Source/System/NodeCores/Groups/Misc/OSGRangeLOD.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
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   5  *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
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  12 /*---------------------------------------------------------------------------*\
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  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
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  37 \*---------------------------------------------------------------------------*/
  38
  39 #include <cstdlib>
  40 #include <cstdio>
  41
  42 #include "OSGConfig.h"
  43
  44 #include "OSGAction.h"
  45 #include "OSGCamera.h"
  46 #include "OSGRenderAction.h"
  47
  48 //just for debug
  49 #include <iostream>
  50 //just for debug
  51
  52 #include "OSGRangeLOD.h"
  53
  54 OSG_USING_NAMESPACE
  55
  56 // Documentation for this class is emited in the
  57 // OSGRangeLODBase.cpp file.
  58 // To modify it, please change the .fcd file (OSGRangeLOD.fcd) and
  59 // regenerate the base file.
  60
  61 /*-------------------------------------------------------------------------*/
  62 /*                               Sync                                      */
  63
  64 void RangeLOD::changed(ConstFieldMaskArg whichField,
  65                        UInt32            origin,
  66                        BitVector         details)
  67 {
  68     Inherited::changed(whichField, origin, details);
  69 }
  70
  71 /*-------------------------------------------------------------------------*/
  72 /*                               Dump                                      */
  73
  74 void RangeLOD::dump(      UInt32    OSG_CHECK_ARG(uiIndent),
  75                     const BitVector OSG_CHECK_ARG(bvFlags )) const
  76 {
  77     SLOG << "Dump RangeLOD NI" << std::endl;
  78 }
  79
  80 /*-------------------------------------------------------------------------*/
  81 /*                            Constructors                                 */
  82
  83 RangeLOD::RangeLOD(void) :
  84     Inherited()
  85 {
  86 }
  87
  88 RangeLOD::RangeLOD(const RangeLOD &source) :
  89     Inherited(source)
  90 {
  91 }
  92
  93 /*-------------------------------------------------------------------------*/
  94 /*                             Destructor                                  */
  95
  96 RangeLOD::~RangeLOD(void)
  97 {
  98 }
  99
 100 /*-------------------------------------------------------------------------*/
 101 /*                               Init                                      */
 102
 103 void RangeLOD::initMethod(InitPhase ePhase)
 104 {
 105     Inherited::initMethod(ePhase);
 106
 107     if(ePhase == TypeObject::SystemPost)
 108     {
 109
 110         RenderAction::registerEnterDefault(
 111             RangeLOD::getClassType(),
 112             reinterpret_cast<Action::Callback>(&RangeLOD::renderEnter));
 113     }
 114 }
 115
 116 Action::ResultE RangeLOD::renderEnter(Action *action)
 117 {
 118     RenderAction  *ra = dynamic_cast<RenderAction *>(action);
 119
 120     Pnt3f eyepos;
 121
 122     ra->getActivePartition()->getCameraToWorld().mult(eyepos, eyepos);
 123
 124     Pnt3f objpos;
 125
 126     ra->topMatrix().mult(getCenter(), objpos);
 127
 128     Real32 dist = eyepos.dist(objpos);
 129
 130     if(dist > getSwitchOut() && dist < getSwitchIn())
 131     {
 132         return Action::Continue;
 133     }
 134     else
 135     {
 136         return Action::Skip;
 137     }
 138 }