|
public Draw ( |
||
| g | The graphics surface on which to draw. | |
| x | int | The [physical] x position to draw the marker. |
| y | int | The [physical] y position to draw the marker. |
| 리턴 | void | |
public void Draw( Graphics g, int x, int y )
{
switch (markerType_)
{
case MarkerType.Cross1:
g.DrawLine( pen_, x-h_, y+h_, x+h_, y-h_ );
g.DrawLine( pen_, x+h_, y+h_, x-h_, y-h_ );
break;
case MarkerType.Cross2:
g.DrawLine( pen_, x, y-h_, x, y+h_ );
g.DrawLine( pen_, x-h_, y, x+h_, y );
break;
case MarkerType.Circle:
g.DrawEllipse( pen_, x-h_, y-h_, size_, size_ );
if ( this.filled_ )
{
g.FillEllipse( brush_, x-h_, y-h_, size_, size_ );
}
break;
case MarkerType.Square:
g.DrawRectangle( pen_, x-h_, y-h_, size_, size_ );
if ( this.filled_ )
{
g.FillRectangle( brush_, x-h_, y-h_, size_, size_ );
}
break;
case MarkerType.Triangle:
case MarkerType.TriangleDown:
{
Point p1 = new Point( x-h_, y-h_ );
Point p2 = new Point( x, y+h_ );
Point p3 = new Point( x+h_, y-h_ );
Point [] pts = new Point [3] { p1, p2, p3 };
GraphicsPath gp = new GraphicsPath();
gp.AddPolygon( pts );
g.DrawPath( pen_, gp );
if (this.filled_)
{
g.FillPath( brush_, gp );
}
break;
}
case MarkerType.TriangleUp:
{
Point p1 = new Point( x-h_, y+h_ );
Point p2 = new Point( x, y-h_ );
Point p3 = new Point( x+h_, y+h_ );
Point [] pts = new Point [3] { p1, p2, p3 };
GraphicsPath gp = new GraphicsPath();
gp.AddPolygon( pts );
g.DrawPath( pen_, gp );
if (this.filled_)
{
g.FillPath( brush_, gp );
}
break;
}
case MarkerType.FilledCircle:
g.DrawEllipse( pen_, x-h_, y-h_, size_, size_ );
g.FillEllipse( brush_, x-h_, y-h_, size_, size_ );
break;
case MarkerType.FilledSquare:
g.DrawRectangle( pen_, x-h_, y-h_, size_, size_ );
g.FillRectangle( brush_, x-h_, y-h_, size_, size_ );
break;
case MarkerType.FilledTriangle:
{
Point p1 = new Point( x-h_, y-h_ );
Point p2 = new Point( x, y+h_ );
Point p3 = new Point( x+h_, y-h_ );
Point [] pts = new Point [3] { p1, p2, p3 };
GraphicsPath gp = new GraphicsPath();
gp.AddPolygon( pts );
g.DrawPath( pen_, gp );
g.FillPath( brush_, gp );
break;
}
case MarkerType.Diamond:
{
Point p1 = new Point( x-h_, y );
Point p2 = new Point( x, y-h_ );
Point p3 = new Point( x+h_, y );
Point p4 = new Point( x, y+h_ );
Point [] pts = new Point [4] { p1, p2, p3, p4 };
GraphicsPath gp = new GraphicsPath();
gp.AddPolygon( pts );
g.DrawPath( pen_, gp );
if (this.filled_)
{
g.FillPath( brush_, gp );
}
break;
}
case MarkerType.Flag:
case MarkerType.FlagUp:
{
Point p1 = new Point( x, y );
Point p2 = new Point( x, y-size_ );
Point p3 = new Point( x+size_, y-size_+size_/3 );
Point p4 = new Point( x, y-size_+2*size_/3 );
g.DrawLine( pen_, p1, p2 );
Point [] pts = new Point [3] { p2, p3, p4 };
GraphicsPath gp = new GraphicsPath();
gp.AddPolygon( pts );
g.DrawPath( pen_, gp );
if (this.filled_)
{
g.FillPath( brush_, gp );
}
break;
}
case MarkerType.FlagDown:
{
Point p1 = new Point( x, y );
Point p2 = new Point( x, y+size_ );
Point p3 = new Point( x+size_, y+size_-size_/3 );
Point p4 = new Point( x, y+size_-2*size_/3 );
g.DrawLine( pen_, p1, p2 );
Point [] pts = new Point [3] { p2, p3, p4 };
GraphicsPath gp = new GraphicsPath();
gp.AddPolygon( pts );
g.DrawPath( pen_, gp );
if (this.filled_)
{
g.FillPath( brush_, gp );
}
break;
}
case MarkerType.None:
break;
}
}
/// <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)
{
var p1 = data_[i];
if (!Double.IsNaN(p1.X) && !Double.IsNaN(p1.Y))
{
PointF xPos = xAxis.WorldToPhysical(p1.X, false);
if (float.IsNaN(xPos.X) || xPos.X < leftCutoff_ || rightCutoff_ < xPos.X)
{
continue;
}
PointF yPos = yAxis.WorldToPhysical(p1.Y, false);
if (float.IsNaN(yPos.Y))
{
continue;
}
marker_.Draw(g, (int)xPos.X, (int)yPos.Y);
if (marker_.DropLine)
{
PointD yMin = new PointD(p1.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));
}
}
}
}
