Stroke.Transform Method

  • Artikel

Stroke.Transform Method

Applies a linear transformation to a Stroke object.

Definition

Visual Basic .NET Public Sub Transform( _
ByVal inkTransform As Matrix _
)
C# public void Transform(
Matrix inkTransform
);
Managed C++ public: void Transform(
Matrix *inkTransform
);

Parameters

inkTransform System.Drawing.Drawing2D.Matrix. The System.Drawing.Drawing2D.Matrix Leave Site transform to use on the Stroke object.

Remarks

The transformation applies to the points, but not the pen width. To set a value that includes the pen width in the transformation, use the Transform(Matrix,Boolean) overload of this method.

The linear transform can represent scaling, rotation, translation, and combinations of transformations.

Examples

[C#]

This C# example rotates a Stroke object, theStroke, by 180 degrees around the center of the Stroke object's bounding box.

using System.Drawing.Drawing2D;
//...
Matrix inkTransform = new Matrix();
Rectangle inkBounds = theStroke.GetBoundingBox();
PointF center = new PointF(0.5f * (inkBounds.Left + inkBounds.Right),
                           0.5f * (inkBounds.Top + inkBounds.Bottom));
// Translate to center of bounding box
inkTransform.Translate(center.X, center.Y);
// Rotate by 180 degrees
inkTransform.Rotate(180f);
// Translate back
inkTransform.Translate(-center.X, -center.Y);
// Transform stroke
theStroke.Transform(inkTransform);

[VB.NET]

This Microsoft® Visual Basic® .NET example rotates a Stroke object, theStroke, by 180 degrees around the center of the Stroke object's bounding box.

Imports System.Drawing.Drawing2D
'...
Dim inkTransform As New Matrix()
Dim inkBounds As Rectangle = theStroke.GetBoundingBox()
Dim center As New PointF(0.5F * (inkBounds.Left + inkBounds.Right), _
                         0.5F * (inkBounds.Top + inkBounds.Bottom))
'Translate to center of bounding box
inkTransform.Translate(center.X, center.Y)
'Rotate by 180 degrees
inkTransform.Rotate(180.0F)
'Translate back
inkTransform.Translate(-center.X, -center.Y)
'Transform stroke
theStroke.Transform(inkTransform)

See Also