/*
  * ofxCvBlob.h
  * openFrameworks
  *
  * A blob is a homogenous patch represented by a polygonal contour.
  * Typically a blob tracker uses the contour to figure out the blob's
  * persistence and "upgrades" it with ids and other temporal
  * information.
  *
  */
  
  ifndef OFX_CV_BLOB_H
  define OFX_CV_BLOB_H
  
  include <ofxCvConstants.h>
  
  class ofxCvBlob {
  
      public:
  
          float               area;
          float               length;
          ofRectangle         boundingRect;
          ofPoint             centroid;
          bool                hole;
  
          vector <ofPoint>    pts;    // the contour of the blob
          int                 nPts;   // number of pts;
  
          //----------------------------------------
          ofxCvBlob() {
              area                 = 0.0f;
              length                 = 0.0f;
              hole                 = false;
              nPts        = 0;
          }
  
          //----------------------------------------
          void draw(float x = 0, float y = 0){
              ofNoFill();
              ofSetColor(0x00FFFF);
              ofBeginShape();
              for (int i = 0; i < nPts; i++){
                     ofVertex(x + pts[i].x, y + pts[i].y);
              }
              ofEndShape(true);
              ofSetColor(0xff0099);
              ofRect(x + boundingRect.x, y + boundingRect.y, boundingRect.width, boundingRect.height);
          }
  };
  
  endif