C# Class Wpf.Controls.PanAndZoom.MatrixHelper

WPF Matrix helper methods.
显示文件 Open project: wieslawsoltes/MatrixPanAndZoomDemo Class Usage Examples

Public Properties

Property Type Description
Identity System.Windows.Media.Matrix

Public Methods

Method Description
Rotation ( double radians ) : System.Windows.Media.Matrix

Creates a matrix that rotates.
Rotation ( double angle, System.Windows.Vector center ) : System.Windows.Media.Matrix

Creates a matrix that rotates about a specified center.
Rotation ( double angle, double centerX, double centerY ) : System.Windows.Media.Matrix

Creates a matrix that rotates about a specified center.
Scale ( double scaleX, double scaleY ) : System.Windows.Media.Matrix

Creates a matrix that scales along the x-axis and y-axis.
ScaleAt ( double scaleX, double scaleY, double centerX, double centerY ) : System.Windows.Media.Matrix

Creates a matrix that is scaling from a specified center.
ScaleAtPrepend ( System.Windows.Media.Matrix matrix, double scaleX, double scaleY, double centerX, double centerY ) : System.Windows.Media.Matrix

Prepends a scale around the center of provided matrix.
Skew ( float angleX, float angleY ) : System.Windows.Media.Matrix

Creates a skew matrix.
TransformPoint ( System.Windows.Media.Matrix matrix, Point point ) : Point

Transforms a point by this matrix.
Translate ( double offsetX, double offsetY ) : System.Windows.Media.Matrix

Creates a translation matrix using the specified offsets.
TranslatePrepend ( System.Windows.Media.Matrix matrix, double offsetX, double offsetY ) : System.Windows.Media.Matrix

Prepends a translation around the center of provided matrix.

Method Details

Rotation() public static method

Creates a matrix that rotates.
public static Rotation ( double radians ) : System.Windows.Media.Matrix
radians double Angle of rotation in radians. Angles are measured clockwise when looking along the rotation axis.
return System.Windows.Media.Matrix

Rotation() public static method

Creates a matrix that rotates about a specified center.
public static Rotation ( double angle, System.Windows.Vector center ) : System.Windows.Media.Matrix
angle double Angle of rotation in radians.
center System.Windows.Vector The center of the rotation.
return System.Windows.Media.Matrix

Rotation() public static method

Creates a matrix that rotates about a specified center.
public static Rotation ( double angle, double centerX, double centerY ) : System.Windows.Media.Matrix
angle double Angle of rotation in radians.
centerX double The center X-coordinate of the rotation.
centerY double The center Y-coordinate of the rotation.
return System.Windows.Media.Matrix

Scale() public static method

Creates a matrix that scales along the x-axis and y-axis.
public static Scale ( double scaleX, double scaleY ) : System.Windows.Media.Matrix
scaleX double Scaling factor that is applied along the x-axis.
scaleY double Scaling factor that is applied along the y-axis.
return System.Windows.Media.Matrix

ScaleAt() public static method

Creates a matrix that is scaling from a specified center.
public static ScaleAt ( double scaleX, double scaleY, double centerX, double centerY ) : System.Windows.Media.Matrix
scaleX double Scaling factor that is applied along the x-axis.
scaleY double Scaling factor that is applied along the y-axis.
centerX double The center X-coordinate of the scaling.
centerY double The center Y-coordinate of the scaling.
return System.Windows.Media.Matrix

ScaleAtPrepend() public static method

Prepends a scale around the center of provided matrix.
public static ScaleAtPrepend ( System.Windows.Media.Matrix matrix, double scaleX, double scaleY, double centerX, double centerY ) : System.Windows.Media.Matrix
matrix System.Windows.Media.Matrix The matrix to prepend scale.
scaleX double Scaling factor that is applied along the x-axis.
scaleY double Scaling factor that is applied along the y-axis.
centerX double The center X-coordinate of the scaling.
centerY double The center Y-coordinate of the scaling.
return System.Windows.Media.Matrix

Skew() public static method

Creates a skew matrix.
public static Skew ( float angleX, float angleY ) : System.Windows.Media.Matrix
angleX float Angle of skew along the X-axis in radians.
angleY float Angle of skew along the Y-axis in radians.
return System.Windows.Media.Matrix

TransformPoint() public static method

Transforms a point by this matrix.
public static TransformPoint ( System.Windows.Media.Matrix matrix, Point point ) : Point
matrix System.Windows.Media.Matrix The matrix to use as a transformation matrix.
point System.Windows.Point >The original point to apply the transformation.
return System.Windows.Point

Translate() public static method

Creates a translation matrix using the specified offsets.
public static Translate ( double offsetX, double offsetY ) : System.Windows.Media.Matrix
offsetX double X-coordinate offset.
offsetY double Y-coordinate offset.
return System.Windows.Media.Matrix

TranslatePrepend() public static method

Prepends a translation around the center of provided matrix.
public static TranslatePrepend ( System.Windows.Media.Matrix matrix, double offsetX, double offsetY ) : System.Windows.Media.Matrix
matrix System.Windows.Media.Matrix The matrix to prepend translation.
offsetX double X-coordinate offset.
offsetY double Y-coordinate offset.
return System.Windows.Media.Matrix

Property Details

Identity public_oe static_oe property

Gets the identity matrix.
public static Matrix,System.Windows.Media Identity
return System.Windows.Media.Matrix