Math¶

Math functions

function Distance(X1, Y1, X2, Y2: Double; Algo: EDistanceAlgo = EDistanceAlgo.Euclidean): Double;

Calculates the distance between X1,Y1 and X2,Y2. If not provided the Algo parameter defaults to Euclidean. But can be any of these:

function Distance(P1, P2: TPoint; Algo: EDistanceAlgo = EDistanceAlgo.Euclidean): Double;

Calculates the distance between two points. If not provided the Algo parameter defaults to Euclidean. But can be any of these:

function LogN(base, x: Double): Double;

function Sar(x: Integer; Shift: Byte): Integer;

function Ror(x: UInt32; Shift: Byte): UInt32;

function Rol(x: UInt32; Shift: Byte): UInt32;

function DegToRad(Deg: Double): Double;

function RadToDeg(Rad: Double): Double;

function RadNormalize(Rad: Double): Double;

function DegNormalize(Deg: Double): Double;

function Log2(x: Double): Double;

function Log10(x: Double): Double;

function NextPower2(n: Integer): Integer;

function Modulo(X, Y: Integer): Integer;

function Modulo(X, Y: Double): Double;

function DeltaAngle(DegreesA, DegreesB: Double; R: Double = 360): Double;

function CrossProduct(r, p, q: TPoint): Int64;

function CrossProduct(rx,ry, px,py, qx,qy: Double): Double;

function LinesIntersect(P1, P2, Q1, Q2: TPoint): Boolean;

function LinesIntersect(P1, P2, Q1, Q2: TPoint; out Where: TPoint): Boolean;

function DistToLine(P, P1, P2: TPoint; out Nearest: TPoint): Double;

function DistToLine(P, P1, P2: TPoint): Double;

function IsNumber(Value: Single): Boolean;

function IsNumber(const Value: Double): Boolean;