b311480e |
1 | // Created on: 2005-09-08 |
2 | // Created by: Alexander GRIGORIEV |
973c2be1 |
3 | // Copyright (c) 2005-2014 OPEN CASCADE SAS |
b311480e |
4 | // |
973c2be1 |
5 | // This file is part of Open CASCADE Technology software library. |
b311480e |
6 | // |
d5f74e42 |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
973c2be1 |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
b311480e |
12 | // |
973c2be1 |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
7fd59977 |
15 | |
16 | #include <gp_Pnt2d.hxx> |
17 | |
18 | #ifndef Bnd_B2x_RealLast |
19 | #define Bnd_B2x_RealLast RealType(1e30); |
20 | #endif |
21 | |
22 | /** |
23 | * Empty constructor |
24 | */ |
25 | inline Bnd_B2x::Bnd_B2x () |
26 | { |
27 | Clear(); |
28 | } |
29 | |
30 | /** |
31 | * Constructor. |
32 | * @param theCenter |
33 | * Center of the created box |
34 | * @param theHSize |
35 | * Half-diagonal of the box, both X and Y should be non-negative |
36 | */ |
37 | inline Bnd_B2x::Bnd_B2x (const gp_XY& theCenter, |
38 | const gp_XY& theHSize) |
39 | { |
40 | myCenter[0] = RealType(theCenter.X()); |
41 | myCenter[1] = RealType(theCenter.Y()); |
42 | myHSize[0] = RealType(theHSize.X()); |
43 | myHSize[1] = RealType(theHSize.Y()); |
44 | } |
45 | |
46 | /** |
47 | * Reset the box data. |
48 | */ |
49 | inline void Bnd_B2x::Clear () |
50 | { |
51 | myCenter[0] = Bnd_B2x_RealLast; |
52 | myCenter[1] = Bnd_B2x_RealLast; |
53 | myHSize[0] = -Bnd_B2x_RealLast; |
54 | myHSize[1] = -Bnd_B2x_RealLast; |
55 | } |
56 | |
57 | /** |
58 | * Check if the box is empty. |
59 | */ |
60 | inline Standard_Boolean Bnd_B2x::IsVoid () const |
61 | { |
62 | return (myHSize[0] < -1e-5); |
63 | } |
64 | |
65 | /** |
66 | * Update the box by point. |
67 | */ |
68 | inline void Bnd_B2x::Add (const gp_Pnt2d& thePnt) |
69 | { |
70 | Add (thePnt.XY()); |
71 | } |
72 | |
73 | /** |
74 | * Update the box by another box. |
75 | */ |
76 | inline void Bnd_B2x::Add (const Bnd_B2x& theBox) |
77 | { |
78 | if (theBox.IsVoid() == Standard_False) { |
79 | Add (theBox.CornerMin()); |
80 | Add (theBox.CornerMax()); |
81 | } |
82 | } |
83 | |
84 | /** |
85 | * Query a box corner. |
86 | */ |
87 | inline gp_XY Bnd_B2x::CornerMin () const |
88 | { |
89 | return gp_XY (myCenter[0] - myHSize[0], myCenter[1] - myHSize[1]); |
90 | } |
91 | |
92 | /** |
93 | * Query a box corner. |
94 | */ |
95 | inline gp_XY Bnd_B2x::CornerMax () const |
96 | { |
97 | return gp_XY (myCenter[0] + myHSize[0], myCenter[1] + myHSize[1]); |
98 | } |
99 | |
100 | /** |
101 | * Query the square diagonal. |
102 | */ |
103 | inline Standard_Real Bnd_B2x::SquareExtent () const |
104 | { |
105 | return 4 * (myHSize[0] * myHSize[0] + myHSize[1] * myHSize[1]); |
106 | } |
107 | |
108 | /** |
109 | * Set the Center coordinates. |
110 | */ |
111 | inline void Bnd_B2x::SetCenter (const gp_XY& theCenter) |
112 | { |
113 | myCenter[0] = RealType(theCenter.X()); |
114 | myCenter[1] = RealType(theCenter.Y()); |
115 | } |
116 | |
117 | /** |
118 | * Set the HSize coordinates. |
119 | */ |
120 | inline void Bnd_B2x::SetHSize (const gp_XY& theHSize) |
121 | { |
122 | myHSize[0] = RealType(theHSize.X()); |
123 | myHSize[1] = RealType(theHSize.Y()); |
124 | } |
125 | |
126 | /** |
127 | * Increase the box. |
128 | * @param aDiff |
129 | * absolute value of this parameter is added to the box size in all dimensions. |
130 | */ |
131 | inline void Bnd_B2x::Enlarge (const Standard_Real aDiff) |
132 | { |
133 | const RealType aD = RealType(Abs(aDiff)); |
134 | myHSize[0] += aD; |
135 | myHSize[1] += aD; |
136 | } |
137 | |
138 | /** |
139 | * Intersection Box - Point |
140 | */ |
141 | inline Standard_Boolean Bnd_B2x::IsOut (const gp_XY& thePnt) const |
142 | { |
143 | return (Abs(RealType(thePnt.X()) - myCenter[0]) > myHSize[0] || |
144 | Abs(RealType(thePnt.Y()) - myCenter[1]) > myHSize[1]); |
145 | } |
146 | |
147 | /** |
148 | * Intersection Box-Box. |
149 | */ |
150 | inline Standard_Boolean Bnd_B2x::IsOut (const Bnd_B2x& theBox) const |
151 | { |
152 | return (Abs(theBox.myCenter[0]-myCenter[0]) > theBox.myHSize[0]+myHSize[0] || |
153 | Abs(theBox.myCenter[1]-myCenter[1]) > theBox.myHSize[1]+myHSize[1]); |
154 | } |
155 | |
156 | /** |
157 | * Test the complete inclusion of this box in theBox. |
158 | */ |
159 | inline Standard_Boolean Bnd_B2x::IsIn (const Bnd_B2x& theBox) const |
160 | { |
161 | return (Abs(theBox.myCenter[0]-myCenter[0]) < theBox.myHSize[0]-myHSize[0] && |
162 | Abs(theBox.myCenter[1]-myCenter[1]) < theBox.myHSize[1]-myHSize[1]); |
163 | } |
164 | |