251 lines
11 KiB
Python
251 lines
11 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
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# * Copyright (c) 2009, 2010 Ken Cline <cline@frii.com> *
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# * Copyright (c) 2020 FreeCAD Developers *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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"""This module provides the object code for Draft Wire.
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"""
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## @package wire
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# \ingroup DRAFT
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# \brief This module provides the object code for Draft Wire.
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import math
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import FreeCAD as App
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import DraftGeomUtils
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import DraftVecUtils
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from PySide.QtCore import QT_TRANSLATE_NOOP
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from draftutils.utils import get_param
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from draftobjects.base import DraftObject
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class Wire(DraftObject):
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"""The Wire object"""
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def __init__(self, obj):
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super(Wire, self).__init__(obj, "Wire")
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_tip = "The vertices of the wire"
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obj.addProperty("App::PropertyVectorList","Points",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "If the wire is closed or not"
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obj.addProperty("App::PropertyBool","Closed",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The base object is the wire, it's formed from 2 objects"
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obj.addProperty("App::PropertyLink","Base",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The tool object is the wire, it's formed from 2 objects"
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obj.addProperty("App::PropertyLink","Tool",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The start point of this line"
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obj.addProperty("App::PropertyVectorDistance","Start",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The end point of this line"
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obj.addProperty("App::PropertyVectorDistance","End",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The length of this line"
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obj.addProperty("App::PropertyLength","Length",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "Radius to use to fillet the corners"
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obj.addProperty("App::PropertyLength","FilletRadius",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "Size of the chamfer to give to the corners"
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obj.addProperty("App::PropertyLength","ChamferSize",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "Create a face if this object is closed"
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obj.addProperty("App::PropertyBool","MakeFace",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The number of subdivisions of each edge"
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obj.addProperty("App::PropertyInteger","Subdivisions",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "The area of this object"
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obj.addProperty("App::PropertyArea","Area",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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obj.MakeFace = get_param("fillmode",True)
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obj.Closed = False
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def execute(self, obj):
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import Part
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plm = obj.Placement
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if obj.Base and (not obj.Tool):
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if obj.Base.isDerivedFrom("Sketcher::SketchObject"):
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shape = obj.Base.Shape.copy()
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if obj.Base.Shape.isClosed():
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if hasattr(obj,"MakeFace"):
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if obj.MakeFace:
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shape = Part.Face(shape)
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else:
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shape = Part.Face(shape)
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obj.Shape = shape
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elif obj.Base and obj.Tool:
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if hasattr(obj.Base,'Shape') and hasattr(obj.Tool,'Shape'):
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if (not obj.Base.Shape.isNull()) and (not obj.Tool.Shape.isNull()):
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sh1 = obj.Base.Shape.copy()
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sh2 = obj.Tool.Shape.copy()
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shape = sh1.fuse(sh2)
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if DraftGeomUtils.isCoplanar(shape.Faces):
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shape = DraftGeomUtils.concatenate(shape)
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obj.Shape = shape
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p = []
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for v in shape.Vertexes: p.append(v.Point)
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if obj.Points != p: obj.Points = p
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elif obj.Points:
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if obj.Points[0] == obj.Points[-1]:
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if not obj.Closed: obj.Closed = True
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obj.Points.pop()
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if obj.Closed and (len(obj.Points) > 2):
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pts = obj.Points
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if hasattr(obj,"Subdivisions"):
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if obj.Subdivisions > 0:
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npts = []
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for i in range(len(pts)):
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p1 = pts[i]
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npts.append(pts[i])
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if i == len(pts)-1:
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p2 = pts[0]
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else:
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p2 = pts[i+1]
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v = p2.sub(p1)
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v = DraftVecUtils.scaleTo(v,v.Length/(obj.Subdivisions+1))
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for j in range(obj.Subdivisions):
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npts.append(p1.add(App.Vector(v).multiply(j+1)))
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pts = npts
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shape = Part.makePolygon(pts+[pts[0]])
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if "ChamferSize" in obj.PropertiesList:
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if obj.ChamferSize.Value != 0:
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w = DraftGeomUtils.filletWire(shape,obj.ChamferSize.Value,chamfer=True)
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if w:
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shape = w
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if "FilletRadius" in obj.PropertiesList:
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if obj.FilletRadius.Value != 0:
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w = DraftGeomUtils.filletWire(shape,obj.FilletRadius.Value)
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if w:
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shape = w
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try:
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if hasattr(obj,"MakeFace"):
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if obj.MakeFace:
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shape = Part.Face(shape)
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else:
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shape = Part.Face(shape)
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except Part.OCCError:
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pass
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else:
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edges = []
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pts = obj.Points[1:]
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lp = obj.Points[0]
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for p in pts:
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if not DraftVecUtils.equals(lp,p):
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if hasattr(obj,"Subdivisions"):
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if obj.Subdivisions > 0:
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npts = []
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v = p.sub(lp)
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v = DraftVecUtils.scaleTo(v,v.Length/(obj.Subdivisions+1))
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edges.append(Part.LineSegment(lp,lp.add(v)).toShape())
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lv = lp.add(v)
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for j in range(obj.Subdivisions):
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edges.append(Part.LineSegment(lv,lv.add(v)).toShape())
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lv = lv.add(v)
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else:
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edges.append(Part.LineSegment(lp,p).toShape())
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else:
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edges.append(Part.LineSegment(lp,p).toShape())
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lp = p
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try:
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shape = Part.Wire(edges)
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except Part.OCCError:
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print("Error wiring edges")
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shape = None
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if "ChamferSize" in obj.PropertiesList:
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if obj.ChamferSize.Value != 0:
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w = DraftGeomUtils.filletWire(shape,obj.ChamferSize.Value,chamfer=True)
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if w:
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shape = w
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if "FilletRadius" in obj.PropertiesList:
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if obj.FilletRadius.Value != 0:
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w = DraftGeomUtils.filletWire(shape,obj.FilletRadius.Value)
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if w:
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shape = w
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if shape:
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obj.Shape = shape
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if hasattr(obj,"Area") and hasattr(shape,"Area"):
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obj.Area = shape.Area
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if hasattr(obj,"Length"):
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obj.Length = shape.Length
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obj.Placement = plm
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obj.positionBySupport()
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self.onChanged(obj,"Placement")
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def onChanged(self, obj, prop):
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if prop == "Start":
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pts = obj.Points
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invpl = App.Placement(obj.Placement).inverse()
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realfpstart = invpl.multVec(obj.Start)
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if pts:
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if pts[0] != realfpstart:
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pts[0] = realfpstart
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obj.Points = pts
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elif prop == "End":
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pts = obj.Points
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invpl = App.Placement(obj.Placement).inverse()
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realfpend = invpl.multVec(obj.End)
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if len(pts) > 1:
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if pts[-1] != realfpend:
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pts[-1] = realfpend
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obj.Points = pts
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elif prop == "Length":
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if obj.Shape and not obj.Shape.isNull():
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if obj.Length.Value != obj.Shape.Length:
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if len(obj.Points) == 2:
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v = obj.Points[-1].sub(obj.Points[0])
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v = DraftVecUtils.scaleTo(v,obj.Length.Value)
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obj.Points = [obj.Points[0],obj.Points[0].add(v)]
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elif prop == "Placement":
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pl = App.Placement(obj.Placement)
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if len(obj.Points) >= 2:
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displayfpstart = pl.multVec(obj.Points[0])
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displayfpend = pl.multVec(obj.Points[-1])
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if obj.Start != displayfpstart:
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obj.Start = displayfpstart
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if obj.End != displayfpend:
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obj.End = displayfpend
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_Wire = Wire |