/// <summary>
/// Compute vector coordinates from a length and angle.
/// </summary>
/// <param name="length">The vector length.</param>
/// <param name="angle">The vector angle.</param>
/// <returns>The address of source vector.</returns>
public static FTVector FromPolar(Fixed16Dot16 length, Fixed16Dot16 angle)
{
FTVector vec;
FT.FT_Vector_From_Polar(out vec, (IntPtr)length.Value, (IntPtr)angle.Value);
return(vec);
}
/// <summary><para>
/// Return the unit vector corresponding to a given angle. After the call, the value of ‘vec.x’ will be
/// ‘sin(angle)’, and the value of ‘vec.y’ will be ‘cos(angle)’.
/// </para><para>
/// This function is useful to retrieve both the sinus and cosinus of a given angle quickly.
/// </para></summary>
/// <param name="angle">The address of angle.</param>
/// <returns>The address of target vector.</returns>
public static FTVector Unit(Fixed16Dot16 angle)
{
FTVector vec;
FT.FT_Vector_Unit(out vec, (IntPtr)angle.Value);
return(vec);
}
/// <summary>
/// Initializes a new instance of the <see cref="FTMatrix"/> struct.
/// </summary>
/// <param name="xx">Matrix coefficient XX.</param>
/// <param name="xy">Matrix coefficient XY.</param>
/// <param name="yx">Matrix coefficient YX.</param>
/// <param name="yy">Matrix coefficient YY.</param>
public FTMatrix(Fixed16Dot16 xx, Fixed16Dot16 xy, Fixed16Dot16 yx, Fixed16Dot16 yy)
: this()
{
this.XX = xx;
this.XY = xy;
this.YX = yx;
this.YY = yy;
}
/// <summary>
/// Compute both the length and angle of a given vector.
/// </summary>
/// <param name="length">The vector length.</param>
/// <param name="angle">The vector angle.</param>
public void Polarize(out Fixed16Dot16 length, out Fixed16Dot16 angle)
{
IntPtr tmpLength, tmpAngle;
FT.FT_Vector_Polarize(ref this, out tmpLength, out tmpAngle);
length = Fixed16Dot16.FromRawValue((int)tmpLength);
angle = Fixed16Dot16.FromRawValue((int)tmpAngle);
}
public static Fixed16Dot16 DivFix(int a, Fixed16Dot16 b)
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_DivFix((IntPtr)a, (IntPtr)b.Value)));
}
public static Fixed16Dot16 MulDiv(Fixed16Dot16 a, Fixed16Dot16 b, Fixed16Dot16 c)
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_MulDiv((IntPtr)a.Value, (IntPtr)b.Value, (IntPtr)c.Value)));
}
public static Fixed16Dot16 AngleDiff(Fixed16Dot16 angle1, Fixed16Dot16 angle2)
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_Angle_Diff((IntPtr)angle1.Value, (IntPtr)angle2.Value)));
}
public static Fixed16Dot16 Atan2(Fixed16Dot16 x, Fixed16Dot16 y)
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_Atan2((IntPtr)x.Value, (IntPtr)y.Value)));
}
public static Fixed16Dot16 Tan(Fixed16Dot16 angle)
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_Tan((IntPtr)angle.Value)));
}
public static Fixed16Dot16 FloorFix(Fixed16Dot16 a)
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_FloorFix((IntPtr)a.Value)));
}
/// <summary>
/// Initializes a new instance of the <see cref="FTVector"/> struct.
/// </summary>
/// <param name="x">The horizontal coordinate.</param>
/// <param name="y">The vertical coordinate.</param>
public FTVector(Fixed16Dot16 x, Fixed16Dot16 y)
: this()
{
this.x = (IntPtr)x.Value;
this.y = (IntPtr)y.Value;
}
/// <summary>
/// Return the length of a given vector.
/// </summary>
/// <returns>The vector length, expressed in the same units that the original vector coordinates.</returns>
public Fixed16Dot16 Length()
{
return(Fixed16Dot16.FromRawValue((int)FT.FT_Vector_Length(ref this)));
}
/// <summary>
/// Rotate a vector by a given angle.
/// </summary>
/// <param name="angle">The address of angle.</param>
public void Rotate(Fixed16Dot16 angle)
{
FT.FT_Vector_Rotate(ref this, (IntPtr)angle.Value);
}
/// <summary>
/// Reset a stroker object's attributes.
/// </summary>
/// <remarks>
/// The radius is expressed in the same units as the outline coordinates.
/// </remarks>
/// <param name="radius">The border radius.</param>
/// <param name="lineCap">The line cap style.</param>
/// <param name="lineJoin">The line join style.</param>
/// <param name="miterLimit">
/// The miter limit for the <see cref="StrokerLineJoin.MiterFixed"/> and
/// <see cref="StrokerLineJoin.MiterVariable"/> line join styles, expressed as 16.16 fixed point value.
/// </param>
public void Set(int radius, StrokerLineCap lineCap, StrokerLineJoin lineJoin, Fixed16Dot16 miterLimit)
{
if (disposed)
{
throw new ObjectDisposedException("Stroker", "Cannot access a disposed object.");
}
FT.FT_Stroker_Set(Reference, radius, lineCap, lineJoin, (IntPtr)miterLimit.Value);
}
public static Fixed16Dot16 CeilFix(Fixed16Dot16 a)
{
return(Fixed16Dot16.FromRawValue((int)FT_CeilFix((IntPtr)a.Value)));
}
/// <summary> /// Reset a stroker object's attributes. /// </summary> /// <remarks> /// The radius is expressed in the same units as the outline coordinates. /// </remarks> /// <param name="radius">The border radius.</param> /// <param name="lineCap">The line cap style.</param> /// <param name="lineJoin">The line join style.</param> /// <param name="miterLimit"> /// The miter limit for the <see cref="StrokerLineJoin.MiterFixed"/> and /// <see cref="StrokerLineJoin.MiterVariable"/> line join styles, expressed as 16.16 fixed point value. /// </param> public void Set(int radius, StrokerLineCap lineCap, StrokerLineJoin lineJoin, Fixed16Dot16 miterLimit) => FT.FT_Stroker_Set(Reference, radius, lineCap, lineJoin, (IntPtr)miterLimit.Value);
