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b311480e | 1 | // Created on: 1993-06-15 |
2 | // Created by: Didier PIFFAULT | |
3 | // Copyright (c) 1993-1999 Matra Datavision | |
973c2be1 | 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e | 5 | // |
973c2be1 | 6 | // This file is part of Open CASCADE Technology software library. |
b311480e | 7 | // |
d5f74e42 | 8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
12 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 13 | // |
973c2be1 | 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. | |
0d88155b | 16 | |
fc9b36d6 | 17 | #include <BRepMesh_CircleTool.hxx> |
18 | #include <BRepMesh_GeomTool.hxx> | |
19 | #include <gp_Circ2d.hxx> | |
0d88155b | 20 | #include <Precision.hxx> |
fc9b36d6 | 21 | #include <BRepMesh_Circle.hxx> |
0d88155b | 22 | #include <BRepMesh_CircleInspector.hxx> |
0d88155b O |
23 | |
24 | //======================================================================= | |
25 | //function : Inspect | |
26 | //purpose : | |
0d88155b | 27 | //======================================================================= |
fc9b36d6 | 28 | NCollection_CellFilter_Action BRepMesh_CircleInspector::Inspect( |
29 | const Standard_Integer theTargetIndex) | |
0d88155b | 30 | { |
fc9b36d6 | 31 | const BRepMesh_Circle& aCircle = myCircles(theTargetIndex); |
32 | Standard_Real aRadius = aCircle.Radius(); | |
33 | if(aRadius < 0.) | |
0d88155b | 34 | return CellFilter_Purge; |
fc9b36d6 | 35 | |
36 | const gp_XY& aLoc = aCircle.Location(); | |
37 | ||
38 | if ((myPoint - aLoc).SquareModulus() - (aRadius * aRadius) <= myTolerance) | |
39 | myResIndices.Append(theTargetIndex); | |
40 | ||
0d88155b O |
41 | return CellFilter_Keep; |
42 | } | |
43 | ||
44 | ||
45 | //======================================================================= | |
46 | //function : BRepMesh_CircleTool | |
47 | //purpose : | |
48 | //======================================================================= | |
fc9b36d6 | 49 | BRepMesh_CircleTool::BRepMesh_CircleTool( |
50 | const BRepMeshCol::Allocator& theAllocator) | |
51 | : myTolerance (Precision::PConfusion() * Precision::PConfusion()), | |
52 | myAllocator (theAllocator), | |
53 | myCellFilter(10, theAllocator), | |
54 | mySelector (myTolerance, 64, theAllocator) | |
0d88155b | 55 | { |
0d88155b O |
56 | } |
57 | ||
58 | //======================================================================= | |
59 | //function : BRepMesh_CircleTool | |
60 | //purpose : | |
61 | //======================================================================= | |
fc9b36d6 | 62 | BRepMesh_CircleTool::BRepMesh_CircleTool( |
63 | const Standard_Integer theReservedSize, | |
64 | const BRepMeshCol::Allocator& theAllocator) | |
65 | : myTolerance (Precision::PConfusion() * Precision::PConfusion()), | |
66 | myAllocator (theAllocator), | |
67 | myCellFilter(10, theAllocator), | |
68 | mySelector (myTolerance, Max(theReservedSize, 64), theAllocator) | |
0d88155b | 69 | { |
0d88155b O |
70 | } |
71 | ||
0d88155b | 72 | //======================================================================= |
fc9b36d6 | 73 | //function : bind |
0d88155b O |
74 | //purpose : |
75 | //======================================================================= | |
fc9b36d6 | 76 | void BRepMesh_CircleTool::bind(const Standard_Integer theIndex, |
77 | const gp_XY& theLocation, | |
78 | const Standard_Real theRadius) | |
0d88155b | 79 | { |
fc9b36d6 | 80 | BRepMesh_Circle aCirle(theLocation, theRadius); |
0d88155b | 81 | |
fc9b36d6 | 82 | //compute coords |
83 | Standard_Real aMaxX = Min(theLocation.X() + theRadius, myFaceMax.X()); | |
84 | Standard_Real aMinX = Max(theLocation.X() - theRadius, myFaceMin.X()); | |
85 | Standard_Real aMaxY = Min(theLocation.Y() + theRadius, myFaceMax.Y()); | |
86 | Standard_Real aMinY = Max(theLocation.Y() - theRadius, myFaceMin.Y()); | |
0d88155b | 87 | |
fc9b36d6 | 88 | gp_XY aMinPnt(aMinX, aMinY); |
89 | gp_XY aMaxPnt(aMaxX, aMaxY); | |
0d88155b | 90 | |
fc9b36d6 | 91 | myCellFilter.Add(theIndex, aMinPnt, aMaxPnt); |
92 | mySelector.Bind(theIndex, aCirle); | |
0d88155b O |
93 | } |
94 | ||
95 | //======================================================================= | |
fc9b36d6 | 96 | //function : Bind |
0d88155b O |
97 | //purpose : |
98 | //======================================================================= | |
fc9b36d6 | 99 | void BRepMesh_CircleTool::Bind(const Standard_Integer theIndex, |
100 | const gp_Circ2d& theCircle) | |
0d88155b | 101 | { |
fc9b36d6 | 102 | gp_XY aCoord = theCircle.Location().Coord(); |
103 | Standard_Real aRadius = theCircle.Radius(); | |
104 | bind(theIndex, aCoord, aRadius); | |
0d88155b O |
105 | } |
106 | ||
107 | //======================================================================= | |
fc9b36d6 | 108 | //function : Bind |
0d88155b O |
109 | //purpose : |
110 | //======================================================================= | |
fc9b36d6 | 111 | Standard_Boolean BRepMesh_CircleTool::Bind(const Standard_Integer theIndex, |
112 | const gp_XY& thePoint1, | |
113 | const gp_XY& thePoint2, | |
114 | const gp_XY& thePoint3) | |
0d88155b | 115 | { |
fc9b36d6 | 116 | const Standard_Real aPrecision = Precision::PConfusion(); |
117 | const Standard_Real aSqPrecision = aPrecision * aPrecision; | |
0d88155b | 118 | |
fc9b36d6 | 119 | const gp_XY aPoints[3] = { thePoint1, thePoint2, thePoint3 }; |
0d88155b | 120 | |
fc9b36d6 | 121 | gp_XY aNorm[3]; |
122 | gp_XY aMidPnt[3]; | |
123 | for (Standard_Integer i = 0; i < 3; ++i) | |
124 | { | |
125 | const gp_XY& aPnt1 = aPoints[i]; | |
126 | const gp_XY& aPnt2 = aPoints[(i + 1) % 3]; | |
0d88155b | 127 | |
fc9b36d6 | 128 | aMidPnt[i] = (aPnt1 + aPnt2) / 2.; |
0d88155b | 129 | |
fc9b36d6 | 130 | gp_XY aLink(aPnt2 - aPnt1); |
131 | if (aLink.SquareModulus() < aSqPrecision) | |
132 | return Standard_False; | |
0d88155b | 133 | |
fc9b36d6 | 134 | aNorm[i] = gp_XY(aLink.Y(), -aLink.X()); |
135 | aNorm[i].Add(aMidPnt[i]); | |
136 | } | |
0d88155b | 137 | |
fc9b36d6 | 138 | gp_XY aIntPnt; |
139 | Standard_Real aParam[2]; | |
140 | BRepMesh_GeomTool::IntFlag aIntFlag = | |
141 | BRepMesh_GeomTool::IntLinLin(aMidPnt[0], aNorm[0], | |
142 | aMidPnt[1], aNorm[1], aIntPnt, aParam); | |
0d88155b | 143 | |
fc9b36d6 | 144 | if (aIntFlag != BRepMesh_GeomTool::Cross) |
145 | return Standard_False; | |
0d88155b | 146 | |
fc9b36d6 | 147 | Standard_Real aRadius = (aPoints[0] - aIntPnt).Modulus(); |
148 | bind(theIndex, aIntPnt, aRadius); | |
0d88155b O |
149 | return Standard_True; |
150 | } | |
151 | ||
152 | //======================================================================= | |
153 | //function : Delete | |
154 | //purpose : | |
155 | //======================================================================= | |
fc9b36d6 | 156 | void BRepMesh_CircleTool::Delete(const Standard_Integer theIndex) |
0d88155b | 157 | { |
fc9b36d6 | 158 | BRepMesh_Circle& aCircle = mySelector.Circle(theIndex); |
159 | if(aCircle.Radius() > 0.) | |
160 | aCircle.SetRadius(-1); | |
0d88155b O |
161 | } |
162 | ||
163 | //======================================================================= | |
164 | //function : Select | |
165 | //purpose : | |
166 | //======================================================================= | |
fc9b36d6 | 167 | BRepMeshCol::ListOfInteger& BRepMesh_CircleTool::Select(const gp_XY& thePoint) |
0d88155b | 168 | { |
fc9b36d6 | 169 | mySelector.SetPoint(thePoint); |
170 | myCellFilter.Inspect(thePoint, mySelector); | |
171 | return mySelector.GetShotCircles(); | |
0d88155b O |
172 | } |
173 | ||
fc9b36d6 | 174 | //======================================================================= |
175 | //function : MocBind | |
176 | //purpose : | |
177 | //======================================================================= | |
178 | void BRepMesh_CircleTool::MocBind(const Standard_Integer theIndex) | |
0d88155b | 179 | { |
fc9b36d6 | 180 | BRepMesh_Circle aNullCir(gp::Origin2d().Coord(), -1.); |
181 | mySelector.Bind(theIndex, aNullCir); | |
0d88155b | 182 | } |