internal Image BuildChart(DataView data)
{
// select chart type
ChartGroup cg = _chart.ChartGroups.Group0;
Area ca = _chart.ChartArea;
switch (_chartType.Text)
{
case "Area":
cg.ChartType = Chart2DTypeEnum.Area;
ca.Inverted = false;
ca.AxisX.AnnotationRotation = 45;
break;
case "Bar":
cg.ChartType = Chart2DTypeEnum.Bar;
ca.Inverted = true;
ca.AxisX.AnnotationRotation = 0;
break;
default:
cg.ChartType = Chart2DTypeEnum.XYPlot;
ca.Inverted = false;
ca.AxisX.AnnotationRotation = 45;
break;
}
// add data to the chart
PointF[] points = new PointF[data.Count];
for (int i = 0; i < data.Count; i++)
{
points[i].X = i;
points[i].Y = float.Parse(data[i]["ProductSales"].ToString());
}
cg.ChartData.SeriesList[0].PointData.CopyDataIn(points);
// add X labels to the chart
Axis ax = _chart.ChartArea.AxisX;
ax.ValueLabels.Clear();
for (int i = 0; i < data.Count; i++)
{
ax.ValueLabels.Add(i, data[i]["ProductName"].ToString());
}
ax.AnnoMethod = AnnotationMethodEnum.ValueLabels;
// get chart image
return(_chart.GetImage(ImageFormat.Emf));
}
private void ChartSetup()
{
// Reset the chart, position it, and appropriately anchor
c1Chart1.Reset();
c1Chart1.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Right | AnchorStyles.Left; //!!VBPassThru
// Setup the Chart appearance
Style sty = c1Chart1.Style;
sty.BackColor = Color.FromKnownColor(KnownColor.Window);
// The Chart border
Border b = sty.Border;
b.BorderStyle = BorderStyleEnum.Solid;
b.Rounding.All = 10;
b.Thickness = 3;
b.Color = Color.Black;
// Turn on tooltips
c1Chart1.ToolTip.Enabled = true;
// Generate scatter data and populate the chart.
PointF [] scatter = GenerateScatterData(100, 100f, 75f);
// Plot the data in the first ChartGroup. For scatter data, turn off the lines.
ChartDataSeries cds = c1Chart1.ChartGroups[0].ChartData.SeriesList.AddNewSeries();
cds.LineStyle.Pattern = LinePatternEnum.None;
cds.PointData.CopyDataIn(scatter);
cds.TooltipText = "({#XVAL:0.00},{#YVAL:0.00})";
// Force the chart to scale the axes right now.
c1Chart1.GetImage();
// Automatically label each of the points by its PointIndex.
cds.DataLabel.Compass = LabelCompassEnum.Auto;
cds.DataLabel.Offset = 4;
cds.DataLabel.Connected = true;
cds.DataLabel.Text = "{#IPOINT}";
cds.DataLabel.Visible = true;
// Provide Header for description
Title t = c1Chart1.Header;
t.Style.Font = new Font("Tahoma", 14);
t.Text = "Histogram/Frequency Data Measuring Distance from Crosshairs to Scatter data.";
// Provide Footer for instructions
t = c1Chart1.Footer;
Font f = new Font("Tahoma", 12);
t.AppendRtfText("Drag the ", f);
t.AppendRtfText("Red", Color.Red, f);
t.AppendRtfText(" arrows to move the crosshairs", Color.Black, f, HorizontalAlignment.Center);
// Switch over the axes to mixed label mode and add some centered
// markers to form a target.
Area carea = c1Chart1.ChartArea;
double xMarker = AddChartAxisMarker(carea.AxisX);
double yMarker = AddChartAxisMarker(carea.AxisY);
// Set the Axis Titles.
carea.AxisX.Text = "Scatter data X values / Distances from crosshair";
carea.AxisY.Text = "Scatter data Y values";
carea.AxisY2.Text = "Count of data at distance from crosshair";
}
private void button1_Click(object sender, System.EventArgs e)
{
Image img = _c1c.GetImage(ImageFormat.Emf);
CreatePdf(img);
}
private void Form1_Load(object sender, System.EventArgs e)
{
// Size the form to fit any screen
this.ClientSize = new Size(600, 400);
// Center the form
this.CenterToParent();
// Fill the form client area with the chart
c1Chart1.Dock = DockStyle.Fill;
// Get the data arrays and data.
int[] StudentScores = this.GetStudentPointTotals();
int[] StudentNumbers = (int[])Array.CreateInstance(typeof(int), StudentScores.Length);
int nStudents = StudentScores.Length;
int i;
for (i = 0; i < nStudents; i++)
{
StudentNumbers[i] = i;
}
// Get the statistics
double mean = FindMean(StudentScores);
double stddev = FindStdDev(StudentScores, mean);
// Set up the header
c1Chart1.Header.Text = "Student Scores and Grades";
c1Chart1.Header.Style.Font = new Font("Tahoma", 18, FontStyle.Bold);
// Set the background color
c1Chart1.Style.BackColor = Color.FromArgb(128, 192, 150);
// Clear the existing data
c1Chart1.ChartGroups[0].ChartData.SeriesList.Clear();
// Add the data
ChartData data = c1Chart1.ChartGroups[0].ChartData;
ChartDataSeriesCollection series = data.SeriesList;
//plot the student scores
ChartDataSeries StuSeries = series.AddNewSeries();
StuSeries.Label = "raw scores";
StuSeries.LineStyle.Pattern = LinePatternEnum.None;
StuSeries.LineStyle.Color = c1Chart1.Style.BackColor;
StuSeries.SymbolStyle.Shape = SymbolShapeEnum.Star;
StuSeries.SymbolStyle.Color = Color.DarkRed;
StuSeries.X.CopyDataIn(StudentNumbers);
StuSeries.Y.CopyDataIn(StudentScores);
StuSeries = null;
// mean + 2 s
LinePatternEnum [] LinePatterns = new LinePatternEnum[]
{
LinePatternEnum.Dash, LinePatternEnum.DashDot,
LinePatternEnum.Solid,
LinePatternEnum.DashDotDot, LinePatternEnum.Dot
};
for (i = 2; i >= -2; i--)
{
ChartDataSeries StatSeries = series.AddNewSeries();
double [] xd = new double [] { 0, nStudents };
double [] yd = new double [] { mean + i * stddev, mean + i * stddev };
StatSeries.X.CopyDataIn(xd);
StatSeries.Y.CopyDataIn(yd);
StatSeries.SymbolStyle.Shape = SymbolShapeEnum.None;
StatSeries.LineStyle.Pattern = LinePatterns[i + 2];
StatSeries.LineStyle.Color = Color.Black;
StatSeries.LineStyle.Thickness = 1;
if (i > 0)
{
StatSeries.Label = "m+" + i.ToString() + "s";
}
else if (i < 0)
{
StatSeries.Label = "m" + i.ToString() + "s";
}
else
{
StatSeries.Label = "mean";
StatSeries.LineStyle.Thickness = 2;
StatSeries.LineStyle.Pattern = LinePatternEnum.Solid;
}
}
// box the plot area
c1Chart1.ChartArea.PlotArea.Boxed = true;
// Show the legend
c1Chart1.Legend.Visible = true;
// Set the Axis titles
c1Chart1.ChartArea.AxisX.Text = "Student Number";
c1Chart1.ChartArea.AxisY.Text = "Student Accumulated Points";
// sort the student scores so they can be analyzed
Array.Sort(StudentScores);
// Define each of the letter grades
string [] GradeLetter = new String[] { "A", "B", "C", "D", "F" };
// Get the bounds of each letter grade
// At most 95% of the students will not get an A
// At most 75% of the students will not get a B or higher
// At most 25% of the students will not get a C or higher
// At most 5% of the students will not get a D or higher
int [] GradeBounds = new int[]
{
StudentScores[GetBoundingIndex(StudentScores, 0.95)],
StudentScores[GetBoundingIndex(StudentScores, 0.75)],
StudentScores[GetBoundingIndex(StudentScores, 0.25)],
StudentScores[GetBoundingIndex(StudentScores, 0.05)]
};
// get the color codes for each grade
Color [] GradeColor = new Color[]
{
Color.FromArgb(128, 128, 225), Color.FromArgb(128, 255, 128),
Color.FromArgb(255, 228, 128), Color.FromArgb(55, 228, 228),
Color.FromArgb(255, 192, 192)
};
// Add the chart labels. They will be positioned later
ChartLabels labels = c1Chart1.ChartLabels;
labels.DefaultLabelStyle.BackColor = c1Chart1.Style.BackColor;
labels.DefaultLabelStyle.Font = new Font("Courier New", 16, FontStyle.Bold);
C1.Win.C1Chart.Label lab = null;
for (i = 0; i < 5; i++)
{
lab = labels.LabelsCollection.AddNewLabel();
lab.Text = GradeLetter[i];
lab.Style.BackColor = GradeColor[i];
lab.AttachMethod = AttachMethodEnum.Coordinate;
lab.Visible = true;
}
// Below are calculations and settings that depend upon auto
// positioning of the chart. The auto positions are only
// calculated during rendering of the chart. Force the
// chart to be rendered so the chart element positions are
// calculated.
// Force calculation of chart element positions
c1Chart1.GetImage();
// Add and show the alarm zones
AlarmZonesCollection zones = c1Chart1.ChartArea.PlotArea.AlarmZones;
for (i = 0; i < 5; i++)
{
AlarmZone zone = zones.AddNewZone();
zone.Name = GradeLetter[i];
zone.BackColor = GradeColor[i];
if (i == 0)
{
zone.UpperExtent = c1Chart1.ChartArea.AxisY.Max;
}
else
{
zone.UpperExtent = zones[i - 1].LowerExtent;
}
if (i == 4)
{
zone.LowerExtent = c1Chart1.ChartArea.AxisY.Min;
}
else
{
zone.LowerExtent = GradeBounds[i];
}
zone.Visible = true;
}
PositionLegends();
}
