This repository has been archived on 2023-03-25. You can view files and clone it, but cannot push or open issues or pull requests.
mightyscape-1.1-deprecated/extensions/cutcraft/core/part.py
2020-07-31 13:46:07 +02:00

93 lines
3.0 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (C) 2018 Michael Matthews
#
# This file is part of CutCraft.
#
# CutCraft is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# CutCraft 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with CutCraft. If not, see <http://www.gnu.org/licenses/>.
from copy import deepcopy
from .point import Point
from .rectangle import Rectangle
from .trace import Trace
class Part(object):
""" List of traces that make up a part. """
def __init__(self):
self.traces = []
return
def close(self):
""" Close each traces back to their start. """
for trace in self.traces:
trace.close()
return
def applykerf(self, kerf):
""" Apply an offset to allow for the kerf when cutting. """
for trace in self.traces:
trace.applykerf(kerf)
return
def svg(self):
# Generate SVG string for this part.
return " ".join([trace.svg() for trace in self.traces])
def bbox(self):
bboxes = [trace.bbox() for trace in self.traces]
x = [p1.x for p1, p2 in bboxes] + [p2.x for p1, p2 in bboxes]
y = [p1.y for p1, p2 in bboxes] + [p2.y for p1, p2 in bboxes]
return Rectangle(Point(min(x), min(y)), Point(max(x), max(y)))
def area(self):
bbox = self.bbox()
return bbox.area()
def size(self):
bbox = self.bbox()
return bbox.size()
def __add__(self, other):
p = Part()
if isinstance(other, Part):
p.traces = self.traces + deepcopy(other.traces)
elif isinstance(other, Trace):
p.traces = deepcopy(self.traces)
p.traces.append(other)
elif isinstance(other, Point):
p.traces = self.traces
for trace in p.traces:
trace.offset(other)
else:
raise RuntimeError("Can only add a Part, Trace or Point to an existing Part.")
return p
def __iadd__(self, other):
if isinstance(other, Part):
self.traces.extend(other.traces)
elif isinstance(other, Trace):
self.traces.append(deepcopy(other))
elif isinstance(other, Point):
for trace in self.traces:
trace.offset(other)
else:
raise RuntimeError("Can only add a Part, Trace or Point to an existing Part.")
return self
def __repr__(self):
return "Part" + str(self)
def __str__(self):
l = len(self.traces)
return "(" + str(l) + " trace" + ("s" if l>1 else "") + ")"