protected override Primitives.VisualItem CreateItem( Primitives.BoundsMarker marker )
{
Primitives.Path rect = new Primitives.Path();
rect.Add( new Primitives.Path.Move( marker.Rectangle.TopLeft ) );
rect.Add( new Primitives.Path.Line( marker.Rectangle.TopRight ) );
rect.Add( new Primitives.Path.Line( marker.Rectangle.BottomRight ) );
rect.Add( new Primitives.Path.Line( marker.Rectangle.BottomLeft ) );
rect.Add( new Primitives.Path.Line( marker.Rectangle.TopLeft ) );
rect.Add( new Primitives.Path.Close() );
return rect;
}
public Primitives.Path Create( double x, double y, double width, double height )
{
Primitives.Path path = new Primitives.Path();
path.Add( new Primitives.Path.Move( new Types.Point( x, y ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( x + width, y ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( x + width, y + height ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( x, y + height ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( x, y ) ) );
path.Add( new Primitives.Path.Close() );
return path;
}
public Primitives.Path Create( double x, double y, double width, double height )
{
Primitives.Path path = new Primitives.Path();
path.Add( new Primitives.Path.Move( new Types.Point( x + width / 2, y ) ) );
path.Add( new Primitives.Path.EllipticalArc( width / 2, height / 2, 0, false, true, new Types.Point( x + width, y + height / 2 ) ) );
path.Add( new Primitives.Path.EllipticalArc( width / 2, height / 2, 0, false, true, new Types.Point( x + width / 2, y + height ) ) );
path.Add( new Primitives.Path.EllipticalArc( width / 2, height / 2, 0, false, true, new Types.Point( x, y + height / 2 ) ) );
path.Add( new Primitives.Path.EllipticalArc( width / 2, height / 2, 0, false, true, new Types.Point( x + width / 2, y ) ) );
path.Add( new Primitives.Path.Close() );
return path;
}
public Primitives.Path Create( double x, double y, double width, double height, double radius, Corners corners )
{
bool topLeft = (corners & Corners.TopLeft) != 0;
bool topRight = (corners & Corners.TopRight) != 0;
bool bottomLeft = (corners & Corners.BottomLeft) != 0;
bool bottomRight = (corners & Corners.BottomRight) != 0;
Primitives.Path path = new Primitives.Path();
path.Add( new Primitives.Path.Move( new Types.Point( x + (topLeft ? radius : 0), y ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( x + width - (topRight ? radius : 0), y ) ) );
if( topRight )
{
path.Add( new Primitives.Path.EllipticalArc( radius, radius, 0, false, true, new Types.Point( x + width, y + radius ) ) );
}
path.Add( new Primitives.Path.Line( new Types.Point( x + width, y + height - (bottomRight ? radius : 0) ) ) );
if( bottomRight )
{
path.Add( new Primitives.Path.EllipticalArc( radius, radius, 0, false, true, new Types.Point( x + width - radius, y + height ) ) );
}
path.Add( new Primitives.Path.Line( new Types.Point( x + (bottomLeft ? radius : 0), y + height ) ) );
if( bottomLeft )
{
path.Add( new Primitives.Path.EllipticalArc( radius, radius, 0, false, true, new Types.Point( x, y + height - radius ) ) );
}
path.Add( new Primitives.Path.Line( new Types.Point( x, y + (topLeft ? radius : 0) ) ) );
if( topLeft )
{
path.Add( new Primitives.Path.EllipticalArc( radius, radius, 0, false, true, new Types.Point( x + radius, y ) ) );
}
path.Add( new Primitives.Path.Close() );
return path;
}
private Primitives.Path CreateSlice( int index, int count, double start, double sweep, double radius, double move )
{
Primitives.Path path = new Primitives.Path();
double cx = Math.Sin( start + sweep / 2 ) * move, cy = -Math.Cos( start + sweep / 2 ) * move;
double sx = Math.Sin( start ) * radius, sy = -Math.Cos( start ) * radius;
double ex = Math.Sin( start + sweep ) * radius, ey = -Math.Cos( start + sweep ) * radius;
path.Add( new Primitives.Path.Move( new Types.Point( cx, cy ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( cx + sx, cy + sy ) ) );
path.Add( new Primitives.Path.EllipticalArc( radius, radius, 0, (sweep > Math.PI), true, new Types.Point( cx + ex, cy + ey ) ) );
path.Add( new Primitives.Path.Line( new Types.Point( cx, cy ) ) );
path.Add( new Primitives.Path.Close() );
path.Style.Add( "GraphPiece" );
path.Style.AddExtra( "RowIndex", index.ToString() );
path.Style.AddExtra( "RowCount", count.ToString() );
return path;
}
public override Primitives.Path FlattenPath( Primitives.Path source )
{
PathCommandVisitor visitor = new PathCommandVisitor();
foreach( Primitives.Path.Command pathCommand in source.Commands )
{
pathCommand.Visit( visitor );
}
using( GraphicsPath gp = visitor.GetGraphicsPath() )
{
gp.Flatten();
PointF lastPoint = PointF.Empty;
Primitives.Path path = new Primitives.Path();
path.Pen = source.Pen;
path.Brush = source.Brush;
for( int i = 0; i < gp.PointCount; ++i )
{
PointF point = gp.PathPoints[i];
byte type = gp.PathTypes[i];
PointF nextPoint = point;
if( i < gp.PointCount - 1 && gp.PathTypes[i + 1] == 1 )
{
nextPoint = gp.PathPoints[i + 1];
}
switch( type )
{
case 0:
{
path.Add( new Primitives.Path.Move( new Types.Point( point.X, point.Y ) ) );
break;
}
case 1:
{
bool first = (i == 0) || gp.PathTypes[i - 1] != 1;
bool last = (i == gp.PointCount - 1) || gp.PathTypes[i + 1] != 1;
if( first || last
|| Math.Sqrt( Math.Pow( point.X - lastPoint.X, 2 ) + Math.Pow( point.Y - lastPoint.Y, 2 ) ) > _accuracy
|| Math.Sqrt( Math.Pow( point.X - nextPoint.X, 2 ) + Math.Pow( point.Y - nextPoint.Y, 2 ) ) > _accuracy )
{
path.Add( new Primitives.Path.Line( new Types.Point( point.X, point.Y ) ) );
lastPoint = point;
}
break;
}
case 129:
{
path.Add( new Primitives.Path.Line( new Types.Point( point.X, point.Y ) ) );
path.Add( new Primitives.Path.Close() );
break;
}
default:
throw new InvalidOperationException();
}
}
return path;
}
}
public Primitives.Container Create( IData data, Settings settings )
{
if( data == null )
{
throw new ArgumentNullException( "data" );
}
if( settings == null )
{
throw new ArgumentNullException( "settings" );
}
if( data.ColumnCount < 2 )
{
throw new ArgumentException( "Line data must have at least two columns.", "data" );
}
Primitives.Container container = new Primitives.Container();
Primitives.BoundsMarker bounds = new Primitives.BoundsMarker( new Types.Rectangle( 0, 0, settings.Width, settings.Height ) );
bounds.Style.Add( "GraphContainer" );
container.AddBack( bounds );
Primitives.Container lines = new Primitives.Container();
double minHorzData = double.MaxValue;
double maxHorzData = double.MinValue;
for( int i = 0; i < data.RowCount; ++i )
{
double v = data[i, 0];
minHorzData = Math.Min( minHorzData, v );
maxHorzData = Math.Max( maxHorzData, v );
}
double minVertData = double.MaxValue;
double maxVertData = double.MinValue;
for( int i = 0; i < data.RowCount; ++i )
{
for( int j = 1; j < data.ColumnCount; ++j )
{
double v = data[i, j];
minVertData = Math.Min( minVertData, v );
maxVertData = Math.Max( maxVertData, v );
}
}
if( maxVertData == minVertData )
{
maxVertData = minVertData + 1;
}
double maxExtent = Math.Max( settings.Width, settings.Height);
double textHeight = 2;
double border = 20;
Types.Rectangle visibleArea = new Types.Rectangle( border, border, settings.Width - border * 2, settings.Height - border * 2 - textHeight );
double zero = visibleArea.Bottom + minVertData / (maxVertData - minVertData) * visibleArea.Height;
for( int col = 1; col < data.ColumnCount; ++col )
{
Primitives.Container line = new Primitives.Container();
List<Types.Point> points = new List<Types.Point>();
List<Primitives.Path.Command> pathCommands = new List<Primitives.Path.Command>();
pathCommands.Add( new Primitives.Path.Move( new Types.Point( visibleArea.X, zero ) ) );
for( int row = 0; row < data.RowCount; ++row )
{
double y = data[row, col];
double x = data[row, 0];
x = visibleArea.X + (x - minHorzData) / (maxHorzData - minHorzData) * visibleArea.Width;
y = visibleArea.Bottom - (y - minVertData) / (maxVertData - minVertData) * visibleArea.Height;
Primitives.Path.Command pathCommand = new Primitives.Path.Line( new Types.Point( x, y ) );
pathCommands.Add( pathCommand );
}
pathCommands.Add( new Primitives.Path.Line( new Types.Point( visibleArea.Right, zero ) ) );
pathCommands.Add( new Primitives.Path.Close() );
Primitives.Path path = new Primitives.Path( pathCommands.ToArray() );
path.Style.Add( "GraphPiece" );
path.Style.AddExtra( "RowIndex", (col - 1).ToString() );
path.Style.AddExtra( "RowCount", (data.ColumnCount - 1).ToString() );
line.AddBack( path );
lines.AddBack( line );
}
container.AddBack( lines );
double available = settings.Height - visibleArea.Bottom;
for( int i = 0; i < data.RowCount; ++i )
{
string label = data.GetRowExtra( i, "LABEL", null );
if( label != null )
{
double x = data[i, 0];
x = visibleArea.X + (x - minHorzData) / (maxHorzData - minHorzData) * visibleArea.Width;
Primitives.Text text = new Primitives.Text( label, new Types.Point( x, visibleArea.Bottom + available / 5 ), Primitives.Text.Position.TopCenter );
text.FontSizePoints = textHeight / 2;
text.Style.Add( "GraphText" );
container.AddBack( text );
}
}
return container;
}
