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b311480e | 1 | // Created on: 1992-01-02 |
2 | // Created by: Remi GILET | |
3 | // Copyright (c) 1992-1999 Matra Datavision | |
4 | // Copyright (c) 1999-2012 OPEN CASCADE SAS | |
5 | // | |
6 | // The content of this file is subject to the Open CASCADE Technology Public | |
7 | // License Version 6.5 (the "License"). You may not use the content of this file | |
8 | // except in compliance with the License. Please obtain a copy of the License | |
9 | // at http://www.opencascade.org and read it completely before using this file. | |
10 | // | |
11 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
12 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
13 | // | |
14 | // The Original Code and all software distributed under the License is | |
15 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
16 | // Initial Developer hereby disclaims all such warranties, including without | |
17 | // limitation, any warranties of merchantability, fitness for a particular | |
18 | // purpose or non-infringement. Please see the License for the specific terms | |
19 | // and conditions governing the rights and limitations under the License. | |
20 | ||
7fd59977 | 21 | |
22 | #include <GccAna_Circ2d2TanOn.jxx> | |
23 | ||
24 | #include <ElCLib.hxx> | |
25 | #include <gp_Dir2d.hxx> | |
26 | #include <gp_Ax2d.hxx> | |
27 | #include <IntAna2d_AnaIntersection.hxx> | |
28 | #include <IntAna2d_IntPoint.hxx> | |
29 | ||
30 | //========================================================================= | |
0d969553 Y |
31 | // Creation of a circle passing by : 2 points Point1 and Point2. + |
32 | // Centered on : 1 straight line OnLine. + | |
33 | // with a Tolerance of precision : Tolerance. + | |
7fd59977 | 34 | // + |
0d969553 Y |
35 | // Create L1 straight line of points equidistant from Point1 and Point2. + |
36 | // Then create solutions cirsol such as : + | |
37 | // cirsol is all circle with center at the intersections of + | |
38 | // L1 with OnLine and the radius the distance between Point1 and the point + | |
39 | // calculated above. + | |
7fd59977 | 40 | //========================================================================= |
41 | ||
42 | GccAna_Circ2d2TanOn:: | |
43 | GccAna_Circ2d2TanOn (const gp_Pnt2d& Point1 , | |
44 | const gp_Pnt2d& Point2 , | |
45 | const gp_Lin2d& OnLine , | |
46 | const Standard_Real Tolerance ): | |
47 | cirsol(1,2) , | |
48 | qualifier1(1,2) , | |
49 | qualifier2(1,2), | |
50 | TheSame1(1,2) , | |
51 | TheSame2(1,2) , | |
52 | pnttg1sol(1,2) , | |
53 | pnttg2sol(1,2) , | |
54 | pntcen(1,2) , | |
55 | par1sol(1,2) , | |
56 | par2sol(1,2) , | |
57 | pararg1(1,2) , | |
58 | pararg2(1,2) , | |
59 | parcen3(1,2) | |
60 | { | |
61 | TheSame1.Init(0); | |
62 | TheSame2.Init(0); | |
63 | WellDone = Standard_False; | |
64 | NbrSol = 0; | |
65 | ||
66 | gp_Dir2d dirx(1.,0.); | |
67 | Standard_Real dist = Point1.Distance(Point2); | |
68 | if (dist < Abs(Tolerance)) { WellDone = Standard_True; } | |
69 | else { | |
70 | gp_Lin2d L1(gp_Pnt2d((Point1.XY()+Point2.XY())/2.0), | |
71 | gp_Dir2d(Point1.Y()-Point2.Y(),Point2.X()-Point1.X())); | |
72 | IntAna2d_AnaIntersection Intp(L1,OnLine); | |
73 | if (Intp.IsDone()) { | |
74 | if (!Intp.IsEmpty()) { | |
75 | for (Standard_Integer i = 1 ; i <= Intp.NbPoints() ; i++) { | |
76 | NbrSol++; | |
77 | gp_Ax2d axe(Intp.Point(i).Value(),dirx); | |
78 | cirsol(NbrSol)=gp_Circ2d(axe,Point1.Distance(Intp.Point(i).Value())); | |
79 | // ==================================================================== | |
80 | qualifier1(NbrSol) = GccEnt_noqualifier; | |
81 | qualifier2(NbrSol) = GccEnt_noqualifier; | |
82 | pnttg1sol(NbrSol) = Point1; | |
83 | pnttg2sol(NbrSol) = Point2; | |
84 | pntcen(NbrSol) = cirsol(NbrSol).Location(); | |
85 | pararg1(NbrSol) = 0.; | |
86 | pararg2(NbrSol) = 0.; | |
87 | par1sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),pnttg1sol(NbrSol)); | |
88 | par2sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),pnttg2sol(NbrSol)); | |
89 | parcen3(NbrSol)=ElCLib::Parameter(OnLine,pntcen(NbrSol)); | |
90 | } | |
91 | } | |
92 | WellDone = Standard_True; | |
93 | } | |
94 | } | |
95 | } | |
96 | ||
97 | ||
98 | ||
99 | ||
100 | ||
101 |