Comments on: Exercise 14-6: Spinning baton http://www.learningprocessing.com A Beginner's Guide to Programming Images, Animation, and Interaction by Daniel Shiffman Fri, 10 Feb 2012 19:58:00 +0000 hourly 1 By: Anonymous http://www.learningprocessing.com/exercises/chapter-14/exercise-14-6/comment-page-1/#comment-20723 Anonymous Sun, 05 Feb 2012 16:42:00 +0000 http://www.learningprocessing.com/?page_id=1443#comment-20723 Ok so I have done it a long way round.. just looked at the answer.. well I had some fun anyway. Ok so I have done it a long way round.. just looked at the answer.. well I had some fun anyway.

]]> By: Anonymous http://www.learningprocessing.com/exercises/chapter-14/exercise-14-6/comment-page-1/#comment-20722 Anonymous Sun, 05 Feb 2012 16:40:00 +0000 http://www.learningprocessing.com/?page_id=1443#comment-20722 //Hey I have just been geting my head round all the translate and managed this without //looking at the answer.. Not sure if this will be the same but I managed it with the pop //and push Matrix.  //draw a baton!!! void setup(){   size(300,300);   strokeWeight(12);//give the handle good width   smooth();   } void draw(){   background(0);   fill(255);   stroke(255);   pushMatrix();//set the translate to only move for the line   translate(width/2,height/2);//sets x y to center   //angle ranges from 0 to PI based on mouseX location to width   float theta = PI*mouseX/width;   //rotate by the angle theta   rotate(theta);      //display a line at the center of the sketch      line(-width/4,0, width/4, 0);     popMatrix();   pushMatrix();   translate(width/2,height/2);      //float theta2 = PI*mouseX/width;//dont need this again   rotate(theta);      ellipseMode(CENTER);   ellipse(-width/4, 0, 30,30);   popMatrix();         pushMatrix();   translate(width/2,height/2);      //float theta3 = PI*mouseX/width;//dont need this again   rotate(theta);      ellipseMode(CENTER);   ellipse(width/4, 0, 30,30);   popMatrix(); } //Hey I have just been geting my head round all the translate and managed this without //looking at the answer.. Not sure if this will be the same but I managed it with the pop //and push Matrix. 

//draw a baton!!!

void setup(){
  size(300,300);
  strokeWeight(12);//give the handle good width
  smooth();
  }

void draw(){
  background(0);
  fill(255);
  stroke(255);
  pushMatrix();//set the translate to only move for the line
  translate(width/2,height/2);//sets x y to center
  //angle ranges from 0 to PI based on mouseX location to width
  float theta = PI*mouseX/width;
  //rotate by the angle theta
  rotate(theta);
  
  //display a line at the center of the sketch
  
  line(-width/4,0, width/4, 0);
 
  popMatrix();
  pushMatrix();
  translate(width/2,height/2);
  
  //float theta2 = PI*mouseX/width;//dont need this again
  rotate(theta);
  
  ellipseMode(CENTER);
  ellipse(-width/4, 0, 30,30);
  popMatrix();
  
  
  pushMatrix();
  translate(width/2,height/2);
  
  //float theta3 = PI*mouseX/width;//dont need this again
  rotate(theta);
  
  ellipseMode(CENTER);
  ellipse(width/4, 0, 30,30);
  popMatrix();
}

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