/// <summary>
/// Applies a clockwise rotation of the specified angle about the
/// origin to this <see cref="SvgTransformF"/>, and in the order specified
/// in the order parameter.
/// </summary>
/// <param name="angle">
/// The angle (extent) of the rotation, in degrees.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the rotation is applied to this
/// <see cref="SvgTransformF"/>.
/// </param>
public void Rotate(float angle, SvgTransformOrder order)
{
double radians = (angle * (Math.PI / 180.0));
float cos = (float)(Math.Cos(radians));
float sin = (float)(Math.Sin(radians));
if (order == SvgTransformOrder.Prepend)
{
float nm11 = cos * this.m11 + sin * this.m21;
float nm12 = cos * this.m12 + sin * this.m22;
float nm21 = cos * this.m21 - sin * this.m11;
float nm22 = cos * this.m22 - sin * this.m12;
this.m11 = nm11;
this.m12 = nm12;
this.m21 = nm21;
this.m22 = nm22;
}
else
{
float nm11 = this.m11 * cos - this.m12 * sin;
float nm12 = this.m11 * sin + this.m12 * cos;
float nm21 = this.m21 * cos - this.m22 * sin;
float nm22 = this.m21 * sin + this.m22 * cos;
float ndx = this.dx * cos - this.dy * sin;
float ndy = this.dx * sin + this.dy * cos;
this.m11 = nm11;
this.m12 = nm12;
this.m21 = nm21;
this.m22 = nm22;
this.dx = ndx;
this.dy = ndy;
}
}
/// <summary>
/// Applies a clockwise rotation about the specified point to this
/// <see cref="SvgTransformF"/> in the specified order.
/// </summary>
/// <param name="angle">
/// The angle (extent) of the rotation, in degrees.
/// </param>
/// <param name="point">
/// A <see cref="SvgPointF"/> that represents the center of the rotation.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the rotation is applied.
/// </param>
public void RotateAt(float angle, SvgPointF point, SvgTransformOrder order)
{
if (order == SvgTransformOrder.Prepend)
{
Translate(point.X, point.Y);
Rotate(angle);
Translate(-point.X, -point.Y);
}
else
{
Translate(-point.X, -point.Y);
Rotate(angle, SvgTransformOrder.Append);
Translate(point.X, point.Y);
}
}
/// <summary>
/// Multiplies this <see cref="SvgTransformF"/> by the matrix specified in
/// the matrix parameter, and in the order specified in the order parameter.
/// </summary>
/// <param name="matrix">
/// The <see cref="SvgTransformF"/> by which this <see cref="SvgTransformF"/>
/// is to be multiplied.
/// </param>
/// <param name="order">
/// The <see cref="TransformOrder"/> that represents the order of the
/// multiplication.
/// </param>
public void Multiply(SvgTransformF matrix, SvgTransformOrder order)
{
if (matrix == null)
{
throw new ArgumentNullException("matrix");
}
if (order == SvgTransformOrder.Prepend)
{
Multiply((SvgTransformF)matrix, this);
}
else
{
Multiply(this, (SvgTransformF)matrix);
}
}
/// <summary>
/// Applies the specified scale vector to this <see cref="SvgTransformF"/>
/// using the specified order.
/// </summary>
/// <param name="scaleX">
/// The value by which to scale this <see cref="SvgTransformF"/> in the
/// x-axis direction.
/// </param>
/// <param name="scaleY">
/// The value by which to scale this <see cref="SvgTransformF"/> in the
/// y-axis direction.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the scale vector is applied to this
/// <see cref="SvgTransformF"/>.
/// </param>
public void Scale(float scaleX, float scaleY, SvgTransformOrder order)
{
if (order == SvgTransformOrder.Prepend)
{
m11 *= scaleX;
m12 *= scaleX;
m21 *= scaleY;
m22 *= scaleY;
}
else
{
m11 *= scaleX;
m12 *= scaleY;
m21 *= scaleX;
m22 *= scaleY;
dx *= scaleX;
dy *= scaleY;
}
}
/// <summary>
/// Applies the specified translation vector to this <see cref="SvgTransformF"/>
/// in the specified order.
/// </summary>
/// <param name="offsetX">
/// The <c>x</c> value by which to translate this <see cref="SvgTransformF"/>.
/// </param>
/// <param name="offsetY">
/// The <c>y</c> value by which to translate this <see cref="SvgTransformF"/>.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the translation is applied to this <see cref="SvgTransformF"/>.
/// </param>
public void Translate(float offsetX, float offsetY, SvgTransformOrder order)
{
if (order == SvgTransformOrder.Prepend)
{
dx += offsetX * m11 + offsetY * m21;
dy += offsetX * m12 + offsetY * m22;
}
else
{
dx += offsetX;
dy += offsetY;
}
}
/// <summary>
/// Applies the specified shear vector to this <see cref="SvgTransformF"/> in
/// the specified order.
/// </summary>
/// <param name="shearX">
/// The horizontal shear factor.
/// </param>
/// <param name="shearY">
/// The vertical shear factor.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the shear is applied.
/// </param>
public void Shear(float shearX, float shearY, SvgTransformOrder order)
{
if (order == SvgTransformOrder.Prepend)
{
float nm11 = this.m11 + this.m21 * shearY;
float nm12 = this.m12 + this.m22 * shearY;
float nm21 = this.m11 * shearX + this.m21;
float nm22 = this.m12 * shearX + this.m22;
this.m11 = nm11;
this.m12 = nm12;
this.m21 = nm21;
this.m22 = nm22;
}
else
{
float nm11 = this.m11 + this.m12 * shearX;
float nm12 = this.m11 * shearY + this.m12;
float nm21 = this.m21 + this.m22 * shearX;
float nm22 = this.m21 * shearY + this.m22;
float ndx = this.dx + this.dy * shearX;
float ndy = this.dx * shearY + this.dy;
this.m11 = nm11;
this.m12 = nm12;
this.m21 = nm21;
this.m22 = nm22;
this.dx = ndx;
this.dy = ndy;
}
}
/// <summary>
/// Applies the specified scale vector to this <see cref="SvgTransformF"/>
/// using the specified order.
/// </summary>
/// <param name="scaleX">
/// The value by which to scale this <see cref="SvgTransformF"/> in the
/// x-axis direction.
/// </param>
/// <param name="scaleY">
/// The value by which to scale this <see cref="SvgTransformF"/> in the
/// y-axis direction.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the scale vector is applied to this
/// <see cref="SvgTransformF"/>.
/// </param>
public void Scale(float scaleX, float scaleY, SvgTransformOrder order)
{
if (order == SvgTransformOrder.Prepend)
{
m11 *= scaleX;
m12 *= scaleX;
m21 *= scaleY;
m22 *= scaleY;
}
else
{
m11 *= scaleX;
m12 *= scaleY;
m21 *= scaleX;
m22 *= scaleY;
dx *= scaleX;
dy *= scaleY;
}
}
/// <summary>
/// Applies a clockwise rotation about the specified point to this
/// <see cref="SvgTransformF"/> in the specified order.
/// </summary>
/// <param name="angle">
/// The angle (extent) of the rotation, in degrees.
/// </param>
/// <param name="point">
/// A <see cref="SvgPointF"/> that represents the center of the rotation.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the rotation is applied.
/// </param>
public void RotateAt(float angle, SvgPointF point, SvgTransformOrder order)
{
if (order == SvgTransformOrder.Prepend)
{
Translate(point.X, point.Y);
Rotate(angle);
Translate(-point.X, -point.Y);
}
else
{
Translate(-point.X, -point.Y);
Rotate(angle, SvgTransformOrder.Append);
Translate(point.X, point.Y);
}
}
/// <summary>
/// Applies a clockwise rotation of the specified angle about the
/// origin to this <see cref="SvgTransformF"/>, and in the order specified
/// in the order parameter.
/// </summary>
/// <param name="angle">
/// The angle (extent) of the rotation, in degrees.
/// </param>
/// <param name="order">
/// A <see cref="TransformOrder"/> that specifies the order (append or
/// prepend) in which the rotation is applied to this
/// <see cref="SvgTransformF"/>.
/// </param>
public void Rotate(float angle, SvgTransformOrder order)
{
double radians = (angle * (Math.PI / 180.0));
float cos = (float)(Math.Cos(radians));
float sin = (float)(Math.Sin(radians));
if (order == SvgTransformOrder.Prepend)
{
float nm11 = cos * this.m11 + sin * this.m21;
float nm12 = cos * this.m12 + sin * this.m22;
float nm21 = cos * this.m21 - sin * this.m11;
float nm22 = cos * this.m22 - sin * this.m12;
this.m11 = nm11;
this.m12 = nm12;
this.m21 = nm21;
this.m22 = nm22;
}
else
{
float nm11 = this.m11 * cos - this.m12 * sin;
float nm12 = this.m11 * sin + this.m12 * cos;
float nm21 = this.m21 * cos - this.m22 * sin;
float nm22 = this.m21 * sin + this.m22 * cos;
float ndx = this.dx * cos - this.dy * sin;
float ndy = this.dx * sin + this.dy * cos;
this.m11 = nm11;
this.m12 = nm12;
this.m21 = nm21;
this.m22 = nm22;
this.dx = ndx;
this.dy = ndy;
}
}
/// <summary>
/// Multiplies this <see cref="SvgTransformF"/> by the matrix specified in
/// the matrix parameter, and in the order specified in the order parameter.
/// </summary>
/// <param name="matrix">
/// The <see cref="SvgTransformF"/> by which this <see cref="SvgTransformF"/>
/// is to be multiplied.
/// </param>
/// <param name="order">
/// The <see cref="TransformOrder"/> that represents the order of the
/// multiplication.
/// </param>
public void Multiply(SvgTransformF matrix, SvgTransformOrder order)
{
if (matrix == null)
{
throw new ArgumentNullException("matrix");
}
if (order == SvgTransformOrder.Prepend)
{
Multiply((SvgTransformF)matrix, this);
}
else
{
Multiply(this, (SvgTransformF)matrix);
}
}
