void chart_PostPaint(object sender, ChartPaintEventArgs e)
{
if (!(e.ChartElement is Series)) return;
ChartGraphics cg = e.ChartGraphics;
foreach (Series s in e.Chart.Series)
{
double max = s.Points.FindMaxByValue().YValues[0];
for (int i = 0; i < s.Points.Count; i++)
{
if (s.Points[i].YValues[0] == max)
{
// Get relative coordinates of the data point
System.Drawing.PointF pos = System.Drawing.PointF.Empty;
pos.X = (float)cg.GetPositionFromAxis(s.ChartArea, AxisName.X, s.Points[i].XValue);
pos.Y = (float)cg.GetPositionFromAxis(s.ChartArea, AxisName.Y, max);
// Convert relative coordinates to absolute coordinates.
pos = cg.GetAbsolutePoint(pos);
// Draw concentric circles at the data point
for (int radius = 10; radius < 40; radius += 10)
{
cg.Graphics.DrawEllipse(
System.Drawing.Pens.Red,
pos.X - radius / 2,
pos.Y - radius / 2,
radius, radius);
}
}
}
}
}
private void chart1_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (graph_type == "z-score")
{
Chart my_chart = (Chart)sender;
ChartArea area = my_chart.ChartAreas[0];
Axis ax = chart.ChartAreas[0].AxisX;
Axis ay = chart.ChartAreas[0].AxisY;
Graphics graph = e.ChartGraphics.Graphics;
PointF point1 = PointF.Empty;
PointF point2 = PointF.Empty;
point1.X = (float)ax.ValueToPixelPosition(chart.ChartAreas[0].AxisX.Minimum);
point1.Y = (float)ay.ValueToPixelPosition(-1.0);
point2.X = (float)ax.ValueToPixelPosition(chart.ChartAreas[0].AxisX.Maximum);
point2.Y = (float)ay.ValueToPixelPosition(-1.0);
float[] dashValues = { 2, 2, 2, 2 };
Pen blackPen = new Pen(Color.DimGray, 0.25f);
blackPen.DashPattern = dashValues;
graph.DrawLine(blackPen, point1, point2);
}
}
protected override void OnPostPaint(ChartPaintEventArgs e)
{
waiting = 0;
UpdateData();
waiting = 0;
base.OnPostPaint(e);
}
private void chart1_PrePaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
foreach (DataPoint p in chart1.Series[0].Points)
{
p["Exploded"] = "True";
}
}
private void PaintElement (ChartGraphics g, object element, ElementPosition position)
{
ChartPaintEventArgs e = new ChartPaintEventArgs (this, element, g, position);
OnPrePaint (e);
OnPostPaint (e);
}
private void Chart1_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
// Painting series object
if (sender is System.Windows.Forms.DataVisualization.Charting.ChartArea)
{
ChartArea area = (ChartArea)sender;
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
RectangleF rect = new RectangleF(area.Position.X,
area.Position.Y,
area.Position.Width,
6);
rect = e.ChartGraphics.GetAbsoluteRectangle(rect);
e.ChartGraphics.Graphics.DrawString(area.Name,
new Font("Arial", 10),
Brushes.Black,
rect,
format);
}
}
/// <summary>
/// Chart post paint event handler.
/// Used to draw the "connection" lines between the original and supplemental pies.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Event arguments.</param>
private void chart_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (sender is ChartArea)
{
ChartArea area = (ChartArea)sender;
if (this.supplementalChartArea != null &&
area.Name == this.supplementalChartArea.Name)
{
// Get position of the plotting areas in pixels
RectangleF originalPosition = GetChartAreaPlottingPosition(this.originalChartArea, e.ChartGraphics);
RectangleF supplementalPosition = GetChartAreaPlottingPosition(this.supplementalChartArea, e.ChartGraphics);
// Get coordinates of the "connection" lines
PointF p1 = GetRotatedPlotAreaPoint(supplementalPosition, 325f);
PointF p2 = GetRotatedPlotAreaPoint(supplementalPosition, 215f);
PointF p3 = GetRotatedPlotAreaPoint(originalPosition, 90f - this.collectedPieSliceAngle / 2f);
PointF p4 = GetRotatedPlotAreaPoint(originalPosition, 90f + this.collectedPieSliceAngle / 2f);
// Draw "connection lines"
using (Pen pen = new Pen(this.ConnectionLinesColor, 1))
{
e.ChartGraphics.Graphics.DrawLine(pen, p1, p3);
e.ChartGraphics.Graphics.DrawLine(pen, p2, p4);
}
}
}
}
private void PaintElement(ChartGraphics g, object element, ElementPosition position)
{
ChartPaintEventArgs e = new ChartPaintEventArgs(this, element, g, position);
OnPrePaint(e);
OnPostPaint(e);
}
private void chart1_PrePaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
// read the calculated Box Size - CurrentBoxSize attribute
string calculatedBoxSize = chart1.Series["Default"]["CurrentBoxSize"].ToString();
// update chart title
chart1.Titles[0].Text = "Renko chart, Box Size = " + calculatedBoxSize;
}
private void chart2_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
System.Drawing.Font drawFont = new System.Drawing.Font("Verdana", 8);
System.Drawing.SolidBrush drawBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red);
System.Drawing.StringFormat drawFormat = new System.Drawing.StringFormat();
if (!(string.IsNullOrEmpty(Xg) && string.IsNullOrEmpty(Yg)))
{
e.ChartGraphics.Graphics.DrawString("ELong=" + Xg + "\n" + "Fuerza=" + Yg, drawFont, drawBrush, x + 5, y - 2);
e.ChartGraphics.Graphics.DrawRectangle(new Pen(Color.Red, 3), r1);
}
}
/// <summary>
/// Chart Paint event handler.
/// </summary>
private void Chart_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (e.ChartElement is ChartArea)
{
ChartArea area = (ChartArea)e.ChartElement;
// call the paint method.
if (ChartAreas.IndexOf(area.Name) >= 0 && enabled)
{
PaintDataTable(e);
}
}
}
private static void ChartOnPostPaint(object sender, ChartPaintEventArgs chartPaintEventArgs)
{
// Subscribing to PostPaint allows us to get the correct
// bounds of the chart to send to the user. Some other events
// don't seem to be sufficient.
Chart ptrChart = sender as Chart;
if (ptrChart == null)
{
return;
}
ptrChart.PostPaint -= ChartOnPostPaint; // Only run once
OnZoomChanged(ptrChart);
}
private void Chart1_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (e.ChartElement is ChartArea)
{
ChartArea area = (ChartArea)e.ChartElement;
if (area.Name == "Default")
{
// If Connection line is not checked return
if (!ConnectionLine.Checked)
{
return;
}
double max;
double min;
double xMax;
double xMin;
// Find Minimum and Maximum values
FindMaxMin(out max, out min, out xMax, out xMin);
// Take Graphics object from chart
Graphics graph = e.ChartGraphics.Graphics;
// Convert X and Y values to screen position
float pixelYMax = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.Y, max);
float pixelXMax = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, xMax);
float pixelYMin = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.Y, min);
float pixelXMin = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, xMin);
PointF point1 = PointF.Empty;
PointF point2 = PointF.Empty;
// Set Maximum and minimum points
point1.X = pixelXMax;
point1.Y = pixelYMax;
point2.X = pixelXMin;
point2.Y = pixelYMin;
// Convert relative coordinates to absolute coordinates.
point1 = e.ChartGraphics.GetAbsolutePoint(point1);
point2 = e.ChartGraphics.GetAbsolutePoint(point2);
// Draw connection line
graph.DrawLine(new Pen(Color.FromArgb(26, 59, 105), 2), point1, point2);
}
}
}
private void Chart1_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
// Painting series object
if (e.ChartElement is System.Windows.Forms.DataVisualization.Charting.Series)
{
// Add custom painting only to the series with name "Sereis2"
Series series = (Series)e.ChartElement;
if (series.Name == "Series2")
{
// Find data point with maximum Y value
DataPoint dataPoint = series.Points.FindMaxByValue();
// Image path
System.Windows.Forms.DataVisualization.Charting.Utilities.SampleMain.MainForm mainForm = (System.Windows.Forms.DataVisualization.Charting.Utilities.SampleMain.MainForm) this.ParentForm;
string fileNameString = mainForm.applicationPath + "\\Images\\money.png";
// Load bitmap from file
System.Drawing.Image bitmap = Bitmap.FromFile(fileNameString);
// Set Red color as transparent
ImageAttributes attrib = new ImageAttributes();
attrib.SetColorKey(Color.Red, Color.Red, ColorAdjustType.Default);
// Calculates marker position depending on the data point X and Y values
RectangleF imagePosition = RectangleF.Empty;
imagePosition.X = (float)e.ChartGraphics.GetPositionFromAxis(
"Default", AxisName.X, dataPoint.XValue);
imagePosition.Y = (float)e.ChartGraphics.GetPositionFromAxis(
"Default", AxisName.Y, dataPoint.YValues[0]);
imagePosition = e.ChartGraphics.GetAbsoluteRectangle(imagePosition);
imagePosition.Width = bitmap.Width;
imagePosition.Height = bitmap.Height;
imagePosition.Y -= bitmap.Height;
imagePosition.X -= bitmap.Width / 2;
// Draw image
e.ChartGraphics.Graphics.DrawImage(bitmap,
Rectangle.Round(imagePosition),
0, 0, bitmap.Width, bitmap.Height,
GraphicsUnit.Pixel,
attrib);
// Dispose image object
bitmap.Dispose();
}
}
}
public void PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (chart1.Series[0].Points.Count <= 0)
{
return;
}
Axis ax = chart1.ChartAreas[0].AxisX;
Axis ay = chart1.ChartAreas[0].AxisY;
Graphics g = e.ChartGraphics.Graphics;
using (StringFormat fmt = new StringFormat()
{
Alignment = StringAlignment.Far,
LineAlignment = StringAlignment.Far
})
foreach (Series s in chart1.Series)
{
foreach (DataPoint dp in s.Points)
{
if (dp.Tag == null)
{
break;
}
SizeF sz = (SizeF)dp.Tag;
double vx2 = dp.XValue + sz.Width;
double vy2 = dp.YValues[0] + sz.Height;
int x1 = (int)ax.ValueToPixelPosition(dp.XValue);
int y1 = (int)ay.ValueToPixelPosition(dp.YValues[0]);
int x2 = (int)ax.ValueToPixelPosition(vx2);
int y2 = (int)ay.ValueToPixelPosition(vy2);
Rectangle rect = Rectangle.FromLTRB(x1, y2, x2, y1);
using (Pen pen = new Pen(Color.Black))
g.DrawRectangle(pen, rect);
g.DrawString(dp.Label, Font, Brushes.Black, rect, fmt);
}
}
}
private void chart1_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (sender is ChartArea)
{
Series series = chart1.Series["Tasks"];
// Take Graphics object from chart
Graphics graph = e.ChartGraphics.Graphics;
for (int i = 0; i < series.Points.Count; i++)
{
if ((i + 1) < series.Points.Count && i != 1 && i != 3)
{
double p1X, p2X, p1Y, p2Y;
p1X = series.Points[i].XValue;
p2X = series.Points[i + 1].XValue;
p1Y = series.Points[i].YValues[1];
p2Y = series.Points[i + 1].YValues[0];
float pixelX1 = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.Y, p1Y);
float pixelY1 = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, p1X);
float pixelX2 = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.Y, p2Y);
float pixelY2 = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, p2X);
PointF point1 = PointF.Empty;
PointF point2 = PointF.Empty;
PointF point3 = PointF.Empty;
point1.X = pixelX1;
point1.Y = pixelY1;
point2.X = pixelX2;
point2.Y = pixelY2;
// make the middle right-angle point
point3.X = pixelX2;
point3.Y = pixelY1;
// If 3D, we need to transform the 3D points into 2D points
if (checkBoxShow3D.Checked)
{
// Get Z position for this series, and then add half of series depth so that
// custom drawing occurs at the front of the data points
float ZPosition = chart1.ChartAreas["Default"].GetSeriesZPosition(series);
ZPosition = ZPosition + (float)0.5 * (chart1.ChartAreas["Default"].GetSeriesDepth(series));
// Create 3D points for the 2D points
Point3D[] My3DPoint = new Point3D[3];
My3DPoint[0] = new Point3D(point1.X, point1.Y, ZPosition);
My3DPoint[1] = new Point3D(point2.X, point2.Y, ZPosition);
My3DPoint[2] = new Point3D(point3.X, point3.Y, ZPosition);
// Transform so that new 2D points has new X and Y values that take into account the Z position
chart1.ChartAreas["Default"].TransformPoints(My3DPoint);
point1 = My3DPoint[0].PointF;
point2 = My3DPoint[1].PointF;
point3 = My3DPoint[2].PointF;
}
// Convert relative coordinates to absolute coordinates.
point1 = e.ChartGraphics.GetAbsolutePoint(point1);
point2 = e.ChartGraphics.GetAbsolutePoint(point2);
point3 = e.ChartGraphics.GetAbsolutePoint(point3);
// Draw connection line
graph.DrawLine(new Pen(Color.Black, 2), point1, point3);
graph.DrawLine(new Pen(Color.Black, 2), point3, point2);
DrawArrow(graph, Color.Black, point2, point3, 22.5);
}
}
}
}
private void chart1_PostPaint(object sender, ChartPaintEventArgs e)
{
if (e.ChartElement is Chart)
{
// PostPaint(e);
}
}
public void PostPaint(ChartPaintEventArgs e)
{
// create text to draw
String TextToDraw;
TextToDraw = "";
TextToDraw += "";
// get graphics tools
Graphics g = e.ChartGraphics.Graphics;
Font DrawFont = System.Drawing.SystemFonts.CaptionFont;
Brush DrawBrush = Brushes.Black;
// see how big the text will be
int TxtWidth = (int)g.MeasureString(TextToDraw, DrawFont).Width;
int TxtHeight = (int)g.MeasureString(TextToDraw, DrawFont).Height;
// where to draw
int x = 15; // a few pixels from the left border
int y = (int)e.Chart.Height;
y = y - TxtHeight - 5; // a few pixels off the bottom
// draw the string
g.DrawString(TextToDraw, DrawFont, DrawBrush, x, y);
}
private void OnPostPaintDepth(object sender, ChartPaintEventArgs e)
{
/*ChartGraphics cg = e.ChartGraphics;
PointF p = new PointF { X = (float)cg.GetPositionFromAxis(kDepthChartAreaName, AxisName.X, m_vwap) };
p = cg.GetAbsolutePoint(p);
Pen bp = new Pen(Color.Black);
cg.Graphics.DrawLine(bp, p.X, 0, p.X, m_depthChart.Height);*/
}
private void chart1_PrePaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (e.ChartElement is Chart)
{
// Position point chart type series on the points of the box plot to display labels
chart1.Series["BoxPlotLabels"].Points[0].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[0];
chart1.Series["BoxPlotLabels"].Points[1].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[1];
chart1.Series["BoxPlotLabels"].Points[2].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[2];
chart1.Series["BoxPlotLabels"].Points[3].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[3];
chart1.Series["BoxPlotLabels"].Points[4].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[4];
chart1.Series["BoxPlotLabels"].Points[5].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[5];
chart1.Series["BoxPlotLabels"].Points[6].Label = "";
chart1.Series["BoxPlotLabels"].Points[7].Label = "";
if (checkBoxShowUnusual.Checked)
{
if (chart1.Series["BoxPlotSeries"].Points[0].YValues.Length > 6)
{
chart1.Series["BoxPlotLabels"].Points[6].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[6] - 3;
chart1.Series["BoxPlotLabels"].Points[6].Label = "Unusual data point";
}
if (chart1.Series["BoxPlotSeries"].Points[0].YValues.Length > 8)
{
chart1.Series["BoxPlotLabels"].Points[7].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[8] + 3;
chart1.Series["BoxPlotLabels"].Points[7].Label = "Unusual data point";
}
else if (chart1.Series["BoxPlotSeries"].Points[0].YValues.Length > 7)
{
chart1.Series["BoxPlotLabels"].Points[7].YValues[0] = chart1.Series["BoxPlotSeries"].Points[0].YValues[7] + 3;
chart1.Series["BoxPlotLabels"].Points[7].Label = "Unusual data point";
}
}
// Define labels
int whiskerPercentile = (3 - comboBoxPercentiles.SelectedIndex) * 5;
chart1.Series["BoxPlotLabels"].Points[0].Label = whiskerPercentile.ToString() + "th Percentile";
chart1.Series["BoxPlotLabels"].Points[1].Label = (100 - whiskerPercentile).ToString() + "th Percentile";
if (whiskerPercentile == 0)
{
chart1.Series["BoxPlotLabels"].Points[0].Label = "Minimum";
chart1.Series["BoxPlotLabels"].Points[1].Label = "Maximum";
}
chart1.Series["BoxPlotLabels"].Points[2].Label = "25th Percentile (LQ)";
chart1.Series["BoxPlotLabels"].Points[3].Label = "75th Percentile (UQ)";
chart1.Series["BoxPlotLabels"].Points[4].Label = (checkBoxShowAverage.Checked) ? "Average/Mean" : "";
chart1.Series["BoxPlotLabels"].Points[5].Label = (checkBoxShowMedian.Checked) ? "Median" : "";
// Add strip lines
chart1.ChartAreas["Data Chart Area"].AxisY.StripLines.Clear();
StripLine stripLine = new StripLine();
stripLine.BackColor = Color.FromArgb(60, 252, 180, 65);
stripLine.IntervalOffset = chart1.Series["BoxPlotLabels"].Points[2].YValues[0];
stripLine.StripWidth = chart1.Series["BoxPlotLabels"].Points[3].YValues[0] - stripLine.IntervalOffset;
stripLine.Text = "data points\n50% of";
stripLine.Font = new Font("Microsoft Sans Serif", 7);
stripLine.TextOrientation = TextOrientation.Rotated270;
stripLine.TextLineAlignment = StringAlignment.Center;
stripLine.TextAlignment = StringAlignment.Near;
chart1.ChartAreas["Data Chart Area"].AxisY.StripLines.Add(stripLine);
stripLine = new StripLine();
stripLine.BackColor = Color.FromArgb(60, 252, 180, 65);
stripLine.IntervalOffset = chart1.Series["BoxPlotLabels"].Points[0].YValues[0];
stripLine.StripWidth = chart1.Series["BoxPlotLabels"].Points[1].YValues[0] - stripLine.IntervalOffset;
stripLine.ForeColor = Color.FromArgb(120, Color.Black);
stripLine.Text = (100 - whiskerPercentile * 2).ToString() + "% of data points";
stripLine.Font = new Font("Microsoft Sans Serif", 7);
stripLine.TextOrientation = TextOrientation.Rotated270;
stripLine.TextLineAlignment = StringAlignment.Center;
chart1.ChartAreas["Data Chart Area"].AxisY.StripLines.Add(stripLine);
}
}
private void chart1_PrePaint(object sender, ChartPaintEventArgs e)
{
//e.ChartGraphics.Graphics.DrawLine(new Pen(Color.Red), -20 + mouse_xPos, -20 + mouse_yPos, 20 + mouse_xPos, 20 + mouse_yPos);
//e.ChartGraphics.Graphics.DrawLine(new Pen(Color.Red), 20 + mouse_xPos, -20 + mouse_yPos, -20 + mouse_xPos, 20 + mouse_yPos);
}
protected virtual void OnPrePaint(ChartPaintEventArgs e)
{
}
private void chart1_PostPaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (sender is ChartArea)
{
ChartArea area = (ChartArea)sender;
if (area.Name == "Default")
{
Point3D [] pt3d = new Point3D[4];
pt3d[0] = new Point3D();
pt3d[1] = new Point3D();
pt3d[2] = new Point3D();
pt3d[3] = new Point3D();
float depth = (float)area.GetSeriesDepth(chart1.Series[0]);
float zpos = (float)area.GetSeriesZPosition(chart1.Series[0]);
pt3d[0].Y = (float)area.AxisX.ValueToPosition(chart1.Series["Estimated"].Points[7].XValue);
pt3d[0].X = (float)area.AxisY.ValueToPosition(chart1.Series["Estimated"].Points[7].YValues[1]);
pt3d[0].Z = depth;
pt3d[1].Y = (float)area.AxisX.ValueToPosition(chart1.Series["Estimated"].Points[6].XValue);
pt3d[1].X = (float)area.AxisY.ValueToPosition(chart1.Series["Estimated"].Points[6].YValues[0]);
pt3d[1].Z = depth;
pt3d[2].Y = (float)area.AxisX.ValueToPosition(chart1.Series["Estimated"].Points[3].XValue);
pt3d[2].X = (float)area.AxisY.ValueToPosition(chart1.Series["Estimated"].Points[3].YValues[1]);
pt3d[2].Z = depth;
pt3d[3].Y = (float)area.AxisX.ValueToPosition(chart1.Series["Estimated"].Points[2].XValue);
pt3d[3].X = (float)area.AxisY.ValueToPosition(chart1.Series["Estimated"].Points[2].YValues[0]);
pt3d[3].Z = depth;
area.TransformPoints(pt3d);
PointF ptF1 = new PointF();
PointF ptF2 = new PointF();
PointF ptF3 = new PointF();
PointF ptF4 = new PointF();
PointF ptF5 = new PointF();
PointF ptF6 = new PointF();
ptF1 = e.ChartGraphics.GetAbsolutePoint(pt3d[0].PointF);
ptF3 = e.ChartGraphics.GetAbsolutePoint(pt3d[1].PointF);
ptF4 = e.ChartGraphics.GetAbsolutePoint(pt3d[2].PointF);
ptF6 = e.ChartGraphics.GetAbsolutePoint(pt3d[3].PointF);
ptF2.X = ptF3.X;
ptF2.Y = ptF1.Y;
ptF5.X = ptF6.X;
ptF5.Y = ptF4.Y;
// Take Graphics object from chart
Graphics graph = e.ChartGraphics.Graphics;
graph.DrawLine(new Pen(Color.Black, 1), ptF1, ptF2);
graph.DrawLine(new Pen(Color.Black, 1), ptF2, ptF3);
graph.DrawLine(new Pen(Color.Black, 1), ptF4, ptF5);
graph.DrawLine(new Pen(Color.Black, 1), ptF5, ptF6);
DrawArrow(graph, Color.Black, ptF3, ptF2, 22.5);
DrawArrow(graph, Color.Black, ptF6, ptF5, 22.5);
}
}
}
private void chart_PostPaint(object sender, ChartPaintEventArgs e) {
var chartArea = e.ChartElement as ChartArea;
if (chartArea != null) {
ChartGraphics chartGraphics = e.ChartGraphics;
using (Pen p = new Pen(Color.DarkGray)) {
double xmin = chartArea.AxisX.ScaleView.ViewMinimum;
double xmax = chartArea.AxisX.ScaleView.ViewMaximum;
double ymin = chartArea.AxisY.ScaleView.ViewMinimum;
double ymax = chartArea.AxisY.ScaleView.ViewMaximum;
if (xmin > ymax || ymin > xmax) return;
PointF start = PointF.Empty;
start.X = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisX.AxisName, Math.Max(xmin, ymin));
start.Y = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisY.AxisName, Math.Max(xmin, ymin));
PointF end = PointF.Empty;
end.X = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisX.AxisName, Math.Min(xmax, ymax));
end.Y = (float)chartGraphics.GetPositionFromAxis(chartArea.Name, chartArea.AxisY.AxisName, Math.Min(xmax, ymax));
chartGraphics.Graphics.DrawLine(p, chartGraphics.GetAbsolutePoint(start), chartGraphics.GetAbsolutePoint(end));
}
}
}
/// <summary>
/// This method does all the work for the painting of the data table.
/// </summary>
private void PaintDataTable(System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
ChartArea area = (ChartArea)e.ChartElement;
// get the rect of the chart area
RectangleF rect = e.ChartGraphics.GetAbsoluteRectangle(area.Position.ToRectangleF());
// get the inner plot position
ElementPosition elemPos = area.InnerPlotPosition;
// find the coordinates of the inner plot position
float x = rect.X + (rect.Width / 100 * elemPos.X);
float y = rect.Y + (rect.Height / 100 * elemPos.Y);
float ChartAreaBottomY = rect.Y + rect.Height;
// offset the bottom by the width+1 of the scrollbar if it is visible
if (area.AxisX.ScrollBar.IsVisible && !area.AxisX.ScrollBar.IsPositionedInside)
{
ChartAreaBottomY -= ((float)area.AxisX.ScrollBar.Size + 1);
}
float width = (rect.Width / 100 * elemPos.Width);
float height = (rect.Height / 100 * elemPos.Height);
// find the height of the font that will be used
Font axisFont = area.AxisX.LabelStyle.Font;
string testString = "ForFontHeight";
SizeF axisFontSize = e.ChartGraphics.Graphics.MeasureString(testString, axisFont);
// find the height of the font that will be used
Font titleFont = area.AxisX.TitleFont;
testString = area.AxisX.Title;
SizeF titleFontSize = e.ChartGraphics.Graphics.MeasureString(testString, titleFont);
int seriesCount = 0;
// for each series that is attached to the chart area,
// draw some boxes around the labels in the color provided
for (int i = e.Chart.Series.Count - 1; i >= 0; i--)
{
if (area.Name == e.Chart.Series[i].ChartArea)
{
seriesCount++;
}
}
// now, if a box was actually drawn, then draw
// the verticle lines to separate the columns of the table.
if (seriesCount > 0)
{
for (int i = 0; i < e.Chart.Series.Count; i++)
{
if (area.Name == e.Chart.Series[i].ChartArea)
{
double min = area.AxisX.Minimum;
double max = area.AxisX.Maximum;
// modify the min value for the current axis view
if (area.AxisX.ScaleView.Position - 1 > min)
{
min = area.AxisX.ScaleView.Position - 1;
}
// modify the max value for the currect axis view
if ((area.AxisX.ScaleView.Position + area.AxisX.ScaleView.Size + 0.5) < max)
{
max = area.AxisX.ScaleView.Position + area.AxisX.ScaleView.Size + 0.5;
}
// find the starting point that will be display.
// this is dependent on the current axis view.
// this sample assumes the same number of points in each
// series so always take from the zeroth series
int pointIndex = 0;
foreach (DataPoint pt in ChartObj.Series[0].Points)
{
if (pt.XValue > min)
{
break;
}
pointIndex++;
}
bool TableLegendDrawn = false;
for (double AxisValue = min; AxisValue < max; AxisValue++)
{
float pixelX = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, AxisValue);
float nextPixelX = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, AxisValue + 1);
float pixelY = ChartAreaBottomY - titleFontSize.Height - (seriesCount * axisFontSize.Height);
PointF point1 = PointF.Empty;
PointF point2 = PointF.Empty;
// Set Maximum and minimum points
point1.X = pixelX;
point1.Y = 0;
// Convert relative coordinates to absolute coordinates.
point1 = e.ChartGraphics.GetAbsolutePoint(point1);
point2.X = point1.X;
point2.Y = ChartAreaBottomY - titleFontSize.Height;
point1.Y = pixelY;
// Draw connection line
e.ChartGraphics.Graphics.DrawLine(new Pen(borderColor), point1, point2);
point2.X = nextPixelX;
point2.Y = 0;
point2 = e.ChartGraphics.GetAbsolutePoint(point2);
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
// for each series draw one value in the column
int row = 0;
foreach (Series ser in ChartObj.Series)
{
if (area.Name == ser.ChartArea)
{
if (!TableLegendDrawn)
{
// draw the series color box
e.ChartGraphics.Graphics.FillRectangle(new SolidBrush(ser.Color),
x - 10, row * (axisFont.Height) + (point1.Y), 10, axisFontSize.Height);
e.ChartGraphics.Graphics.DrawRectangle(new Pen(borderColor),
x - 10, row * (axisFont.Height) + (point1.Y), 10, axisFontSize.Height);
e.ChartGraphics.Graphics.FillRectangle(new SolidBrush(tableColor),
x,
row * (axisFont.Height) + (point1.Y),
width,
axisFontSize.Height);
e.ChartGraphics.Graphics.DrawRectangle(new Pen(borderColor),
x,
row * (axisFont.Height) + (point1.Y),
width,
axisFontSize.Height);
}
if (pointIndex < ser.Points.Count)
{
string label = ser.Points[pointIndex].YValues[0].ToString();
RectangleF textRect = new RectangleF(point1.X, row * (axisFont.Height) + (point1.Y + 1), point2.X - point1.X, axisFont.Height);
e.ChartGraphics.Graphics.DrawString(label, axisFont, new SolidBrush(area.AxisX.LabelStyle.ForeColor), textRect, format);
}
row++;
}
}
TableLegendDrawn = true;
pointIndex++;
}
// do this only once so break!
break;
}
}
}
}
private void Chart1_PrePaint(object sender, System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs e)
{
if (e.ChartElement is ChartArea)
{
ChartArea area = (ChartArea)e.ChartElement;
if (area.Name == "Default")
{
double max;
double min;
double xMax;
double xMin;
// Find Minimum and Maximum values
FindMaxMin(out max, out min, out xMax, out xMin);
// Take Graphics object from chart
Graphics graph = e.ChartGraphics.Graphics;
// Convert X and Y values to screen position
float pixelYMax = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.Y, max);
float pixelXMax = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, xMax);
float pixelYMin = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.Y, min);
float pixelXMin = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, xMin);
float XMin = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, area.AxisX.Minimum);
float XMax = (float)e.ChartGraphics.GetPositionFromAxis("Default", AxisName.X, area.AxisX.Maximum);
// Specify with of triangle
float width = 3;
// Set Maximum points
PointF [] points = new PointF[3];
points[0].X = pixelXMax - width;
points[0].Y = pixelYMax - width - 2;
points[1].X = pixelXMax + width;
points[1].Y = pixelYMax - width - 2;
points[2].X = pixelXMax;
points[2].Y = pixelYMax - 1;
// Convert relative coordinates to absolute coordinates.
points[0] = e.ChartGraphics.GetAbsolutePoint(points[0]);
points[1] = e.ChartGraphics.GetAbsolutePoint(points[1]);
points[2] = e.ChartGraphics.GetAbsolutePoint(points[2]);
// Draw Maximum trangle
Pen darkPen = new Pen(Color.FromArgb(26, 59, 105), 1);
graph.FillPolygon(new SolidBrush(Color.FromArgb(220, 252, 180, 65)), points);
graph.DrawPolygon(darkPen, points);
points[0].X = XMin;
points[1].X = XMax;
points[0].Y = points[1].Y = pixelYMax;
// Convert relative coordinates to absolute coordinates.
points[0] = e.ChartGraphics.GetAbsolutePoint(points[0]);
points[1] = e.ChartGraphics.GetAbsolutePoint(points[1]);
graph.DrawLine(darkPen, points[0], points[1]);
// Set Minimum points
points = new PointF[3];
points[0].X = pixelXMin - width;
points[0].Y = pixelYMin + width + 2;
points[1].X = pixelXMin + width;
points[1].Y = pixelYMin + width + 2;
points[2].X = pixelXMin;
points[2].Y = pixelYMin + 1;
// Convert relative coordinates to absolute coordinates.
points[0] = e.ChartGraphics.GetAbsolutePoint(points[0]);
points[1] = e.ChartGraphics.GetAbsolutePoint(points[1]);
points[2] = e.ChartGraphics.GetAbsolutePoint(points[2]);
// Draw Minimum trangle
graph.FillPolygon(new SolidBrush(Color.FromArgb(220, 224, 64, 10)), points);
graph.DrawPolygon(darkPen, points);
points[0].X = XMin;
points[1].X = XMax;
points[0].Y = points[1].Y = pixelYMin;
// Convert relative coordinates to absolute coordinates.
points[0] = e.ChartGraphics.GetAbsolutePoint(points[0]);
points[1] = e.ChartGraphics.GetAbsolutePoint(points[1]);
graph.DrawLine(darkPen, points[0], points[1]);
}
}
}
private void chart1_PostPaint(object sender, ChartPaintEventArgs e)
{
Debug.WriteLine(e.ChartElement);
}
/// <summary>
/// Handles the PostPaint event of the mainChart control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="T:System.Windows.Forms.DataVisualization.Charting.ChartPaintEventArgs"/> instance containing the event data.</param>
private void mainChart_PostPaint(object sender, ChartPaintEventArgs e)
{
// Check if the sender is a cell of the Legend
if (sender is LegendCell)
{
// Get the LegendCell
LegendCell legendCell = sender as LegendCell;
// Ensure it's one of the items created by this class
if (legendCell.Name.IndexOf("ActivityItem") > -1)
{
// Get the index out of the cell's name
index = Convert.ToInt32(legendCell.Name.Substring(12));
// Set the line color
Color lineColor = myAlternateLineColors.FirstColor;
// Set the alternate line colors up if necessary
if (myAlternateLineColors.Enabled == true)
{
if (index % 2 != 0)
lineColor = myAlternateLineColors.SecondColor;
}
// Check if this series is using Indexed x values
bool isIndexed = (mySeries[mySeriesAssignment[index]].IsXValueIndexed == true);
// Get the AxisType for X and Y axes
AxisName myYAxisName;
if (mySeries[mySeriesAssignment[index]].YAxisType == AxisType.Primary)
myYAxisName = AxisName.Y;
else
myYAxisName = AxisName.Y2;
// The first point of the horizontal line is the end of the legend cell (left aligned),
// or beginning of legend cell (right aligned)
PointF firstPoint = new PointF();
if (myLegend.Docking == Docking.Right)
{
firstPoint.X = e.Position.X - myLeftPadding;
firstPoint.Y = e.Position.Y + (e.Position.Height / 2);
}
else
{
firstPoint.X = e.Position.X + e.ChartGraphics.GetRelativeSize((e.ChartGraphics.Graphics.MeasureString(legendCell.Text, mySecondCellFont))).Width + 1;
firstPoint.Y = e.Position.Y + (e.Position.Height / 2);
}
// The second point of the horizontal line is straight to the right of the first point, on
// top of the desired point
PointF secondPoint = new PointF();
if (isIndexed)
secondPoint.X = (float)e.ChartGraphics.GetPositionFromAxis(mySeries[mySeriesAssignment[index]].ChartArea, AxisName.X, myPointIndex[index] + 1);
else
secondPoint.X = (float)e.ChartGraphics.GetPositionFromAxis(mySeries[mySeriesAssignment[index]].ChartArea, AxisName.X, mySeries[mySeriesAssignment[index]].Points[myPointIndex[index]].XValue);
secondPoint.Y = firstPoint.Y;
// Convert first and second point of horizontal line to absolute co-ordinates
firstPoint = e.ChartGraphics.GetAbsolutePoint(firstPoint);
secondPoint = e.ChartGraphics.GetAbsolutePoint(secondPoint);
// Draw the first line
e.ChartGraphics.Graphics.DrawLine(new Pen(lineColor, myLineThickness), firstPoint, secondPoint);
// The first point of the vertical line is the second point of the horizontal line.
// The second point of the vertical line is the datapoint itself
PointF thirdPoint = new PointF();
if (isIndexed)
thirdPoint.X = (float)e.ChartGraphics.GetPositionFromAxis(mySeries[mySeriesAssignment[index]].ChartArea, AxisName.X, myPointIndex[index] + 1);
else
thirdPoint.X = (float)e.ChartGraphics.GetPositionFromAxis(mySeries[mySeriesAssignment[index]].ChartArea, AxisName.X, mySeries[mySeriesAssignment[index]].Points[myPointIndex[index]].XValue);
thirdPoint.Y = (float)e.ChartGraphics.GetPositionFromAxis(mySeries[mySeriesAssignment[index]].ChartArea, myYAxisName, mySeries[mySeriesAssignment[index]].Points[myPointIndex[index]].YValues[0]);
// Convert to the third point to absolute co-ordinates
thirdPoint = e.ChartGraphics.GetAbsolutePoint(thirdPoint);
// Draw the vertical line
e.ChartGraphics.Graphics.DrawLine(new Pen(lineColor, myLineThickness), secondPoint, thirdPoint);
// Fill the circle
Brush myFillBrush = new SolidBrush(mySeries[mySeriesAssignment[index]].Color);
e.ChartGraphics.Graphics.FillEllipse(myFillBrush, new RectangleF(thirdPoint.X - myCirclePointRadius, thirdPoint.Y - myCirclePointRadius, myCirclePointRadius * 2, myCirclePointRadius * 2));
// Draw the circle
e.ChartGraphics.Graphics.DrawEllipse(new Pen(myCircleOutlineColor, myCircleOutlineThickness), thirdPoint.X - myCirclePointRadius, thirdPoint.Y - myCirclePointRadius, myCirclePointRadius * 2, myCirclePointRadius * 2);
}
else if (legendCell.Name.IndexOf("ActivityLeftPadding") > -1)
{
// Store the left cell's width incase the legend is right-docked
myLeftPadding = e.Position.Width;
}
}
}
protected virtual void OnPrePaint (ChartPaintEventArgs e)
{
}
private void FillChart(object sender, ChartPaintEventArgs e)
{
Logger.Enter();
/*
dbDataSet.settingsRow opt = Db.Instance.dSet.settings.FindByid(1);
DateTime date = DateTime.Now;
bool today = false;
const int delta = 15;
if(date.Date == DateTime.Now.Date)
today = true;
int nIters = opt.EndTime.Subtract(opt.StartTime).Minutes / delta;
WaitDialog wd = new WaitDialog(0, today ? nIters * 2 : nIters, 1);
wd.Show();
wd.Refresh();
chart1.ChartAreas[0].AxisX.Interval = 60;
chart1.ChartAreas[0].AxisX.IntervalOffset = 0;
chart1.ChartAreas[0].AxisX.IsStartedFromZero = true;
chart1.Series["seriesPresent"].Points.Clear();
chart1.Series["seriesPrognosed"].Points.Clear();
Dictionary<DateTime, int> present = GetPresentData(date);
Dictionary<DateTime, int> prognosed = GetPrognosedData(date);
if(today)
{
foreach (KeyValuePair<DateTime, int> kv in present)
{
wd.StepIt();
chart1.Series["seriesPresent"].Points.AddXY(kv.Key, kv.Value);
}
}
foreach (KeyValuePair<DateTime, int> kv in prognosed)
{
wd.StepIt();
chart1.Series["seriesPrognosed"].Points.AddXY(kv.Key, kv.Value);
}
wd.Close();
*/
Logger.Leave();
}
private static void ChartOnPostPaint(object sender, ChartPaintEventArgs chartPaintEventArgs)
{
// Subscribing to PostPaint allows us to get the correct
// bounds of the chart to send to the user. Some other events
// don't seem to be sufficient.
Chart ptrChart = sender as Chart;
if (ptrChart == null) return;
ptrChart.PostPaint -= ChartOnPostPaint; // Only run once
OnZoomChanged(ptrChart);
}
private void chart_PostPaint(object sender, ChartPaintEventArgs e) {
if (ChartPostPaint != null)
ChartPostPaint(this, EventArgs.Empty);
}
private void lineChart_PostPaint(object sender, ChartPaintEventArgs e)
{
if (lineChart.Series.Count < 2)
throw new RangeSpliceChartHelperException("Not enough series (need at least two)");
if(lineChart.Series[0].ChartType != SeriesChartType.Line)
throw new RangeSpliceChartHelperException("Series[0] is not a line! (Series[0], the Top Line, needs to be a line)");
if (lineChart.Series[1].ChartType != SeriesChartType.Line)
throw new RangeSpliceChartHelperException("Series[1] is not a line! (Series[1], the Bottom Line, needs to be a line)");
this.DrawPolygons(e.ChartGraphics, lineChart.Series[0], lineChart.Series[1]);
}
void NetworkChart_PostPaint( object sender, ChartPaintEventArgs e )
{
if ( RangeSelectEnd - RangeSelectStart <= 0 )
{
return;
}
if ( e.ChartGraphics.Graphics != null && e.ChartElement is ChartArea && e.Chart.Series.Count > 0 && e.Chart.Series[0].Points.Count > 0 )
{
ChartGraphics cg = e.ChartGraphics;
System.Drawing.PointF Pos1 = System.Drawing.PointF.Empty;
Pos1.X = ( float )cg.GetPositionFromAxis( "DefaultChartArea", AxisName.X, RangeSelectStart );
Pos1.Y = ( float )cg.GetPositionFromAxis( "DefaultChartArea", AxisName.Y, ( float )NetworkChart.ChartAreas["DefaultChartArea"].AxisY.Minimum );
System.Drawing.PointF Pos2 = System.Drawing.PointF.Empty;
Pos2.X = ( float )cg.GetPositionFromAxis( "DefaultChartArea", AxisName.X, RangeSelectEnd );
Pos2.Y = ( float )cg.GetPositionFromAxis( "DefaultChartArea", AxisName.Y, NetworkChart.ChartAreas["DefaultChartArea"].AxisY.Maximum );
// Convert relative coordinates to absolute coordinates.
Pos1 = cg.GetAbsolutePoint( Pos1 );
Pos2 = cg.GetAbsolutePoint( Pos2 );
SolidBrush Brush = new SolidBrush( Color.FromArgb( 20, 255, 0, 0 ) );
cg.Graphics.FillRectangle
(
Brush,
Pos1.X,
Pos2.Y,
Pos2.X - Pos1.X,
Pos1.Y - Pos2.Y
);
}
}
