XTransform Skew Function. Skew horizontally and vertically about a locked anchor point. ABCpdf .NET PDF Library.

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Skew Function    

Skew horizontally and vertically about a locked anchor point.

 

    
Syntax  

[C#]
void Skew(double skewX, double skewY, double anchorX, double anchorY)

[Visual Basic]
Sub Skew(skewX As Double, skewY As Double, anchorX As Double, anchorY As Double)

 

    

Params		  
Name Description
skewX The amount of horizontal skewing to apply.
skewY The amount of vertical skewing to apply.
anchorX The horizontal coordinate about which the stretch should be applied.
anchorY The vertical coordinate about which the stretch should be applied.

 

    

Notes		  

This method skews the world space about a locked anchor point. Different degrees of horizontal and vertical stretch can be used.

A skew or shear is a mathematical operation which shifts points by an amount proportional to the distance from the anchor point. This shift is scaled by the horizontal and vertical skew factors.

 

    

Example		  

Here we draw two rectangles into our document. The black rectangle is drawn before the skew operation and the red one is drawn after it.

[C#]
Doc theDoc = new Doc();
theDoc.Rect.Width = 200;
theDoc.Rect.Height = 250;
theDoc.Rect.Position(20, 20);
theDoc.Width = 20;
theDoc.FrameRect();
theDoc.Transform.Skew(1.5, 1.5, 20, 20);
theDoc.Color.String = "255 0 0"; // red
theDoc.FrameRect();
theDoc.Save(Server.MapPath("transformskew.pdf"));
theDoc.Clear();

[Visual Basic]
Dim theDoc As Doc = New Doc()
theDoc.Rect.Width = 200
theDoc.Rect.Height = 250
theDoc.Rect.Position(20, 20)
theDoc.Width = 20
theDoc.FrameRect()
theDoc.Transform.Skew(1.5, 1.5, 20, 20)
theDoc.Color.String = "255 0 0" ' red
theDoc.FrameRect()
theDoc.Save(Server.MapPath("transformskew.pdf"))
theDoc.Clear()


transformskew.pdf

 

    

 

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