public PointF Point2D(PointF pt, ChartStyle cs3d)
{
PointF aPoint = new PointF();
if (pt.X < cs3d.XMin || pt.X > cs3d.XMax ||
pt.Y < cs3d.YMin || pt.Y > cs3d.YMax)
{
pt.X = Single.NaN;
pt.Y = Single.NaN;
}
aPoint.X = (pt.X - cs3d.XMin) *
form1.PlotPanel.Width / (cs3d.XMax - cs3d.XMin);
aPoint.Y = form1.PlotPanel.Height - (pt.Y - cs3d.YMin) *
form1.PlotPanel.Height / (cs3d.YMax - cs3d.YMin);
return(aPoint);
}
public Form1()
{
InitializeComponent();
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.ResizeRedraw, true);
// Subscribing to a paint eventhandler to drawingPanel:
PlotPanel.Paint += new PaintEventHandler(PlotPanelPaint);
// Specify chart style parameters:
cs = new ChartStyle(this);
cs2d = new ChartStyle2D(this);
ds = new DataSeries();
dc = new DrawChart(this);
dc.IsInterp = true;
dc.NumberInterp = 5;
cf = new ChartFunctions();
cm = new ColorMap();
}
public void AddChartStyle2D(Graphics g, ChartStyle cs3d)
{
Pen aPen = new Pen(Color.Black, 1f);
SizeF tickFontSize = g.MeasureString("A", cs3d.TickFont);
// Create vertical gridlines:
float fX, fY;
if (cs3d.IsYGrid == true)
{
aPen = new Pen(cs3d.GridStyle.LineColor, 1f);
aPen.DashStyle = cs3d.GridStyle.Pattern;
for (fX = cs3d.XMin + cs3d.XTick; fX < cs3d.XMax; fX += cs3d.XTick)
{
g.DrawLine(aPen, Point2D(new PointF(fX, cs3d.YMin), cs3d),
Point2D(new PointF(fX, cs3d.YMax), cs3d));
}
}
// Create horizontal gridlines:
if (cs3d.IsXGrid == true)
{
aPen = new Pen(cs3d.GridStyle.LineColor, 1f);
aPen.DashStyle = cs3d.GridStyle.Pattern;
for (fY = cs3d.YMin + cs3d.YTick; fY < cs3d.YMax; fY += cs3d.YTick)
{
g.DrawLine(aPen, Point2D(new PointF(cs3d.XMin, fY), cs3d),
Point2D(new PointF(cs3d.XMax, fY), cs3d));
}
}
// Create the x-axis tick marks:
for (fX = cs3d.XMin; fX <= cs3d.XMax; fX += cs3d.XTick)
{
PointF yAxisPoint = Point2D(new PointF(fX, cs3d.YMin), cs3d);
g.DrawLine(Pens.Black, yAxisPoint, new PointF(yAxisPoint.X, yAxisPoint.Y - 5f));
}
// Create the y-axis tick marks:
for (fY = cs3d.YMin; fY <= cs3d.YMax; fY += cs3d.YTick)
{
PointF xAxisPoint = Point2D(new PointF(cs3d.XMin, fY), cs3d);
g.DrawLine(Pens.Black, xAxisPoint, new PointF(xAxisPoint.X + 5f, xAxisPoint.Y));
}
aPen.Dispose();
}
private void AddLabels(Graphics g, ChartStyle cs3d)
{
float xOffset = ChartArea.Width / 30.0f;
float yOffset = ChartArea.Height / 30.0f;
SizeF labelFontSize = g.MeasureString("A", cs3d.LabelFont);
SizeF titleFontSize = g.MeasureString("A", cs3d.TitleFont);
SizeF tickFontSize = g.MeasureString("A", cs3d.TickFont);
SolidBrush aBrush = new SolidBrush(cs3d.TickColor);
StringFormat sFormat = new StringFormat();
// Create the x-axis tick marks:
aBrush = new SolidBrush(cs3d.TickColor);
for (float fX = cs3d.XMin; fX <= cs3d.XMax;
fX += cs3d.XTick)
{
PointF yAxisPoint = Point2D(new PointF(fX,
cs3d.YMin), cs3d);
sFormat.Alignment = StringAlignment.Far;
SizeF sizeXTick = g.MeasureString(fX.ToString(),
cs3d.TickFont);
g.DrawString(fX.ToString(), cs3d.TickFont, aBrush, new PointF(yAxisPoint.X +
sizeXTick.Width / 2 + form1.PlotPanel.Left,
yAxisPoint.Y + 4f + form1.PlotPanel.Top),
sFormat);
}
// Create the y-axis tick marks:
for (float fY = cs3d.YMin; fY <= cs3d.YMax; fY +=
cs3d.YTick)
{
PointF xAxisPoint = Point2D(new PointF(cs3d.XMin,
fY), cs3d);
sFormat.Alignment = StringAlignment.Far;
g.DrawString(fY.ToString(), cs3d.TickFont, aBrush,
new PointF(xAxisPoint.X - 3f +
form1.PlotPanel.Left,
xAxisPoint.Y - tickFontSize.Height / 2 +
form1.PlotPanel.Top), sFormat);
}
// Add horizontal axis label:
aBrush = new SolidBrush(cs3d.LabelColor);
SizeF stringSize = g.MeasureString(cs3d.XLabel,
cs3d.LabelFont);
g.DrawString(cs3d.XLabel, cs3d.LabelFont, aBrush,
new Point(form1.PlotPanel.Left +
form1.PlotPanel.Width / 2 -
(int)stringSize.Width / 2, ChartArea.Bottom -
(int)yOffset - (int)labelFontSize.Height));
// Add y-axis label:
sFormat.Alignment = StringAlignment.Center;
stringSize = g.MeasureString(cs3d.YLabel, cs3d.LabelFont);
// Save the state of the current Graphics object
GraphicsState gState = g.Save();
g.TranslateTransform(xOffset, yOffset +
titleFontSize.Height + yOffset / 3 +
form1.PlotPanel.Height / 2);
g.RotateTransform(-90);
g.DrawString(cs3d.YLabel, cs3d.LabelFont,
aBrush, 0, 0, sFormat);
// Restore it:
g.Restore(gState);
// Add title:
aBrush = new SolidBrush(cs3d.TitleColor);
stringSize = g.MeasureString(cs3d.Title, cs3d.TitleFont);
if (cs3d.Title.ToUpper() != "NO TITLE")
{
g.DrawString(cs3d.Title, cs3d.TitleFont, aBrush,
new Point(form1.PlotPanel.Left +
form1.PlotPanel.Width / 2 -
(int)stringSize.Width / 2, ChartArea.Top +
(int)yOffset));
}
aBrush.Dispose();
}
public void SetPlotArea(Graphics g, ChartStyle cs3d)
{
// Draw chart area:
SolidBrush aBrush = new SolidBrush(ChartBackColor);
Pen aPen = new Pen(ChartBorderColor, 2);
g.FillRectangle(aBrush, ChartArea);
g.DrawRectangle(aPen, ChartArea);
// Set PlotArea:
float xOffset = ChartArea.Width / 30.0f;
float yOffset = ChartArea.Height / 30.0f;
SizeF labelFontSize = g.MeasureString("A",
cs3d.LabelFont);
SizeF titleFontSize = g.MeasureString("A",
cs3d.TitleFont);
if (cs3d.Title.ToUpper() == "NO TITLE")
{
titleFontSize.Width = 8f;
titleFontSize.Height = 8f;
}
float xSpacing = xOffset / 3.0f;
float ySpacing = yOffset / 3.0f;
SizeF tickFontSize = g.MeasureString("A", cs3d.TickFont);
float tickSpacing = 2f;
SizeF yTickSize = g.MeasureString(
cs3d.YMin.ToString(), cs3d.TickFont);
for (float yTick = cs3d.YMin; yTick <= cs3d.YMax;
yTick += cs3d.YTick)
{
SizeF tempSize = g.MeasureString(yTick.ToString(),
cs3d.TickFont);
if (yTickSize.Width < tempSize.Width)
{
yTickSize = tempSize;
}
}
float leftMargin = xOffset + labelFontSize.Width +
xSpacing + yTickSize.Width + tickSpacing;
float rightMargin = 2 * xOffset;
float topMargin = yOffset +
titleFontSize.Height + ySpacing;
float bottomMargin = yOffset + labelFontSize.Height +
ySpacing + tickSpacing + tickFontSize.Height;
// Define the plot area:
int plotX = ChartArea.X + (int)leftMargin;
int plotY = ChartArea.Y + (int)topMargin;
int plotWidth = ChartArea.Width - (int)leftMargin - (int)rightMargin;
int plotHeight = ChartArea.Height - (int)topMargin - (int)bottomMargin;
form1.PlotPanel.Left = plotX;
form1.PlotPanel.Top = plotY;
if (cs3d.IsColorBar)
{
form1.PlotPanel.Width = 25 * plotWidth / 30;
}
else
{
form1.PlotPanel.Width = plotWidth;
}
form1.PlotPanel.Height = plotHeight;
AddLabels(g, cs3d);
}
