Struct: RT.Geometry.PointD

• Assembly: RT.Geometry, Version=1.0.0.9999, Culture=neutral, PublicKeyToken=null
• Namespace: RT.Geometry
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  Inherits from:

  • System.ValueType
    • object
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  Implements:

  • System.IEquatable<RT.Geometry.PointD> (directly)

Summary

Encapsulates a double-precision point.

Constructors

PointD(double x, double y)	Initializes a double-precision point with the specified co-ordinates.
PointD(double angle)	Initializes a double-precision point as a unit vector at a specified angle (in radians).
PointD(PointF pointF)	Converts the provided PointF to a PointD.

Instance methods

double	CrossZ(PointD other)	Returns the Z-component of the cross product of this vector with other. The Z-component is equal to the product of: the lengths of the two vectors and the sin of the angle between them. Note that the X and Y components of a cross product of 2D vectors are always zero.
void	DecomposeAlong(PointD vector, out double lenAlong, out double lenNormal)	Decomposes this vector into components relative to another vector.
void	Deconstruct(out double x, out double y)	Deconstructs this point into a tuple.
double	Distance(PointD other)	Calculates the distance between this point and other.
double	Dot(PointD other)	Returns the dot product of this vector with the specified one.
bool	Equals(object obj) Overrides: object.Equals(object)	Compares two PointD objects for equality.
bool	Equals(PointD other) Implements: IEquatable<PointD>.Equals(PointD)
int	GetHashCode() Overrides: object.GetHashCode()	Returns a hash code for the current PointD.
double	LengthProjectedOnto(PointD vector)	Returns the length of this vector's projection onto the specified vector.
double	LengthProjectedOnto(double angle)	Returns the length of this vector's projection onto a unit vector at the specified angle.
PointD	ProjectedOnto(PointD vector)	Returns a vector representing the projection (i.e. length and direction) of this vector onto the specified vector.
PointD	RecomposeVector(double lenAlong, double lenNormal)	Performs the inverse of PointD.DecomposeAlong(PointD, out double, out double) using the current vector as the reference vector.
PointD	Reflected(PointD axis1, PointD axis2)	Reflects this point about an axis given by any two points on that axis.
PointD	Rotate(double angle)	Rotates the current point by the specified angle about the origin. (see also remarks)
PointD	Rotate(double angle, PointD about)	Rotates the current point by the specified angle about the specified point. (see also remarks)
PointD	Rotate90()	Rotates this vector by 90 degrees. (see also remarks)
PointD	Rotated(double angle)	Returns a vector of the same length as this vector, but rotated by the specified angle. (see also remarks)
PointD	RotateDeg(double angle)	Rotates the current point by the specified angle about the origin. (see also remarks)
PointD	RotateDeg(double angle, PointD about)	Rotates the current point by the specified angle about the specified point. (see also remarks)
PointD	RotateNeg90()	Rotates this vector by -90 degrees. (see also remarks)
PointF	ToPointF()	Converts the current PointD object to a PointF. Note that doing so loses precision.
string	ToString() Overrides: object.ToString()	Provides a string representation of the current PointD.

Operators

PointD	operator+(PointD one, PointD other)	Performs vector addition, returning the result.
PointD	operator/(PointD vector, double scalar)	Scales a vector by 1 / scalar (i.e. performs scalar division).
bool	operator==(PointD one, PointD other)	Compares two PointD objects for equality.
bool	operator!=(PointD one, PointD other)	Compares two PointD objects for inequality.
PointD	operator*(double scalar, PointD vector)	Scales a vector by a scalar.
PointD	operator*(PointD vector, double scalar)
PointD	operator-(PointD left, PointD right)	Performs vector subtraction, returning the result.
PointD	operator-(PointD vector)	Performs unary vector negation (i.e. the resulting point is of the same length but pointing in the opposite direction).

Instance properties

double	Angle	Returns the theta (angle from the positive x-axis) of the vector represented by this PointD. (see also remarks)
double	Length	Calculates the length of this vector — or, equivalently, the distance between this point and the origin.
PointD	Normalized	Returns the unit vector in the same direction as this one.
PointD	ReflectedAboutXAxis	Negates the Y-coordinate, which reflects this point about the X-axis.
PointD	ReflectedAboutYAxis	Negates the X-coordinate, which reflects this point about the Y-axis.
double	SquareLength	Calculates the squared distance between this point and the origin.

Instance fields

double	X	X-co-ordinate of the point.
double	Y	Y-co-ordinate of the point.