src/IGESDraw/IGESDraw_DrawingWithRotation.cxx

   1 // Created by: CKY / Contract Toubro-Larsen
   2 // Copyright (c) 1993-1999 Matra Datavision
   3 // Copyright (c) 1999-2014 OPEN CASCADE SAS
   4 //
   5 // This file is part of Open CASCADE Technology software library.
   6 //
   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
   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.
  12 //
  13 // Alternatively, this file may be used under the terms of Open CASCADE
  14 // commercial license or contractual agreement.
  15
  16 //--------------------------------------------------------------------
  17 //--------------------------------------------------------------------
  18
  19 #include <gp_Pnt2d.hxx>
  20 #include <gp_XY.hxx>
  21 #include <gp_XYZ.hxx>
  22 #include <IGESData_IGESEntity.hxx>
  23 #include <IGESData_ViewKindEntity.hxx>
  24 #include <IGESDraw_DrawingWithRotation.hxx>
  25 #include <IGESDraw_PerspectiveView.hxx>
  26 #include <IGESDraw_View.hxx>
  27 #include <IGESGraph_DrawingSize.hxx>
  28 #include <IGESGraph_DrawingUnits.hxx>
  29 #include <Interface_Macros.hxx>
  30 #include <Standard_DimensionMismatch.hxx>
  31 #include <Standard_OutOfRange.hxx>
  32 #include <Standard_Type.hxx>
  33
  34 IMPLEMENT_STANDARD_RTTIEXT(IGESDraw_DrawingWithRotation,IGESData_IGESEntity)
  35
  36 IGESDraw_DrawingWithRotation::IGESDraw_DrawingWithRotation ()    {  }
  37
  38
  39     void IGESDraw_DrawingWithRotation::Init
  40   (const Handle(IGESDraw_HArray1OfViewKindEntity)& allViews,
  41    const Handle(TColgp_HArray1OfXY)&               allViewOrigins,
  42    const Handle(TColStd_HArray1OfReal)&            allOrientationAngles,
  43    const Handle(IGESData_HArray1OfIGESEntity)&     allAnnotations)
  44 {
  45   Standard_Integer Len  = allViews->Length();
  46   if ( allViews->Lower() != 1 ||
  47       (allViewOrigins->Lower() != 1 || allViewOrigins->Length() != Len) ||
  48       (allOrientationAngles->Lower() != 1 || allOrientationAngles->Length() != Len) )
  49     throw Standard_DimensionMismatch("IGESDraw_DrawingWithRotation : Init");
  50   if (!allAnnotations.IsNull())
  51     if (allAnnotations->Lower() != 1) throw Standard_DimensionMismatch("IGESDraw_DrawingWithRotation : Init");
  52
  53   theViews             = allViews;
  54   theViewOrigins       = allViewOrigins;
  55   theOrientationAngles = allOrientationAngles;
  56   theAnnotations       = allAnnotations;
  57   InitTypeAndForm(404,1);
  58 }
  59
  60     Standard_Integer IGESDraw_DrawingWithRotation::NbViews () const
  61 {
  62   return (theViews->Length());
  63 }
  64
  65     Handle(IGESData_ViewKindEntity) IGESDraw_DrawingWithRotation::ViewItem
  66   (const Standard_Integer Index) const
  67 {
  68   return (theViews->Value(Index));
  69 }
  70
  71     gp_Pnt2d IGESDraw_DrawingWithRotation::ViewOrigin
  72   (const Standard_Integer Index) const
  73 {
  74   return ( gp_Pnt2d (theViewOrigins->Value(Index)) );
  75 }
  76
  77     Standard_Real IGESDraw_DrawingWithRotation::OrientationAngle
  78   (const Standard_Integer Index) const
  79 {
  80   return ( theOrientationAngles->Value(Index) );
  81 }
  82
  83     Standard_Integer IGESDraw_DrawingWithRotation::NbAnnotations () const
  84 {
  85   return (theAnnotations.IsNull() ? 0 : theAnnotations->Length() );
  86 }
  87
  88     Handle(IGESData_IGESEntity) IGESDraw_DrawingWithRotation::Annotation
  89   (const Standard_Integer Index) const
  90 {
  91   return ( theAnnotations->Value(Index) );
  92 }
  93
  94     gp_XY IGESDraw_DrawingWithRotation::ViewToDrawing
  95   (const Standard_Integer NumView, const gp_XYZ& ViewCoords) const
  96 {
  97   gp_XY         thisOrigin       = theViewOrigins->Value(NumView);
  98   Standard_Real XOrigin          = thisOrigin.X();
  99   Standard_Real YOrigin          = thisOrigin.Y();
 100   Standard_Real theScaleFactor=0.;
 101
 102   Handle(IGESData_ViewKindEntity) tempView = theViews->Value(NumView);
 103   if (tempView->IsKind(STANDARD_TYPE(IGESDraw_View)))
 104     {
 105       DeclareAndCast(IGESDraw_View, thisView, tempView);
 106       theScaleFactor   = thisView->ScaleFactor();
 107     }
 108   else if (tempView->IsKind(STANDARD_TYPE(IGESDraw_PerspectiveView)))
 109     {
 110       DeclareAndCast(IGESDraw_PerspectiveView, thisView, tempView);
 111       theScaleFactor   = thisView->ScaleFactor();
 112     }
 113
 114   Standard_Real XV               = ViewCoords.X();
 115   Standard_Real YV               = ViewCoords.Y();
 116
 117   Standard_Real theta            = theOrientationAngles->Value(NumView);
 118
 119   Standard_Real XD =
 120     XOrigin + theScaleFactor * ( XV * Cos(theta) - YV * Sin(theta) );
 121   Standard_Real YD =
 122     YOrigin + theScaleFactor * ( XV * Sin(theta) + YV * Cos(theta) );
 123
 124   return ( gp_XY(XD, YD) );
 125 }
 126
 127
 128     Standard_Boolean  IGESDraw_DrawingWithRotation::DrawingUnit
 129   (Standard_Real& val) const
 130 {
 131   val = 0.;
 132   Handle(Standard_Type) typunit = STANDARD_TYPE(IGESGraph_DrawingUnits);
 133   if (NbTypedProperties(typunit) != 1) return Standard_False;
 134   DeclareAndCast(IGESGraph_DrawingUnits,units,TypedProperty(typunit));
 135   if (units.IsNull()) return Standard_False;
 136   val = units->UnitValue();
 137   return Standard_True;
 138 }
 139
 140     Standard_Boolean  IGESDraw_DrawingWithRotation::DrawingSize
 141   (Standard_Real& X, Standard_Real& Y) const
 142 {
 143   X = Y = 0.;
 144   Handle(Standard_Type) typsize = STANDARD_TYPE(IGESGraph_DrawingSize);
 145   if (NbTypedProperties(typsize) != 1) return Standard_False;
 146   DeclareAndCast(IGESGraph_DrawingSize,size,TypedProperty(typsize));
 147   if (size.IsNull()) return Standard_False;
 148   X = size->XSize();  Y = size->YSize();
 149   return Standard_True;
 150 }