# *************************************************************************** # * Copyright (c) 2009, 2010 Yorik van Havre * # * Copyright (c) 2009, 2010 Ken Cline * # * 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 draftutils.utils import get_param from draftobjects.base import DraftObject class Wire(DraftObject): """The Wire object""" def __init__(self, obj): super(Wire, self).__init__(obj, "Wire") _tip = QT_TRANSLATE_NOOP("App::Property", "The vertices of the wire") obj.addProperty("App::PropertyVectorList","Points", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "If the wire is closed or not") obj.addProperty("App::PropertyBool","Closed", "Draft",_tip) _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) _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) _tip = QT_TRANSLATE_NOOP("App::Property", "The start point of this line") obj.addProperty("App::PropertyVectorDistance","Start", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "The end point of this line") obj.addProperty("App::PropertyVectorDistance","End", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "The length of this line") obj.addProperty("App::PropertyLength","Length", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "Radius to use to fillet the corners") obj.addProperty("App::PropertyLength","FilletRadius", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "Size of the chamfer to give to the corners") obj.addProperty("App::PropertyLength","ChamferSize", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "Create a face if this object is closed") obj.addProperty("App::PropertyBool","MakeFace", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "The number of subdivisions of each edge") obj.addProperty("App::PropertyInteger","Subdivisions", "Draft",_tip) _tip = QT_TRANSLATE_NOOP("App::Property", "The area of this object") obj.addProperty("App::PropertyArea","Area", "Draft",_tip) obj.MakeFace = get_param("fillmode",True) obj.Closed = False 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 and obj.Shape and (not obj.Shape.isNull()) and abs(obj.Length.Value - obj.Shape.Length) > tol): v = obj.Points[-1].sub(obj.Points[0]) v = DraftVecUtils.scaleTo(v, obj.Length.Value) obj.Points = [obj.Points[0], obj.Points[0].add(v)] 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 ## @}