42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2018 Michael Matthews
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#
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# This file is part of CutCraft.
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#
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# CutCraft is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# CutCraft 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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with CutCraft. If not, see <http://www.gnu.org/licenses/>.
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from math import floor
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class FingerJoint(object):
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def __init__(self, length, fingerwidth, style, thickness=0.0):
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super(FingerJoint, self).__init__()
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self.thickness = thickness
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if style in ('depth','height'):
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self.fingers = [0.0] + \
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[pos + fingerwidth*2.0 for pos in self._fingers(length-fingerwidth*4.0, fingerwidth)] + \
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[length]
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elif style=='width':
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self.fingers = [pos + thickness for pos in self._fingers(length-thickness*2.0, fingerwidth)]
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else:
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raise ValueError("cutcraft.core.fingerjoin: invalid value of '{}' for parameter 'style'.".format(style))
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return
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def _fingers(self, length, fingerwidth):
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count = int(floor(length / fingerwidth))
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count = count-1 if count%2==0 else count
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return [length/count*c for c in range(count+1)]
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