private void ShowLowerXErrorCheckBox_Checked(object sender, System.Windows.RoutedEventArgs e)
{
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series[0];
series.ShowLowerErrorX = (bool)ShowLowerXErrorCheckBox.IsChecked;
nChartControl1.Refresh();
}
private void GenerateData(NErrorBarSeries series)
{
series.ClearDataPoints();
NVector3DF v = new NVector3DF();
Random randrom = new Random();
for (int i = 0; i < 10; i++)
{
v.X = (float)(0.5 - randrom.NextDouble());
v.Y = (float)(0.5 - randrom.NextDouble());
v.Z = (float)(0.5 - randrom.NextDouble());
v.Normalize(40.0f);
series.Values.Add(v.X);
series.XValues.Add(v.Y);
series.ZValues.Add(v.Z);
series.LowerErrorsX.Add(3 + 5 * randrom.NextDouble());
series.UpperErrorsX.Add(3 + 5 * randrom.NextDouble());
series.LowerErrorsY.Add(3 + 5 * randrom.NextDouble());
series.UpperErrorsY.Add(3 + 5 * randrom.NextDouble());
series.LowerErrorsZ.Add(3 + 5 * randrom.NextDouble());
series.UpperErrorsZ.Add(3 + 5 * randrom.NextDouble());
}
}
private void GenerateDataButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series[0];
GenerateData(series);
nChartControl1.Refresh();
}
private void ZErrorSizeScroll_ValueChanged(object sender, Nevron.UI.WinForm.Controls.ScrollBarEventArgs e)
{
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series[0];
series.SizeZ = new NLength(ZErrorSizeScroll.Value / 20.0f, NRelativeUnit.ParentPercentage);
nChartControl1.Refresh();
}
private void ShowLowerErrorZCheck_CheckedChanged(object sender, System.EventArgs e)
{
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series[0];
series.ShowLowerErrorZ = ShowLowerErrorZCheck.Checked;
nChartControl1.Refresh();
}
private void XErrorWhiskerSizeScrollBar_ValueChanged(object sender, System.Windows.RoutedPropertyChangedEventArgs <double> e)
{
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series[0];
series.SizeX = new NLength((float)XErrorWhiskerSizeScrollBar.Value * 5.0f, NRelativeUnit.ParentPercentage);
nChartControl1.Refresh();
}
public override void Initialize()
{
base.Initialize();
// set a chart title
NLabel title = nChartControl1.Labels.AddHeader("Error Bar Chart");
title.TextStyle.FontStyle = new NFontStyle("Times New Roman", 18, FontStyle.Italic);
title.TextStyle.FillStyle = new NColorFillStyle(GreyBlue);
// remove the legend
nChartControl1.Legends.Clear();
// setup chart
m_Chart = nChartControl1.Charts[0];
m_Chart.Axis(StandardAxis.Depth).Visible = false;
NLinearScaleConfigurator linearScale = m_Chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator as NLinearScaleConfigurator;
// add interlace stripe
NScaleStripStyle stripStyle = new NScaleStripStyle(new NColorFillStyle(Color.Beige), null, true, 0, 0, 1, 1);
stripStyle.Interlaced = true;
stripStyle.SetShowAtWall(ChartWallType.Back, true);
stripStyle.SetShowAtWall(ChartWallType.Left, true);
linearScale.StripStyles.Add(stripStyle);
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series.Add(SeriesType.ErrorBar);
series.DataLabelStyle.Visible = false;
series.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Visible = true;
series.MarkerStyle.AutoDepth = false;
series.MarkerStyle.FillStyle = new NColorFillStyle(DarkOrange);
series.MarkerStyle.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Width = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Height = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Depth = new NLength(1.2f, NRelativeUnit.ParentPercentage);
GenerateData(series);
// apply layout
ConfigureStandardLayout(m_Chart, title, null);
// init form controls
YErrorSizeScroll.Value = 40;
ShowLowerErrorCheck.Checked = true;
ShowUpperErrorCheck.Checked = true;
RoundToTickCheck.Checked = true;
InflateMarginsCheck.Checked = true;
}
private void GenerateData(NErrorBarSeries series)
{
series.ClearDataPoints();
double y = 20.0;
double p = Random.NextDouble() * 10;
for (int i = 0; i < 15; i++)
{
y = Math.Sin(p + i / 6.0) * 8 + Random.NextDouble();
series.Values.Add(y);
series.LowerErrorsY.Add(1 + Random.NextDouble());
series.UpperErrorsY.Add(1 + Random.NextDouble());
}
}
void GenerateData(NErrorBarSeries series)
{
series.ClearDataPoints();
double y;
double x = 50.0;
for (int i = 0; i < 15; i++)
{
y = 20 + Random.NextDouble() * 30;
x += 2.0 + Random.NextDouble() * 2;
series.Values.Add(y);
series.LowerErrorsY.Add(1 + Random.NextDouble());
series.UpperErrorsY.Add(1 + Random.NextDouble());
series.XValues.Add(x);
series.LowerErrorsX.Add(1 + Random.NextDouble());
series.UpperErrorsX.Add(1 + Random.NextDouble());
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
protected override NWidget CreateExampleContent()
{
NChartView chartView = CreateCartesianChartView();
// configure title
chartView.Surface.Titles[0].Text = "Standard Error Bar";
// configure chart
NCartesianChart chart = (NCartesianChart)chartView.Surface.Charts[0];
chart.SetPredefinedCartesianAxes(ENPredefinedCartesianAxis.XYLinear);
// add interlace stripe
NScaleStrip stripStyle = new NScaleStrip(new NColorFill(NColor.Beige), null, true, 0, 0, 1, 1);
stripStyle.Interlaced = true;
chart.Axes[ENCartesianAxis.PrimaryY].Scale.Strips.Add(stripStyle);
chart.Axes[ENCartesianAxis.PrimaryY].Scale.MajorGridLines.Visible = true;
chart.Axes[ENCartesianAxis.PrimaryY].Scale.ViewRangeInflateMode = ENScaleViewRangeInflateMode.MajorTick;
chart.Axes[ENCartesianAxis.PrimaryY].Scale.InflateViewRangeBegin = true;
chart.Axes[ENCartesianAxis.PrimaryY].Scale.InflateViewRangeEnd = true;
chart.Axes[ENCartesianAxis.PrimaryX].Scale.ViewRangeInflateMode = ENScaleViewRangeInflateMode.MajorTick;
chart.Axes[ENCartesianAxis.PrimaryX].Scale.InflateViewRangeBegin = true;
chart.Axes[ENCartesianAxis.PrimaryX].Scale.InflateViewRangeEnd = true;
// add an error bar series
m_ErrorBar = new NErrorBarSeries();
chart.Series.Add(m_ErrorBar);
m_ErrorBar.DataLabelStyle = new NDataLabelStyle(false);
m_ErrorBar.Stroke = new NStroke(NColor.Black);
m_ErrorBar.UseXValues = true;
GenerateData();
chartView.Document.StyleSheets.ApplyTheme(new NChartTheme(ENChartPalette.Bright, false));
return(chartView);
}
protected void Page_Load(object sender, System.EventArgs e)
{
nChartControl1.BackgroundStyle.FrameStyle.Visible = false;
// set a chart title
NLabel title = nChartControl1.Labels.AddHeader("XYZ Error Bar");
title.TextStyle.FontStyle = new NFontStyle("Times New Roman", 14, FontStyle.Italic);
title.TextStyle.ShadowStyle.Type = ShadowType.LinearBlur;
// no legend
nChartControl1.Legends.Clear();
// setup chart
NChart chart = nChartControl1.Charts[0];
chart.Enable3D = true;
chart.Depth = 55.0f;
chart.Width = 55.0f;
chart.Height = 55.0f;
chart.Projection.SetPredefinedProjection(PredefinedProjection.PerspectiveTilted);
chart.LightModel.SetPredefinedLightModel(PredefinedLightModel.GlitterLeft);
// setup Y axis
NLinearScaleConfigurator linearScaleConfigurator = (NLinearScaleConfigurator)chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator;
linearScaleConfigurator.RoundToTickMin = RoundToTickCheck.Checked;
linearScaleConfigurator.RoundToTickMax = RoundToTickCheck.Checked;
linearScaleConfigurator.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
linearScaleConfigurator.LabelStyle.TextStyle.FontStyle = new NFontStyle("Arial", 8);
// add interlaced stripe
NScaleStripStyle stripStyle = new NScaleStripStyle(new NColorFillStyle(Color.Beige), null, true, 0, 0, 1, 1);
stripStyle.Interlaced = true;
stripStyle.SetShowAtWall(ChartWallType.Back, true);
stripStyle.SetShowAtWall(ChartWallType.Left, true);
linearScaleConfigurator.StripStyles.Add(stripStyle);
// setup X axis
linearScaleConfigurator = new NLinearScaleConfigurator();
linearScaleConfigurator.RoundToTickMin = RoundToTickCheck.Checked;
linearScaleConfigurator.RoundToTickMax = RoundToTickCheck.Checked;
linearScaleConfigurator.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
linearScaleConfigurator.LabelStyle.TextStyle.FontStyle = new NFontStyle("Arial", 8);
linearScaleConfigurator.MajorGridStyle.ShowAtWalls = new ChartWallType[] { ChartWallType.Back, ChartWallType.Floor };
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = linearScaleConfigurator;
// setup Z axis
linearScaleConfigurator = new NLinearScaleConfigurator();
linearScaleConfigurator.RoundToTickMin = RoundToTickCheck.Checked;
linearScaleConfigurator.RoundToTickMax = RoundToTickCheck.Checked;
linearScaleConfigurator.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
linearScaleConfigurator.LabelStyle.TextStyle.FontStyle = new NFontStyle("Arial", 8);
linearScaleConfigurator.MajorGridStyle.ShowAtWalls = new ChartWallType[] { ChartWallType.Left, ChartWallType.Floor };
chart.Axis(StandardAxis.Depth).ScaleConfigurator = linearScaleConfigurator;
// add an error bar series
NErrorBarSeries series = (NErrorBarSeries)chart.Series.Add(SeriesType.ErrorBar);
series.DataLabelStyle.Visible = false;
series.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Visible = true;
series.MarkerStyle.AutoDepth = false;
series.MarkerStyle.FillStyle = new NColorFillStyle(DarkOrange);
series.MarkerStyle.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Width = new NLength(1.5f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Height = new NLength(1.5f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Depth = new NLength(1.5f, NRelativeUnit.ParentPercentage);
series.UseXValues = true;
series.UseZValues = true;
GenerateData(series);
// apply layout
ApplyLayoutTemplate(0, nChartControl1, chart, title, null);
if (!IsPostBack)
{
ShowUpperXErrorCheck.Checked = series.ShowUpperErrorX;
ShowLowerXErrorCheck.Checked = series.ShowLowerErrorX;
ShowUpperYErrorCheck.Checked = series.ShowUpperErrorY;
ShowLowerYErrorCheck.Checked = series.ShowLowerErrorY;
ShowUpperZErrorCheck.Checked = series.ShowUpperErrorZ;
ShowLowerZErrorCheck.Checked = series.ShowLowerErrorZ;
InflateMarginsCheck.Checked = series.InflateMargins;
}
else
{
series.ShowUpperErrorX = ShowUpperXErrorCheck.Checked;
series.ShowLowerErrorX = ShowLowerXErrorCheck.Checked;
series.ShowUpperErrorY = ShowUpperYErrorCheck.Checked;
series.ShowLowerErrorY = ShowLowerYErrorCheck.Checked;
series.ShowUpperErrorZ = ShowUpperZErrorCheck.Checked;
series.ShowLowerErrorZ = ShowLowerZErrorCheck.Checked;
series.InflateMargins = InflateMarginsCheck.Checked;
}
}
/// <summary>
/// Called to initialize the example
/// </summary>
/// <param name="chartControl"></param>
public override void Create()
{
// set a chart title
NLabel title = nChartControl1.Labels.AddHeader("XY Error Bar");
title.TextStyle.FontStyle = new NFontStyle("Times New Roman", 18, System.Drawing.FontStyle.Italic);
title.TextStyle.FillStyle = new NColorFillStyle(GreyBlue);
// remove the legend
nChartControl1.Legends.Clear();
m_Chart = nChartControl1.Charts[0];
// setup axes
NLinearScaleConfigurator linearScale = new NLinearScaleConfigurator();
linearScale.MajorGridStyle.ShowAtWalls = new ChartWallType[] { ChartWallType.Back, ChartWallType.Floor };
linearScale.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
m_Chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = linearScale;
linearScale = (NLinearScaleConfigurator)m_Chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator;
linearScale.MajorGridStyle.ShowAtWalls = new ChartWallType[] { ChartWallType.Back, ChartWallType.Left };
linearScale.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
// add interlace stripe
NScaleStripStyle stripStyle = new NScaleStripStyle(new NColorFillStyle(Color.Beige), null, true, 0, 0, 1, 1);
stripStyle.Interlaced = true;
stripStyle.SetShowAtWall(ChartWallType.Back, true);
stripStyle.SetShowAtWall(ChartWallType.Left, true);
linearScale.StripStyles.Add(stripStyle);
m_Chart.Axis(StandardAxis.Depth).Visible = false;
// add an error bar series
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series.Add(SeriesType.ErrorBar);
series.DataLabelStyle.Visible = false;
series.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Visible = true;
series.MarkerStyle.PointShape = PointShape.Ellipse;
series.MarkerStyle.AutoDepth = false;
series.MarkerStyle.FillStyle = new NColorFillStyle(DarkOrange);
series.MarkerStyle.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Width = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Height = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Depth = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.ShowLowerErrorX = true;
series.ShowUpperErrorX = true;
series.UseXValues = true;
GenerateData(series);
// apply layout
ConfigureStandardLayout(m_Chart, title, null);
// init form controls
YErrorWhiskerSizeScrollBar.Value = series.SizeY.Value / 5.0f;
ShowLowerYErrorCheckBox.IsChecked = series.ShowLowerErrorY;
ShowUpperYErrorCheckBox.IsChecked = series.ShowUpperErrorY;
XErrorWhiskerSizeScrollBar.Value = series.SizeX.Value / 5.0f;
ShowLowerXErrorCheckBox.IsChecked = series.ShowLowerErrorX;
ShowUpperXErrorCheckBox.IsChecked = series.ShowUpperErrorX;
LeftAxisRoundToTickCheckBox.IsChecked = true;
InflateMarginsCheckBox.IsChecked = true;
}
private void ChartTypeComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
NChart chart = nChartControl1.Charts[0];
chart.Series.Clear();
const int numDataPoints = 50;
switch (ChartTypeComboBox.SelectedIndex)
{
case 0: // Area
{
NAreaSeries area = new NAreaSeries();
area.DataLabelStyle.Visible = false;
area.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
GenerateData(area, 100.0, numDataPoints, new NRange1DD(60, 140));
chart.Series.Add(area);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NValueTimelineScaleConfigurator();
}
break;
case 1: // Bar
{
NBarSeries bar = new NBarSeries();
bar.DataLabelStyle.Visible = false;
bar.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
GenerateData(bar, 100.0, numDataPoints, new NRange1DD(60, 140));
chart.Series.Add(bar);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NValueTimelineScaleConfigurator();
}
break;
case 2: // Box And Whiskers
{
NBoxAndWhiskersSeries boxAndWhiskers = new NBoxAndWhiskersSeries();
boxAndWhiskers.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
for (int i = 0; i < 40; i++)
{
double boxLower = 1000 + Random.NextDouble() * 200;
double boxUpper = boxLower + 200 + Random.NextDouble() * 200;
double whiskersLower = boxLower - (20 + Random.NextDouble() * 300);
double whiskersUpper = boxUpper + (20 + Random.NextDouble() * 300);
double IQR = (boxUpper - boxLower);
double median = boxLower + IQR * 0.25 + Random.NextDouble() * IQR * 0.5;
double average = boxLower + IQR * 0.25 + Random.NextDouble() * IQR * 0.5;
boxAndWhiskers.UpperBoxValues.Add(boxUpper);
boxAndWhiskers.LowerBoxValues.Add(boxLower);
boxAndWhiskers.UpperWhiskerValues.Add(whiskersUpper);
boxAndWhiskers.LowerWhiskerValues.Add(whiskersLower);
boxAndWhiskers.MedianValues.Add(median);
boxAndWhiskers.AverageValues.Add(average);
int outliersCount = Random.Next(5);
NDoubleList outliers = new NDoubleList();
for (int k = 0; k < outliersCount; k++)
{
double dOutlier = 0;
if (Random.NextDouble() > 0.5)
{
dOutlier = boxUpper + IQR * 1.5 + Random.NextDouble() * 100;
}
else
{
dOutlier = boxLower - IQR * 1.5 - Random.NextDouble() * 100;
}
outliers.Add(dOutlier);
}
boxAndWhiskers.OutlierValues.Add(outliers);
}
chart.Series.Add(boxAndWhiskers);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NLinearScaleConfigurator();
}
break;
case 3: // Error Bar
{
NErrorBarSeries errorBar = new NErrorBarSeries();
errorBar.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
double y;
double x = 50.0;
for (int i = 0; i < 50; i++)
{
y = 20 + Random.NextDouble() * 30;
x += 2.0 + Random.NextDouble() * 2;
errorBar.Values.Add(y);
errorBar.LowerErrorsY.Add(1 + Random.NextDouble());
errorBar.UpperErrorsY.Add(1 + Random.NextDouble());
errorBar.XValues.Add(x);
errorBar.LowerErrorsX.Add(1 + Random.NextDouble());
errorBar.UpperErrorsX.Add(1 + Random.NextDouble());
}
chart.Series.Add(errorBar);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NLinearScaleConfigurator();
}
break;
case 4: // "Float Bar");
{
NFloatBarSeries floatBar = new NFloatBarSeries();
floatBar.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
// generate Y values
for (int i = 0; i < 100; i++)
{
double dBeginValue = Random.NextDouble() * 5;
double dEndValue = dBeginValue + 2 + Random.NextDouble();
floatBar.Values.Add(dBeginValue);
floatBar.EndValues.Add(dEndValue);
}
// generate X values
DateTime dt = new DateTime(2007, 5, 24, 11, 0, 0);
for (int i = 0; i < 100; i++)
{
dt = dt.AddHours(12 + Random.NextDouble() * 60);
floatBar.XValues.Add(dt);
}
chart.Series.Add(floatBar);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NValueTimelineScaleConfigurator();
}
break;
case 5: // Line
{
NLineSeries line = new NLineSeries();
line.DataLabelStyle.Visible = false;
line.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
GenerateData(line, 100.0, numDataPoints, new NRange1DD(60, 140));
chart.Series.Add(line);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NValueTimelineScaleConfigurator();
}
break;
case 6: // Point
{
NPointSeries point = new NPointSeries();
point.DataLabelStyle.Visible = false;
point.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
point.Size = new NLength(5);
GenerateData(point, 100.0, numDataPoints, new NRange1DD(60, 140));
chart.Series.Add(point);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NLinearScaleConfigurator();
}
break;
case 7: // Stock
{
// setup stock series
NStockSeries stock = (NStockSeries)chart.Series.Add(SeriesType.Stock);
stock.DataLabelStyle.Visible = false;
stock.UpFillStyle = new NColorFillStyle(Color.White);
stock.UpStrokeStyle.Color = Color.Black;
stock.DownFillStyle = new NColorFillStyle(Color.Crimson);
stock.DownStrokeStyle.Color = Color.Crimson;
stock.HighLowStrokeStyle.Color = Color.Black;
stock.CandleWidth = new NLength(1.2f, NRelativeUnit.ParentPercentage);
stock.UseXValues = true;
stock.InflateMargins = true;
stock.VerticalAxisRangeMode = AxisRangeMode.ViewRange;
// add some stock items
GenerateOHLCData(stock, 100.0, numDataPoints, new NRange1DD(60, 140));
FillStockDates(stock, numDataPoints);
chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = new NValueTimelineScaleConfigurator();
}
break;
}
nChartControl1.Refresh();
}
/// <summary>
/// Called to initialize the example
/// </summary>
/// <param name="chartControl"></param>
public override void Create()
{
// set a chart title
NLabel title = nChartControl1.Labels.AddHeader("XYZ Error Bar");
title.TextStyle.FontStyle = new NFontStyle("Times New Roman", 18, System.Drawing.FontStyle.Italic);
title.TextStyle.FillStyle = new NColorFillStyle(GreyBlue);
// remove the legend
nChartControl1.Legends.Clear();
// setup chart
m_Chart = nChartControl1.Charts[0];
m_Chart.Enable3D = true;
m_Chart.Projection.SetPredefinedProjection(PredefinedProjection.PerspectiveTilted);
m_Chart.LightModel.SetPredefinedLightModel(PredefinedLightModel.GlitterLeft);
m_Chart.BoundsMode = BoundsMode.Fit;
m_Chart.ContentAlignment = ContentAlignment.BottomRight;
m_Chart.Location = new NPointL(new NLength(8, NRelativeUnit.ParentPercentage), new NLength(8, NRelativeUnit.ParentPercentage));
m_Chart.Size = new NSizeL(new NLength(84, NRelativeUnit.ParentPercentage), new NLength(84, NRelativeUnit.ParentPercentage));
m_Chart.Depth = 55.0f;
m_Chart.Width = 55.0f;
m_Chart.Height = 55.0f;
// setup the x axis
NLinearScaleConfigurator linearScale = new NLinearScaleConfigurator();
m_Chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = linearScale;
linearScale.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Back, true);
linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Floor, true);
// setup the y axis
linearScale = new NLinearScaleConfigurator();
m_Chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator = linearScale;
linearScale.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Left, true);
linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Back, true);
// add interlace stripe
NScaleStripStyle stripStyle = new NScaleStripStyle(new NColorFillStyle(Color.Beige), null, true, 0, 0, 1, 1);
stripStyle.Interlaced = true;
stripStyle.SetShowAtWall(ChartWallType.Back, true);
stripStyle.SetShowAtWall(ChartWallType.Left, true);
linearScale.StripStyles.Add(stripStyle);
// setup the z axis
linearScale = new NLinearScaleConfigurator();
m_Chart.Axis(StandardAxis.Depth).ScaleConfigurator = linearScale;
linearScale.MajorGridStyle.LineStyle.Pattern = LinePattern.Dot;
linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Floor, true);
linearScale.MajorGridStyle.SetShowAtWall(ChartWallType.Left, true);
// add an error bar series
NErrorBarSeries series = (NErrorBarSeries)m_Chart.Series.Add(SeriesType.ErrorBar);
series.DataLabelStyle.Visible = false;
series.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Visible = true;
series.MarkerStyle.AutoDepth = false;
series.MarkerStyle.FillStyle = new NColorFillStyle(DarkOrange);
series.MarkerStyle.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Width = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Height = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Depth = new NLength(1.2f, NRelativeUnit.ParentPercentage);
series.UseXValues = true;
series.UseZValues = true;
series.ShowLowerErrorX = true;
series.ShowLowerErrorY = true;
series.ShowLowerErrorZ = true;
series.ShowUpperErrorX = true;
series.ShowUpperErrorY = true;
series.ShowUpperErrorZ = true;
GenerateData(series);
nChartControl1.Controller.Tools.Add(new NPanelSelectorTool());
nChartControl1.Controller.Tools.Add(new NTrackballTool());
// apply layout
ConfigureStandardLayout(m_Chart, title, null);
}
/// <summary>
/// Demonstrates linear reression in two dimensions.
/// </summary>
void LinearRegression()
{
// Set up example description
nRichDescription.Text = "A linear regression model is computed from the sample data containing random normal noise. \n\nA point is then predicted from the model with a 95% confidence interval - meaning the predicted point is expected to lie within the confidence interval 95% of the time.";
// First read in the independent (or predictor) values. This is a matrix
// with one column and a row for each amounts measurement.
DoubleVector raw_data = new DoubleVector(25, 0, 1);
DoubleMatrix measurements = new DoubleMatrix(raw_data);
// Next, read in the responses
// Build a linear polynomial and add noise for interest
RandomNumberGenerator rand = new RandGenNormal(0, noiselevel_);
Polynomial poly = new Polynomial(new DoubleVector("0, 1"));
DoubleVector responses = poly.Evaluate(raw_data) + new DoubleVector(raw_data.Length, rand); ;
// Construct a linear regression. If we want our regression to calculate a
// y-intercept we must send in true for the "addIntercept" parameter (the
// third paramameter in the constructor).
LinearRegression regression = new LinearRegression(measurements, responses, true);
DoubleVector residues = regression.Residuals;
// Use the linear regression class to make a prediction according to the model
DoubleVector xvalues = new DoubleVector("30"); // Use the model to predict the observation at 30.
Interval pi = regression.PredictionInterval(xvalues, 0.95);
// Build some data points along the regression line for display
DoubleMatrix abcissae = new DoubleMatrix(new DoubleVector(raw_data));
DoubleVector predicted_ys = regression.PredictedObservations(abcissae);
// Build the chart
SetupChartLayout("Linear Regression");
NChart chart = nChartControl1.Charts[0];
SetupChartAxes(chart);
// Set up the line series
NLineSeries line = new NLineSeries();
chart.Series.Add(line);
// tell the series to regard the X values
line.UseXValues = true;
// no data labels
line.DataLabelStyle.Visible = false;
// Set the line color
line.BorderStyle = new NStrokeStyle(2.0f, Color.Tomato);
// name data set
line.Name = "Linear Regression";
// Add the the Linear Regression line data to the line series
line.XValues.AddRange(abcissae.DataBlock.Data);
line.Values.AddRange(predicted_ys.DataBlock.Data);
// Draw the raw data points
NPointSeries point = new NPointSeries();
chart.Series.Add(point);
point.UseXValues = true;
point.DataLabelStyle.Visible = false;
// Set the point appearance properties
point.FillStyle = new NColorFillStyle(Color.SkyBlue);
point.BorderStyle = new NStrokeStyle(1.0f,Color.DarkGray);
point.PointShape = PointShape.Cross;
point.Size = new NLength(6.0f);
// Points must fit in the chart area
point.InflateMargins = true;
// Name point set
point.Name = "Observations";
// set the point data
point.Values.AddRange(responses.DataBlock.Data);
point.XValues.AddRange(measurements.DataBlock.Data);
double m = (pi.Min + pi.Max) / 2.0;
// Display the predicted value with an error bar series
NErrorBarSeries predicted_points = new NErrorBarSeries();
chart.Series.Add(predicted_points);
predicted_points.Name = "Predicted Point";
predicted_points.UseXValues = true;
predicted_points.InflateMargins = true;
predicted_points.FillStyle = new NColorFillStyle(Color.Crimson);
predicted_points.BorderStyle = new NStrokeStyle(1.0f, Color.DarkGray);
predicted_points.DataLabelStyle.Visible = false;
predicted_points.MarkerStyle.Visible = true;
predicted_points.MarkerStyle.FillStyle = new NColorFillStyle(Color.Crimson);
predicted_points.MarkerStyle.BorderStyle = new NStrokeStyle(1.0f, Color.DarkGray);
predicted_points.MarkerStyle.PointShape = PointShape.Bar;
predicted_points.MarkerStyle.Width = new NLength(5);
predicted_points.MarkerStyle.Height = new NLength(5);
predicted_points.SizeY = new NLength(5);
// Fill the data for the predicted point
predicted_points.XValues.AddRange(xvalues.DataBlock.Data);
predicted_points.Values.Add(m);
predicted_points.UpperErrorsY.Add(pi.Max - m);
predicted_points.LowerErrorsY.Add(m - pi.Min);
// Create a label to display the predicted value
NLabel label = new NLabel();
label.BoundsMode = BoundsMode.None;
label.ContentAlignment = ContentAlignment.BottomLeft;
label.Location = new NPointL(
new NLength(87, NRelativeUnit.ParentPercentage),
new NLength(3, NRelativeUnit.ParentPercentage));
label.TextStyle.TextFormat = TextFormat.XML;
label.TextStyle.FontStyle = new NFontStyle("Arial", 9);
label.TextStyle.StringFormatStyle.HorzAlign = Nevron.HorzAlign.Right;
label.TextStyle.BackplaneStyle.Visible = true;
label.TextStyle.BackplaneStyle.FillStyle = new NGradientFillStyle(GradientStyle.Horizontal, GradientVariant.Variant1, Color.FromArgb(130, 255, 255, 255), Color.FromArgb(130, 233, 233, 255));
label.TextStyle.BackplaneStyle.Shape = BackplaneShape.SmoothEdgeRectangle;
label.TextStyle.BackplaneStyle.StandardFrameStyle.InnerBorderColor = Color.White;
label.Text = "<font color = 'crimson'>" + m.ToString("0.###") + "</font> - predicted value with 95% confidence interval";
chart.ChildPanels.Add(label);
nChartControl1.Refresh();
}
protected void Page_Load(object sender, System.EventArgs e)
{
nChartControl1.BackgroundStyle.FrameStyle.Visible = false;
// set a chart title
NLabel title = nChartControl1.Labels.AddHeader("Error Bar");
title.TextStyle.FontStyle = new NFontStyle("Times New Roman", 14, FontStyle.Italic);
title.TextStyle.ShadowStyle.Type = ShadowType.LinearBlur;
// no legend
nChartControl1.Legends.Clear();
// setup chart
NChart chart = nChartControl1.Charts[0];
chart.BoundsMode = BoundsMode.Stretch;
// add interlaced stripe
NLinearScaleConfigurator scaleY = (NLinearScaleConfigurator)chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator;
NScaleStripStyle stripStyle = new NScaleStripStyle(new NColorFillStyle(Color.Beige), null, true, 0, 0, 1, 1);
stripStyle.Interlaced = true;
stripStyle.SetShowAtWall(ChartWallType.Back, true);
stripStyle.SetShowAtWall(ChartWallType.Left, true);
scaleY.StripStyles.Add(stripStyle);
NOrdinalScaleConfigurator scaleX = (NOrdinalScaleConfigurator)chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator;
scaleX.MajorTickMode = MajorTickMode.AutoMaxCount;
// setup error bar series
NErrorBarSeries series = (NErrorBarSeries)chart.Series.Add(SeriesType.ErrorBar);
series.DataLabelStyle.Visible = false;
series.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Visible = true;
series.MarkerStyle.AutoDepth = false;
series.MarkerStyle.FillStyle = new NColorFillStyle(DarkOrange);
series.MarkerStyle.BorderStyle = new NStrokeStyle(GreyBlue);
series.MarkerStyle.Width = new NLength(1.5f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Height = new NLength(1.5f, NRelativeUnit.ParentPercentage);
series.MarkerStyle.Depth = new NLength(1.5f, NRelativeUnit.ParentPercentage);
GenerateData(series);
// apply layout
ApplyLayoutTemplate(0, nChartControl1, chart, title, null);
if (!IsPostBack)
{
ShowUpperYErrorCheck.Checked = series.ShowUpperErrorY;
ShowLowerYErrorCheck.Checked = series.ShowLowerErrorY;
InflateMarginsCheck.Checked = series.InflateMargins;
RoundToTickCheck.Checked = true;
}
else
{
series.ShowUpperErrorY = ShowUpperYErrorCheck.Checked;
series.ShowLowerErrorY = ShowLowerYErrorCheck.Checked;
series.InflateMargins = InflateMarginsCheck.Checked;
NLinearScaleConfigurator linearScale = (NLinearScaleConfigurator)chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator;
linearScale.RoundToTickMin = RoundToTickCheck.Checked;
linearScale.RoundToTickMax = RoundToTickCheck.Checked;
}
}
