Data commit

Task/Archimedean-spiral/Processing/archimedean-spiral-1.processing

@@ -0,0 +1,20 @@
+float x, y;
+float theta;
+float rotation;
+
+void setup() {
+  size(300, 300);
+  theta = 0;
+  rotation = 0.1;
+  background(255);
+}
+
+void draw() {
+  translate(width/2.0, height/2.0);
+  x = theta*cos(theta/PI);
+  y = theta*sin(theta/PI);
+  point(x, y);
+  theta = theta + rotation;
+  // check restart
+  if (x>width/2.0) frameCount=-1;
+}

Task/Archimedean-spiral/Processing/archimedean-spiral-2.processing

@@ -0,0 +1,18 @@
+float theta;
+float rotation;
+
+void setup() {
+  size(300, 300);
+  theta = 0;
+  rotation = 0.1;
+  background(255);
+}
+
+void draw() {
+  translate(width/2.0, height/2.0);
+  theta += rotation;
+  rotate(theta/PI);
+  point(theta, 0);
+  // check restart
+  if (theta>width/2.0) frameCount=-1;
+}

Task/Archimedean-spiral/Processing/archimedean-spiral-3.processing

@@ -0,0 +1,19 @@
+PVector pv;
+float rotation;
+
+void setup() {
+  size(300, 300);
+  rotation = 0.1;
+  pv = new PVector(rotation, 0);
+  background(255);
+}
+
+void draw() {
+  translate(width/2.0, height/2.0);
+  pv.setMag(pv.mag()+rotation);
+  println(pv.mag());
+  pv.rotate(rotation/PI);
+  point(pv.x, pv.y);
+  // check restart
+  if (pv.mag()>width/2.0) frameCount=-1;
+}

Task/Archimedean-spiral/Processing/archimedean-spiral-4.processing

@@ -0,0 +1,22 @@
+float px, py, x, y;
+float theta;
+float rotation;
+
+void setup() {
+  size(300, 300);
+  px = py = x = y = theta = 0;
+  rotation = 0.1;
+  background(255);
+}
+
+void draw() {
+  translate(width/2.0, height/2.0);
+  x = theta*cos(theta/PI);
+  y = (theta)*sin(theta/PI);
+  line(x, y, px, py);
+  theta = theta + rotation;
+  px = x;
+  py = y;
+  // check restart
+  if (px>width/2.0) frameCount=-1;
+}

Task/Archimedean-spiral/Processing/archimedean-spiral-5.processing

@@ -0,0 +1,26 @@
+float x, y, px, py;
+float theta;
+float rotation;
+
+void setup() {
+  size(300, 300);
+  x = y = px = py = theta = 0;
+  rotation = 0.1;
+  background(255);
+}
+
+void draw() {
+  // find coordinates with rotating reference frame
+  pushMatrix();
+  rotate(theta/PI);
+  x = screenX(theta, 0);
+  y = screenY(theta, 0);
+  popMatrix();
+
+  translate(width/2.0, height/2.0);
+  theta += rotation;
+  line(px, py, x, y);
+  px = x;
+  py = y;
+  if (theta>width/2.0) frameCount=-1; // start over
+}