RenderContextBase
Defines the base class for IRenderContext2D implementors, allowing drawing, blitting and creation of pens and brushes on the RenderSurfaceBase
Implementa: IRenderContext2D, IDisposable
Propiedades
Layers : RenderOperationLayers
Gets a collection of RenderOperationLayer layers, which allow rendering operations to be posted to a layered queue for later execution in order (and correct Z-ordering).
ViewportSize : Size
Gets the size of the current viewport for this render operation
Métodos
BeginLine(IPen2D, double, double) : IPathDrawingContext
Begins a Polyline segment, returning the IPathDrawingContext. This is the fastest way to draw lines and simply a proxy to Point}) method.
- pen
- The pen for the line segment
- startX
- The start X coordinate (pixel coord)
- startY
- The start Y coordinate (pixel coord)
Devuelve: The IPathDrawingContext to continue the line
BeginPolygon(IBrush2D, double, double, double) : IPathDrawingContext
Begins a filled Polygon segment, returning the IPathDrawingContext. This is the fastest way to draw polygon and simply a proxy to Double) method.
- brush
- The brush for the polygon fill
- startX
- The start X coordinate (pixel coord)
- startY
- The start Y coordinate (pixel coord)
- gradientRotationAngle
- The angle which the brush is rotated by
Devuelve: The IPathDrawingContext to continue the polygon
Clear()
Clears the IRenderSurface2D
ClipArea(IEnumerable<Tuple<Point, Point>>) : IEnumerable<Point>
Used internally to clip the area of a StackedMountainSeries to the viewport
- lines
- Collection of lines, which represent bounds of a polygon segment
ClipArea(IEnumerable<Point>, int, int) : IEnumerable<Point>
Used internally to clip a polygon or line-segment to the viewport
ClipZeroLineForArea(double, bool) : double
Used internally: Clips the zero line (e.g. in mountain fills) to the viewport
CreateBrush(Color, double, bool?) : IBrush2D
Creates a IBrush2D valid for the current render pass. Use this to draw rectangles, polygons and shaded areas
- color
- The color of the brush, supports transparency
- opacity
- The opacity of the brush
- alphaBlend
- If true, use alphablending when shading. If null, auto-detect from the Color
Devuelve: The IBrush2D instance
CreateBrush(Brush, double, TextureMappingMode) : IBrush2D
Creates a IBrush2D from WPF Brush valid for the current render pass. Use this to draw rectangles, polygons and shaded areas
- brush
- The WPF Brush to use as a source, e.g. this can be a , or it can be a . Note that solid colors support transparency and are faster than gradient brushes
- opacity
- The opacity of the brush
- textureMappingMode
Devuelve: The IBrush2D instance
CreatePen(Color, bool, float, double, double[], PenLineCap) : IPen2D
Creates a IPen2D valid for the current render pass. Use this to draw outlines, quads and lines
- color
- The color of the pen, supports transparency
- antiAliasing
- If true, use antialiasing
- strokeThickness
- The strokethickness, default=1.0
- opacity
- The opecity of the pen
- strokeDashArray
- strokeEndLineCap
Devuelve: The IPen2D instance
CreateSprite(FrameworkElement) : ISprite2D
Creates a Sprite from FrameworkElement by rendering to bitmap. This may be used in the Point) method to draw to the screen repeatedly
- fe
Dispose()
Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
DisposeResourceAfterDraw(IDisposable)
Call this method, passing in IDisposable instance to dispose after the render pass completes. Called internally by Ultrachart to lazy-dispose of Direct2D and Direct3D brushes and textures
- disposable
DrawEllipse(IPen2D, IBrush2D, Point, double, double)
Draws an Ellipse on the IRenderSurface2D using the specified outline IPen2DPen and fill IBrush2DBrush
- strokePen
- The stroke pen
- fillBrush
- The fill brush
- center
- The center of the ellipse in pixels
- width
- The width of the ellipse in pixels
- height
- The height of the ellipse in pixels
DrawEllipses(IPen2D, IBrush2D, IEnumerable<Point>, double, double)
Draws 0..N Ellipses at the points passed in with the same width, height, pen and brush
- strokePen
- fillBrush
- centres
- The points to draw ellipses at
- width
- The common width for all ellipses
- height
- The common height for all ellipses
DrawLine(IPen2D, Point, Point)
Draws a single line on the IRenderSurface2D using the specified IPen2D. Note for a faster implementation in some rasterizers, use DrawLines
- pen
- The pen
- pt1
- The start of the line in pixels
- pt2
- The end of the line in pixels
DrawLines(IPen2D, IEnumerable<Point>)
Draws a multi-point line on the IRenderSurface2D using the specified IPen2D
- pen
- The pen
- points
- The points.
DrawPixelsVertically(int, int, int, IList<int>, double, bool)
Draws vertical scan line for heatmap from bottom to top, from yStart to yEnd
- x
- Screen X coordinate where to draw pixels
- yStartBottom
- Screen Y coordinate of vertical scan line's bottom. Can be located outdide of visible area, in this case not all pixels in list are rendered
- yEndTop
- Screen Y coordinate of vertical scan line's top. Can be located outdide of visible area, in this case not all pixels in list are rendered
- pixelColorsArgb
- The colors to apply to the vertical scanline
- opacity
- The opacity of the vertical scaline, from 0.0 to 1.0
- yAxisIsFlipped
- if set to true then y axis is flipped.
DrawQuad(IPen2D, Point, Point)
Draws a Quad on the IRenderSurface2D using the specified IPen2D
- pen
- The Pen
- pt1
- pt2
DrawSprite(ISprite2D, Rect, Point)
Blits the source image onto the IRenderSurface2D
- srcSprite
- The source sprite to render
- srcRect
- The source rectangle
- destPoint
- The destination point, which will be the top-left coordinate of the sprite after blitting
DrawSprites(ISprite2D, Rect, IEnumerable<Point>)
Batch draw of the source sprite onto the IRenderSurface2D
- sprite2D
- The sprite to render
- srcRect
- The source rectangle
- points
- The points to draw sprites at
DrawSprites(ISprite2D, IEnumerable<Rect>)
Batch draw of the source sprite onto the IRenderSurface2D
- sprite2D
- The sprite to render
- dstRects
- The destination rectangles to draw sprites at
DrawText(string, Rect, AlignmentX, AlignmentY, Color, float, string, FontWeight)
Draws text if it does not go outside
- dstBoundingRect
- alignY
- foreColor
- fontSize
- text
- fontFamily
- fontWeight
- alignX
DrawText(string, Point, AlignmentX, AlignmentY, Color, float, string, FontWeight)
Draws text relative to base point
FillArea(IBrush2D, IEnumerable<Tuple<Point, Point>>, bool, double)
Fills an area, limited by two line segments, e.g. as in a stacked mountain chart, using the specified IBrush2D
- brush
- The brush
- lines
- The list of lines representing polygon segments
- isVerticalChart
- Value, indicates whether chart is vertical
- gradientRotationAngle
- The angle which the brush is rotated by
FillPolygon(IBrush2D, IEnumerable<Point>)
Fills a polygon on the IRenderSurface2D using the specifie IBrush2D
- brush
- The brush
- points
- The list of points defining the closed polygon, where X,Y coordinates in clockwise direction
FillRectangle(IBrush2D, Point, Point, double)
Fills a rectangle on the IRenderSurface2D using the specified IBrush2D
- brush
- The brush
- pt1
- pt2
- gradientRotationAngle
- The angle which the brush is rotated by
IsInBounds(Point) : bool
Returns true if the point is inside the viewport
SetPrimitvesCachingEnabled(bool)
enables/disables primitves chaching optimization ( Direct3D renderer only )