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Sped up get_pathstring of camera

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Grant Sanderson
2018-02-10 21:19:26 -08:00
parent 5af31c1b8b
commit d35ba7b196
1 changed files with 15 additions and 14 deletions
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29
camera/camera.py
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@ -179,6 +179,7 @@ class Camera(object):
def capture_mobject(self, mobject, **kwargs):
return self.capture_mobjects([mobject], **kwargs)
@profile
def capture_mobjects(self, mobjects, **kwargs):
self.reset_aggdraw_canvas()
mobjects = self.get_mobjects_to_display(mobjects, **kwargs)
@ -269,20 +270,18 @@ class Camera(object):
# points = self.adjust_out_of_range_points(points)
if len(points) == 0:
continue
points = self.align_points_to_camera(points)
coords = self.points_to_pixel_coords(points)
start = "M%d %d"%tuple(coords[0])
#(handle1, handle2, anchor) tripletes
triplets = zip(*[
coords[i+1::3]
for i in range(3)
])
cubics = [
"C" + " ".join(map(str, it.chain(*triplet)))
for triplet in triplets
]
end = "Z" if vmobject.mark_paths_closed else ""
result += " ".join([start] + cubics + [end])
aligned_points = self.align_points_to_camera(points)
coords = self.points_to_pixel_coords(aligned_points)
coord_strings = coords.flatten().astype("string")
#Start new path string with M
coord_strings[0] = "M" + coord_strings[0]
#The C at the start of every 6th number communicates
#that the following 6 define a cubic Bezier
coord_strings[2::6] = map(lambda s : "C" + str(s), coord_strings[2::6])
#Possibly finish with "Z"
if vmobject.mark_paths_closed:
coord_strings[-1] = coord_strings[-1] + " Z"
result += " ".join(coord_strings)
return result
def display_background_colored_vmobject(self, cvmobject):
@ -307,6 +306,8 @@ class Camera(object):
self.pixel_array, array
)
## Methods for other rendering
def display_point_cloud(self, points, rgbas, thickness):
if len(points) == 0:
return