added: quat2euler feature set

Author: eigen-value

rot_mode.py

@@ -0,0 +1,387 @@
+'''
+Quat/Euler Rotation Mode Converter v0.1
+
+This script/addon:
+    - Changes (pose) bone rotation mode
+    - Converts keyframes from one rotation mode to another
+    - Creates fcurves/keyframes in target rotation mode
+    - Deletes previous fcurves/keyframes.
+    - Converts multiple bones
+    - Converts multiple Actions
+
+TO-DO:
+    - To convert object's rotation mode (alrady done in Mutant Bob script,
+		but not done in this one.
+    - To understand "EnumProperty" and write it well.
+    - Code clean
+    - ...
+
+GitHub: https://github.com/MarioMey/rotation_mode_addon/
+BlenderArtist thread: http://blenderartists.org/forum/showthread.php?388197-Quat-Euler-Rotation-Mode-Converter
+
+Mutant Bob did the "hard code" of this script. Thanks him!
+blender.stackexchange.com/questions/40711/how-to-convert-quaternions-keyframes-to-euler-ones-in-several-actions
+
+
+'''
+
+# bl_info = {
+#     "name": "Quat/Euler Rotation Mode Converter",
+#     "author": "Mario Mey / Mutant Bob",
+#     "version": (0, 1),
+#     "blender": (2, 76, 0),
+#     'location': '',
+#     "description": "Converts bones rotation mode",
+#     "warning": "",
+#     "wiki_url": "",
+#     "tracker_url": "https://github.com/MarioMey/rotation_mode_addon/",
+#     "category": "Animation"}
+
+import bpy
+
+order_list = ['QUATERNION', 'XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX']
+
+
+class convert():
+    def get_or_create_fcurve(self, action, data_path, array_index=-1, group=None):
+        for fc in action.fcurves:
+            if fc.data_path == data_path and (array_index < 0 or fc.array_index == array_index):
+                return fc
+
+        fc = action.fcurves.new(data_path, array_index)
+        fc.group = group
+        return fc
+
+    def add_keyframe_quat(self, action, quat, frame, bone_prefix, group):
+        for i in range(len(quat)):
+            fc = self.get_or_create_fcurve(action, bone_prefix + "rotation_quaternion", i, group)
+            pos = len(fc.keyframe_points)
+            fc.keyframe_points.add(1)
+            fc.keyframe_points[pos].co = [frame, quat[i]]
+            fc.update()
+
+    def add_keyframe_euler(self, action, euler, frame, bone_prefix, group):
+        for i in range(len(euler)):
+            fc = self.get_or_create_fcurve(action, bone_prefix + "rotation_euler", i, group)
+            pos = len(fc.keyframe_points)
+            fc.keyframe_points.add(1)
+            fc.keyframe_points[pos].co = [frame, euler[i]]
+            fc.update()
+
+    def frames_matching(self, action, data_path):
+        frames = set()
+        for fc in action.fcurves:
+            if fc.data_path == data_path:
+                fri = [kp.co[0] for kp in fc.keyframe_points]
+                frames.update(fri)
+        return frames
+
+    # Converts only one group/bone in one action - Quat to euler
+    def group_qe(self, obj, action, bone, bone_prefix, order):
+
+        pose_bone = bone
+        data_path = bone_prefix + "rotation_quaternion"
+        frames = self.frames_matching(action, data_path)
+        group = action.groups[bone.name]
+
+        for fr in frames:
+            quat = bone.rotation_quaternion.copy()
+            for fc in action.fcurves:
+                if fc.data_path == data_path:
+                    quat[fc.array_index] = fc.evaluate(fr)
+            euler = quat.to_euler(order)
+
+            self.add_keyframe_euler(action, euler, fr, bone_prefix, group)
+            bone.rotation_mode = order
+
+    # Converts only one group/bone in one action - Euler to Quat
+    def group_eq(self, obj, action, bone, bone_prefix, order):
+
+        pose_bone = bone
+        data_path = bone_prefix + "rotation_euler"
+        frames = self.frames_matching(action, data_path)
+        group = action.groups[bone.name]
+
+        for fr in frames:
+            euler = bone.rotation_euler.copy()
+            for fc in action.fcurves:
+                if fc.data_path == data_path:
+                    euler[fc.array_index] = fc.evaluate(fr)
+            quat = euler.to_quaternion()
+
+            self.add_keyframe_quat(action, quat, fr, bone_prefix, group)
+            bone.rotation_mode = order
+
+    # One Action - One Bone
+    def one_act_one_bon(self, obj, action, bone, order):
+        do = False
+        bone_prefix = ''
+
+        # What kind of conversion
+        cond1 = order == 'XYZ'
+        cond2 = order == 'XZY'
+        cond3 = order == 'YZX'
+        cond4 = order == 'YXZ'
+        cond5 = order == 'ZXY'
+        cond6 = order == 'ZYX'
+
+        order_euler = cond1 or cond2 or cond3 or cond4 or cond5 or cond6
+        order_quat = order == 'QUATERNION'
+
+        for fcurve in action.fcurves:
+            if fcurve.group.name == bone.name:
+
+                # If To-Euler conversion
+                if order != 'QUATERNION':
+                    if fcurve.data_path.endswith('rotation_quaternion'):
+                        do = True
+                        bone_prefix = fcurve.data_path[:-len('rotation_quaternion')]
+                        break
+
+                # If To-Quat conversion
+                else:
+                    if fcurve.data_path.endswith('rotation_euler'):
+                        do = True
+                        bone_prefix = fcurve.data_path[:-len('rotation_euler')]
+                        break
+
+        # If To-Euler conversion
+        if do and order != 'QUATERNION':
+            # Converts the group/bone from Quat to Euler
+            self.group_qe(obj, action, bone, bone_prefix, order)
+
+            # Removes quaternion fcurves
+            for key in action.fcurves:
+                if key.data_path == 'pose.bones["' + bone.name + '"].rotation_quaternion':
+                    action.fcurves.remove(key)
+
+        # If To-Quat conversion
+        elif do:
+            # Converts the group/bone from Euler to Quat
+            self.group_eq(obj, action, bone, bone_prefix, order)
+
+            # Removes euler fcurves
+            for key in action.fcurves:
+                if key.data_path == 'pose.bones["' + bone.name + '"].rotation_euler':
+                    action.fcurves.remove(key)
+
+        # Changes rotation mode to new one
+        bone.rotation_mode = order
+
+    # One Action, selected bones
+    def one_act_sel_bon(self, obj, action, pose_bones, order):
+        for bone in pose_bones:
+            self.one_act_one_bon(obj, action, bone, order)
+
+    # One action, all Bones (in Action)
+    def one_act_every_bon(self, obj, action, order):
+
+        # Collects pose_bones that are in the action
+        pose_bones = set()
+        # Checks all fcurves
+        for fcurve in action.fcurves:
+            # Look for the ones that has rotation_euler
+            if order == 'QUATERNION':
+                if fcurve.data_path.endswith('rotation_euler'):
+                    # If the bone from action really exists
+                    if fcurve.group.name in obj.pose.bones:
+                        if obj.pose.bones[fcurve.group.name] not in pose_bones:
+                            pose_bones.add(obj.pose.bones[fcurve.group.name])
+                    else:
+                        print(fcurve.group.name, 'does not exist in Armature. Fcurve-group is not affected')
+
+            # Look for the ones that has rotation_quaternion
+            else:
+                if fcurve.data_path.endswith('rotation_quaternion'):
+                    # If the bone from action really exists
+                    if fcurve.group.name in obj.pose.bones:
+                        if obj.pose.bones[fcurve.group.name] not in pose_bones:
+                            pose_bones.add(obj.pose.bones[fcurve.group.name])
+                    else:
+                        print(fcurve.group.name, 'does not exist in Armature. Fcurve-group is not affected')
+
+        # Convert current action and pose_bones that are in each action
+        for bone in pose_bones:
+            self.one_act_one_bon(obj, action, bone, order)
+
+    # All Actions, selected bones
+    def all_act_sel_bon(self, obj, pose_bones, order):
+        for action in bpy.data.actions:
+            for bone in pose_bones:
+                self.one_act_one_bon(obj, action, bone, order)
+
+    # All actions, All Bones (in each Action)
+    def all_act_every_bon(self, obj, order):
+        for action in bpy.data.actions:
+            self.one_act_every_bon(obj, action, order)
+
+
+convert = convert()
+
+
+# def initSceneProperties(scn):
+#
+# 	bpy.types.Scene.order_list = bpy.props.EnumProperty(
+# 	items = [('QUATERNION', 'QUATERNION', 'QUATERNION' ),
+# 	('XYZ', 'XYZ', 'XYZ' ),
+# 	('XZY', 'XZY', 'XZY' ),
+# 	('YXZ', 'YXZ', 'YXZ' ),
+# 	('YZX', 'YZX', 'YZX' ),
+# 	('ZXY', 'ZXY', 'ZXY' ),
+# 	('ZYX', 'ZYX', 'ZYX' ) ],
+# 	name = "Order",
+# 	description = "The target rotation mode")
+#
+# 	scn['order_list'] = 0
+#
+# 	return
+#
+# initSceneProperties(bpy.context.scene)
+
+
+# GUI (Panel)
+#
+class ToolsPanel(bpy.types.Panel):
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'TOOLS'
+    bl_category = "Tools"
+    bl_context = "posemode"
+    bl_label = 'Rigify Quat/Euler Converter'
+
+    # draw the gui
+    def draw(self, context):
+        layout = self.layout
+        scn = context.scene
+        # ~ toolsettings = context.tool_settings
+
+        col = layout.column(align=True)
+        row = col.row(align=True)
+
+        layout.prop(scn, 'order_list')
+
+        col = layout.column(align=True)
+        row = col.row(align=True)
+
+        col.label(text="Current Action:")
+        col.operator('current.selected')
+        col.operator('current.every')
+
+        row = col.row(align=True)
+        col = layout.column(align=True)
+
+        col.label(text="All Actions:")
+        col.operator('all.selected')
+        col.operator('all.every')
+
+
+class CONVERT_OT_current_action_selected_bones(bpy.types.Operator):
+    bl_label = 'Selected Bones'
+    bl_idname = 'current.selected'
+    bl_description = 'Converts selected bones in current Action'
+    bl_options = {'REGISTER', 'UNDO'}
+
+    # on mouse up:
+    def invoke(self, context, event):
+        self.execute(context)
+        return {'FINISHED'}
+
+    def execute(op, context):
+        obj = bpy.context.active_object
+        pose_bones = bpy.context.selected_pose_bones
+        action = obj.animation_data.action
+        order = order_list[bpy.context.scene['order_list']]
+
+        convert.one_act_sel_bon(obj, action, pose_bones, order)
+
+        return {'FINISHED'}
+
+
+class CONVERT_OT_current_action_every_bones(bpy.types.Operator):
+    bl_label = 'All Bones'
+    bl_idname = 'current.every'
+    bl_description = 'Converts every bone in current Action'
+    bl_options = {'REGISTER', 'UNDO'}
+
+    # on mouse up:
+    def invoke(self, context, event):
+        self.execute(context)
+        return {'FINISHED'}
+
+    def execute(op, context):
+        obj = bpy.context.active_object
+        pose_bones = bpy.context.selected_pose_bones
+        action = obj.animation_data.action
+        order = order_list[bpy.context.scene['order_list']]
+
+        convert.one_act_every_bon(obj, action, order)
+
+        return {'FINISHED'}
+
+
+class CONVERT_OT_all_actions_selected_bones(bpy.types.Operator):
+    bl_label = 'Selected Bone'
+    bl_idname = 'all.selected'
+    bl_description = 'Converts selected bones in every Action'
+    bl_options = {'REGISTER', 'UNDO'}
+
+    # on mouse up:
+    def invoke(self, context, event):
+        self.execute(context)
+        return {'FINISHED'}
+
+    def execute(op, context):
+        obj = bpy.context.active_object
+        pose_bones = bpy.context.selected_pose_bones
+        order = order_list[bpy.context.scene['order_list']]
+
+        convert.all_act_sel_bon(obj, pose_bones, order)
+
+        return {'FINISHED'}
+
+
+class CONVERT_OT_all_action_every_bones(bpy.types.Operator):
+    bl_label = 'All Bone'
+    bl_idname = 'all.every'
+    bl_description = 'Converts every bone in every Action'
+    bl_options = {'REGISTER', 'UNDO'}
+
+    # on mouse up:
+    def invoke(self, context, event):
+        self.execute(context)
+        return {'FINISHED'}
+
+    def execute(op, context):
+        obj = bpy.context.active_object
+        order = order_list[bpy.context.scene['order_list']]
+
+        convert.all_act_every_bon(obj, order)
+        return {'FINISHED'}
+
+
+def register():
+    items = [('QUATERNION', 'QUATERNION', 'QUATERNION'),
+             ('XYZ', 'XYZ', 'XYZ'),
+             ('XZY', 'XZY', 'XZY'),
+             ('YXZ', 'YXZ', 'YXZ'),
+             ('YZX', 'YZX', 'YZX'),
+             ('ZXY', 'ZXY', 'ZXY'),
+             ('ZYX', 'ZYX', 'ZYX')]
+
+    bpy.types.Scene.order_list = bpy.props.EnumProperty(items=items, name='Order',
+                                                        description="The target rotation mode", default='QUATERNION')
+
+    bpy.utils.register_class(ToolsPanel)
+    bpy.utils.register_class(CONVERT_OT_all_action_every_bones)
+    bpy.utils.register_class(CONVERT_OT_all_actions_selected_bones)
+    bpy.utils.register_class(CONVERT_OT_current_action_every_bones)
+    bpy.utils.register_class(CONVERT_OT_current_action_selected_bones)
+
+
+def unregister():
+    bpy.utils.unregister_class(ToolsPanel)
+    bpy.utils.unregister_class(CONVERT_OT_all_action_every_bones)
+    bpy.utils.unregister_class(CONVERT_OT_all_actions_selected_bones)
+    bpy.utils.unregister_class(CONVERT_OT_current_action_every_bones)
+    bpy.utils.unregister_class(CONVERT_OT_current_action_selected_bones)
+
+# bpy.utils.register_module(__name__)