Platform eXtended Library (PXL)

Units

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Types

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Identifiers

record TPoint2i

DescriptionHierarchyFieldsMethodsProperties

Unit

PXL.Types

Declaration

type TPoint2i = record

Description

2D integer vector.

Overview

Fields

X: VectorInt;
Y: VectorInt;

Methods

function Angle: VectorFloat; inline;
function Cross(const Point: TPoint2i): VectorInt; inline;
function Distance(const Point: TPoint2i): VectorFloat; inline;
function Dot(const Point: TPoint2i): VectorInt; inline;
function Empty: Boolean; inline;
function InsideTriangle(const Vertex1, Vertex2, Vertex3: TPoint2i): Boolean;
function Length: VectorFloat; inline;
function Lerp(const Point: TPoint2i; const Theta: VectorFloat): TPoint2i;
function Swap: TPoint2i; inline;

Description

Fields

X: VectorInt;

The coordinate in 2D space.

Y: VectorInt;

The coordinate in 2D space.

Methods

function Angle: VectorFloat; inline;

Returns an angle (in radians) at which the current vector is pointing at.

function Cross(const Point: TPoint2i): VectorInt; inline;

Calculates a cross product between current and the specified 2D vector, or analog of thereof.

function Distance(const Point: TPoint2i): VectorFloat; inline;

Calculates distance between current and given points.

function Dot(const Point: TPoint2i): VectorInt; inline;

Calculates a dot product between current and the specified 2D vector. The dot product is an indirect measure of the angle between two vectors.

function Empty: Boolean; inline;

Tests whether both X and Y are zero.

function InsideTriangle(const Vertex1, Vertex2, Vertex3: TPoint2i): Boolean;

Tests whether current point is inside the triangle specified by given three vertices.

function Length: VectorFloat; inline;

Returns length of current vector.

function Lerp(const Point: TPoint2i; const Theta: VectorFloat): TPoint2i;

Interpolates between current and destination 2D integer vectors.

Parameters
Point
The destination vector to be used in the interpolation
Theta
The mixture of the two vectors with the a range of [0..1].
function Swap: TPoint2i; inline;

Returns vector with X and Y swapped.

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