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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 *
# * *
# * 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 the object code for the Wire (Polyline) object."""
## @package wire
# \ingroup draftobjects
# \brief Provides the object code for the Wire (Polyline) object.
## \addtogroup draftobjects
# @{
import math
from PySide.QtCore import QT_TRANSLATE_NOOP
import FreeCAD as App
import DraftGeomUtils
import DraftVecUtils
from draftobjects.base import DraftObject
from draftutils import gui_utils
from draftutils import params
from draftutils.messages import _log
class Wire(DraftObject):
"""The Wire object"""
def __init__(self, obj):
super().__init__(obj, "Wire")
_tip = QT_TRANSLATE_NOOP("App::Property", "The vertices of the wire")
obj.addProperty("App::PropertyVectorList", "Points", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "If the wire is closed or not")
obj.addProperty("App::PropertyBool", "Closed", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP(
"App::Property", "The base object is the wire, it's formed from 2 objects"
)
obj.addProperty("App::PropertyLink", "Base", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP(
"App::Property", "The tool object is the wire, it's formed from 2 objects"
)
obj.addProperty("App::PropertyLink", "Tool", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "The start point of this line")
obj.addProperty("App::PropertyVectorDistance", "Start", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "The end point of this line")
obj.addProperty("App::PropertyVectorDistance", "End", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "The length of this line")
obj.addProperty("App::PropertyLength", "Length", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "Radius to use to fillet the corners")
obj.addProperty("App::PropertyLength", "FilletRadius", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "Size of the chamfer to give to the corners")
obj.addProperty("App::PropertyLength", "ChamferSize", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "Create a face if this object is closed")
obj.addProperty("App::PropertyBool", "MakeFace", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "The number of subdivisions of each edge")
obj.addProperty("App::PropertyInteger", "Subdivisions", "Draft", _tip, locked=True)
_tip = QT_TRANSLATE_NOOP("App::Property", "The area of this object")
obj.addProperty("App::PropertyArea", "Area", "Draft", _tip, locked=True)
obj.MakeFace = params.get_param("MakeFaceMode")
obj.Closed = False
def onDocumentRestored(self, obj):
super().onDocumentRestored(obj)
gui_utils.restore_view_object(obj, vp_module="view_wire", vp_class="ViewProviderWire")
vobj = getattr(obj, "ViewObject", None)
if vobj is None:
return
if hasattr(vobj, "ArrowSize") or hasattr(vobj, "ArrowType") or hasattr(vobj, "EndArrow"):
self.update_properties_1v1(obj, vobj)
def update_properties_1v1(self, obj, vobj):
"""Update view properties."""
vobj.Proxy._set_properties(vobj)
if getattr(vobj, "EndArrow", False) and hasattr(vobj, "ArrowType"):
vobj.ArrowTypeEnd = vobj.ArrowType
if hasattr(vobj, "ArrowSize"):
vobj.ArrowSizeStart = vobj.ArrowSize
vobj.ArrowSizeEnd = vobj.ArrowSize
vobj.setPropertyStatus("ArrowSize", "-LockDynamic")
vobj.removeProperty("ArrowSize")
if hasattr(vobj, "ArrowType"):
vobj.setPropertyStatus("ArrowType", "-LockDynamic")
vobj.removeProperty("ArrowType")
if hasattr(vobj, "EndArrow"):
vobj.setPropertyStatus("EndArrow", "-LockDynamic")
vobj.removeProperty("EndArrow")
_log("v1.1, " + obj.Name + ", migrated view properties")
def execute(self, obj):
if self.props_changed_placement_only(
obj
): # Supplying obj is required because of `Base` and `Tool`.
obj.positionBySupport()
self.update_start_end(obj)
self.props_changed_clear()
return
import Part
plm = obj.Placement
if obj.Base and (not obj.Tool):
if obj.Base.isDerivedFrom("Sketcher::SketchObject"):
shape = obj.Base.Shape.copy()
if obj.Base.Shape.isClosed():
if getattr(obj, "MakeFace", True):
shape = Part.Face(shape)
obj.Shape = shape
elif obj.Base and obj.Tool:
if hasattr(obj.Base, "Shape") and hasattr(obj.Tool, "Shape"):
if (not obj.Base.Shape.isNull()) and (not obj.Tool.Shape.isNull()):
sh1 = obj.Base.Shape.copy()
sh2 = obj.Tool.Shape.copy()
shape = sh1.fuse(sh2)
if DraftGeomUtils.isCoplanar(shape.Faces):
shape = DraftGeomUtils.concatenate(shape)
obj.Shape = shape
p = []
for v in shape.Vertexes:
p.append(v.Point)
if obj.Points != p:
obj.Points = p
elif obj.Points:
if obj.Points[0] == obj.Points[-1]:
if not obj.Closed:
obj.Closed = True
obj.Points.pop()
if obj.Closed and (len(obj.Points) > 2):
pts = obj.Points
if getattr(obj, "Subdivisions", 0) > 0:
npts = []
for i in range(len(pts)):
p1 = pts[i]
npts.append(pts[i])
if i == len(pts) - 1:
p2 = pts[0]
else:
p2 = pts[i + 1]
v = p2.sub(p1)
v = DraftVecUtils.scaleTo(v, v.Length / (obj.Subdivisions + 1))
for j in range(obj.Subdivisions):
npts.append(p1.add(App.Vector(v).multiply(j + 1)))
pts = npts
shape = Part.makePolygon(pts + [pts[0]])
if "ChamferSize" in obj.PropertiesList:
if obj.ChamferSize.Value != 0:
w = DraftGeomUtils.filletWire(shape, obj.ChamferSize.Value, chamfer=True)
if w:
shape = w
if "FilletRadius" in obj.PropertiesList:
if obj.FilletRadius.Value != 0:
w = DraftGeomUtils.filletWire(shape, obj.FilletRadius.Value)
if w:
shape = w
try:
if getattr(obj, "MakeFace", True):
shape = Part.Face(shape)
except Part.OCCError:
pass
else:
edges = []
pts = obj.Points[1:]
lp = obj.Points[0]
for p in pts:
if not DraftVecUtils.equals(lp, p):
if getattr(obj, "Subdivisions", 0) > 0:
npts = []
v = p.sub(lp)
v = DraftVecUtils.scaleTo(v, v.Length / (obj.Subdivisions + 1))
edges.append(Part.LineSegment(lp, lp.add(v)).toShape())
lv = lp.add(v)
for j in range(obj.Subdivisions):
edges.append(Part.LineSegment(lv, lv.add(v)).toShape())
lv = lv.add(v)
else:
edges.append(Part.LineSegment(lp, p).toShape())
lp = p
try:
shape = Part.Wire(edges)
except Part.OCCError:
print("Error wiring edges")
shape = None
if "ChamferSize" in obj.PropertiesList:
if obj.ChamferSize.Value != 0:
w = DraftGeomUtils.filletWire(shape, obj.ChamferSize.Value, chamfer=True)
if w:
shape = w
if "FilletRadius" in obj.PropertiesList:
if obj.FilletRadius.Value != 0:
w = DraftGeomUtils.filletWire(shape, obj.FilletRadius.Value)
if w:
shape = w
if shape:
obj.Shape = shape
if hasattr(obj, "Area") and hasattr(shape, "Area"):
obj.Area = shape.Area
if hasattr(obj, "Length"):
obj.Length = shape.Length
obj.Placement = plm
obj.positionBySupport()
self.update_start_end(obj)
self.props_changed_clear()
def onChanged(self, obj, prop):
self.props_changed_store(prop)
tol = 1e-7
if prop == "Start":
pts = obj.Points
invpl = App.Placement(obj.Placement).inverse()
realfpstart = invpl.multVec(obj.Start)
if pts:
if not pts[0].isEqual(realfpstart, tol):
pts[0] = realfpstart
obj.Points = pts
elif prop == "End":
pts = obj.Points
invpl = App.Placement(obj.Placement).inverse()
realfpend = invpl.multVec(obj.End)
if len(pts) > 1:
if not pts[-1].isEqual(realfpend, tol):
pts[-1] = realfpend
obj.Points = pts
elif prop == "Length":
if len(obj.Points) == 2 and obj.Length.Value > tol:
vec = obj.Points[-1].sub(obj.Points[0])
if abs(obj.Length.Value - vec.Length) > tol:
vec = DraftVecUtils.scaleTo(vec, obj.Length.Value)
obj.Points = [obj.Points[0], obj.Points[0].add(vec)]
def update_start_end(self, obj):
tol = 1e-7
pl = App.Placement(obj.Placement)
if len(obj.Points) > 1:
displayfpstart = pl.multVec(obj.Points[0])
displayfpend = pl.multVec(obj.Points[-1])
if not obj.Start.isEqual(displayfpstart, tol):
obj.Start = displayfpstart
if not obj.End.isEqual(displayfpend, tol):
obj.End = displayfpend
# Alias for compatibility with v0.18 and earlier
_Wire = Wire
## @}
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