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animations.py
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animations.py
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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
"""The NeuroBlender animations module.
NeuroBlender is a Blender add-on to create artwork from neuroscientific data.
This module implements simple animations.
"""
import numpy as np
import mathutils
import bpy
from bpy.types import PropertyGroup as pg
from bpy.types import (Operator,
UIList,
Menu)
from bpy.props import (StringProperty,
EnumProperty,
FloatVectorProperty,
IntProperty,
FloatProperty)
from . import (materials as nb_ma,
properties as nb_pr,
utils as nb_ut)
class NB_OT_set_animations(Operator):
bl_idname = "nb.set_animations"
bl_label = "Set animations"
bl_description = "(Re)set all animations in the preset"""
bl_options = {"REGISTER", "UNDO", "PRESET"}
def execute(self, context):
scn = context.scene
nb = scn.nb
nb_preset = nb.presets[nb.index_presets]
nb_anims = nb.animations
# camera path animations
cam = bpy.data.objects[nb_preset.cameras[nb_preset.index_cameras].name]
del_indices, cam_anims = [], []
for i, anim in enumerate(nb_anims):
if ((anim.animationtype == "camerapath") & (anim.is_rendered)):
del_indices.append(i)
cam_anims.append(anim)
self.clear_camera_path_animations(cam, nb_anims, del_indices)
self.create_camera_path_animations(cam, cam_anims)
# slice fly-throughs
slice_anims = [anim for anim in nb_anims
if ((anim.animationtype == "carver") &
(anim.is_rendered))]
# delete previous animation on slicebox
for anim in slice_anims:
# vvol = nb.voxelvolumes[anim.anim_voxelvolume]
vvol = bpy.data.objects[anim.anim_voxelvolume]
vvol.animation_data_clear()
for anim in slice_anims:
vvol = nb.voxelvolumes[anim.anim_voxelvolume]
self.animate_slicebox(vvol, anim, anim.axis,
anim.frame_start, anim.frame_end,
anim.repetitions, anim.offset)
# time series
time_anims = [anim for anim in nb_anims
if ((anim.animationtype == "timeseries") &
(anim.is_rendered))]
for anim in time_anims:
self.animate_timeseries(anim)
return {"FINISHED"}
class NB_OT_animate_camerapath(Operator):
bl_idname = "nb.animate_camerapath"
bl_label = "Set animations"
bl_description = "Add a camera trajectory animation"""
bl_options = {"REGISTER", "UNDO", "PRESET"}
name = StringProperty(
name="Name",
description="Specify a name for the animation",
default="CameraPathAnimation")
camera = StringProperty(
name="Cam",
description="Specify a name for the animation",
default="Cam")
def execute(self, context):
scn = context.scene
nb = scn.nb
# TODO: validate preset
nb_preset = nb.presets[nb.index_presets]
if ((bpy.data.objects.get(self.camera) is None) or
(nb_preset.cameras.get(self.camera) is None)):
return {"CANCELLED"}
ca = [nb.animations]
name = nb_ut.check_name(self.name, "", ca)
animprops = {"name": name,
"animationtype": 'camerapath',
"icon": "ANIM"}
anim = nb_ut.add_item(nb, "animations", animprops)
anim.animationtype = 'camerapath'
anim.camera = self.camera
self.animate(anim)
return {"FINISHED"}
def invoke(self, context, event):
scn = context.scene
nb = scn.nb
nb_preset = nb.presets[nb.index_presets]
nb_cam = nb_preset.cameras[nb_preset.index_cameras]
self.camera = nb_cam.name
return self.execute(context)
def animate(self, anim):
"""Set up a camera trajectory animation."""
scn = bpy.context.scene
nb = scn.nb
cam = bpy.data.objects.get(self.camera)
anims = self.select_animations(nb.animations, self.camera)
self.clear_camera_path_animations(cam, anims)
self.create_camera_path_animations(cam, anims)
nb_ut.validate_anims_campath(anims)
def clear_camera_path_animations(self, cam, anims):
"""Remove all camera trajectory animations."""
for anim in anims:
self.clear_camera_path_animation(cam, anim)
self.update_cam_constraints(cam, anims)
def clear_camera_path_animation(self, cam, anim):
"""Remove a camera trajectory animation."""
self.clear_CP_evaltime(anim)
self.clear_CP_followpath(anim)
self.remove_CP_followpath(cam, anim)
@staticmethod
def clear_CP_evaltime(anim):
"""Remove modifiers on campath evaluation time."""
actname = '{}Action'.format(anim.campaths_enum)
try:
action = bpy.data.actions[actname]
fcu = action.fcurves.find("eval_time")
except:
pass
else:
""" FIXME: get rid of hacky mod removal:
it fails when anim.frame_start/end is changed
"""
for mod in fcu.modifiers:
if ((mod.frame_start == anim.frame_start) &
(mod.frame_end == anim.frame_end)):
fcu.modifiers.remove(mod)
@staticmethod
def clear_CP_followpath(anim):
"""Remove the keyframes on the FollowPath constraint."""
actname = '{}Action'.format(anim.camera)
props = ['use_fixed_location', 'offset_factor',
'forward_axis', 'influence']
for prop in props:
dpath = 'constraints["{}"].{}'.format(anim.cnsname, prop)
try:
act = bpy.data.actions[actname]
except:
pass
else:
fcu = act.fcurves.find(dpath)
if fcu is not None:
bpy.data.actions[actname].fcurves.remove(fcu)
@staticmethod
def remove_CP_followpath(cam, anim):
"""Delete a FollowPath constraint from the camera."""
try:
cns = cam.constraints[anim.cnsname]
except KeyError:
pass
else:
cam.constraints.remove(cns)
@staticmethod
def update_cam_constraints(cam, cam_anims):
"""Update the basic constraints of the camera."""
scn = bpy.context.scene
try:
action = bpy.data.actions['{}Action'.format(cam.name)]
except KeyError:
pass
else:
props = ["use_location_x", "use_location_y", "use_location_z",
"use_rotation_x", "use_rotation_y", "use_rotation_z"]
for prop in props:
dpath = 'constraints["Child Of"].{}'.format(prop)
fcu = action.fcurves.find(dpath)
action.fcurves.remove(fcu)
# add the constraint keyframes back again
cns = cam.constraints["Child Of"]
timeline = generate_timeline(scn, cam_anims)
restrict_trans_timeline(scn, cns, timeline, group="ChildOf")
dpath = 'constraints["TrackToObject"].influence'
fcu = action.fcurves.find(dpath)
action.fcurves.remove(fcu)
# add the constraint keyframes back again
cns = cam.constraints["TrackToObject"]
timeline = generate_timeline(scn, cam_anims, trackcentre=True)
restrict_incluence_timeline(scn, cns, timeline, group="TrackTo")
def create_camera_path_animations(self, cam, anims):
"""Keyframe a set of camera animations."""
if not anims:
return
scn = bpy.context.scene
nb = scn.nb
nb_preset = nb.presets[nb.index_presets]
centre = bpy.data.objects[nb_preset.centre]
box = bpy.data.objects[nb_preset.box]
# NOTE: there is no way to reorder constraints without ops
# workaround: remove all constraints and add them again later
# alternative: add this in somewhere
# override = bpy.context.copy()
# override['constraint'] = cns
# for _ in range(0, n_cns):
# bpy.ops.constraint.move_up(override, constraint=cns.name)
override = bpy.context.copy()
for cns in cam.constraints:
override['constraint'] = cns
bpy.ops.constraint.delete(override)
for anim in anims:
self.animate_campath(anim)
self.animate_camera(anim)
cnsCO = nb_ut.add_constraint(cam, "CHILD_OF", "Child Of", box)
timeline = generate_timeline(scn, anims)
restrict_trans_timeline(scn, cnsCO, timeline, group="ChildOf")
cnsTT = nb_ut.add_constraint(cam, "TRACK_TO", "TrackToObject", centre)
timeline = generate_timeline(scn, anims, trackcentre=True)
restrict_incluence_timeline(scn, cnsTT, timeline, group="TrackTo")
@staticmethod
def animate_campath(anim=None):
"""Set up camera path animation."""
scn = bpy.context.scene
try:
campath = bpy.data.objects[anim.campaths_enum]
except KeyError:
return
campath.data.use_path = True
actname = "{}Action".format(campath.data.name)
try:
fcu = bpy.data.actions[actname].fcurves.find("eval_time")
except:
animdata = campath.data.animation_data_create()
animdata.action = bpy.data.actions.new(actname)
fcu = animdata.action.fcurves.new("eval_time")
mod = fcu.modifiers.new('GENERATOR')
intercept, slope, _ = calculate_coefficients(campath, anim)
mod.coefficients = (intercept, slope)
mod.use_additive = True
mod.use_restricted_range = True
mod.frame_start = anim.frame_start
mod.frame_end = anim.frame_end
@staticmethod
def animate_camera(anim, cns=None):
"""Set up camera animation."""
scn = bpy.context.scene
try:
cam = bpy.data.objects[anim.camera]
except KeyError:
return
frame_current = scn.frame_current
if cns is None:
cnsname = "FollowPath_{}".format(anim.name)
campath = bpy.data.objects.get(anim.campaths_enum)
cns = nb_ut.add_constraint(cam, "FOLLOW_PATH", cnsname,
campath, anim.tracktype)
anim.cnsname = cns.name
else:
cnsname = anim.cnsname
restrict_incluence(cns, anim, group=cnsname)
cns.offset = anim.offset * -100
# TODO: build fcurve instead of keyframing
interval_head = [scn.frame_start, anim.frame_start - 1]
interval_anim = [anim.frame_start, anim.frame_end]
interval_tail = [anim.frame_end + 1, scn.frame_end]
ivs = [interval_head, interval_tail, interval_anim]
vals = [(1, 0, 'TRACK_NEGATIVE_Z'),
(1, 0, 'TRACK_NEGATIVE_Z'),
(0, anim.offset,
'FORWARD_Z' if anim.reverse else 'TRACK_NEGATIVE_Z')]
for iv, val in zip(ivs, vals):
for fr in iv:
scn.frame_set(fr)
cns.use_fixed_location = val[0]
cns.offset_factor = val[1]
cns.forward_axis = val[2]
cns.keyframe_insert("use_fixed_location", group=cnsname)
cns.keyframe_insert("offset_factor", group=cnsname)
cns.keyframe_insert("forward_axis", group=cnsname)
scn.frame_set(frame_current)
@staticmethod
def select_animations(anims, camname=""):
cam_anims = [anim for anim in anims
if anim.animationtype == "camerapath"]
ren_anims = [anim for anim in cam_anims
if anim.is_rendered]
if camname:
return [anim for anim in ren_anims
if anim.camera == camname]
else:
return ren_anims
class NB_OT_animate_carver(Operator):
bl_idname = "nb.animate_carver"
bl_label = "Set carver animation"
bl_description = "Add a carver animation"""
bl_options = {"REGISTER", "UNDO", "PRESET"}
name = StringProperty(
name="Name",
description="Specify a name for the animation",
default="CarverAnimation")
nb_object_data_path = StringProperty(
name="Carveobject data path",
description="Specify a the path to the carveobject")
sliceproperty = EnumProperty(
name="Property to animate",
description="Select property to animate",
items=[("Thickness", "Thickness", "Thickness", 0),
("Position", "Position", "Position", 1),
("Angle", "Angle", "Angle", 2)],
default="Position")
axis = EnumProperty(
name="Animation axis",
description="switch between animation axes",
items=[("X", "X", "X", 0),
("Y", "Y", "Y", 1),
("Z", "Z", "Z", 2)],
default="Z")
def execute(self, context):
scn = context.scene
nb = scn.nb
ca = [nb.animations]
name = nb_ut.check_name(self.name, "", ca)
animprops = {"name": name,
"animationtype": 'carver',
"icon": "MOD_BOOLEAN",
"nb_object_data_path": self.nb_object_data_path,
"sliceproperty": self.sliceproperty,
"axis": self.axis}
anim = nb_ut.add_item(nb, "animations", animprops)
anim.animationtype = 'carver'
if anim.nb_object_data_path != 'no_carveobjects':
self.animate(anim)
return {"FINISHED"}
@staticmethod
def animate(anim):
"""Set up a carver animation."""
scn = bpy.context.scene
nb = scn.nb
nb_ob = scn.path_resolve(anim.nb_object_data_path)
try:
pg_sc1 = bpy.types.TractProperties
except AttributeError:
pg_sc1 = pg.bl_rna_get_subclass_py("TractProperties")
aca = bpy.types.NB_OT_animate_carver
if isinstance(nb_ob, pg_sc1):
aca.animate_carver_tracts(anim)
else:
aca.animate_carver_voxelvolumes(anim)
# update
bpy.context.scene.frame_current = scn.frame_current
@staticmethod
def animate_carver_tracts(anim):
"""Animate a tract carver."""
scn = bpy.context.scene
nb_ob = scn.path_resolve(anim.nb_object_data_path)
tractob = bpy.data.objects[nb_ob.name]
rangedict = {'bevel_factor_start': [0, 1],
'bevel_depth': [0, tractob.data.bevel_depth]}
prop = anim.sliceproperty
prop_path = '{}'.format(prop)
idx = 0
actionname = '{}Action'.format(anim.name)
if anim.rna_data_path:
prev_rna = eval(anim.rna_data_path)
if anim.rna_data_path == 'bpy.context.scene':
curve = None
ad = tractob.data.animation_data_create()
prev_rna.animation_data_clear()
elif prev_rna != tractob.data:
curve = prev_rna
ad = copy_animation_data(prev_rna, tractob.data)
prev_rna.animation_data_clear()
else:
curve = tractob.data
ad = tractob.data.animation_data_create()
restore_state_carver(anim, curve)
else:
ad = tractob.data.animation_data_create()
fcu = get_animation_fcurve(anim, ad, data_path=prop_path,
idx=idx, actionname=actionname)
fcu.data_path = anim.fcurve_data_path = prop_path
fcu.array_index = anim.fcurve_array_index = idx
anim.rna_data_path = 'bpy.data.objects["{}"].data'.format(tractob.name)
anim.default_value = eval('{}.{}'.format(anim.rna_data_path, prop_path))
build_fcurve(rangedict[prop], fcu, anim)
@staticmethod
def animate_carver_voxelvolumes(anim):
"""Animate a voxelvolume carver."""
scn = bpy.context.scene
rangedict = {'slicethickness': [0, 1],
'sliceposition': [-1, 1],
'sliceangle': [-1.5708, 1.5708]}
prop = "slice{}".format(anim.sliceproperty.lower())
prop_path = '{}.{}'.format(anim.nb_object_data_path, prop)
idx = 'XYZ'.index(anim.axis)
actionname = 'SceneAction'
if anim.rna_data_path:
if anim.rna_data_path != 'bpy.context.scene':
prev_rna = eval(anim.rna_data_path)
prev_rna.animation_data_clear()
restore_state_carver(anim, prev_rna)
else:
restore_state_carver(anim)
else:
restore_state_carver(anim)
ad = scn.animation_data_create()
fcu = get_animation_fcurve(anim, ad, data_path=prop_path,
idx=idx, actionname=actionname)
fcu.data_path = anim.fcurve_data_path = prop_path
fcu.array_index = anim.fcurve_array_index = idx
anim.rna_data_path = 'bpy.context.scene'
anim.default_value = scn.path_resolve('{}[{}]'.format(prop_path, idx))
build_fcurve(rangedict[prop], fcu, anim)
class NB_OT_animate_timeseries(Operator):
bl_idname = "nb.animate_timeseries"
bl_label = "Set time series animation"
bl_description = "Add a time series animation"""
bl_options = {"REGISTER", "UNDO", "PRESET"}
name = StringProperty(
name="Name",
description="Specify a name for the animation",
default="TimeSeriesAnimation")
nb_object_data_path = StringProperty(
name="Scalargroup data path",
description="Specify a the path to the scalargroup")
def execute(self, context):
scn = context.scene
nb = scn.nb
ca = [nb.animations]
name = nb_ut.check_name(self.name, "", ca)
animprops = {"name": name,
"animationtype": 'timeseries',
"icon": "TIME",
"nb_object_data_path": self.nb_object_data_path}
anim = nb_ut.add_item(nb, "animations", animprops)
anim.animationtype = 'timeseries'
self.animate(anim)
return {"FINISHED"}
@staticmethod
def animate(anim):
"""Set up a texture time series animation."""
scn = bpy.context.scene
nb = scn.nb
# FIXME: the path might change on deleting objects
prop = 'index_scalars'
prop_path = '{}.{}'.format(anim.nb_object_data_path, prop)
# get or create the fcurve for this animation
ad = scn.animation_data_create()
fcu = get_animation_fcurve(anim, ad, data_path=prop_path)
# update the data_path and index
fcu.data_path = anim.fcurve_data_path = prop_path
# reset the state of the previous prop to the frame-0 value
restore_state_timeseries(anim)
anim.default_value = scn.path_resolve(prop_path)
# Calculate the coordinates of the points in the fcurve
sg = scn.path_resolve(anim.nb_object_data_path)
build_fcurve([0, len(sg.scalars)], fcu, anim)
# update
bpy.context.scene.frame_current = scn.frame_current
def animate_ts_vvol(self): # scratch
scn = bpy.context.scene
frame_current = scn.frame_current
mat = bpy.data.materials[scalargroup.name]
tss = [(i, ts) for i, ts in enumerate(mat.texture_slots)
if ts is not None]
ntss = len(tss)
nframes = anim.frame_end - anim.frame_start
fptp = np.floor(nframes/ntss)
interpolation = 'CONSTANT' # 'CONSTANT' TODO: 'LINEAR' 'BEZIER'
fade_interval = np.floor(fptp / 3)
props = {"density_factor": 'CONSTANT',
"emission_factor": interpolation,
"emission_color_factor": 'CONSTANT',
"emit_factor": interpolation,
"diffuse_color_factor": 'CONSTANT',
"alpha_factor": 'CONSTANT'}
# # TODO
# interval_head = [scn.frame_start, anim.frame_start - 1]
# interval_anim = [anim.frame_start, anim.frame_end]
# interval_tail = [anim.frame_end + 1, scn.frame_end]
# can I just keyframe the time index? and let the update function do the work?
# yes, but this is only for on/off?
for i, ts in tss:
tp_start = i*fptp + 1
tp_end = tp_start + fptp
tp_in_start = tp_start - fade_interval
tp_in_end = tp_start + fade_interval
tp_out_start = tp_end - fade_interval
tp_out_end = tp_end + fade_interval
kfs_constant = {tp_start-1: 0, tp_start: 1,
tp_end: 1, tp_end+1: 0}
kfs_linear = {tp_in_start: 0, tp_in_end: 1,
tp_out_start: 1, tp_out_end: 0}
kfs_bezier = {tp_in_start: 0, tp_in_end: 1,
tp_out_start: 1, tp_out_end: 0}
# insert the animation
for prop, interp in props.items():
kfs = eval("kfs_%s" % interp.lower())
for k, v in kfs.items():
scn.frame_set(k)
exec('ts.%s = v' % prop)
ts.keyframe_insert(data_path=prop)
anim = mat.animation_data
for fcu in anim.action.fcurves:
fcu.color_mode = 'AUTO_RAINBOW'
propname = fcu.data_path.split('.')[-1]
for kf in fcu.keyframe_points:
kf.interpolation = props[propname]
scn.frame_set(frame_current)
class NB_OT_animate_morph(Operator):
bl_idname = "nb.animate_morph"
bl_label = "Set morph animation"
bl_description = "Add a morph animation"""
bl_options = {"REGISTER", "UNDO", "PRESET"}
name = StringProperty(
name="Name",
description="Specify a name for the animation",
default="MorphAnimation")
animationtype = StringProperty(
name="Animation type",
description="dummy",
default="morph")
nb_object_data_path = EnumProperty(
name="Animation object",
description="Specify path to object to animate",
items=nb_pr.anim_nb_object_enum_callback)
# nb_object_data_path = StringProperty(
# name="Morphobject data path",
# description="Specify a the path to the morphobject")
nb_target_data_path = StringProperty(
name="Morphobject data path",
description="Specify a the path to the morphobject")
def draw(self, context):
row = self.layout.row()
row.prop(self, "nb_object_data_path")
def execute(self, context):
scn = context.scene
nb = scn.nb
ca = [nb.animations]
name = nb_ut.check_name(self.name, "", ca)
animprops = {"name": name,
"animationtype": 'morph',
"icon": "MOD_BOOLEAN",
"nb_object_data_path": self.nb_object_data_path,
"nb_target_data_path": self.nb_target_data_path}
anim = nb_ut.add_item(nb, "animations", animprops)
anim.animationtype = 'morph'
if anim.nb_object_data_path != 'no_objects':
self.animate(anim)
# TODO: carved objects?
return {"FINISHED"}
def invoke(self, context, event):
return context.window_manager.invoke_props_dialog(self)
@staticmethod
def animate(anim):
"""Set up a carver animation."""
scn = bpy.context.scene
nb = scn.nb
amo = bpy.types.NB_OT_animate_morph
amo.animate_morph_surfaces(anim)
# update
scn.frame_current = scn.frame_current
@staticmethod
def animate_morph_surfaces(anim):
"""Animate a surface morph."""
scn = bpy.context.scene
nb_ob = scn.path_resolve(anim.nb_object_data_path)
ob = bpy.data.objects[nb_ob.name]
amo = bpy.types.NB_OT_animate_morph
amo.add_shape_key(anim, ob)
amo.update_fcurve(anim)
@staticmethod
def update_fcurve(anim):
scn = bpy.context.scene
nb_ob = scn.path_resolve(anim.nb_object_data_path)
ob = bpy.data.objects[nb_ob.name]
nblocks = len(ob.data.shape_keys.key_blocks)
rangedict = {'eval_time': [10, nblocks * 10]}
ad_rna = ob.data.shape_keys
prop = 'eval_time'
prop_path = '{}'.format(prop)
idx = 0
actionname = '{}Action'.format(anim.name)
if anim.rna_data_path:
prev_rna = eval(anim.rna_data_path)
if anim.rna_data_path == 'bpy.context.scene':
ad = ad_rna.animation_data_create()
prev_rna.animation_data_clear()
elif prev_rna != ad_rna:
ad = copy_animation_data(prev_rna, ad_rna)
prev_rna.animation_data_clear()
else:
ad = ad_rna.animation_data_create()
# restore_state_morph(anim)
else:
ad = ad_rna.animation_data_create()
fcu = get_animation_fcurve(anim, ad, data_path=prop_path,
idx=idx, actionname=actionname)
fcu.data_path = anim.fcurve_data_path = prop_path
fcu.array_index = anim.fcurve_array_index = idx
anim.rna_data_path = 'bpy.data.shape_keys["{}"]'.format(ad_rna.name)
anim.default_value = eval('{}.{}'.format(anim.rna_data_path, prop_path))
build_fcurve(rangedict[prop], fcu, anim)
@staticmethod
def add_shape_key(anim, ob):
from_point = anim.nb_target_data_path == 'from_point'
# get target shape object
scn = bpy.context.scene
if from_point:
shape = None
else:
nb_tg = scn.path_resolve(anim.nb_target_data_path)
shape = bpy.data.objects[nb_tg.name]
# hide the target object
shape.hide = shape.hide_render = shape != ob
# add shape key
amo = bpy.types.NB_OT_animate_morph
key_block = amo.add_key_block(ob, shape, from_point=from_point)
# turn into absolute shape key
shape_keys = ob.data.shape_keys
shape_keys.use_relative = False
ob.active_shape_key_index = len(ob.data.shape_keys.key_blocks) - 1 # TODO: always add at end
override = bpy.context.copy()
override['object'] = ob
bpy.ops.object.shape_key_retime(override)
return shape_keys
@staticmethod
def add_key_block(ob, shape, from_point=False):
if from_point:
shape_key = ob.shape_key_add(name='from_point', from_mix=False)
for vert in ob.data.vertices:
shape_key.data[vert.index].co = [0, 0, 0]
else:
shape_key = ob.shape_key_add(name=shape.name, from_mix=False)
for vert in shape.data.vertices:
shape_key.data[vert.index].co = vert.co
return shape_key
class NB_OT_import_animation(Operator):
bl_idname = "nb.import_animations"
bl_label = "New animation"
bl_description = "Create a new animation"
bl_options = {"REGISTER", "UNDO", "PRESET"}
name = StringProperty(
name="Name",
description="Specify a name for the animation",
default="Anim")
parentpath = StringProperty(
name="Parentpath",
description="The path to the parent of the object",
default="nb")
animationtype = EnumProperty(
name="Animation type",
description="Switch between animation types",
items=[("camerapath", "Camera trajectory",
"Let the camera follow a trajectory", 0),
("carver", "Carver",
"Animate a carver", 1),
("timeseries", "Time series",
"Play a time series", 2)],
default='camerapath')
def execute(self, context):
scn = context.scene
nb = scn.nb
ca = [nb.animations]
name = nb_ut.check_name(self.name, "", ca)
icondict = {"CameraPath": "ANIM",
"Carver": "MOD_BOOLEAN",
"TimeSeries": "TIME"}
animprops = {"name": name,
"animationtype": self.animationtype, # FIXME!! reverts back to default in properties (CameraPath) for some reason
"icon": icondict[self.animationtype]}
nb_ut.add_item(nb, "animations", animprops)
# op = 'bpy.ops.nb.animate_{}'.format(self.animationtype)
# op('INVOKE_DEFAULT')
infostring = 'added animation "%s"'
info = [infostring % (name)]
self.report({'INFO'}, '; '.join(info))
return {"FINISHED"}
def invoke(self, context, event):
scn = context.scene
nb = scn.nb
self.animationtype = nb.animationtype
return self.execute(context)
class NB_OT_campoint_add(Operator):
bl_idname = "nb.campoint_add"
bl_label = "New camera position"
bl_description = "Create a new camera position in campath"
bl_options = {"REGISTER", "UNDO", "PRESET"}
campathname = StringProperty(
name="Camera trajectory",
description="Specify the curve for the camera trajectory",
default="")
co = FloatVectorProperty(
name="camera coordinates",
description="Specify camera coordinates",
default=[0.0, 0.0, 0.0])
def execute(self, context):
scn = context.scene
campath = bpy.data.objects[self.campathname]
try:
spline = campath.data.splines[0]
if spline.type == 'POLY':
pts = spline.points
else:
pts = spline.bezier_points
pts.add()
except:
spline = campath.data.splines.new('POLY')
if spline.type == 'POLY':
spline.points[-1].co = tuple(self.co) + (1,)
else:
spline.bezier_points[-1].co = tuple(self.co)
# TODO: handles
spline.order_u = len(spline.points) - 1
spline.use_endpoint_u = True
infostring = 'added campoint "%02f, %02f, %02f"'
info = [infostring % tuple(self.co)]
self.report({'INFO'}, '; '.join(info))
return {"FINISHED"}
def invoke(self, context, event):
scn = context.scene
nb = scn.nb
cam = scn.camera
presetname = cam.data.name[:-7] # TODO
preset = scn.path_resolve('nb.presets["{}"]'.format(presetname))
centre = bpy.data.objects[preset.centre]
for dim in [0, 1, 2]:
print(cam.location[dim], preset.dims[dim] / 2, centre.location[dim])
self.co[dim] = cam.location[dim] * preset.dims[dim] / 2 + centre.location[dim]
anim = nb.animations[nb.index_animations]
self.campathname = anim.campaths_enum
return self.execute(context)
class NB_OT_campath_add(Operator):
bl_idname = "nb.campath_add"
bl_label = "New camera path"
bl_description = "Create a new path for the camera"
bl_options = {"REGISTER", "UNDO", "PRESET"}
name = StringProperty(
name="Name",
description="Specify a name for the camera path",
default="")
datapath_camera = StringProperty(
name="Camera data path",
description="Specify a the path to the camera",
default="nb.presets[0].cameras[0]")
index_presets = IntProperty(
name="index presets",
description="Specify preset index",
default=-1)
index_animations = IntProperty(
name="index animations",
description="Specify animation index",
default=-1)
pathtype = EnumProperty(
name="Pathtype",
description="Trajectory types for the camera animation",
items=[("Circular", "Circular",
"Circular trajectory from camera position", 0),
("Streamline", "Streamline",
"Curvilinear trajectory from a streamline", 1),
("Select", "Select",
"Curvilinear trajectory from curve", 2),
("Create", "Create",
"Create a path from camera positions", 3)],
default="Circular")
axis = EnumProperty(
name="Animation axis",
description="switch between animation axes",
items=[("X", "X", "X", 0),
("Y", "Y", "Y", 1),
("Z", "Z", "Z", 2)],
default="Z")
anim_tract = StringProperty(
name="Animation streamline",
description="Tract to animate",
default="")
spline_index = IntProperty(
name="streamline index",
description="index of the streamline to animate",
min=0,
default=0)
anim_curve = StringProperty(