/// <summary>
/// Draws the point plot on a GDI+ surface against the provided x and y axes.
/// </summary>
/// <param name="g">The GDI+ surface on which to draw.</param>
/// <param name="xAxis">The X-Axis to draw against.</param>
/// <param name="yAxis">The Y-Axis to draw against.</param>
public virtual void Draw(Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis)
{
SequenceAdapter data_ =
new SequenceAdapter(this.DataSource, this.DataMember, this.OrdinateData, this.AbscissaData);
float leftCutoff_ = xAxis.PhysicalMin.X - marker_.Size;
float rightCutoff_ = xAxis.PhysicalMax.X + marker_.Size;
for (int i = 0; i < data_.Count; ++i)
{
if (!Double.IsNaN(data_[i].X) && !Double.IsNaN(data_[i].Y))
{
PointF xPos = xAxis.WorldToPhysical(data_[i].X, false);
if (xPos.X < leftCutoff_ || rightCutoff_ < xPos.X)
{
continue;
}
PointF yPos = yAxis.WorldToPhysical(data_[i].Y, false);
marker_.Draw(g, (int)xPos.X, (int)yPos.Y);
if (marker_.DropLine)
{
PointD yMin = new PointD(data_[i].X, Math.Max(0.0f, yAxis.Axis.WorldMin));
PointF yStart = yAxis.WorldToPhysical(yMin.Y, false);
g.DrawLine(marker_.Pen, new Point((int)xPos.X, (int)yStart.Y), new Point((int)xPos.X, (int)yPos.Y));
}
}
}
}
/// <summary>
/// Draws the marker on a plot surface.
/// </summary>
/// <param name="g">graphics surface on which to draw</param>
/// <param name="xAxis">The X-Axis to draw against.</param>
/// <param name="yAxis">The Y-Axis to draw against.</param>
public void Draw(System.Drawing.Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis)
{
PointF point = new PointF(
xAxis.WorldToPhysical(x_, true).X,
yAxis.WorldToPhysical(y_, true).Y);
marker_.Draw(g, (int)point.X, (int)point.Y);
}
/// <summary>
/// Draws the plot on a GDI+ surface against the provided x and y axes.
/// </summary>
/// <param name="g">The GDI+ surface on which to draw.</param>
/// <param name="xAxis">The X-Axis to draw against.</param>
/// <param name="yAxis">The Y-Axis to draw against.</param>
public override void Draw(Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis)
{
SequenceAdapter data =
new SequenceAdapter(this.DataSource, this.DataMember, this.OrdinateData, this.AbscissaData);
TextDataAdapter textData =
new TextDataAdapter(this.DataSource, this.DataMember, this.TextData);
// first plot the marker
// we can do this cast, since the constructor accepts only this type!
for (int i = 0; i < data.Count; ++i)
{
try
{
PointD pt = data[i];
if (!Double.IsNaN(pt.X) && !Double.IsNaN(pt.Y))
{
PointF xPos = xAxis.WorldToPhysical(pt.X, false);
PointF yPos = yAxis.WorldToPhysical(pt.Y, false);
Marker.Draw(g, (int)xPos.X, (int)yPos.Y);
if (textData[i] != "")
{
SizeF size = g.MeasureString(textData[i], this.Font);
switch (labelTextPosition_)
{
case LabelPositions.Above:
g.DrawString(textData[i], font_, Brushes.Black, new PointF(xPos.X - size.Width / 2, yPos.Y - size.Height - Marker.Size * 2 / 3));
break;
case LabelPositions.Below:
g.DrawString(textData[i], font_, Brushes.Black, new PointF(xPos.X - size.Width / 2, yPos.Y + Marker.Size * 2 / 3));
break;
case LabelPositions.Left:
g.DrawString(textData[i], font_, Brushes.Black, new PointF(xPos.X - size.Width - Marker.Size * 2 / 3, yPos.Y - size.Height / 2));
break;
case LabelPositions.Right:
g.DrawString(textData[i], font_, Brushes.Black, new PointF(xPos.X + Marker.Size * 2 / 3, yPos.Y - size.Height / 2));
break;
}
}
}
}
catch
{
throw new FlorenceException("Error in TextPlot.Draw");
}
}
}
