
// small sample of the data.
//
// In this example, there are only around 5500 points for the 3 data series. This amount is
// not large to ChartDirector, so we simply pass all the data to ChartDirector.
RanTable r = getRandomTable();
// Get all the data from the random table
DateTime[] timeStamps = Chart.NTime(r.getCol(0));
double[] dataSeriesA = r.getCol(1);
double[] dataSeriesB = r.getCol(2);
double[] dataSeriesC = r.getCol(3);
// Create an XYChart object of size 640 x 60 pixels
XYChart c = new XYChart(640, 60);
// Set the plotarea with the same horizontal position as that in the main chart for
// alignment. The vertical position is set to equal to the chart height.
c.setPlotArea(55, 0, c.getWidth() - 80, c.getHeight() - 1, 0xc0d8ff, -1, 0x888888,
Chart.Transparent, 0xffffff);
// Set the x axis stem to transparent and the label font to 10pt Arial
c.xAxis().setColors(Chart.Transparent);
c.xAxis().setLabelStyle("Arial", 10);
// Put the x-axis labels inside the plot area by setting a negative label gap. Use
// setLabelAlignment to put the label at the right side of the tick.
c.xAxis().setLabelGap(-1);
c.xAxis().setLabelAlignment(1);
// Set the y axis stem and labels to transparent (that is, hide the labels)
c.yAxis().setColors(Chart.Transparent, Chart.Transparent);
// Add a line layer for the lines with fast line mode enabled
LineLayer layer = c.addLineLayer2();
layer.setFastLineMode();
// Now we add the 3 data series to a line layer, using the color red (0xff3333), green
// (0x008800) and blue (0x3333cc)
layer.setXData(timeStamps);
layer.addDataSet(dataSeriesA, 0xff3333);
layer.addDataSet(dataSeriesB, 0x008800);
layer.addDataSet(dataSeriesC, 0x3333cc);
// The x axis scales should reflect the full range of the view port
c.xAxis().setDateScale(viewer.getValueAtViewPort("x", 0), viewer.getValueAtViewPort("x", 1));
// For the automatic x-axis labels, set the minimum spacing to 75 pixels.
c.xAxis().setTickDensity(75);
// For the auto-scaled y-axis, as we hide the labels, we can disable axis rounding. This can
// make the axis scale fit the data tighter.
c.yAxis().setRounding(false, false);
// Output the chart
vp.Image = c.makeWebImage(Chart.PNG);
}
//
// Draw the chart
//
private void drawChart(RazorChartViewer viewer)
{
// Determine the visible x-axis range
DateTime viewPortStartDate = Chart.NTime(viewer.getValueAtViewPort("x", viewer.ViewPortLeft))
;
DateTime viewPortEndDate = Chart.NTime(viewer.getValueAtViewPort("x", viewer.ViewPortLeft +
viewer.ViewPortWidth));
// We need to get the data within the visible x-axis range. In real code, this can be by
// using a database query or some other means as specific to the application. In this demo,
// we just generate a random data table, and then select the data within the table.
RanTable r = getRandomTable();
// Select the data for the visible date range viewPortStartDate to viewPortEndDate. It is
// possible there is no data point at exactly viewPortStartDate or viewPortEndDate. In this
// case, we also need the data points that are just outside the visible date range to
// "overdraw" the line a little bit (the "overdrawn" part will be clipped to the plot area)
// In this demo, we do this by adding a one day margin to the date range when selecting the
// data.
r.selectDate(0, viewPortStartDate.AddDays(-1), viewPortEndDate.AddDays(1));
// The selected data from the random data table
DateTime[] timeStamps = Chart.NTime(r.getCol(0));
double[] dataSeriesA = r.getCol(1);
double[] dataSeriesB = r.getCol(2);
double[] dataSeriesC = r.getCol(3);
//
// Now we have obtained the data, we can plot the chart.
//
//================================================================================
// Configure overall chart appearance.
//================================================================================
// Create an XYChart object 600 x 300 pixels in size, with pale blue (f0f0ff) background,
// black (000000) rounded border, 1 pixel raised effect.
XYChart c = new XYChart(600, 300, 0xf0f0ff, 0x000000);
c.setRoundedFrame();
// Set the plotarea at (52, 60) and of size 520 x 205 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, 60, 520, 205, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);
// As the data can lie outside the plotarea in a zoomed chart, we need to enable clipping.
c.setClipping();
// Add a top title to the chart using 15pt Times New Roman Bold Italic font, with a light
// blue (ccccff) background, black (000000) border, and a glass like raised effect.
c.addTitle("Product Line International Market Price", "Times New Roman Bold Italic", 15
).setBackground(0xccccff, 0x000000, Chart.glassEffect());
// Add a legend box at the top of the plot area with 9pt Arial Bold font with flow layout.
c.addLegend(50, 33, false, "Arial Bold", 9).setBackground(Chart.Transparent,
Chart.Transparent);
// Set axes width to 2 pixels
c.xAxis().setWidth(2);
c.yAxis().setWidth(2);
// Add a title to the y-axis
c.yAxis().setTitle("Price (USD)", "Arial Bold", 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.addLineLayer2();
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(timeStamps);
layer.addDataSet(dataSeriesA, 0xff0000, "Product Alpha");
layer.addDataSet(dataSeriesB, 0x00cc00, "Product Beta");
layer.addDataSet(dataSeriesC, 0x0000ff, "Product 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, we rely on ChartDirector to auto-label the axis. We ask ChartDirector to
// ensure the x-axis labels are at least 75 pixels apart to avoid too many labels.
c.xAxis().setTickDensity(75);
//================================================================================
// Output the chart
//================================================================================
// Output the chart
viewer.Image = c.makeWebImage(Chart.PNG);
// Include tool tip for the chart
viewer.ImageMap = c.getHTMLImageMap("", "",
"title='[{dataSetName}] {x|mmm dd, yyyy}: USD {value|2}'");
}
