def gen_dynamic_list_polygon(lottie, dynamic_list):
"""
Generates the bline corresponding to polygon layer
Args:
lottie (dict) : Lottie format polygon layer will be stored here
dynamic_list (lxml.etree._Element) : Synfig format points of polygon
Returns:
(None)
"""
################## SECTION 1 ################
# Inserting the waypoints if not animated, finding the first and last frame
# Calculating the path after this
window = {}
window["first"] = sys.maxsize
window["last"] = -1
count = 0
for entry in dynamic_list:
pos = entry
update_frame_window(pos[0], window)
new_pos = gen_dummy_waypoint(pos, "entry", "vector")
pos.getparent().remove(pos)
dynamic_list.insert(count, new_pos)
append_path(new_pos[0], dynamic_list[count], "pos_path", "vector")
count += 1
layer = dynamic_list.getparent().getparent()
for chld in layer:
if chld.tag == "param":
if chld.attrib["name"] == "origin":
origin = chld
# Animating the origin
update_frame_window(origin[0], window)
origin_parent = origin.getparent()
origin = gen_dummy_waypoint(origin, "param", "vector", "origin")
update_child_at_parent(origin_parent, origin, "param", "origin")
# Generate path for the origin component
origin_dict = {}
origin[0].attrib["transform_axis"] = "true"
gen_properties_multi_dimensional_keyframed(origin_dict, origin[0], 0)
if window["first"] == sys.maxsize and window["last"] == -1:
window["first"] = window["last"] = 0
################ END OF SECTION 1 ##############
################ SECTION 2 #####################
# Generating values for all the frames in the window
fr = window["first"]
while fr <= window["last"]:
st_val, en_val = insert_dict_at(lottie, -1, fr, False)
for entry in dynamic_list:
# Only two childs, one should be animated, other one is path
for child in entry:
if child.tag == "pos_path":
dictionary = ast.literal_eval(child.text)
pos_cur = get_vector_at_frame(dictionary, fr)
pos_next = get_vector_at_frame(dictionary, fr + 1)
tangent1_cur, tangent2_cur = Vector(0, 0), Vector(0, 0)
tangent1_next, tangent2_next = Vector(0, 0), Vector(0, 0)
# Adding origin to each vertex
origin_cur = get_vector_at_frame(origin_dict, fr)
origin_next = get_vector_at_frame(origin_dict, fr + 1)
for i in range(len(pos_cur)):
pos_cur[i] += origin_cur[i]
for i in range(len(pos_next)):
pos_next[i] += origin_next[i]
# Store values in dictionary
st_val["i"].append(tangent1_cur.get_list())
st_val["o"].append(tangent2_cur.get_list())
st_val["v"].append(pos_cur)
en_val["i"].append(tangent1_next.get_list())
en_val["o"].append(tangent2_next.get_list())
en_val["v"].append(pos_next)
fr += 1
# Setting the final time
lottie.append({})
lottie[-1]["t"] = fr
def gen_dynamic_list_polygon(lottie, dynamic_list):
"""
Generates the bline corresponding to polygon layer
Args:
lottie (dict) : Lottie format polygon layer will be stored here
dynamic_list (common.Param.Param) : Synfig format points of polygon
Returns:
(None)
"""
################## SECTION 1 ################
# Inserting the waypoints if not animated, finding the first and last frame
# Calculating the path after this
window = {}
window["first"] = sys.maxsize
window["last"] = -1
dynamic_list = Bline(dynamic_list[0], dynamic_list)
for entry in dynamic_list.get_entry_list():
pos = entry["vector"]
pos.update_frame_window(window)
z = Param(pos.getparent(), pos.getparent().getparent())
z.animate("vector", True)
entry["vector"] = z
layer = dynamic_list.get_layer().get_layer()
origin = layer.get_param("origin")
# Animating the origin
origin.update_frame_window(window)
origin.animate("vector")
if window["first"] == sys.maxsize and window["last"] == -1:
window["first"] = window["last"] = 0
################ END OF SECTION 1 ##############
################ SECTION 2 #####################
# Generating values for all the frames in the window
fr = window["first"]
while fr <= window["last"]:
st_val, en_val = insert_dict_at(lottie, -1, fr, False)
for entry in dynamic_list.get_entry_list():
pos_cur = entry["vector"].get_value(fr)
pos_next = entry["vector"].get_value(fr + 1)
tangent1_cur, tangent2_cur = Vector(0, 0), Vector(0, 0)
tangent1_next, tangent2_next = Vector(0, 0), Vector(0, 0)
# Adding origin to each vertex
origin_cur = origin.get_value(fr)
origin_next = origin.get_value(fr + 1)
for i in range(len(pos_cur)):
pos_cur[i] += origin_cur[i]
for i in range(len(pos_next)):
pos_next[i] += origin_next[i]
# Store values in dictionary
st_val["i"].append(tangent1_cur.get_list())
st_val["o"].append(tangent2_cur.get_list())
st_val["v"].append(pos_cur)
en_val["i"].append(tangent1_next.get_list())
en_val["o"].append(tangent2_next.get_list())
en_val["v"].append(pos_next)
fr += 1
# Setting the final time
lottie.append({})
lottie[-1]["t"] = fr
