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from ..core import logger
from .plt_plotter import Matplotlib3DPlotter
from .skeleton_plotter_tasks import Draw3DSkeletonMotion, Draw3DSkeletonState
def plot_skeleton_state(skeleton_state, task_name=""):
"""
Visualize a skeleton state
:param skeleton_state:
:param task_name:
:type skeleton_state: SkeletonState
:type task_name: string, optional
"""
logger.info("plotting {}".format(task_name))
task = Draw3DSkeletonState(task_name=task_name, skeleton_state=skeleton_state)
plotter = Matplotlib3DPlotter(task)
plotter.show()
def plot_skeleton_states(skeleton_state, skip_n=1, task_name=""):
"""
Visualize a sequence of skeleton state. The dimension of the skeleton state must be 1
:param skeleton_state:
:param task_name:
:type skeleton_state: SkeletonState
:type task_name: string, optional
"""
logger.info("plotting {} motion".format(task_name))
assert len(skeleton_state.shape) == 1, "the state must have only one dimension"
task = Draw3DSkeletonState(task_name=task_name, skeleton_state=skeleton_state[0])
plotter = Matplotlib3DPlotter(task)
for frame_id in range(skeleton_state.shape[0]):
if frame_id % skip_n != 0:
continue
task.update(skeleton_state[frame_id])
plotter.update()
plotter.show()
def plot_skeleton_motion(skeleton_motion, skip_n=1, task_name=""):
"""
Visualize a skeleton motion along its first dimension.
:param skeleton_motion:
:param task_name:
:type skeleton_motion: SkeletonMotion
:type task_name: string, optional
"""
logger.info("plotting {} motion".format(task_name))
task = Draw3DSkeletonMotion(
task_name=task_name, skeleton_motion=skeleton_motion, frame_index=0
)
plotter = Matplotlib3DPlotter(task)
for frame_id in range(len(skeleton_motion)):
if frame_id % skip_n != 0:
continue
task.update(frame_id)
plotter.update()
plotter.show()
def plot_skeleton_motion_interactive_base(skeleton_motion, task_name=""):
class PlotParams:
def __init__(self, total_num_frames):
self.current_frame = 0
self.playing = False
self.looping = False
self.confirmed = False
self.playback_speed = 4
self.total_num_frames = total_num_frames
def sync(self, other):
self.current_frame = other.current_frame
self.playing = other.playing
self.looping = other.current_frame
self.confirmed = other.confirmed
self.playback_speed = other.playback_speed
self.total_num_frames = other.total_num_frames
task = Draw3DSkeletonMotion(
task_name=task_name, skeleton_motion=skeleton_motion, frame_index=0
)
plotter = Matplotlib3DPlotter(task)
plot_params = PlotParams(total_num_frames=len(skeleton_motion))
print("Entered interactive plot - press 'n' to quit, 'h' for a list of commands")
def press(event):
if event.key == "x":
plot_params.playing = not plot_params.playing
elif event.key == "z":
plot_params.current_frame = plot_params.current_frame - 1
elif event.key == "c":
plot_params.current_frame = plot_params.current_frame + 1
elif event.key == "a":
plot_params.current_frame = plot_params.current_frame - 20
elif event.key == "d":
plot_params.current_frame = plot_params.current_frame + 20
elif event.key == "w":
plot_params.looping = not plot_params.looping
print("Looping: {}".format(plot_params.looping))
elif event.key == "v":
plot_params.playback_speed *= 2
print("playback speed: {}".format(plot_params.playback_speed))
elif event.key == "b":
if plot_params.playback_speed != 1:
plot_params.playback_speed //= 2
print("playback speed: {}".format(plot_params.playback_speed))
elif event.key == "n":
plot_params.confirmed = True
elif event.key == "h":
rows, columns = os.popen("stty size", "r").read().split()
columns = int(columns)
print("=" * columns)
print("x: play/pause")
print("z: previous frame")
print("c: next frame")
print("a: jump 10 frames back")
print("d: jump 10 frames forward")
print("w: looping/non-looping")
print("v: double speed (this can be applied multiple times)")
print("b: half speed (this can be applied multiple times)")
print("n: quit")
print("h: help")
print("=" * columns)
print(
'current frame index: {}/{} (press "n" to quit)'.format(
plot_params.current_frame, plot_params.total_num_frames - 1
)
)
plotter.fig.canvas.mpl_connect("key_press_event", press)
while True:
reset_trail = False
if plot_params.confirmed:
break
if plot_params.playing:
plot_params.current_frame += plot_params.playback_speed
if plot_params.current_frame >= plot_params.total_num_frames:
if plot_params.looping:
plot_params.current_frame %= plot_params.total_num_frames
reset_trail = True
else:
plot_params.current_frame = plot_params.total_num_frames - 1
if plot_params.current_frame < 0:
if plot_params.looping:
plot_params.current_frame %= plot_params.total_num_frames
reset_trail = True
else:
plot_params.current_frame = 0
yield plot_params
task.update(plot_params.current_frame, reset_trail)
plotter.update()
def plot_skeleton_motion_interactive(skeleton_motion, task_name=""):
"""
Visualize a skeleton motion along its first dimension interactively.
:param skeleton_motion:
:param task_name:
:type skeleton_motion: SkeletonMotion
:type task_name: string, optional
"""
for _ in plot_skeleton_motion_interactive_base(skeleton_motion, task_name):
pass
def plot_skeleton_motion_interactive_multiple(*callables, sync=True):
for _ in zip(*callables):
if sync:
for p1, p2 in zip(_[:-1], _[1:]):
p2.sync(p1)
# def plot_skeleton_motion_interactive_multiple_same(skeleton_motions, task_name=""):
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