Class Drawing.NoAA

A specialized class the deals with drawing graphics without anti-aliasing. It deals with two issues:

Inheritance
Object
Drawing.NoAA
Inherited Members
Namespace: Acoustics.Shared.ImageSharp
Assembly: Acoustics.Shared.dll
Syntax
public class NoAA

Constructors

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NoAA(IImageProcessingContext)

Declaration
public NoAA(IImageProcessingContext context)
Parameters
Type Name Description
SixLabors.ImageSharp.Processing.IImageProcessingContext context

Fields

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Bug28Offset

Defines behaviour for where to draw stroke relative to the true real line defined by a path.

Declaration
public static readonly PointF Bug28Offset
Field Value
Type Description
SixLabors.ImageSharp.PointF

Methods

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DrawBorderInset(Pen, RectangleF)

Draws a border line on the inside perimiter of rectangle. ImageSharp by default draws lines split either side of the imaginary center line.

Declaration
public void DrawBorderInset(Pen border, RectangleF rectangle)
Parameters
Type Name Description
SixLabors.ImageSharp.Drawing.Processing.Pen border
SixLabors.ImageSharp.RectangleF rectangle
Remarks

ImageSharp's Draw Rectangle is unpredictable and buggy, especially for non-antialiased operations. See Acoustics.Test.Shared.Drawing.RectangleCornerBugTest. This method instead draws four lines as the border. // AT 2020-11: Update bug seems to be fixed.

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DrawLine(IPen, Int32, Int32, Int32, Int32)

Declaration
public void DrawLine(IPen pen, int x1, int y1, int x2, int y2)
Parameters
Type Name Description
SixLabors.ImageSharp.Drawing.Processing.IPen pen
Int32 x1
Int32 y1
Int32 x2
Int32 y2
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DrawLines(Color, Single, PointF[])

Declaration
public void DrawLines(Color color, float thickness, params PointF[] points)
Parameters
Type Name Description
SixLabors.ImageSharp.Color color
Single thickness
SixLabors.ImageSharp.PointF[] points
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DrawLines(IPen, PointF[])

Declaration
public void DrawLines(IPen pen, params PointF[] points)
Parameters
Type Name Description
SixLabors.ImageSharp.Drawing.Processing.IPen pen
SixLabors.ImageSharp.PointF[] points
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DrawRectangle(Color, Int32, Int32, Int32, Int32, Single)

Draws a thickness thick (1px by default) bordered rectangle with no fill with anti-aliasing disabled.

Declaration
public void DrawRectangle(Color color, int x1, int y1, int x2, int y2, float thickness = 1F)
Parameters
Type Name Description
SixLabors.ImageSharp.Color color
Int32 x1
Int32 y1
Int32 x2
Int32 y2
Single thickness
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DrawRectangle(Pen, RectangleF)

Declaration
public void DrawRectangle(Pen border, RectangleF rectangle)
Parameters
Type Name Description
SixLabors.ImageSharp.Drawing.Processing.Pen border
SixLabors.ImageSharp.RectangleF rectangle
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DrawRectangle(Pen, Int32, Int32, Int32, Int32)

Declaration
public void DrawRectangle(Pen pen, int x1, int y1, int x2, int y2)
Parameters
Type Name Description
SixLabors.ImageSharp.Drawing.Processing.Pen pen
Int32 x1
Int32 y1
Int32 x2
Int32 y2
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FillRectangle(IBrush, Int32, Int32, Int32, Int32)

Declaration
public void FillRectangle(IBrush brush, int x1, int y1, int x2, int y2)
Parameters
Type Name Description
SixLabors.ImageSharp.Drawing.Processing.IBrush brush
Int32 x1
Int32 y1
Int32 x2
Int32 y2

Extension Methods