SplatCloudObjectSelectionPlugin2.cc

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//================================================================
//
//  CLASS SplatCloudObjectSelectionPlugin - IMPLEMENTATION (continued)
//
//================================================================
 
 
//== INCLUDES ====================================================
 
 
#include "SplatCloudObjectSelectionPlugin.hh"
 
#include "SplatCloudSelection.hh"
 
 
//== IMPLEMENTATION ==============================================
 
 
bool SplatCloudObjectSelectionPlugin::splatCloudDeleteSelection( SplatCloud *_splatCloud, PrimitiveType _primitiveType )
{
  if( (_primitiveType & vertexType_) == 0 )
    return false; // done
 
  if( _splatCloud == 0 )
    return false; // error
 
  unsigned int numDeleted = _splatCloud->eraseSplatsByIndex( SplatCloudSelection::getVertexSelection( _splatCloud ) );
 
  return (numDeleted != 0);
}
 
 
//----------------------------------------------------------------
 
 
void SplatCloudObjectSelectionPlugin::splatCloudToggleSelection( SplatCloud *_splatCloud, uint _index, ACG::Vec3d &_hit_point, PrimitiveType _primitiveType )
{
  if( (_primitiveType & vertexType_) == 0 )
    return; // done
 
  if( _splatCloud == 0 )
    return; // error
 
  if( /*(_index < 0) ||*/ (_index >= _splatCloud->numSplats()) )
    return; // error
 
  if( !_splatCloud->hasSelections() )
  {
    if( !_splatCloud->requestSelections() )
      return; // error
 
    unsigned int i, num = _splatCloud->numSplats();
    for( i=0; i<num; ++i )
      _splatCloud->selections( i ) = false;
  }
 
  _splatCloud->selections( _index ) = !_splatCloud->selections( _index );
 
  if( _splatCloud->selections( _index ) )
    emit scriptInfo( "selectVertices(ObjectId , [" + QString::number( _index ) + "])" );
  else
    emit scriptInfo( "unselectVertices(ObjectId , [" + QString::number( _index ) + "])" );
}
 
 
//----------------------------------------------------------------
 
 
void SplatCloudObjectSelectionPlugin::splatCloudSphereSelection( SplatCloud *_splatCloud, uint _index, const ACG::Vec3d &_hit_point, double _radius, PrimitiveType _primitiveType, bool _deselection )
{
  if( (_primitiveType & vertexType_) == 0 )
    return; // done
 
  if( _splatCloud == 0 )
    return; // error
 
  if( /*(_index < 0) ||*/ (_index >= _splatCloud->numSplats()) )
    return; // error
 
  if( !_splatCloud->hasPositions() )
    return; // error
 
  if( !_splatCloud->hasSelections() )
  {
    if( _deselection )
      return; // done
 
    if( !_splatCloud->requestSelections() )
      return; // error
 
    unsigned int i, num = _splatCloud->numSplats();
    for( i=0; i<num; ++i )
      _splatCloud->selections( i ) = false;
  }
 
  if( _radius < 0.0 )
    return; // done
 
  double sqrRadius = _radius * _radius;
 
  SplatCloud::Selection selection = !_deselection;
 
  unsigned int i, num = _splatCloud->numSplats();
  for( i=0; i<num; ++i )
  {
    const SplatCloud::Position &pos = _splatCloud->positions( i );
 
    double dx = pos[0] - _hit_point[0];
    double dy = pos[1] - _hit_point[1];
    double dz = pos[2] - _hit_point[2];
 
    double sqrDist = dx*dx + dy*dy + dz*dz;
 
    if( sqrDist <= sqrRadius )
      _splatCloud->selections( i ) = selection;
  }
}
 
 
//----------------------------------------------------------------
 
 
bool SplatCloudObjectSelectionPlugin::splatCloudVolumeSelection( SplatCloud *_splatCloud, ACG::GLState &_state, QRegion *_region, PrimitiveType _primitiveType, bool _deselection )
{
  if( (_primitiveType & vertexType_) == 0 )
    return false; // done
 
  if( _splatCloud == 0 )
    return false; // error
 
  if( !_splatCloud->hasPositions() )
    return false; // error
 
  bool modify = true;
 
  if( !_splatCloud->hasSelections() )
  {
    if( _deselection )
    {
      modify = false;
    }
    else
    {
      if( !_splatCloud->requestSelections() )
        return false; // error
 
      unsigned int i, num = _splatCloud->numSplats();
      for( i=0; i<num; ++i )
        _splatCloud->selections( i ) = false;
    }
  }
 
  bool rv = false;
 
  SplatCloud::Selection selection = !_deselection;
 
  int i, num = static_cast<int>(_splatCloud->numSplats());
#ifdef USE_OPENMP
    #pragma omp parallel for
#endif
  for( i=0; i<num; ++i )
  {
    const SplatCloud::Position &pos = _splatCloud->positions( i );
 
    ACG::Vec3d proj = _state.project( ACG::Vec3d( pos[0], pos[1], pos[2] ) );
 
    if( _region->contains( QPoint( (int) proj[0], _state.context_height() - (int) proj[1] ) ) )
    {
      if( modify )
        _splatCloud->selections( i ) = selection;
 
      rv = true;
    }
  }
 
  return rv;
}
 
 
//----------------------------------------------------------------
 
 
void SplatCloudObjectSelectionPlugin::splatCloudColorizeSelection( SplatCloud *_splatCloud, PrimitiveType _primitiveTypes, int _r, int _g, int _b, int _a )
{
  if( (_primitiveTypes & vertexType_) == 0 )
    return; // done
 
  if( _splatCloud == 0 )
    return; // error
 
  if( !_splatCloud->hasColors() )
  {
    if( !_splatCloud->requestColors() )
      return; // error
 
    SplatCloud::Color black( 0, 0, 0 );
 
    unsigned int i, num = _splatCloud->numSplats();
    for( i=0; i<num; ++i )
      _splatCloud->colors( i ) = black;
  }
 
  if( !_splatCloud->hasSelections() )
    return; // done
 
  unsigned char r = (_r < 0) ? 0 : (_r > 255) ? 255 : (unsigned char) _r;
  unsigned char g = (_g < 0) ? 0 : (_g > 255) ? 255 : (unsigned char) _g;
  unsigned char b = (_b < 0) ? 0 : (_b > 255) ? 255 : (unsigned char) _b;
 
  SplatCloud::Color color( r, g, b ); // drop alpha
 
  unsigned int i, num = _splatCloud->numSplats();
  for( i=0; i<num; ++i )
  {
    if( _splatCloud->selections( i ) )
      _splatCloud->colors( i ) = color;
  }
}