Draft: split wire related tools from Draft.py
Line Polyline BezCurve BSpline . . .
This commit is contained in:
carlopav
committed by
Yorik van Havre
Yorik van Havre
parent
4eab0bb787
commit
f1eaa0b93c
196
src/Mod/Draft/draftobjects/bezcurve.py
Normal file
196
src/Mod/Draft/draftobjects/bezcurve.py
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@@ -0,0 +1,196 @@
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# ***************************************************************************
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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 *
|
||||
# * 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 *
|
||||
# * License along with this program; if not, write to the Free Software *
|
||||
# * 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 BezCurve.
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"""
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## @package bezcurve
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# \ingroup DRAFT
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# \brief This module provides the object code for Draft BezCurve.
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from PySide.QtCore import QT_TRANSLATE_NOOP
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import FreeCAD as App
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from draftutils.utils import get_param
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from draftobjects.base import DraftObject
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class BezCurve(DraftObject):
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"""The BezCurve object"""
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def __init__(self, obj):
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super(BezCurve, self).__init__(obj, "BezCurve")
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_tip = "The points of the Bezier curve"
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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 = "The degree of the Bezier function"
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obj.addProperty("App::PropertyInteger", "Degree",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "Continuity"
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obj.addProperty("App::PropertyIntegerList", "Continuity",
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"Draft",QT_TRANSLATE_NOOP("App::Property", _tip))
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_tip = "If the Bezier curve should be 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 = "Create a face if this curve 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 length of this object"
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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 = "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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obj.Degree = 3
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obj.Continuity = []
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#obj.setEditorMode("Degree",2)
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obj.setEditorMode("Continuity", 1)
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def execute(self, fp):
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self.createGeometry(fp)
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fp.positionBySupport()
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def _segpoleslst(self,fp):
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"""Split the points into segments."""
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if not fp.Closed and len(fp.Points) >= 2: #allow lower degree segment
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poles=fp.Points[1:]
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elif fp.Closed and len(fp.Points) >= fp.Degree: #drawable
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#poles=fp.Points[1:(fp.Degree*(len(fp.Points)//fp.Degree))]+fp.Points[0:1]
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poles=fp.Points[1:]+fp.Points[0:1]
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else:
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poles=[]
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return [poles[x:x+fp.Degree] for x in \
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range(0, len(poles), (fp.Degree or 1))]
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def resetcontinuity(self,fp):
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fp.Continuity = [0]*(len(self._segpoleslst(fp))-1+1*fp.Closed)
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#nump= len(fp.Points)-1+fp.Closed*1
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#numsegments = (nump // fp.Degree) + 1 * (nump % fp.Degree > 0) -1
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#fp.Continuity = [0]*numsegments
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def onChanged(self, fp, prop):
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if prop == 'Closed':
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# if remove the last entry when curve gets opened
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oldlen = len(fp.Continuity)
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newlen = (len(self._segpoleslst(fp))-1+1*fp.Closed)
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if oldlen > newlen:
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fp.Continuity = fp.Continuity[:newlen]
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if oldlen < newlen:
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fp.Continuity = fp.Continuity + [0]*(newlen-oldlen)
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if (hasattr(fp,'Closed') and
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fp.Closed and
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prop in ['Points','Degree','Closed'] and
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len(fp.Points) % fp.Degree):
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# the curve editing tools can't handle extra points
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fp.Points=fp.Points[:(fp.Degree*(len(fp.Points)//fp.Degree))]
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#for closed curves
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if prop in ["Degree"] and fp.Degree >= 1:
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self.resetcontinuity(fp)
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if prop in ["Points","Degree","Continuity","Closed"]:
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self.createGeometry(fp)
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def createGeometry(self,fp):
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import Part
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plm = fp.Placement
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if fp.Points:
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startpoint=fp.Points[0]
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edges = []
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for segpoles in self._segpoleslst(fp):
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# if len(segpoles) == fp.Degree # would skip additional poles
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c = Part.BezierCurve() #last segment may have lower degree
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c.increase(len(segpoles))
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c.setPoles([startpoint]+segpoles)
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edges.append(Part.Edge(c))
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startpoint = segpoles[-1]
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w = Part.Wire(edges)
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if fp.Closed and w.isClosed():
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try:
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if hasattr(fp,"MakeFace"):
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if fp.MakeFace:
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w = Part.Face(w)
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else:
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w = Part.Face(w)
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except Part.OCCError:
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pass
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fp.Shape = w
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if hasattr(fp,"Area") and hasattr(w,"Area"):
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fp.Area = w.Area
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if hasattr(fp,"Length") and hasattr(w,"Length"):
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fp.Length = w.Length
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fp.Placement = plm
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@classmethod
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def symmetricpoles(cls,knot, p1, p2):
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"""Make two poles symmetric respective to the knot."""
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p1h = App.Vector(p1)
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p2h = App.Vector(p2)
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p1h.multiply(0.5)
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p2h.multiply(0.5)
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return ( knot+p1h-p2h , knot+p2h-p1h )
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@classmethod
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def tangentpoles(cls,knot, p1, p2,allowsameside=False):
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"""Make two poles have the same tangent at knot."""
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p12n = p2.sub(p1)
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p12n.normalize()
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p1k = knot-p1
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p2k = knot-p2
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p1k_= App.Vector(p12n)
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kon12=(p1k * p12n)
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if allowsameside or not (kon12 < 0 or p2k * p12n > 0):# instead of moving
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p1k_.multiply(kon12)
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pk_k = knot - p1 - p1k_
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return (p1 + pk_k, p2 + pk_k)
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else:
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return cls.symmetricpoles(knot, p1, p2)
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@staticmethod
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def modifysymmetricpole(knot,p1):
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"""calculate the coordinates of the opposite pole
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of a symmetric knot"""
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return knot + knot - p1
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@staticmethod
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def modifytangentpole(knot,p1,oldp2):
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"""calculate the coordinates of the opposite pole
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of a tangent knot"""
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pn = knot - p1
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pn.normalize()
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pn.multiply((knot - oldp2).Length)
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return pn + knot
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_BezCurve = BezCurve
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136
src/Mod/Draft/draftobjects/bspline.py
Normal file
136
src/Mod/Draft/draftobjects/bspline.py
Normal file
@@ -0,0 +1,136 @@
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# ***************************************************************************
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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 *
|
||||
# * 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 *
|
||||
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||||
# * GNU Library General Public License for more details. *
|
||||
# * *
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||||
# * 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 *
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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 BSpline.
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"""
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## @package bspline
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# \ingroup DRAFT
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# \brief This module provides the object code for Draft BSpline.
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from PySide.QtCore import QT_TRANSLATE_NOOP
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import FreeCAD as App
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from draftutils.utils import get_param
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from draftobjects.base import DraftObject
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class BSpline(DraftObject):
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"""The BSpline object"""
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def __init__(self, obj):
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super(BSpline, self).__init__(obj, "BSpline")
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_tip = "The points of the B-spline"
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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 B-spline 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 = "Create a face if this spline 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 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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obj.Points = []
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self.assureProperties(obj)
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def assureProperties(self, obj): # for Compatibility with older versions
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if not hasattr(obj, "Parameterization"):
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obj.addProperty("App::PropertyFloat","Parameterization","Draft",QT_TRANSLATE_NOOP("App::Property","Parameterization factor"))
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obj.Parameterization = 1.0
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self.knotSeq = []
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def parameterization (self, pts, a, closed):
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"""Computes a knot Sequence for a set of points.
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fac (0-1) : parameterization factor
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fac = 0 -> Uniform / fac=0.5 -> Centripetal / fac=1.0 -> Chord-Length
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"""
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if closed: # we need to add the first point as the end point
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pts.append(pts[0])
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params = [0]
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for i in range(1,len(pts)):
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p = pts[i].sub(pts[i-1])
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pl = pow(p.Length,a)
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params.append(params[-1] + pl)
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return params
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def onChanged(self, fp, prop):
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if prop == "Parameterization":
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if fp.Parameterization < 0.:
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fp.Parameterization = 0.
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if fp.Parameterization > 1.0:
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fp.Parameterization = 1.0
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def execute(self, obj):
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import Part
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self.assureProperties(obj)
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if not obj.Points:
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obj.positionBySupport()
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self.knotSeq = self.parameterization(obj.Points, obj.Parameterization, obj.Closed)
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plm = obj.Placement
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if obj.Closed and (len(obj.Points) > 2):
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if obj.Points[0] == obj.Points[-1]: # should not occur, but OCC will crash
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_err = "_BSpline.createGeometry: \
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Closed with same first/last Point. Geometry not updated."
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App.Console.PrintError(QT_TRANSLATE_NOOP('Draft', _err)+"\n")
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return
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spline = Part.BSplineCurve()
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spline.interpolate(obj.Points, PeriodicFlag = True, Parameters = self.knotSeq)
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# DNC: bug fix: convert to face if closed
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shape = Part.Wire(spline.toShape())
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# Creating a face from a closed spline cannot be expected to always work
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# Usually, if the spline is not flat the call of Part.Face() fails
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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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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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else:
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spline = Part.BSplineCurve()
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spline.interpolate(obj.Points, PeriodicFlag = False, Parameters = self.knotSeq)
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shape = spline.toShape()
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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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obj.Placement = plm
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obj.positionBySupport()
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_BSpline = BSpline
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251
src/Mod/Draft/draftobjects/wire.py
Normal file
251
src/Mod/Draft/draftobjects/wire.py
Normal file
@@ -0,0 +1,251 @@
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# ***************************************************************************
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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 *
|
||||
# * *
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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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||||
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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):
|
||||
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 hasattr(obj,"MakeFace"):
|
||||
if obj.MakeFace:
|
||||
shape = Part.Face(shape)
|
||||
else:
|
||||
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 hasattr(obj,"Subdivisions"):
|
||||
if obj.Subdivisions > 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 hasattr(obj,"MakeFace"):
|
||||
if obj.MakeFace:
|
||||
shape = Part.Face(shape)
|
||||
else:
|
||||
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 hasattr(obj,"Subdivisions"):
|
||||
if obj.Subdivisions > 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())
|
||||
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.onChanged(obj,"Placement")
|
||||
|
||||
def onChanged(self, obj, prop):
|
||||
if prop == "Start":
|
||||
pts = obj.Points
|
||||
invpl = App.Placement(obj.Placement).inverse()
|
||||
realfpstart = invpl.multVec(obj.Start)
|
||||
if pts:
|
||||
if pts[0] != realfpstart:
|
||||
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 pts[-1] != realfpend:
|
||||
pts[-1] = realfpend
|
||||
obj.Points = pts
|
||||
|
||||
elif prop == "Length":
|
||||
if obj.Shape and not obj.Shape.isNull():
|
||||
if obj.Length.Value != obj.Shape.Length:
|
||||
if len(obj.Points) == 2:
|
||||
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)]
|
||||
|
||||
elif prop == "Placement":
|
||||
pl = App.Placement(obj.Placement)
|
||||
if len(obj.Points) >= 2:
|
||||
displayfpstart = pl.multVec(obj.Points[0])
|
||||
displayfpend = pl.multVec(obj.Points[-1])
|
||||
if obj.Start != displayfpstart:
|
||||
obj.Start = displayfpstart
|
||||
if obj.End != displayfpend:
|
||||
obj.End = displayfpend
|
||||
|
||||
|
||||
_Wire = Wire
|
||||
Reference in New Issue
Block a user