cosfunc1

cosfunc1/gif_maker

@@ -0,0 +1 @@
+convert -loop 0 *.png out.gif

cosfunc1/sketch_1/sketch_1.pde

@@ -0,0 +1,51 @@
+int numFrames = 75;
+int m = 8000;
+float delay =  10;
+
+void setup(){
+  size(500,500,P3D);
+
+  stroke(255);
+  fill(255);
+}
+
+float x1(float t, int offset){
+  return offset + 0.5*width + 500*cos(TWO_PI*t);
+}
+float y1(float t, int offset){
+  return offset + 0.5*width + -500*cos(2*TWO_PI*t);
+}
+
+float x2(float t, int offset){
+  return offset + 0.5*width + -500*cos(TWO_PI*t);
+}
+float y2(float t, int offset){
+  return offset + 0.5*height + 500*cos(2*TWO_PI*t);
+}
+
+void draw(){
+  float t = 1.0*(frameCount - 1)/numFrames;
+
+  background(0);
+  //int[] Xoffset = {-25, 0, 25}; 
+  //int[] Yoffset = {0, 5, 10};
+  //for (int i = 0; i < 3; i++) {
+    ellipse(x1(t,0 ),y1(t,0 ),6 , 6);
+    ellipse(x2(t,0 ),y2(t,0 ),6 , 6);
+    pushStyle();
+    strokeWeight(2);
+    stroke(255,100);
+    for(int i=0;i<=m;i++){
+      float tt = 1.0*i/m;
+      float x = lerp(x1(t - delay*tt,0),x2(t - delay*(1-tt),0),tt);
+      float y = lerp(y1(t - delay*tt, 0),y2(t - delay*(1-tt),0),tt);
+      point(x,y);
+  }
+  popStyle();
+  //}
+  //ellipse(x2(t),y2(t),6,6);
+
+  println("saving frame " + frameCount + "/" + numFrames);
+  if(frameCount<=numFrames) saveFrame("fr###.png");
+  if(frameCount == numFrames) stop();
+}