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105 lines
4.3 KiB
Python
105 lines
4.3 KiB
Python
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from __future__ import absolute_import
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from camera.camera import Camera
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from utils.config_ops import DictAsObject
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from utils.config_ops import digest_config
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# TODO: Add an attribute to mobjects under which they can specify that they should just
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# map their centers but remain otherwise undistorted (useful for labels, etc.)
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class MappingCamera(Camera):
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CONFIG = {
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"mapping_func" : lambda p : p,
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"min_anchor_points" : 50,
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"allow_object_intrusion" : False
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}
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def points_to_pixel_coords(self, points):
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return Camera.points_to_pixel_coords(self, np.apply_along_axis(self.mapping_func, 1, points))
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def capture_mobjects(self, mobjects, **kwargs):
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mobjects = self.get_mobjects_to_display(mobjects, **kwargs)
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if self.allow_object_intrusion:
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mobject_copies = mobjects
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else:
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mobject_copies = [mobject.copy() for mobject in mobjects]
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for mobject in mobject_copies:
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if isinstance(mobject, VMobject) and \
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0 < mobject.get_num_anchor_points() < self.min_anchor_points:
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mobject.insert_n_anchor_points(self.min_anchor_points)
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Camera.capture_mobjects(
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self, mobject_copies,
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include_submobjects = False,
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excluded_mobjects = None,
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)
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# Note: This allows layering of multiple cameras onto the same portion of the pixel array,
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# the later cameras overwriting the former
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#
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# TODO: Add optional separator borders between cameras (or perhaps peel this off into a
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# CameraPlusOverlay class)
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class MultiCamera(Camera):
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def __init__(self, *cameras_with_start_positions, **kwargs):
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self.shifted_cameras = [
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DictAsObject(
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{
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"camera" : camera_with_start_positions[0],
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"start_x" : camera_with_start_positions[1][1],
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"start_y" : camera_with_start_positions[1][0],
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"end_x" : camera_with_start_positions[1][1] + camera_with_start_positions[0].pixel_shape[1],
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"end_y" : camera_with_start_positions[1][0] + camera_with_start_positions[0].pixel_shape[0],
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})
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for camera_with_start_positions in cameras_with_start_positions
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]
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Camera.__init__(self, **kwargs)
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def capture_mobjects(self, mobjects, **kwargs):
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for shifted_camera in self.shifted_cameras:
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shifted_camera.camera.capture_mobjects(mobjects, **kwargs)
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self.pixel_array[
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shifted_camera.start_y:shifted_camera.end_y,
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shifted_camera.start_x:shifted_camera.end_x] \
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= shifted_camera.camera.pixel_array
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def set_background(self, pixel_array, **kwargs):
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for shifted_camera in self.shifted_cameras:
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shifted_camera.camera.set_background(
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pixel_array[
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shifted_camera.start_y:shifted_camera.end_y,
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shifted_camera.start_x:shifted_camera.end_x],
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**kwargs
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)
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def set_pixel_array(self, pixel_array, **kwargs):
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Camera.set_pixel_array(self, pixel_array, **kwargs)
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for shifted_camera in self.shifted_cameras:
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shifted_camera.camera.set_pixel_array(
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pixel_array[
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shifted_camera.start_y:shifted_camera.end_y,
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shifted_camera.start_x:shifted_camera.end_x],
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**kwargs
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)
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def init_background(self):
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Camera.init_background(self)
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for shifted_camera in self.shifted_cameras:
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shifted_camera.camera.init_background()
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# A MultiCamera which, when called with two full-size cameras, initializes itself
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# as a splitscreen, also taking care to resize each individual camera within it
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class SplitScreenCamera(MultiCamera):
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def __init__(self, left_camera, right_camera, **kwargs):
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digest_config(self, kwargs)
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self.left_camera = left_camera
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self.right_camera = right_camera
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half_width = self.pixel_shape[1] / 2
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for camera in [self.left_camera, self.right_camera]:
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camera.pixel_shape = (self.pixel_shape[0], half_width) # TODO: Round up on one if width is odd
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camera.init_background()
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camera.resize_frame_shape()
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camera.reset()
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MultiCamera.__init__(self, (left_camera, (0, 0)), (right_camera, (0, half_width)))
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