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1 | // Created on: 1994-03-23 |
2 | // Created by: Bruno DUMORTIER |
3 | // Copyright (c) 1994-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | |
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18 | #include <Extrema_ExtCC2d.hxx> |
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19 | #include <Extrema_POnCurv2d.hxx> |
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20 | #include <Geom2d_Curve.hxx> |
21 | #include <Geom2dAdaptor_Curve.hxx> |
22 | #include <Geom2dAPI_ExtremaCurveCurve.hxx> |
23 | #include <gp_Pnt2d.hxx> |
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24 | #include <Precision.hxx> |
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25 | #include <Standard_OutOfRange.hxx> |
26 | #include <StdFail_NotDone.hxx> |
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27 | |
28 | //======================================================================= |
29 | //function : Geom2dAPI_ExtremaCurveCurve |
30 | //purpose : |
31 | //======================================================================= |
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32 | //Geom2dAPI_ExtremaCurveCurve::Geom2dAPI_ExtremaCurveCurve() |
33 | //{ |
34 | //} |
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35 | //======================================================================= |
36 | //function : Geom2dAPI_ExtremaCurveCurve |
37 | //purpose : |
38 | //======================================================================= |
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39 | Geom2dAPI_ExtremaCurveCurve::Geom2dAPI_ExtremaCurveCurve |
40 | (const Handle(Geom2d_Curve)& C1, |
41 | const Handle(Geom2d_Curve)& C2, |
42 | const Standard_Real U1min, |
43 | const Standard_Real U1max, |
44 | const Standard_Real U2min, |
45 | const Standard_Real U2max) |
46 | { |
47 | myC1.Load(C1, U1min, U1max); |
48 | myC2.Load(C2, U2min, U2max); |
49 | Extrema_ExtCC2d theExtCC( myC1, myC2 ); |
50 | |
51 | myExtCC = theExtCC; |
52 | |
53 | myIsDone = myExtCC.IsDone() && ( myExtCC.NbExt() > 0); |
54 | |
55 | |
56 | if ( myIsDone ) { |
57 | // evaluate the lower distance and its index; |
58 | |
59 | Standard_Real Dist2, Dist2Min = myExtCC.SquareDistance(1); |
60 | myIndex = 1; |
61 | |
62 | for ( Standard_Integer i = 2; i <= myExtCC.NbExt(); i++) { |
63 | Dist2 = myExtCC.SquareDistance(i); |
64 | if ( Dist2 < Dist2Min) { |
65 | Dist2Min = Dist2; |
66 | myIndex = i; |
67 | } |
68 | } |
69 | } |
70 | } |
71 | |
72 | |
73 | //======================================================================= |
74 | //function : NbExtrema |
75 | //purpose : |
76 | //======================================================================= |
77 | |
78 | Standard_Integer Geom2dAPI_ExtremaCurveCurve::NbExtrema() const |
79 | { |
80 | if ( myIsDone) |
81 | return myExtCC.NbExt(); |
82 | else |
83 | return 0; |
84 | } |
85 | |
86 | |
87 | //======================================================================= |
88 | //function : Points |
89 | //purpose : |
90 | //======================================================================= |
91 | |
92 | void Geom2dAPI_ExtremaCurveCurve::Points |
93 | (const Standard_Integer Index, |
94 | gp_Pnt2d& P1, |
95 | gp_Pnt2d& P2) const |
96 | { |
97 | Standard_OutOfRange_Raise_if |
98 | (Index<1||Index>NbExtrema(), "Geom2dAPI_ExtremaCurveCurve::Points"); |
99 | |
100 | Extrema_POnCurv2d PC1, PC2; |
101 | myExtCC.Points(Index,PC1,PC2); |
102 | |
103 | P1 = PC1.Value(); |
104 | P2 = PC2.Value(); |
105 | } |
106 | |
107 | |
108 | //======================================================================= |
109 | //function : Parameters |
110 | //purpose : |
111 | //======================================================================= |
112 | |
113 | void Geom2dAPI_ExtremaCurveCurve::Parameters |
114 | (const Standard_Integer Index, |
115 | Standard_Real& U1, |
116 | Standard_Real& U2) const |
117 | { |
118 | Standard_OutOfRange_Raise_if |
119 | (Index<1||Index>NbExtrema(), "Geom2dAPI_ExtremaCurveCurve::Parameters"); |
120 | |
121 | Extrema_POnCurv2d PC1, PC2; |
122 | myExtCC.Points(Index,PC1,PC2); |
123 | |
124 | U1 = PC1.Parameter(); |
125 | U2 = PC2.Parameter(); |
126 | } |
127 | |
128 | |
129 | //======================================================================= |
130 | //function : Distance |
131 | //purpose : |
132 | //======================================================================= |
133 | |
134 | Standard_Real Geom2dAPI_ExtremaCurveCurve::Distance |
135 | (const Standard_Integer Index) const |
136 | { |
137 | Standard_OutOfRange_Raise_if |
138 | (Index<1||Index>NbExtrema(), "Geom2dAPI_ExtremaCurveCurve:Distance"); |
139 | |
140 | return sqrt (myExtCC.SquareDistance(Index)); |
141 | } |
142 | |
143 | |
144 | //======================================================================= |
145 | //function : NearestPoints |
146 | //purpose : |
147 | //======================================================================= |
148 | |
149 | void Geom2dAPI_ExtremaCurveCurve::NearestPoints |
150 | (gp_Pnt2d& P1, gp_Pnt2d& P2) const |
151 | { |
152 | StdFail_NotDone_Raise_if |
153 | ( !myIsDone, "Geom2dAPI_ExtremaCurveCurve:NearestPoints"); |
154 | |
155 | Points(myIndex,P1,P2); |
156 | } |
157 | |
158 | |
159 | //======================================================================= |
160 | //function : LowerDistanceParameters |
161 | //purpose : |
162 | //======================================================================= |
163 | |
164 | void Geom2dAPI_ExtremaCurveCurve::LowerDistanceParameters |
165 | (Standard_Real& U1, |
166 | Standard_Real& U2) const |
167 | { |
168 | StdFail_NotDone_Raise_if |
169 | ( !myIsDone, "Geom2dAPI_ExtremaCurveCurve:LowerDistanceParameters"); |
170 | |
171 | Parameters(myIndex,U1,U2); |
172 | } |
173 | |
174 | |
175 | //======================================================================= |
176 | //function : LowerDistance |
177 | //purpose : |
178 | //======================================================================= |
179 | |
180 | Standard_Real Geom2dAPI_ExtremaCurveCurve::LowerDistance() const |
181 | { |
182 | StdFail_NotDone_Raise_if |
183 | (!myIsDone, "Geom2dAPI_ExtremaCurveCurve:LowerDistance"); |
184 | |
185 | return sqrt (myExtCC.SquareDistance(myIndex)); |
186 | } |
187 | |
188 | |
189 | //======================================================================= |
190 | //function : Standard_Real |
191 | //purpose : |
192 | //======================================================================= |
193 | |
194 | Geom2dAPI_ExtremaCurveCurve::operator Standard_Real() const |
195 | { |
196 | return LowerDistance(); |
197 | } |
198 | |
199 | |
200 | //======================================================================= |
201 | //function : Standard_Integer |
202 | //purpose : |
203 | //======================================================================= |
204 | |
205 | Geom2dAPI_ExtremaCurveCurve::operator Standard_Integer() const |
206 | { |
207 | return myExtCC.NbExt(); |
208 | } |