def ZoomOnBranch(self, branch, total_frames, reset_view=False, margin=20):
d = self.d
x0, y0, x1, y1 = std.d.viewBox
n = self.tree & branch
x0f, y0f, x1f, y1f = n.x_coor - margin, n.y_coor - margin, n.x_coor + margin, n.y_coor + margin
x0s = (x0f - x0) / float(total_frames)
y0s = (y0f - y0) / float(total_frames)
x1s = (x1f - x1) / float(total_frames)
y1s = (y1f - y1) / float(total_frames)
def draw_frame(i):
std.d.viewBox = (
x0 + i * x0s,
y0 + i * y0s,
x1 + i * x1s,
y1 + i * y1s,
)
return (d)
with draw.animate_jupyter(draw_frame, delay=0.05) as anim:
for i in range(total_frames):
anim.draw_frame(i)
if reset_view:
std.d.viewBox = x0, y0, x1, y1
def ZoomOnPoint(self, point, total_frames, reset_view=False):
d = self.d
x0, y0, x1, y1 = std.d.viewBox
x0f, y0f, x1f, y1f = point
x0s = (x0f - x0) / float(total_frames)
y0s = (y0f - y0) / float(total_frames)
x1s = (x1f - x1) / float(total_frames)
y1s = (y1f - y1) / float(total_frames)
def draw_frame(i):
std.d.viewBox = (
x0 + i * x0s,
y0 + i * y0s,
x1 + i * x1s,
y1 + i * y1s,
)
return (d)
with draw.animate_jupyter(draw_frame, delay=0.05) as anim:
for i in range(total_frames):
anim.draw_frame(i)
if reset_view:
std.d.viewBox = x0, y0, x1, y1
def AnimateForward(self, url):
total_frames = 200
d = self.d
p = draw.Rectangle(0,
0,
self.width,
self.height,
fill="black",
id="Square")
d.append(p)
def draw_frame(i):
std.d.elements[-1].args["y"] += (self.height / total_frames)
#d.setRenderSize(h=self.height)
#d.saveSvg(url)
return (d)
with draw.animate_jupyter(draw_frame, delay=0.05) as anim:
for i in range(total_frames):
anim.draw_frame(i)
def wrapper(func):
if save == 'mp4':
with draw.animate_video(
f'{name}.mp4',
draw_frame,
fps=fps,
jupyter=preview,
) as anim:
state = AnimState(anim, fps=fps)
func(state)
elif save == 'gif' or save is True:
with draw.animate_video(
f'{name}.gif',
draw_frame,
duration=1 / fps,
jupyter=preview,
) as anim:
state = AnimState(anim, fps=fps)
func(state)
else:
with draw.animate_jupyter(draw_frame, delay=1 / fps) as anim:
state = AnimState(anim, fps=fps)
func(state)
return func
import drawSvg as draw
# Draw a frame of the animation
def draw_frame(t):
d = draw.Drawing(2, 5.00, origin=(-1, -1.05))
d.setRenderSize(h=150)
d.append(draw.Rectangle(-4, -4, 8, 10, fill='white'))
d.append(draw.Rectangle(-1, -1.00, 8, 1.05, fill='brown'))
t = (t + 1) % 2 - 1
y = 4 - t**2 * 4
d.append(draw.Circle(0, y, 1, fill='lime'))
return d
with draw.animate_jupyter(draw_frame, delay=0.10) as anim:
# Or:
#with draw.animate_video('example6.gif', draw_frame, duration=0.05
# ) as anim:
# Add each frame to the animation
for i in range(40):
anim.draw_frame(i / 10)
for i in range(40):
anim.draw_frame(i / 10)
for i in range(40):
anim.draw_frame(i / 10)
