Vector Structure

Vector class for operator overloading (Delphi 2006 and later).

Syntax

Visual Basic

public struct Vector : IDeserializationCallback, IDisposable, IXmlSerializable { public TDouble1DAccess Values; public TSingle1DAccess SValues; public TDCplx1DAccess CValues; public TSCplx1DAccess SCValues; }

File

MtxExpr.cs

Remarks

Declare Vector instead of TVec to take advantage of operator overloading in D2006 and later. Be carefull to declare Vector only for local variables with short lifetime. Call the Create method for Vector, if the variable is a global variable or a variable with a longer life. It also makes sense to continue to use TVec for global vars. If the Create method (constuctor) is not called, the Vector record obtains TVec object from object cache (fastest create). If the Create mehod is called, the TVec object is created in the usual way (slower). Object cache has limited size.

Example

var b, c: Vector; bv: TVec; begin b := Vector(TDoubleArray.Create(1,1,1,1)); b = [1,1,1,1]; bv := b; // b and bv point to same data object bv.Scale(2); TVec(b).Scale(2); //an alternative way to scale c := b*2 + Cplx(2,3); c := b*2 + 2 + 3i c := b*bv; mix Vector and TVec bv.Add(c); //pass Vector type and implicitely convert to TVec end;

Group

Classes

Links

Vector Fields, Vector Methods, Vector Operators, Vector Properties, Vector Members, Classes, Example

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