Struct Point

Structure defining a point in three-dimensional projective space.

Implements
IEquatable<Point>
Namespace: BRIDGES.Geometry.Projective3D
Assembly: BRIDGES.dll
Syntax
public struct Point : IAddable<Point>, IGroupAction<Point, double>

Constructors

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Point(Point)

Initialises a new instance of the Point structure from another Point.

Declaration
public Point(Point point)
Parameters
Type Name Description
Point point

Point to deep copy.
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Point(Double, Double, Double, Double)

Initialises a new instance of the Point structure by defining its four coordinates.

Declaration
public Point(double x0, double x1, double x2, double x3)
Parameters
Type Name Description
Double x0

Value of the first coordinate.
Double x1

Value of the second coordinate.
Double x2

Value of the third coordinate.
Double x3

Value of the fourth coordinate.
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Point(Double[])

Initialises a new instance of Point structure by defining its coordinates.

Declaration
public Point(double[] coordinates)
Parameters
Type Name Description
Double[] coordinates

Value of the coordinates.

Properties

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Dimension

Gets the dimension of this Point's projective space.

Declaration
public readonly int Dimension { get; }
Property Value
Type Description
Int32
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Item[Int32]

Gets or sets the value of the coordinate at the given index.

Declaration
public double this[int index] { get; set; }
Parameters
Type Name Description
Int32 index

Index of the coordinate to get or set.
Property Value
Type Description
Double

The value of the coordinate at the given index.
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Zero

Gets a new Point with coordinates (0.0, 0.0, 0.0, 0.0).

Declaration
public static readonly Point Zero { get; }
Property Value
Type Description
Point

Methods

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Add(Point, Point)

Computes the addition of two Point.

Declaration
public static Point Add(Point left, Point right)
Parameters
Type Name Description
Point left

Point for the addition.
Point right

Point for the addition.
Returns
Type Description
Point

The new Point resulting from the addition.
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Divide(Point, Double)

Computes the scalar division of a Point with a -precision real number.

Declaration
public static Point Divide(Point operand, double divisor)
Parameters
Type Name Description
Point operand

Point to divide.
Double divisor

-precision real number to divide with.
Returns
Type Description
Point

The new Point resulting from the scalar division.
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Equals(Point)

Evaluates whether the current Point is equal to another Point.

Declaration
public bool Equals(Point other)
Parameters
Type Name Description
Point other

Point to compare with.
Returns
Type Description
Boolean

true if the two Point are equal, false otherwise.
Remarks

Two Point are equal if their coordinates are equal.

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Equals(Object)

Structure defining a point in three-dimensional projective space.

Declaration
public override bool Equals(object obj)
Parameters
Type Name Description
Object obj
Returns
Type Description
Boolean
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GetCoordinates()

Gets the coordinates of the current Point.

Declaration
public double[] GetCoordinates()
Returns
Type Description
Double[]

The array representation of the Point's coordinates.
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GetHashCode()

Structure defining a point in three-dimensional projective space.

Declaration
public override int GetHashCode()
Returns
Type Description
Int32
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Multiply(Point, Double)

Computes the scalar multiplication of a Point with a number.

Declaration
public static Point Multiply(Point operand, double factor)
Parameters
Type Name Description
Point operand

Point to multiply.
Double factor

number.
Returns
Type Description
Point

The new Point resulting from the scalar multiplication.
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Multiply(Double, Point)

Computes the scalar multiplication of a Point with a number.

Declaration
public static Point Multiply(double factor, Point operand)
Parameters
Type Name Description
Double factor

number.
Point operand

Point to multiply.
Returns
Type Description
Point

The new Point resulting from the scalar multiplication.
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Subtract(Point, Point)

Computes the subtraction of two Point.

Declaration
public static Point Subtract(Point left, Point right)
Parameters
Type Name Description
Point left

Point to subtract.
Point right

Point to subtract with.
Returns
Type Description
Point

The new Point resulting from the subtraction.
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ToString()

Structure defining a point in three-dimensional projective space.

Declaration
public override string ToString()
Returns
Type Description
String

Operators

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Addition(Point, Point)

Computes the addition of two Point.

Declaration
public static Point operator +(Point left, Point right)
Parameters
Type Name Description
Point left

Point for the addition.
Point right

Point for the addition.
Returns
Type Description
Point

The new Point resulting from the addition.
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Division(Point, Double)

Computes the scalar division of a Point with a -precision real number.

Declaration
public static Point operator /(Point operand, double divisor)
Parameters
Type Name Description
Point operand

Point to divide.
Double divisor

-precision real number to divide with.
Returns
Type Description
Point

The new Point resulting from the scalar division.
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Explicit(Point to Point)

Converts a Point into a Point.

Declaration
public static explicit operator Point(Point point)
Parameters
Type Name Description
Point point

Point to convert.
Returns
Type Description
Point

The new Point resulting from the conversion.
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Multiply(Point, Double)

Computes the scalar multiplication of a Point with a number.

Declaration
public static Point operator *(Point operand, double factor)
Parameters
Type Name Description
Point operand

Point to multiply.
Double factor

number.
Returns
Type Description
Point

The new Point resulting from the scalar multiplication.
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Multiply(Double, Point)

Computes the scalar multiplication of a Point with a number.

Declaration
public static Point operator *(double factor, Point operand)
Parameters
Type Name Description
Double factor

number.
Point operand

Point to multiply.
Returns
Type Description
Point

The new Point resulting from the scalar multiplication.
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Subtraction(Point, Point)

Computes the subtraction of two Point.

Declaration
public static Point operator -(Point left, Point right)
Parameters
Type Name Description
Point left

Point to subtract.
Point right

Point to subtract with.
Returns
Type Description
Point

The new Point resulting from the subtraction.
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UnaryNegation(Point)

Computes the opposite of the given Point.

Declaration
public static Point operator -(Point operand)
Parameters
Type Name Description
Point operand

Point to be opposed.
Returns
Type Description
Point

The new Point, opposite of the initial one.

Explicit Interface Implementations

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IAddable<Point>.Add(Point)

Computes the addition of the current element with another element on the right.

Declaration
Point IAddable<Point>.Add(Point right)
Parameters
Type Name Description
Point right
Returns
Type Description
Point

The new element resulting from the addition.
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IGroupAction<Point, Double>.Divide(Double)

Computes the right scalar division of the current element.

Declaration
Point IGroupAction<Point, double>.Divide(double divisor)
Parameters
Type Name Description
Double divisor
Returns
Type Description
Point

The new element resulting from the scalar dividion.
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IGroupAction<Point, Double>.Multiply(Double)

Computes the right scalar multiplication of the current element.

Declaration
Point IGroupAction<Point, double>.Multiply(double factor)
Parameters
Type Name Description
Double factor
Returns
Type Description
Point

The new element resulting from the scalar multiplication.

Implements

IEquatable<>