polyline_ROI.cpp

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//--------------------------------------------------
//---------------------------------------------------

#include "polyline_ROI.h"

namespace imedgine 
{
  PolylineROI::PolylineROI(SoSeparator* root)
  : ROIBase(root),
  point_index_(0) 
  {
    point_set_ = new SoCoordinate3;
    root_->addChild(point_set_);  
    
    polyline_set_ = new SoLineSet;  
    root_->addChild(polyline_set_);
    
    polyline_set_->numVertices = 0;    
  }
  
  //--------------------------------------------------- 
  
  PolylineROI::~PolylineROI()
  {
  }

  //--------------------------------------------------- 
  
  void PolylineROI::addPoint(SbVec3f point)
  {
    point_set_->point.set1Value(point_index_,
                                point[X_DIMENSION],
                                point[Y_DIMENSION], 0.1f);

    point_index_++;  
    ROIBase::addPoint(point);  
  }    
  
  //--------------------------------------------------- 
    
  void PolylineROI::drawROI()
  {
    int current_point_count = current_ROI_.size();
    int ROI_count = ROI_container_.size();

    
    polyline_set_->numVertices = -1;  
    
    //draw old ROIs that are stored in the ROI container
    for (int ROI_index = 0; ROI_index < ROI_count; ROI_index++)
    {
      polyline_set_->numVertices.set1Value(ROI_index, (ROI_container_.at(ROI_index)).size());
    }
    
    //not enough points set to draw line
    if (current_point_count < 2)
    {
      return;
    }

    std::cout << "Current point count: " << current_point_count << std::endl;  
    
    //draw the current ROI that is now drawn by the user
    polyline_set_->numVertices.set1Value(ROI_count, current_point_count);

    root_->touch();
  } 
   
  //---------------------------------------------------  
  
  void PolylineROI::autoCloseROI()
  {
    //add the starting point to the end of the list
    addPoint(current_ROI_[0]);
    finishROI();  
  }  
}

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