1 // Created by: NW,JPB,CAL
2 // Copyright (c) 1991-1999 Matra Datavision
3 // Copyright (c) 1999-2012 OPEN CASCADE SAS
5 // The content of this file is subject to the Open CASCADE Technology Public
6 // License Version 6.5 (the "License"). You may not use the content of this file
7 // except in compliance with the License. Please obtain a copy of the License
8 // at http://www.opencascade.org and read it completely before using this file.
10 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
13 // The Original Code and all software distributed under the License is
14 // distributed on an "AS IS" basis, without warranty of any kind, and the
15 // Initial Developer hereby disclaims all such warranties, including without
16 // limitation, any warranties of merchantability, fitness for a particular
17 // purpose or non-infringement. Please see the License for the specific terms
18 // and conditions governing the rights and limitations under the License.
21 // Modified 27/12/98 : FMN ; PERF: OPTIMISATION LOADER (LOPTIM)
26 //-Design Declaration des variables specifiques aux vecteurs
28 //-Warning Un vecteur est defini par ses composantes ou par
30 // Il peut etre normalise
39 #include <Graphic3d_Vector.ixx>
41 #include <Standard_Boolean.hxx>
45 //-Global data definitions
47 #define Graphic3d_Vector_MyEpsilon 0.000001
49 // -- les coordonnees du vecteur
50 // MyX : Standard_ShortReal;
51 // MyY : Standard_ShortReal;
52 // MyZ : Standard_ShortReal;
54 // -- la norme du vecteur
55 // MyNorme : Standard_ShortReal;
59 Graphic3d_Vector::Graphic3d_Vector ():
60 MyX (Standard_ShortReal (1.0)),
61 MyY (Standard_ShortReal (1.0)),
62 MyZ (Standard_ShortReal (1.0)),
63 MyNorme (Standard_ShortReal (1.0)) {
66 Graphic3d_Vector::Graphic3d_Vector (const Standard_Real AX, const Standard_Real AY, const Standard_Real AZ):
67 MyX (Standard_ShortReal (AX)),
68 MyY (Standard_ShortReal (AY)),
69 MyZ (Standard_ShortReal (AZ)),
70 MyNorme (Standard_ShortReal (Graphic3d_Vector::NormeOf (AX, AY, AZ))) {
73 Graphic3d_Vector::Graphic3d_Vector (const Graphic3d_Vertex& APoint1, const Graphic3d_Vertex& APoint2) {
75 Standard_Real X1, Y1, Z1;
76 Standard_Real X2, Y2, Z2;
78 APoint1.Coord (X1, Y1, Z1);
79 APoint2.Coord (X2, Y2, Z2);
81 MyX = Standard_ShortReal (X2 - X1);
82 MyY = Standard_ShortReal (Y2 - Y1);
83 MyZ = Standard_ShortReal (Z2 - Z1);
85 MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (X2 - X1, Y2 - Y1, Z2 - Z1));
93 void Graphic3d_Vector::Coord (Standard_Real& AX, Standard_Real& AY, Standard_Real& AZ) const {
95 AX = Standard_Real (MyX);
96 AY = Standard_Real (MyY);
97 AZ = Standard_Real (MyZ);
101 Standard_Real Graphic3d_Vector::X () const {
103 return Standard_Real (MyX);
107 Standard_Real Graphic3d_Vector::Y () const {
109 return Standard_Real (MyY);
113 Standard_Real Graphic3d_Vector::Z () const {
115 return Standard_Real (MyZ);
119 void Graphic3d_Vector::Normalize () {
121 if (Abs (MyNorme) <= RealEpsilon ())
122 Graphic3d_VectorError::Raise ("The norm is null");
124 if (!IsNormalized()) // CQO CTS40181
131 MyNorme = Standard_ShortReal (1.0);
135 void Graphic3d_Vector::SetCoord (const Standard_Real Xnew, const Standard_Real Ynew, const Standard_Real Znew) {
137 MyX = Standard_ShortReal (Xnew);
138 MyY = Standard_ShortReal (Ynew);
139 MyZ = Standard_ShortReal (Znew);
141 MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
145 void Graphic3d_Vector::SetXCoord (const Standard_Real Xnew) {
147 MyX = Standard_ShortReal (Xnew);
149 MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
153 void Graphic3d_Vector::SetYCoord (const Standard_Real Ynew) {
155 MyY = Standard_ShortReal (Ynew);
157 MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
161 void Graphic3d_Vector::SetZCoord (const Standard_Real Znew) {
163 MyZ = Standard_ShortReal (Znew);
165 MyNorme = Standard_ShortReal (Graphic3d_Vector::NormeOf (Standard_Real (MyX), Standard_Real (MyY), Standard_Real (MyZ)));
169 Standard_Boolean Graphic3d_Vector::LengthZero () const {
171 return (Abs (Standard_Real (MyNorme)) <= RealEpsilon ());
175 Standard_Boolean Graphic3d_Vector::IsNormalized () const {
177 return (Abs (Standard_Real (MyNorme) - 1.0) <=
178 Graphic3d_Vector_MyEpsilon);
182 Standard_Boolean Graphic3d_Vector::IsParallel (const Graphic3d_Vector& AV1, const Graphic3d_Vector& AV2) {
184 Standard_Real aDif1 = 0, aDif2 = 0, aDif3 = 0;
186 aDif1 = AV1.X () * AV2.Y () - AV1.Y () * AV2.X ();
187 aDif2 = AV1.X () * AV2.Z () - AV1.Z () * AV2.X ();
188 aDif3 = AV1.Y () * AV2.Z () - AV1.Z () * AV2.Y ();
190 return ( (Abs (aDif1) <= Graphic3d_Vector_MyEpsilon) &&
191 (Abs (aDif2) <= Graphic3d_Vector_MyEpsilon) &&
192 (Abs (aDif3) <= Graphic3d_Vector_MyEpsilon) );
195 Standard_Real Graphic3d_Vector::NormeOf (const Standard_Real AX, const Standard_Real AY, const Standard_Real AZ) {
197 return (Sqrt (AX*AX+AY*AY+AZ*AZ));
201 Standard_Real Graphic3d_Vector::NormeOf (const Graphic3d_Vector& AVector) {
203 Standard_Real X, Y, Z;
205 AVector.Coord(X, Y, Z);
206 return (Graphic3d_Vector::NormeOf (X, Y, Z));