__init__.py

@@ -27,20 +27,20 @@ bl_info = {
 
 from . import camera_lattice
 from . import tweak_lattice
+from . import operators
 import importlib
 
 modules = [
 	camera_lattice
 	,tweak_lattice
+	,operators
 ]
 
 def register():
 	for m in modules:
 		importlib.reload(m)
-		if hasattr(m, 'register'):
 		m.register()
 
 def unregister():
 	for m in modules:
-		if hasattr(m, 'unregister'):
 		m.unregister()

camera_lattice.py

@@ -8,33 +8,12 @@
 # 3D Lattices: Need to have a distance, thickness and Z resolution parameter.
 
 import bpy
-from typing import Tuple, List
 import math
 from mathutils import Vector
 from bpy.props import BoolProperty, PointerProperty, CollectionProperty, IntProperty, EnumProperty, FloatProperty
 from mathutils.geometry import intersect_point_line
 
-def bounding_box(points) -> Tuple[Vector, Vector]:
+from .utils import bounding_box_center, bounding_box
-	""" Return two vectors representing the lowest and highest coordinates of 
-		a the bounding box of the passed points.
-	"""
-
-	lowest = points[0].copy()
-	highest = points[0].copy()
-	for p in points:
-		for i in range(len(p)):
-			if p[i] < lowest[i]:
-				lowest[i] = p[i]
-			if p[i] > highest[i]:
-				highest[i] = p[i]
-
-	return lowest, highest
-
-def bounding_box_center(points) -> Vector:
-	"""Find the bounding box center of some points."""
-	bbox_low, bbox_high = bounding_box(points)
-	return bbox_low + (bbox_high-bbox_low)/2
-
 
 class CAMLAT_UL_lattice_slots(bpy.types.UIList):
 	def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
@@ -102,6 +81,26 @@ class LatticeSlot(bpy.types.PropertyGroup):
 	)
 
 
+class CAMLAT_OT_Add(bpy.types.Operator):
+	"""Add a Camera Lattice Slot"""
+	bl_idname = "lattice.add_slot"
+	bl_label = "Add Lattice Slot"
+	bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}
+
+	def execute(self, context):
+		scene = context.scene
+		lattice_slots = scene.lattice_slots
+		active_index = scene.active_lattice_index
+		to_index = active_index + 1
+		if len(lattice_slots)==0:
+			to_index = 0
+
+		scene.lattice_slots.add()
+		scene.lattice_slots.move(len(scene.lattice_slots)-1, to_index)
+		scene.active_lattice_index = to_index
+
+		return { 'FINISHED' }
+
 class CAMLAT_OT_Remove(bpy.types.Operator):
 	"""Remove Lattice Slot along with its Lattice object, animation and modifiers"""
 	bl_idname = "lattice.remove_slot"
@@ -132,26 +131,6 @@ class CAMLAT_OT_Remove(bpy.types.Operator):
 
 		return { 'FINISHED' }
 
-class CAMLAT_OT_Add(bpy.types.Operator):
-	"""Add a Camera Lattice Slot"""
-	bl_idname = "lattice.add_slot"
-	bl_label = "Add Lattice Slot"
-	bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}
-
-	def execute(self, context):
-		scene = context.scene
-		lattice_slots = scene.lattice_slots
-		active_index = scene.active_lattice_index
-		to_index = active_index + 1
-		if len(lattice_slots)==0:
-			to_index = 0
-
-		scene.lattice_slots.add()
-		scene.lattice_slots.move(len(scene.lattice_slots)-1, to_index)
-		scene.active_lattice_index = to_index
-
-		return { 'FINISHED' }
-
 class CAMLAT_OT_Move(bpy.types.Operator):
 	"""Move Lattice Slot"""
 	bl_idname = "lattice.move_slot"
@@ -364,41 +343,6 @@ class CAMLAT_OT_Delete(bpy.types.Operator):
 
 		return { 'FINISHED' }
 
-class ShapeKey_OT_Reset(bpy.types.Operator):
-	"""Reset shape of the active shape key of the active object"""
-	bl_idname = "object.reset_shape_key"
-	bl_label = "Reset Shape Key"
-	bl_options = {'REGISTER', 'UNDO'}
-
-	@classmethod
-	def poll(cls, context):
-		ob = context.object
-		if not ob:
-			return False
-		if not ob.data.shape_keys: 
-			return False
-		if len(ob.data.shape_keys.key_blocks)<2: 
-			return False
-		if ob.active_shape_key_index==0: 
-			return False
-
-		return True
-
-	def execute(self, context):
-		ob = context.object
-
-		active_index = ob.active_shape_key_index
-		key_blocks = ob.data.shape_keys.key_blocks
-		active_block = key_blocks[active_index]
-		basis_block = key_blocks[0]
-		for i, skp in enumerate(active_block.data):
-			skp.co = basis_block.data[i].co
-
-		return { 'FINISHED' }
-
-def draw_shape_key_reset(self, context):
-	self.layout.operator(ShapeKey_OT_Reset.bl_idname, text="Reset Shape Key", icon='FILE_REFRESH')
-
 class CAMLAT_OT_ShapeKey_Add(bpy.types.Operator):
 	"""Add a shape key to the active Lattice Slot's lattice, named after the current frame number"""
 
@@ -422,11 +366,12 @@ class CAMLAT_OT_ShapeKey_Add(bpy.types.Operator):
 
 		return {'FINISHED'}
 
-class CAMLAT_PT_main(bpy.types.Panel):
+
+class CAMLAT_PT_Main(bpy.types.Panel):
 	bl_space_type = 'VIEW_3D'
 	bl_region_type = 'UI'
 	bl_category = 'Lattice Magic'
-	bl_label = "Camera Lattice Slots"
+	bl_label = "Camera Lattice"
 
 	@classmethod
 	def poll(cls, context):
@@ -523,15 +468,16 @@ class CAMLAT_PT_main(bpy.types.Panel):
 classes = [
 	LatticeSlot
 	,CAMLAT_UL_lattice_slots
-	,CAMLAT_PT_main
 
-	,CAMLAT_OT_Remove
 	,CAMLAT_OT_Add
+	,CAMLAT_OT_Remove
 	,CAMLAT_OT_Move
+
 	,CAMLAT_OT_Generate
 	,CAMLAT_OT_Delete
-	,ShapeKey_OT_Reset
 	,CAMLAT_OT_ShapeKey_Add
+
+	,CAMLAT_PT_Main
 ]
 
 def register():
@@ -541,7 +487,6 @@ def register():
 
 	bpy.types.Scene.lattice_slots = CollectionProperty(type=LatticeSlot)
 	bpy.types.Scene.active_lattice_index = IntProperty()
-	bpy.types.MESH_MT_shape_key_context_menu.append(draw_shape_key_reset)
 
 def unregister():
 	from bpy.utils import unregister_class
@@ -550,4 +495,3 @@ def unregister():
 	
 	del bpy.types.Scene.lattice_slots
 	del bpy.types.Scene.active_lattice_index
-	bpy.types.MESH_MT_shape_key_context_menu.remove(draw_shape_key_reset)

operators.py

@@ -0,0 +1,113 @@
+import bpy
+from bpy.props import FloatProperty
+from .utils import get_lattice_point_original_position
+
+class LATTICE_OT_Reset(bpy.types.Operator):
+	"""Reset selected lattice points to their default position."""
+	bl_idname = "lattice.reset_points"
+	bl_label = "Reset Lattice Points"
+	bl_options = {'REGISTER', 'UNDO'}
+	
+	factor: FloatProperty(name="Factor", min=0, max=1, default=1)
+
+	@classmethod
+	def poll(cls, context):
+		return len(context.selected_objects)>0 and context.mode=='EDIT_LATTICE'
+	
+	def draw(self, context):
+		layout = self.layout
+		layout.use_property_split = True
+		layout.prop(self, 'factor', slider=True)
+
+	def execute(self, context):
+		bpy.ops.object.mode_set(mode='OBJECT')
+		for ob in context.selected_objects:
+			if ob.type!='LATTICE': 
+				continue
+			
+			# Resetting shape key or Basis shape
+			if ob.data.shape_keys:
+				active_index = ob.active_shape_key_index
+				key_blocks = ob.data.shape_keys.key_blocks
+				active_block = key_blocks[active_index]
+				basis_block = key_blocks[0]
+				if active_index > 0:
+					for i, skp in enumerate(active_block.data):
+						point = ob.data.points[i]
+						if not point.select: continue
+						mix = skp.co.lerp(basis_block.data[i].co, self.factor)
+						skp.co = mix
+					continue
+				else:
+					for i, skp in enumerate(active_block.data):
+						base = get_lattice_point_original_position(ob.data, i)
+						# Resetting the Basis shape
+						mix = basis_block.data[i].co.lerp(base, self.factor)
+						basis_block.data[i].co = mix
+				continue
+
+			# Otherwise, reset the actual points.
+			for i in range(len(ob.data.points)):
+				point = ob.data.points[i]
+				if not point.select: 
+					continue
+				base = get_lattice_point_original_position(ob.data, i)
+				mix = point.co_deform.lerp(base, self.factor)
+				point.co_deform = base
+
+		bpy.ops.object.mode_set(mode='EDIT')
+		return {'FINISHED'}
+
+class ShapeKey_OT_Reset(bpy.types.Operator):
+	"""Reset shape of the active shape key of the active object"""
+	bl_idname = "object.reset_shape_key"
+	bl_label = "Reset Shape Key"
+	bl_options = {'REGISTER', 'UNDO'}
+
+	@classmethod
+	def poll(cls, context):
+		ob = context.object
+		if not ob:
+			return False
+		if not ob.data.shape_keys: 
+			return False
+		if len(ob.data.shape_keys.key_blocks)<2: 
+			return False
+		if ob.active_shape_key_index==0: 
+			return False
+
+		return True
+
+	def execute(self, context):
+		ob = context.object
+
+		active_index = ob.active_shape_key_index
+		key_blocks = ob.data.shape_keys.key_blocks
+		active_block = key_blocks[active_index]
+		basis_block = key_blocks[0]
+		for i, skp in enumerate(active_block.data):
+			skp.co = basis_block.data[i].co
+
+		return { 'FINISHED' }
+
+def draw_shape_key_reset(self, context):
+	self.layout.operator(ShapeKey_OT_Reset.bl_idname, text="Reset Shape Key", icon='FILE_REFRESH')
+
+
+classes = [
+	ShapeKey_OT_Reset
+    ,LATTICE_OT_Reset
+]
+
+def register():
+	from bpy.utils import register_class
+	for c in classes:
+		register_class(c)
+	bpy.types.MESH_MT_shape_key_context_menu.append(draw_shape_key_reset)
+
+def unregister():
+	from bpy.utils import unregister_class
+	for c in reversed(classes):
+		unregister_class(c)
+
+	bpy.types.MESH_MT_shape_key_context_menu.remove(draw_shape_key_reset)

tweak_lattice.py

@@ -21,79 +21,10 @@ from typing import List
 from mathutils import Vector
 from rna_prop_ui import rna_idprop_ui_create
 
+from .utils import clamp, get_lattice_vertex_index, simple_driver
+
 coll_name = 'Tweak Lattices'
 
-def clamp(val, _min=0, _max=1) -> float or int:
-	if val < _min:
-		return _min
-	if val > _max:
-		return _max
-	return val
-
-def get_lattice_vertex_index(lattice: bpy.types.Lattice, xyz: List[int], do_clamp=True) -> int:
-	"""Get the index of a lattice vertex based on its position on the XYZ axes."""
-
-	# The lattice vertex indicies start in the -Y, -X, -Z corner, 
-	# increase on X+, then moves to the next row on Y+, then moves up on Z+.
-	res_x, res_y, res_z = lattice.points_u, lattice.points_v, lattice.points_w
-	x, y, z = xyz[:]
-	if do_clamp:
-		x = clamp(x, 0, res_x)
-		y = clamp(y, 0, res_y)
-		z = clamp(z, 0, res_z)
-
-	assert x < res_x and y < res_y and z < res_z, "Error: Lattice vertex xyz index out of bounds"
-
-	index = (z * res_y*res_x) + (y * res_x) + x
-	return index
-
-def get_lattice_vertex_xyz_position(lattice: bpy.types.Lattice, index: int) -> (int, int, int):
-	res_x, res_y, res_z = lattice.points_u, lattice.points_v, lattice.points_w
-
-	x = 0
-	remaining = index
-	z = int(remaining / (res_x*res_y))
-	remaining -= z*(res_x*res_y)
-	y = int(remaining / res_x)
-	remaining -= y*res_x
-	x = remaining # Maybe need to add or subtract 1 here?
-
-	return (x, y, z)
-
-def get_lattice_point_original_position(lattice: bpy.types.Lattice, index: int) -> Vector:
-	"""Reset a lattice vertex to its original position."""
-	start_vec = Vector((-0.5, -0.5, -0.5))
-	if lattice.points_u == 1:
-		start_vec[0] = 0
-	if lattice.points_v == 1:
-		start_vec[1] = 0
-	if lattice.points_w == 1:
-		start_vec[2] = 0
-
-	unit_u = 1/(lattice.points_u-1)
-	unit_v = 1/(lattice.points_v-1)
-	unit_w = 1/(lattice.points_w-1)
-
-	unit_vec = Vector((unit_u, unit_v, unit_w))
-	xyz_vec = Vector(get_lattice_vertex_xyz_position(lattice, index))
-
-	return start_vec + xyz_vec*unit_vec
-
-def simple_driver(owner: bpy.types.ID, driver_path: str, target_ob: bpy.types.Object, data_path: str, array_index=-1) -> bpy.types.Driver:
-	if array_index > -1:
-		owner.driver_remove(driver_path, array_index)
-		driver = owner.driver_add(driver_path, array_index).driver
-	else:
-		owner.driver_remove(driver_path)
-		driver = owner.driver_add(driver_path).driver
-	
-	driver.expression = 'var'
-	var = driver.variables.new()
-	var.targets[0].id = target_ob
-	var.targets[0].data_path = data_path
-
-	return driver
-
 def ensure_tweak_lattice_collection(scene):
 	coll = bpy.data.collections.get(coll_name)
 	if not coll:
@@ -102,62 +33,6 @@ def ensure_tweak_lattice_collection(scene):
 
 	return coll
 
-class LATTICE_OT_Reset(bpy.types.Operator):
-	"""Reset selected lattice points to their default position."""
-	bl_idname = "lattice.reset_points"
-	bl_label = "Reset Lattice Points"
-	bl_options = {'REGISTER', 'UNDO'}
-	
-	factor: FloatProperty(name="Factor", min=0, max=1, default=1)
-
-	@classmethod
-	def poll(cls, context):
-		return len(context.selected_objects)>0 and context.mode=='EDIT_LATTICE'
-	
-	def draw(self, context):
-		layout = self.layout
-		layout.use_property_split = True
-		layout.prop(self, 'factor', slider=True)
-
-	def execute(self, context):
-		bpy.ops.object.mode_set(mode='OBJECT')
-		for ob in context.selected_objects:
-			if ob.type!='LATTICE': 
-				continue
-			
-			# Resetting shape key or Basis shape
-			if ob.data.shape_keys:
-				active_index = ob.active_shape_key_index
-				key_blocks = ob.data.shape_keys.key_blocks
-				active_block = key_blocks[active_index]
-				basis_block = key_blocks[0]
-				if active_index > 0:
-					for i, skp in enumerate(active_block.data):
-						point = ob.data.points[i]
-						if not point.select: continue
-						mix = skp.co.lerp(basis_block.data[i].co, self.factor)
-						skp.co = mix
-					continue
-				else:
-					for i, skp in enumerate(active_block.data):
-						base = get_lattice_point_original_position(ob.data, i)
-						# Resetting the Basis shape
-						mix = basis_block.data[i].co.lerp(base, self.factor)
-						basis_block.data[i].co = mix
-				continue
-
-			# Otherwise, reset the actual points.
-			for i in range(len(ob.data.points)):
-				point = ob.data.points[i]
-				if not point.select: 
-					continue
-				base = get_lattice_point_original_position(ob.data, i)
-				mix = point.co_deform.lerp(base, self.factor)
-				point.co_deform = base
-
-		bpy.ops.object.mode_set(mode='EDIT')
-		return {'FINISHED'}
-
 class TWEAKLAT_OT_Create(bpy.types.Operator):
 	"""Create a lattice setup at the 3D cursor to deform selected objects."""
 	bl_idname = "lattice.create_tweak_lattice"
@@ -330,7 +205,7 @@ class TWEAKLAT_OT_Delete(bpy.types.Operator):
 
 		return {'FINISHED'}
 
-class TWEAKLAT_PT_main(bpy.types.Panel):
+class TWEAKLAT_PT_Main(bpy.types.Panel):
 	bl_space_type = 'VIEW_3D'
 	bl_region_type = 'UI'
 	bl_category = 'Lattice Magic'
@@ -377,10 +252,9 @@ class TWEAKLAT_PT_main(bpy.types.Panel):
 			ob_prop_name = "object_"+str(ob_count)
 
 classes = [
-	LATTICE_OT_Reset
+	TWEAKLAT_OT_Create
-	,TWEAKLAT_OT_Create
 	,TWEAKLAT_OT_Delete
-	,TWEAKLAT_PT_main
+	,TWEAKLAT_PT_Main
 ]
 
 def register():
@@ -388,11 +262,7 @@ def register():
 	for c in classes:
 		register_class(c)
 
-	# bpy.types.MESH_MT_shape_key_context_menu.append(draw_shape_key_reset)
-
 def unregister():
 	from bpy.utils import unregister_class
 	for c in reversed(classes):
 		unregister_class(c)
-	
-	# bpy.types.MESH_MT_shape_key_context_menu.remove(draw_shape_key_reset)

utils.py

@@ -0,0 +1,96 @@
+import bpy
+from mathutils import Vector
+from typing import List, Tuple
+
+def clamp(val, _min=0, _max=1) -> float or int:
+	if val < _min:
+		return _min
+	if val > _max:
+		return _max
+	return val
+
+def get_lattice_vertex_index(lattice: bpy.types.Lattice, xyz: List[int], do_clamp=True) -> int:
+	"""Get the index of a lattice vertex based on its position on the XYZ axes."""
+
+	# The lattice vertex indicies start in the -Y, -X, -Z corner, 
+	# increase on X+, then moves to the next row on Y+, then moves up on Z+.
+	res_x, res_y, res_z = lattice.points_u, lattice.points_v, lattice.points_w
+	x, y, z = xyz[:]
+	if do_clamp:
+		x = clamp(x, 0, res_x)
+		y = clamp(y, 0, res_y)
+		z = clamp(z, 0, res_z)
+
+	assert x < res_x and y < res_y and z < res_z, "Error: Lattice vertex xyz index out of bounds"
+
+	index = (z * res_y*res_x) + (y * res_x) + x
+	return index
+
+def get_lattice_vertex_xyz_position(lattice: bpy.types.Lattice, index: int) -> (int, int, int):
+	res_x, res_y, res_z = lattice.points_u, lattice.points_v, lattice.points_w
+
+	x = 0
+	remaining = index
+	z = int(remaining / (res_x*res_y))
+	remaining -= z*(res_x*res_y)
+	y = int(remaining / res_x)
+	remaining -= y*res_x
+	x = remaining # Maybe need to add or subtract 1 here?
+
+	return (x, y, z)
+
+def get_lattice_point_original_position(lattice: bpy.types.Lattice, index: int) -> Vector:
+	"""Reset a lattice vertex to its original position."""
+	start_vec = Vector((-0.5, -0.5, -0.5))
+	if lattice.points_u == 1:
+		start_vec[0] = 0
+	if lattice.points_v == 1:
+		start_vec[1] = 0
+	if lattice.points_w == 1:
+		start_vec[2] = 0
+
+	unit_u = 1/(lattice.points_u-1)
+	unit_v = 1/(lattice.points_v-1)
+	unit_w = 1/(lattice.points_w-1)
+
+	unit_vec = Vector((unit_u, unit_v, unit_w))
+	xyz_vec = Vector(get_lattice_vertex_xyz_position(lattice, index))
+
+	return start_vec + xyz_vec*unit_vec
+
+def simple_driver(owner: bpy.types.ID, driver_path: str, target_ob: bpy.types.Object, data_path: str, array_index=-1) -> bpy.types.Driver:
+	if array_index > -1:
+		owner.driver_remove(driver_path, array_index)
+		driver = owner.driver_add(driver_path, array_index).driver
+	else:
+		owner.driver_remove(driver_path)
+		driver = owner.driver_add(driver_path).driver
+	
+	driver.expression = 'var'
+	var = driver.variables.new()
+	var.targets[0].id = target_ob
+	var.targets[0].data_path = data_path
+
+	return driver
+
+
+def bounding_box(points) -> Tuple[Vector, Vector]:
+	""" Return two vectors representing the lowest and highest coordinates of 
+		a the bounding box of the passed points.
+	"""
+
+	lowest = points[0].copy()
+	highest = points[0].copy()
+	for p in points:
+		for i in range(len(p)):
+			if p[i] < lowest[i]:
+				lowest[i] = p[i]
+			if p[i] > highest[i]:
+				highest[i] = p[i]
+
+	return lowest, highest
+
+def bounding_box_center(points) -> Vector:
+	"""Find the bounding box center of some points."""
+	bbox_low, bbox_high = bounding_box(points)
+	return bbox_low + (bbox_high-bbox_low)/2