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    kawolski
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  • High resolution frames from an animation
    Hi. 
    This is my first attempt at Processing, sorry for the silly questions.
    I need to save frames at 300 dpi minimum for professional printing. 
    I tried to use a frame 4 times the size of my monitor, but I really need to see what's happening when I record so it does not work for me.
    Instead I tried to use the PDF library but I only save 'blank' frame, I don't understand why.
    Is there a better way of saving at high resolution, if not, can you tell me what's wrong with my code?
    Thank you for your help!

    import processing.pdf.*;

    boolean record;

     
    int num = 60;
    int colorL=255,k = 0,j=100,i=200;
     
    float x,y,z;
    float r,th=0,step=.1,epi=200;
    float m = 1,n1=-1,n2=0,n3=0;
    float b=1,a=1;
    int counter1=0, counter2=0;
     
     
    void setup() 
    {
      size(1800,1100);
      background(0);
      frameRate(50);
      smooth();
    }
     
    void draw() {
     if (record) {
        // #### will be replaced with the frame number. 
        beginRecord(PDF, "frame-####.pdf");
        }
    {
       
      fill(0,5);
      rect(-5, -5, 1805, 1105);
      counter1++;
      if (counter1 == 75) {
        m=int(random(3,60));
        n1=random(2);
        n2=random(2);
        n3=random(.1);
        epi=random(50,200);
        step=random(.01,10);
        counter1 = 0;
      }
      translate(mouseX, mouseY-100);
      stroke(colorL,35);
      noFill();
      beginShape();
      for(int i=1; i < num; i++) {
        r = epi*pow(((pow(abs(cos(m*th/5)/a),n2))+(pow(abs(sin(m*th/5)/b),n3))),(-1/n1)) * random(10000)/random(1000); 
        th = th + step;
        x = r*cos(th);
        y = r*sin(th);
        curveVertex(x,y);
      }
      endShape();
      
      if (record) {
      endRecord();
      record = false;
      }
     
    }
    }
     // Use a keypress so thousands of files aren't created
    void mousePressed() {
      record = true;
    }