Changed directory structure to accomodate examples as apposed to everything being a part of the core library. May need to rethink this in the future. Added some boilerplate for pip packaging to the .gitignore.

examples/interpolation/interpolation.py

@@ -0,0 +1,57 @@
+
+"""Visualization of VAE Interpolation"""
+import sys
+import os
+sys.path.append(os.environ["PROJECT_ROOT"])
+from manim import *
+import pickle
+import numpy as np
+import manim_ml.neural_network as neural_network
+import examples.variational_autoencoder.variational_autoencoder as variational_autoencoder
+
+"""
+    The VAE Scene for the twitter video. 
+"""
+config.pixel_height = 720 
+config.pixel_width = 1280 
+config.frame_height = 6.0
+config.frame_width = 6.0
+# Set random seed so point distribution is constant
+np.random.seed(1)
+
+class InterpolationScene(MovingCameraScene):
+    """Scene object for a Variational Autoencoder and Autoencoder"""
+
+    def construct(self):
+        # Set Scene config
+        vae = variational_autoencoder.VariationalAutoencoder(dot_radius=0.035, layer_spacing=0.5)
+        vae.move_to(ORIGIN)
+        vae.encoder.shift(LEFT*0.5)
+        vae.decoder.shift(RIGHT*0.5)
+        mnist_image_handler = variational_autoencoder.MNISTImageHandler()
+        image_pair = mnist_image_handler.image_pairs[3]
+        # Make forward pass animation and DO NOT run it
+        forward_pass_animation = vae.make_forward_pass_animation(image_pair)
+        # Make the interpolation animation
+        interpolation_images = mnist_image_handler.interpolation_images
+        interpolation_animation = vae.make_interpolation_animation(interpolation_images)
+        embedding_zoom_animation = self.camera.auto_zoom([
+            vae.embedding, 
+            vae.decoder, 
+            vae.output_image
+        ], margin=0.5)
+        # Make animations
+        forward_pass_animations = []
+        for i in range(7):
+            anim = vae.decoder.make_forward_propagation_animation(run_time=0.5)
+            forward_pass_animations.append(anim)
+        forward_pass_animation_group = AnimationGroup(*forward_pass_animations, lag_ratio=1.0)
+        # Make forward pass animations
+        self.play(Create(vae), run_time=1.5)
+        self.play(FadeOut(vae.encoder), run_time=1.0)
+        self.play(embedding_zoom_animation, run_time=1.5)
+        interpolation_animation = AnimationGroup(
+            forward_pass_animation_group, 
+            interpolation_animation
+        )
+        self.play(interpolation_animation, run_time=9.0)