22a

2020/sketch_2020_11_22a/sketch_2020_11_22a.pyde

@@ -0,0 +1,37 @@
+from villares.line_geometry import hatch_poly, draw_poly, poly_edges, Line
+def setup():
+    size(400, 400)
+    strokeWeight(2)
+
+def draw():
+    background(100, 100, 130)
+    stroke(0)
+    fill(255)
+    r = [(75, 150), (325, 150), (325, 300), (75, 300)]
+    r[0] = (mouseX, mouseY)
+    # dash_line (100, 100, mouseX, mouseY)
+    draw_poly(r)
+    angs = [int(degrees(atan2(e[0][1] - e[1][1], e[0][0] - e[1][0]) + PI + HALF_PI))
+            for e in poly_edges(r)[::2]]
+    angs = {ang if ang < 180 else
+            ang - 180 if ang < 360 else
+            ang - 360
+            for ang in angs}
+    # text(str(angs), 30, 30)
+    for ang in angs:
+        hatch_poly(r, radians(ang), spacing=5, function=dash_line)
+        
+    # I have modifierd Line .plot method to accept a custom drawing function
+    # and also also the hatch_poly, both at github.com/villares/villares    
+        
+def dash_line(xa, ya, xb, yb, divisions=12.5):
+    for i in range(0, int(divisions * 2), 2):
+        ts = i / float(divisions * 2)
+        te = (i + 1) / float(divisions * 2)
+        xs, ys, _ = Line(xa, ya, xb, yb).line_point(ts)
+        xe, ye, _ = Line(xa, ya, xb, yb).line_point(te)
+        line(xs, ys, xe, ye)
+        # circle(xe, ye, 5)
+        # circle(xs, ys, 5)
+
+            

README.md

@@ -26,6 +26,12 @@ Here are listed some of the tools I have been using:
 
 ---
 
+![sketch_2020_11_22a](2020/sketch_2020_11_22a/sketch_2020_11_22a.gif)
+
+[sketch_2020_11_22a](https://github.com/villares/sketch-a-day/tree/master/2020/sketch_2020_11_22a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+---
+
 ![sketch_2020_11_21a](2020/sketch_2020_11_21a/sketch_2020_11_21a.gif)
 
 [sketch_2020_11_21a](https://github.com/villares/sketch-a-day/tree/master/2020/sketch_2020_11_21a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]