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PathGradientBrush.RotateTransform Method

.NET Framework 1.1

Other Versions

Applies a clockwise rotation of the specified angle to the local geometric transform.

Overload List

Rotates the local geometric transform by the specified amount. This method prepends the rotation to the transform.

[Visual Basic] Overloads Public Sub RotateTransform(Single)

[C#] public void RotateTransform(float);

[C++] public: void RotateTransform(float);

[JScript] public function RotateTransform(float);

Rotates the local geometric transform by the specified amount in the specified order.

[Visual Basic] Overloads Public Sub RotateTransform(Single, MatrixOrder)

[C#] public void RotateTransform(float, MatrixOrder);

[C++] public: void RotateTransform(float, MatrixOrder);

[JScript] public function RotateTransform(float, MatrixOrder);

Example

[Visual Basic, C#] The following example is designed for use with Windows Forms, and it requires PaintEventArgs e, an OnPaint event object. The code performs the following actions:

Creates a graphics path and adds a rectangle to it.
Creates a PathGradientBrush object from the path points (in this example, the points form a rectangle, but it could be most any shape).
Sets the center color to red and the surrounding color to blue.
Draws the PathGradientBrush to the screen prior to applying the rotate transform.
Applies the rotate transform to the brush by using its RotateTransform method.
Draws the rotated brush (rectangle) to the screen.

[Visual Basic, C#] Notice that the bottom rectangle is rotated 45 degrees as compared to the one drawn prior to the translation.

[Visual Basic, C#] Note This example shows how to use one of the overloaded versions of RotateTransform. For other examples that might be available, see the individual overload topics.

[Visual Basic] 
Public Sub RotateTransformExample(e As PaintEventArgs)
' Create a graphics path and add a rectangle.
Dim myPath As New GraphicsPath()
Dim rect As New Rectangle(100, 20, 100, 50)
myPath.AddRectangle(rect)
' Get the path's array of points.
Dim myPathPointArray As PointF() = myPath.PathPoints
' Create a path gradient brush.
Dim myPGBrush As New PathGradientBrush(myPathPointArray)
' Set the color span.
myPGBrush.CenterColor = Color.Red
Dim mySurroundColor As Color() = {Color.Blue}
myPGBrush.SurroundColors = mySurroundColor
' Draw the brush to the screen prior to transformation.
e.Graphics.FillRectangle(myPGBrush, 10, 10, 200, 200)
' Apply the rotate transform to the brush.
myPGBrush.RotateTransform(45, MatrixOrder.Append)
' Draw the brush to the screen again after applying the
' transform.
e.Graphics.FillRectangle(myPGBrush, 10, 10, 200, 300)
End Sub
        
[C#] 
public void RotateTransformExample(PaintEventArgs e)
{
// Create a graphics path and add an ellipse.
GraphicsPath myPath = new GraphicsPath();
Rectangle rect = new Rectangle(100, 20, 100, 50);
myPath.AddRectangle(rect);
// Get the path's array of points.
PointF[] myPathPointArray = myPath.PathPoints;
// Create a path gradient brush.
PathGradientBrush myPGBrush = new
PathGradientBrush(myPathPointArray);
// Set the color span.
myPGBrush.CenterColor = Color.Red;
Color[] mySurroundColor = {Color.Blue};
myPGBrush.SurroundColors = mySurroundColor;
// Draw the brush to the screen prior to transformation.
e.Graphics.FillRectangle(myPGBrush, 10, 10, 200, 200);
// Apply the rotate transform to the brush.
myPGBrush.RotateTransform(45, MatrixOrder.Append);
// Draw the brush to the screen again after applying the
// transform.
e.Graphics.FillRectangle(myPGBrush, 10, 10, 200, 300);
}

[C++, JScript] No example is available for C++ or JScript. To view a Visual Basic or C# example, click the Language Filter button in the upper-left corner of the page.

PathGradientBrush.RotateTransform Method

Overload List

Example

See Also