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# ***************************************************************************
# * Copyright (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
# * Copyright (c) 2009, 2010 Ken Cline <cline@frii.com> *
# * Copyright (c) 2020 FreeCAD Developers *
# * Copyright (c) 2024 The FreeCAD Project Association *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * 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 Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
"""Provides functions to rotate shapes around a center and axis."""
## @package rotate
# \ingroup draftfunctions
# \brief Provides functions to rotate shapes around a center and axis.
## \addtogroup draftfunctions
# @{
import math
import FreeCAD as App
import DraftVecUtils
from draftfunctions import join
from draftmake import make_copy
from draftmake import make_line
from draftobjects import layer
from draftutils import groups
from draftutils import gui_utils
from draftutils import params
from draftutils import utils
def rotate(
selection,
angle,
center=App.Vector(0, 0, 0),
axis=App.Vector(0, 0, 1),
copy=False,
subelements=False,
):
"""rotate(selection, angle, [center], [axis], [copy], [subelements])
Rotates or copies selected objects.
Parameters
----------
selection: single object / list of objects / selection set
When dealing with nested objects, use `Gui.Selection.getSelectionEx("", 0)`
to create the selection set.
angle: float / integer
Rotation angle (in degrees).
center: App.Vector, optional
Defaults to `App.Vector(0, 0, 0)`.
Rotation center.
axis: App.Vector, optional
Defaults to `App.Vector(0, 0, 1)`.
Rotation axis.
copy: bool, optional
Defaults to `False`.
If `True` the selected objects are not rotated, but rotated copies are
created instead.
subelements: bool, optional
Defaults to `False`.
If `True` subelements instead of whole objects are processed.
Only used if selection is a selection set.
Returns
-------
single object / list with 2 or more objects / empty list
The objects (or their copies).
"""
utils.type_check(
[
(angle, (float, int)),
(center, App.Vector),
(axis, App.Vector),
(copy, bool),
(subelements, bool),
],
"rotate",
)
if not isinstance(selection, list):
selection = [selection]
if not selection:
return None
if selection[0].isDerivedFrom("Gui::SelectionObject"):
if subelements:
return _rotate_subelements(selection, angle, center, axis, copy)
else:
objs, parent_places, sel_info = utils._modifiers_process_selection(selection, copy)
else:
objs = utils._modifiers_filter_objects(utils._modifiers_get_group_contents(selection), copy)
parent_places = None
sel_info = None
if not objs:
return None
newobjs = []
newgroups = {}
if copy:
for obj in objs:
if obj.isDerivedFrom("App::DocumentObjectGroup") and obj.Name not in newgroups:
newgroups[obj.Name] = obj.Document.addObject(
obj.TypeId, utils.get_real_name(obj.Name)
)
for idx, obj in enumerate(objs):
newobj = None
if parent_places is not None:
parent_place = parent_places[idx]
elif hasattr(obj, "getGlobalPlacement"):
parent_place = obj.getGlobalPlacement() * obj.Placement.inverse()
else:
parent_place = App.Placement()
if copy or parent_place.isIdentity():
real_center = center
real_axis = axis
else:
real_center = parent_place.inverse().multVec(center)
real_axis = parent_place.inverse().Rotation.multVec(axis)
if obj.isDerivedFrom("App::DocumentObjectGroup"):
if copy:
newobj = newgroups[obj.Name]
else:
newobj = obj
elif hasattr(obj, "Placement"):
if copy:
newobj = make_copy.make_copy(obj)
if not parent_place.isIdentity():
newobj.Placement = parent_place * newobj.Placement
else:
newobj = obj
newobj.Placement.rotate(real_center, real_axis, angle, comp=True)
elif obj.isDerivedFrom("App::Annotation"):
if copy:
newobj = make_copy.make_copy(obj)
if not parent_place.isIdentity():
newobj.Position = parent_place.multVec(newobj.Position)
else:
newobj = obj
newobj.Position = rotate_vector_from_center(newobj.Position, angle, axis, center)
elif utils.get_type(obj) in ("Dimension", "LinearDimension", "AngularDimension"):
# "Dimension" was the type for linear dimensions <= v0.18.
if copy:
newobj = make_copy.make_copy(obj)
if not parent_place.isIdentity():
newobj.Proxy.transform(newobj, parent_place)
else:
newobj = obj
pla = App.Placement()
pla.rotate(real_center, real_axis, angle, comp=True)
newobj.Proxy.transform(newobj, pla)
if newobj is not None:
newobjs.append(newobj)
if copy:
lyr = layer.get_layer(obj)
if lyr is not None:
lyr.Proxy.addObject(lyr, newobj)
for parent in obj.InList:
if parent.isDerivedFrom("App::DocumentObjectGroup") and (parent in objs):
newgroups[parent.Name].addObject(newobj)
if not copy or params.get_param("selectBaseObjects"):
if sel_info is not None:
gui_utils.select(sel_info)
else:
gui_utils.select(objs)
else:
gui_utils.select(newobjs)
if len(newobjs) == 1:
return newobjs[0]
return newobjs
def _rotate_subelements(selection, angle, center, axis, copy):
data_list, sel_info = utils._modifiers_process_subselection(selection, copy)
newobjs = []
if copy:
for obj, vert_idx, edge_idx, global_place in data_list:
if edge_idx >= 0:
newobjs.append(copy_rotated_edge(obj, edge_idx, angle, center, axis, global_place))
newobjs = join.join_wires(newobjs)
else:
for obj, vert_idx, edge_idx, global_place in data_list:
if vert_idx >= 0:
rotate_vertex(obj, vert_idx, angle, center, axis, global_place)
elif edge_idx >= 0:
rotate_edge(obj, edge_idx, angle, center, axis, global_place)
if not copy or params.get_param("selectBaseObjects"):
gui_utils.select(sel_info)
else:
gui_utils.select(newobjs)
if len(newobjs) == 1:
return newobjs[0]
return newobjs
def rotate_vector_from_center(vector, angle, axis, center):
"""
Needed for SubObjects modifiers.
Implemented by Dion Moult during 0.19 dev cycle (works only with Draft Wire).
"""
rv = vector.sub(center)
rv = DraftVecUtils.rotate(rv, math.radians(angle), axis)
return center.add(rv)
def rotate_vertex(obj, vert_idx, angle, center, axis, global_place=None):
"""
Needed for SubObjects modifiers.
Implemented by Dion Moult during 0.19 dev cycle (works only with Draft Wire).
"""
if global_place is None:
glp = obj.getGlobalPlacement()
else:
glp = global_place
points = obj.Points
points[vert_idx] = glp.inverse().multVec(
rotate_vector_from_center(glp.multVec(points[vert_idx]), angle, axis, center)
)
obj.Points = points
def rotate_edge(obj, edge_idx, angle, center, axis, global_place=None):
"""
Needed for SubObjects modifiers.
Implemented by Dion Moult during 0.19 dev cycle (works only with Draft Wire).
"""
rotate_vertex(obj, edge_idx, angle, center, axis, global_place)
if utils.is_closed_edge(edge_idx, obj):
rotate_vertex(obj, 0, angle, center, axis, global_place)
else:
rotate_vertex(obj, edge_idx + 1, angle, center, axis, global_place)
def copy_rotated_edge(obj, edge_idx, angle, center, axis, global_place=None):
"""
Needed for SubObjects modifiers.
Implemented by Dion Moult during 0.19 dev cycle (works only with Draft Wire).
"""
if global_place is None:
glp = obj.getGlobalPlacement()
else:
glp = global_place
vertex1 = rotate_vector_from_center(glp.multVec(obj.Points[edge_idx]), angle, axis, center)
if utils.is_closed_edge(edge_idx, obj):
vertex2 = rotate_vector_from_center(glp.multVec(obj.Points[0]), angle, axis, center)
else:
vertex2 = rotate_vector_from_center(
glp.multVec(obj.Points[edge_idx + 1]), angle, axis, center
)
newobj = make_line.make_line(vertex1, vertex2)
gui_utils.format_object(newobj, obj)
return newobj
## @}
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