190201

2019/sketch_190201a/sketch_190201a.pyde

@@ -10,37 +10,32 @@ def draw():
     ri = r1 - r2
     p1 = PVector(200, 250)
     p2 = PVector(mouseX, mouseY)
-    # ellipse(p2.x, p2.y, r2 * 2, r2 * 2)
-    # ellipse(p1.x, p1.y, r1 * 2, r1 * 2)
+    # ellipse(d, 0, r2 * 2, r2 * 2)
+    # ellipse(0, 0, r1 * 2, r1 * 2)
     strokeWeight(3)
+    noFill()
     new_bar(p1, p2, r1, r2)
 
 
 def new_bar(p1p, p2p, r1, r2):
     d = dist(p1p.x, p1p.y, p2p.x, p2p.y)
-    p2 = PVector(d, 0)
-    p1 = PVector(0, 0)
-    ri = r1 - r2
-    with pushMatrix():
-        translate(p1p.x, p1p.y)
-        angle = atan2(p1p.x - p2p.x, p2p.y - p1p.y)
-        rotate(angle + HALF_PI)
-        theta = asin(ri / d)
-        beta = 3 * HALF_PI - theta
-        x = cos(beta) * ri
-        y = sin(beta) * ri
-        x1 = cos(beta) * r1
-        y1 = sin(beta) * r1
-        x2 = cos(beta) * r2
-        y2 = sin(beta) * r2
-        line(p1.x - x1, p1.y - y1, p2.x - x2, p2.y - y2)
-        line(p1.x - x1, p1.y + y1, p2.x - x2, p2.y + y2)
-        stroke(255, 0, 0)
-        arc(p1.x, p1.y, r1 * 2, r1 * 2,
-            -1.5 * PI - theta, -HALF_PI + theta)
-        arc(p2.x, p2.y, r2 * 2, r2 * 2,
-            -HALF_PI + theta, HALF_PI - theta)
-
-
+    if d > 0:
+        with pushMatrix():
+            translate(p1p.x, p1p.y)
+            angle = atan2(p1p.x - p2p.x, p2p.y - p1p.y)
+            rotate(angle + HALF_PI)
+            ri = r1 - r2
+            beta = asin(ri / d) + HALF_PI
+            x1 = cos(beta) * r1
+            y1 = sin(beta) * r1
+            x2 = cos(beta) * r2
+            y2 = sin(beta) * r2
+            line(-x1, -y1, d - x2, -y2)
+            line(-x1, +y1, d - x2, +y2)
+            arc(0, 0, r1 * 2, r1 * 2,
+                -beta - PI, beta - PI) 
+            arc(d, 0, r2 * 2, r2 * 2,
+                beta - PI, PI - beta)
+    
 def keyPressed():
     saveFrame("sketch-190201a.png")

README.md

@@ -19,6 +19,26 @@ Subscribe to sort-of-weekly newsletter:  [[sketch-mail](https://tinyletter.com/v
 
 ## 2019
 
+
+
+---
+
+![sketch_190201a](2019/sketch_190201a/sketch_190201a.gif)
+
+[sketch_190201a](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190201a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+---
+
+![sketch_190131a](2019/sketch_190131a/sketch_190131a.gif)
+
+[sketch_190131a](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190131a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+---
+
+![sketch_190130a](2019/sketch_190130a/sketch_190130a.gif)
+
+[sketch_190130a](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190130a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
 ---
 
 ![sketch_190129a](2019/sketch_190129a/sketch_190129a.gif)