| 7fd59977 |
1 | |
| 2 | |
| 3 | #include <IntSurf.ixx> |
| 4 | |
| 5 | #include <Precision.hxx> |
| 6 | #include <gp.hxx> |
| 7 | #include <gp_Dir.hxx> |
| 8 | #include <gp_Vec.hxx> |
| 9 | #include <IntSurf_Transition.hxx> |
| 10 | |
| 11 | //-------------------------------------------------------------- |
| 12 | //-- IntSurf::MakeTransition(Vtgint,Vtgrst,Normale,Transline,Transarc); |
| 13 | //-- |
| 14 | |
| 15 | |
| 16 | //-- tgFirst = Tangente Ligne Intersection |
| 17 | //-- tgSecond = Tangenet Restriction |
| 18 | //-- Normale = Normale a la surface |
| 19 | void IntSurf::MakeTransition (const gp_Vec& TgFirst, |
| 20 | const gp_Vec& TgSecond, |
| 21 | const gp_Dir& Normale, |
| 22 | IntSurf_Transition& TFirst, |
| 23 | IntSurf_Transition& TSecond) |
| 24 | |
| 25 | { |
| 26 | |
| 27 | |
| 28 | // Effectuer le produit mixte normale, tangente 1, tangente 2 |
| 29 | // pour avoir le type de la transition. |
| 30 | |
| 31 | gp_Vec pvect(TgSecond.Crossed(TgFirst)); |
| 32 | |
| 33 | Standard_Real NTgSecond = TgSecond.Magnitude(); |
| 34 | Standard_Real NTgFirst = TgFirst.Magnitude(); |
| 35 | Standard_Real NTgSecondNTgFirstAngular = NTgSecond*NTgFirst*Precision::Angular(); |
| 36 | |
| 37 | if(NTgFirst <= Precision::Confusion()) { |
| 38 | TFirst.SetValue(Standard_True,IntSurf_Undecided); |
| 39 | TSecond.SetValue(Standard_True,IntSurf_Undecided); |
| 40 | } |
| 41 | else if ( (NTgSecond <= Precision::Confusion()) |
| 42 | || (pvect.Magnitude()<= NTgSecondNTgFirstAngular)) { |
| 43 | TFirst.SetValue(Standard_True,IntSurf_Unknown,TgFirst.Dot(TgSecond)<0.0); |
| 44 | TSecond.SetValue(Standard_True,IntSurf_Unknown,TgFirst.Dot(TgSecond)<0.0); |
| 45 | } |
| 46 | else { |
| 47 | Standard_Real yu = pvect.Dot(Normale); |
| 48 | yu/=NTgSecond*NTgFirst; |
| 49 | if (yu>0.0001) { |
| 50 | TFirst.SetValue(Standard_False,IntSurf_In); |
| 51 | TSecond.SetValue(Standard_False,IntSurf_Out); |
| 52 | } |
| 53 | else if(yu<-0.0001) { |
| 54 | TFirst.SetValue(Standard_False,IntSurf_Out); |
| 55 | TSecond.SetValue(Standard_False,IntSurf_In); |
| 56 | } |
| 57 | else { |
| 58 | #if 0 |
| 59 | //-- MODIF XAB |
| 60 | gp_Vec V1(TgSecond.X() / NTgSecond,TgSecond.Y() / NTgSecond, TgSecond.Z() / NTgSecond); |
| 61 | gp_Vec V2(TgFirst.X() / NTgFirst,TgFirst.Y() / NTgFirst, TgFirst.Z() / NTgFirst); |
| 62 | |
| 63 | pvect = V1.Crossed(V2); |
| 64 | yu = pvect.Dot(Normale); |
| 65 | |
| 66 | if (yu>0.0000001) { |
| 67 | TFirst.SetValue(Standard_False,IntSurf_In); |
| 68 | TSecond.SetValue(Standard_False,IntSurf_Out); |
| 69 | } |
| 70 | else if(yu<-0.0000001) { |
| 71 | TFirst.SetValue(Standard_False,IntSurf_Out); |
| 72 | TSecond.SetValue(Standard_False,IntSurf_In); |
| 73 | } |
| 74 | else { |
| 75 | TFirst.SetValue(Standard_True,IntSurf_Undecided); |
| 76 | TSecond.SetValue(Standard_True,IntSurf_Undecided); |
| 77 | } |
| 78 | |
| 79 | #else |
| 80 | TFirst.SetValue(Standard_True,IntSurf_Undecided); |
| 81 | TSecond.SetValue(Standard_True,IntSurf_Undecided); |
| 82 | |
| 83 | #endif |
| 84 | |
| 85 | |
| 86 | |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | |
| 92 | |
| 93 | |
| 94 | |
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