def highlight_region(self, region, color = None):
self.background = disp.paint_region(
region,
image_array = self.background,
color = color,
)
return self
def construct(self):
GraphScene.construct(self)
self.generate_regions()
self.generate_dual_graph()
region_mobs = [ImageMobject(disp.paint_region(reg, self.background), invert=False) for reg in self.regions]
for region, mob in zip(self.regions, region_mobs):
self.highlight_region(region, mob.get_color())
outer_region = self.regions.pop()
outer_region_mob = region_mobs.pop()
outer_dual_vertex = self.dual_vertices.pop()
internal_edges = filter(
lambda e: abs(e.start[0]) < SPACE_WIDTH
and abs(e.end[0]) < SPACE_WIDTH
and abs(e.start[1]) < SPACE_HEIGHT
and abs(e.end[1]) < SPACE_HEIGHT,
self.dual_edges,
)
external_edges = filter(lambda e: e not in internal_edges, self.dual_edges)
self.dither()
self.reset_background()
self.highlight_region(outer_region, outer_region_mob.get_color())
self.play(*[Transform(reg_mob, dot) for reg_mob, dot in zip(region_mobs, self.dual_vertices)])
self.dither()
self.reset_background()
self.play(ApplyFunction(lambda p: (SPACE_WIDTH + SPACE_HEIGHT) * p / np.linalg.norm(p), outer_region_mob))
self.dither()
for edges in internal_edges, external_edges:
self.play(*[ShowCreation(edge, run_time=2.0) for edge in edges])
self.dither()
def highlight_region(self, region, color=None):
self.background = disp.paint_region(
region,
image_array=self.background,
color=color,
)
return self
def highlight_region_over_time_range(self, region, time_range=None, color="black"):
if time_range:
frame_range = map(lambda t: t / self.frame_duration, time_range)
frame_range[0] = max(frame_range[0], 0)
frame_range[1] = min(frame_range[1], len(self.frames))
else:
frame_range = (0, len(self.frames))
for index in range(frame_range[0], frame_range[1]):
self.frames[index] = disp.paint_region(region, image_array=self.frames[index], color=color)
def highlight_region_over_time_range(self,
region,
time_range=None,
color="black"):
if time_range:
frame_range = map(lambda t: t / self.frame_duration, time_range)
frame_range[0] = max(frame_range[0], 0)
frame_range[1] = min(frame_range[1], len(self.frames))
else:
frame_range = (0, len(self.frames))
for index in range(frame_range[0], frame_range[1]):
self.frames[index] = disp.paint_region(
region, image_array=self.frames[index], color=color)
def construct(self):
GraphScene.construct(self)
self.generate_regions()
self.generate_dual_graph()
region_mobs = [
ImageMobject(disp.paint_region(reg, self.background), invert = False)
for reg in self.regions
]
for region, mob in zip(self.regions, region_mobs):
self.set_color_region(region, mob.get_color())
outer_region = self.regions.pop()
outer_region_mob = region_mobs.pop()
outer_dual_vertex = self.dual_vertices.pop()
internal_edges = filter(
lambda e : abs(e.start[0]) < FRAME_X_RADIUS and \
abs(e.end[0]) < FRAME_X_RADIUS and \
abs(e.start[1]) < FRAME_Y_RADIUS and \
abs(e.end[1]) < FRAME_Y_RADIUS,
self.dual_edges
)
external_edges = filter(
lambda e : e not in internal_edges,
self.dual_edges
)
self.wait()
self.reset_background()
self.set_color_region(outer_region, outer_region_mob.get_color())
self.play(*[
Transform(reg_mob, dot)
for reg_mob, dot in zip(region_mobs, self.dual_vertices)
])
self.wait()
self.reset_background()
self.play(ApplyFunction(
lambda p : (FRAME_X_RADIUS + FRAME_Y_RADIUS)*p/np.linalg.norm(p),
outer_region_mob
))
self.wait()
for edges in internal_edges, external_edges:
self.play(*[
ShowCreation(edge, run_time = 2.0)
for edge in edges
])
self.wait()
def construct(self):
GraphScene.construct(self)
self.generate_regions()
self.generate_dual_graph()
region_mobs = [
ImageMobject(disp.paint_region(reg, self.background), invert = False)
for reg in self.regions
]
for region, mob in zip(self.regions, region_mobs):
self.set_color_region(region, mob.get_color())
outer_region = self.regions.pop()
outer_region_mob = region_mobs.pop()
outer_dual_vertex = self.dual_vertices.pop()
internal_edges = [e for e in self.dual_edges if abs(e.start[0]) < FRAME_X_RADIUS and \
abs(e.end[0]) < FRAME_X_RADIUS and \
abs(e.start[1]) < FRAME_Y_RADIUS and \
abs(e.end[1]) < FRAME_Y_RADIUS]
external_edges = [e for e in self.dual_edges if e not in internal_edges]
self.wait()
self.reset_background()
self.set_color_region(outer_region, outer_region_mob.get_color())
self.play(*[
Transform(reg_mob, dot)
for reg_mob, dot in zip(region_mobs, self.dual_vertices)
])
self.wait()
self.reset_background()
self.play(ApplyFunction(
lambda p : (FRAME_X_RADIUS + FRAME_Y_RADIUS)*p/get_norm(p),
outer_region_mob
))
self.wait()
for edges in internal_edges, external_edges:
self.play(*[
ShowCreation(edge, run_time = 2.0)
for edge in edges
])
self.wait()
def show(self, color=None):
Image.fromarray(disp.paint_region(self, color=color)).show()
def show(self, color = None):
Image.fromarray(disp.paint_region(self, color = color)).show()
def __init__(self, region, color=None, **kwargs):
MobjectFromPixelArray.__init__(self,
disp.paint_region(region, color=color),
**kwargs)
def __init__(self, region, color = None, **kwargs):
MobjectFromPixelArray.__init__(
self,
disp.paint_region(region, color = color),
**kwargs
)