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985c397 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | # SPDX-License-Identifier: LGPL-2.1-or-later
# ***************************************************************************
# * 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 functions to join wires together into a single wire."""
## @package join
# \ingroup draftfunctions
# \brief Provides functions to join wires together into a single wire.
## \addtogroup draftfunctions
# @{
import FreeCAD as App
import DraftVecUtils
def join_wires(wires, joinAttempts=0):
"""join_wires(objects): merges a set of wires where possible, if any of those
wires have a coincident start and end point"""
wires = list(wires)
if joinAttempts > len(wires):
return
joinAttempts += 1
for wire1Index, wire1 in enumerate(wires):
for wire2Index, wire2 in enumerate(wires):
if wire2Index <= wire1Index:
continue
if join_two_wires(wire1, wire2):
wires.pop(wire2Index)
break
join_wires(wires, joinAttempts)
return wires
joinWires = join_wires
def join_two_wires(wire1, wire2):
"""join_two_wires(object, object): joins two wires if they share a common
point as a start or an end.
"""
wire1AbsPoints = [wire1.Placement.multVec(point) for point in wire1.Points]
wire2AbsPoints = [wire2.Placement.multVec(point) for point in wire2.Points]
if (
DraftVecUtils.equals(wire1AbsPoints[0], wire2AbsPoints[-1])
and DraftVecUtils.equals(wire1AbsPoints[-1], wire2AbsPoints[0])
) or (
DraftVecUtils.equals(wire1AbsPoints[0], wire2AbsPoints[0])
and DraftVecUtils.equals(wire1AbsPoints[-1], wire2AbsPoints[-1])
):
wire2AbsPoints.pop()
wire1.Closed = True
elif DraftVecUtils.equals(wire1AbsPoints[0], wire2AbsPoints[0]):
wire1AbsPoints = list(reversed(wire1AbsPoints))
elif DraftVecUtils.equals(wire1AbsPoints[0], wire2AbsPoints[-1]):
wire1AbsPoints = list(reversed(wire1AbsPoints))
wire2AbsPoints = list(reversed(wire2AbsPoints))
elif DraftVecUtils.equals(wire1AbsPoints[-1], wire2AbsPoints[-1]):
wire2AbsPoints = list(reversed(wire2AbsPoints))
elif DraftVecUtils.equals(wire1AbsPoints[-1], wire2AbsPoints[0]):
pass
else:
return False
wire2AbsPoints.pop(0)
wire1.Points = [wire1.Placement.inverse().multVec(point) for point in wire1AbsPoints] + [
wire1.Placement.inverse().multVec(point) for point in wire2AbsPoints
]
App.ActiveDocument.removeObject(wire2.Name)
return True
joinTwoWires = join_two_wires
## @}
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