Some stranger problem using ofxCvContourFinder and ofCircle?

beginners
#1

Hi!
i have this stranger problem.
i’m using ofxCvContourFinder, trying to do a multitouch using ofxKinect.
My first problem it’s that during my first try all works… but after, i clean my code… and all go very slow. I don’t know why, but i have seen this problem: if in my draw method i write

  
  
ofSetColor(255, 255, 255);  
contourFinder.draw(420, 320, 400, 300);  
ofSetColor(255, 255, 255);  
ofCircle(10, 10, 100);

i see the contour of my blobs and i see the circle. If i remove “contourFinder.draw…” i don’t see the circle!! :open_mouth:
Someone know why?

#2

See if this helps isolate it

  
ofPushStyle();  
ofPushMatrix();  
ofSetColor(255, 255, 255);    
contourFinder.draw(420, 320, 400, 300);  
ofPopMatrix();  
ofPopStyle();  
//  
ofPushStyle();  
ofPushMatrix();  
ofSetColor(255, 255, 255);    
ofCircle(10, 10, 100);  
ofPopMatrix();  
ofPopStyle();
#3

Ehy thanks!
If i write:

  
  
ofPushStyle();  
ofPushMatrix();  
ofSetColor(255, 255, 255);  
ofCircle(100, 100, 100);  
ofPopMatrix();  
ofPopStyle();

whitout “contourFinder”, i can see my circle anyway, good!
But why? Can you explain me?