Nearly done with fractal dimension project

eoc/graph_scene.py

@@ -146,10 +146,12 @@ class GraphScene(Scene):
                     proportion = 0.7, 
                     direction = LEFT,
                     buff = MED_BUFF,
+                    color = None,
                     animate = True
                     ):
         label = TexMobject(label)
-        label.highlight(graph.get_color())
+        color = color or graph.get_color()
+        label.highlight(color)
         label.next_to(
             graph.point_from_proportion(proportion), 
             direction,

mobject/svg_mobject.py

@@ -62,7 +62,7 @@ class SVGMobject(VMobject):
             result.append(self.rect_to_mobject(element))
         elif element.tagName == 'circle':
             result.append(self.circle_to_mobject(element))
-        elif element.tagName == 'polygon':
+        elif element.tagName in ['polygon', 'polyline']:
             result.append(self.polygon_to_mobject(element))
         else:
             warnings.warn("Unknown element type: " + element.tagName)

topics/characters.py

@@ -9,7 +9,7 @@ from topics.objects import Bubble, ThoughtBubble, SpeechBubble
 
 from animation import Animation
 from animation.transform import Transform, ApplyMethod, \
-    FadeOut, FadeIn, ApplyPointwiseFunction
+    FadeOut, FadeIn, ApplyPointwiseFunction, MoveToTarget
 from animation.simple_animations import Write, ShowCreation, AnimationGroup
 from scene import Scene
 
@@ -228,6 +228,7 @@ class PiCreatureSays(AnimationGroup):
         "change_mode_kwargs" : {},
         "bubble_creation_kwargs" : {},
         "write_kwargs" : {},
+        "look_at_arg" : None,
     }
     def __init__(self, pi_creature, *content, **kwargs):
         digest_config(self, kwargs)
@@ -237,21 +238,16 @@ class PiCreatureSays(AnimationGroup):
         bubble.pin_to(pi_creature)
         pi_creature.bubble = bubble
 
+        pi_creature.generate_target()
+        pi_creature.target.change_mode(self.target_mode)
+        if self.look_at_arg:
+            pi_creature.target.look_at(self.look_at_arg)
+
         AnimationGroup.__init__(
             self,
-            ApplyMethod(
-                pi_creature.change_mode, 
-                self.target_mode,
-                **self.change_mode_kwargs
-            ),
-            ShowCreation(
-                bubble, 
-                **self.bubble_creation_kwargs
-            ),
-            Write(
-                bubble.content, 
-                **self.write_kwargs
-            ),
+            MoveToTarget(pi_creature, **self.change_mode_kwargs),
+            ShowCreation(bubble, **self.bubble_creation_kwargs),
+            Write(bubble.content, **self.write_kwargs),
             **kwargs
         )
     

topics/fractals.py

@@ -28,7 +28,7 @@ def fractalification_iteration(vmobject,
         # original_anchors = vmobject.get_anchors()
         original_anchors = [
             vmobject.point_from_proportion(x)
-            for x in np.linspace(0, 0.99, num_points)
+            for x in np.linspace(0, 1-1./num_points, num_points)
         ]
         new_anchors = []
         for p1, p2, in zip(original_anchors, original_anchors[1:]):
@@ -424,6 +424,19 @@ class KochCurve(KochSnowFlake):
     }
         
 
+class QuadraticKoch(LindenmayerCurve):
+    CONFIG = {
+        "colors" : [YELLOW, WHITE, MAROON_B],
+        "axiom"        : "A",
+        "rule"         : {
+            "A" : "A+A-A-AA+A+A-A"
+        },
+        "radius"       : 4,
+        "scale_factor" : 4,
+        "start_step"   : RIGHT,
+        "angle"        : np.pi/2
+    }
+
 
 class StellarCurve(LindenmayerCurve):
     CONFIG = {