754 lines
38 KiB
Python
754 lines
38 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) [2021] [Joseph Zakar], [observing@gmail.com]
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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 General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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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 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 this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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"""
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Given a set of parameters for two polygons, this program generates paper
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models of (1) the two polygons; (2) a collar (divided into segments if desired)
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represented by a strip with tabs and score lines; and (3) wrapper(s) for
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covering the tabbed strip(s).
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"""
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import inkex
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from inkex import Color
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import math
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import copy
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class pathStruct(object):
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def __init__(self):
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self.id="path0000"
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self.path=[]
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self.enclosed=False
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def __str__(self):
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return self.path
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class pnPoint(object):
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# This class came from https://github.com/JoJocoder/PNPOLY
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def __init__(self,p):
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self.p=p
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def __str__(self):
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return self.p
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def InPolygon(self,polygon,BoundCheck=False):
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inside=False
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if BoundCheck:
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minX=polygon[0][0]
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maxX=polygon[0][0]
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minY=polygon[0][1]
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maxY=polygon[0][1]
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for p in polygon:
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minX=min(p[0],minX)
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maxX=max(p[0],maxX)
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minY=min(p[1],minY)
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maxY=max(p[1],maxY)
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if self.p[0]<minX or self.p[0]>maxX or self.p[1]<minY or self.p[1]>maxY:
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return False
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j=len(polygon)-1
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for i in range(len(polygon)):
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if ((polygon[i][1]>self.p[1])!=(polygon[j][1]>self.p[1]) and (self.p[0]<(polygon[j][0]-polygon[i][0])*(self.p[1]-polygon[i][1])/( polygon[j][1] - polygon[i][1] ) + polygon[i][0])):
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inside =not inside
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j=i
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return inside
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class Collar(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument("--usermenu")
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pars.add_argument("--unit", default="in",help="Dimensional units")
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pars.add_argument("--polysides", type=int, default=6,help="Number of Polygon Sides")
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pars.add_argument("--poly1size", type=float, default=5.0, help="Size of Polygon 1 in dimensional units")
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pars.add_argument("--poly2size", type=float, default=3.0, help="Size of Polygon 2 in dimensional units")
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pars.add_argument("--collarheight", type=float, default=2.0, help="Height of collar in dimensional units")
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pars.add_argument("--collarparts", type=int, default=1,help="Number of parts to divide collar into")
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pars.add_argument("--dashlength", type=float, default=0.1, help="Length of dashline in dimensional units (zero for solid line)")
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pars.add_argument("--tabangle", type=float, default=45.0, help="Angle of tab edges in degrees")
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pars.add_argument("--tabheight", type=float, default=0.4, help="Height of tab in dimensional units")
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pars.add_argument("--generate_decorative_wrapper", type=inkex.Boolean, default=False, help="Generate decorative wrapper")
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pars.add_argument("--cosmetic_dash_style", type=inkex.Boolean, default=False, help="Cosmetic dash lines")
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pars.add_argument("--color_solid", type=Color, default='4278190335', help="Solid line color")
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pars.add_argument("--color_dash", type=Color, default='65535', help="Solid line dash")
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#draw SVG line segment(s) between the given (raw) points
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def drawline(self, dstr, name, parent, sstr=None):
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line_style = {'stroke':self.options.color_solid,'stroke-width':'0.25','fill':'#eeeeee'}
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if sstr == None:
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stylestr = str(inkex.Style(line_style))
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else:
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stylestr = sstr
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el = parent.add(inkex.PathElement())
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el.path = dstr
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el.style = stylestr
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el.label = name
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def makepoly(self, toplength, numpoly):
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r = toplength/(2*math.sin(math.pi/numpoly))
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pstr = ''
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for ppoint in range(0,numpoly):
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xn = r*math.cos(2*math.pi*ppoint/numpoly)
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yn = r*math.sin(2*math.pi*ppoint/numpoly)
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if ppoint == 0:
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pstr = 'M '
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else:
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pstr += ' L '
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pstr += str(xn) + ',' + str(yn)
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pstr = pstr + ' Z'
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return pstr
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# Thanks to Gabriel Eng for his python implementation of https://en.wikipedia.org/wiki/Line%E2%80%93line_intersection
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def findIntersection(self, x1,y1,x2,y2,x3,y3,x4,y4):
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px= ( (x1*y2-y1*x2)*(x3-x4)-(x1-x2)*(x3*y4-y3*x4) ) / ( (x1-x2)*(y3-y4)-(y1-y2)*(x3-x4) )
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py= ( (x1*y2-y1*x2)*(y3-y4)-(y1-y2)*(x3*y4-y3*x4) ) / ( (x1-x2)*(y3-y4)-(y1-y2)*(x3-x4) )
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return px, py
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def insidePath(self, path, p):
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point = pnPoint((p.x, p.y))
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pverts = []
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for pnum in path:
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pverts.append((pnum.x, pnum.y))
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isInside = point.InPolygon(pverts, True)
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return isInside # True if point p is inside path
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def makescore(self, pt1, pt2, dashlength):
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# Draws a dashed line of dashlength between two points
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# Dash = dashlength (in inches) space followed by dashlength mark
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# if dashlength is zero, we want a solid line
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apt1 = inkex.paths.Line(0.0,0.0)
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apt2 = inkex.paths.Line(0.0,0.0)
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ddash = ''
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if math.isclose(dashlength, 0.0):
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#inkex.utils.debug("Draw solid dashline")
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ddash = ' M '+str(pt1.x)+','+str(pt1.y)+' L '+str(pt2.x)+','+str(pt2.y)
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else:
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if math.isclose(pt1.y, pt2.y):
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#inkex.utils.debug("Draw horizontal dashline")
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if pt1.x < pt2.x:
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xcushion = pt2.x - dashlength
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xpt = pt1.x
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ypt = pt1.y
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else:
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xcushion = pt1.x - dashlength
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xpt = pt2.x
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ypt = pt2.y
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ddash = ''
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done = False
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while not(done):
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if (xpt + dashlength*2) <= xcushion:
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xpt = xpt + dashlength
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ddash = ddash + ' M ' + str(xpt) + ',' + str(ypt)
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xpt = xpt + dashlength
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ddash = ddash + ' L ' + str(xpt) + ',' + str(ypt)
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else:
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done = True
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elif math.isclose(pt1.x, pt2.x):
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#inkex.utils.debug("Draw vertical dashline")
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if pt1.y < pt2.y:
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ycushion = pt2.y - dashlength
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xpt = pt1.x
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ypt = pt1.y
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else:
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ycushion = pt1.y - dashlength
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xpt = pt2.x
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ypt = pt2.y
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ddash = ''
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done = False
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while not(done):
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if(ypt + dashlength*2) <= ycushion:
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ypt = ypt + dashlength
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ddash = ddash + ' M ' + str(xpt) + ',' + str(ypt)
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ypt = ypt + dashlength
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ddash = ddash + ' L ' + str(xpt) + ',' + str(ypt)
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else:
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done = True
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else:
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#inkex.utils.debug("Draw sloping dashline")
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if pt1.y > pt2.y:
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apt1.x = pt1.x
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apt1.y = pt1.y
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apt2.x = pt2.x
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apt2.y = pt2.y
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else:
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apt1.x = pt2.x
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apt1.y = pt2.y
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apt2.x = pt1.x
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apt2.y = pt1.y
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m = (apt1.y-apt2.y)/(apt1.x-apt2.x)
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theta = math.atan(m)
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msign = (m>0) - (m<0)
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ycushion = apt2.y + dashlength*math.sin(theta)
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xcushion = apt2.x + msign*dashlength*math.cos(theta)
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ddash = ''
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xpt = apt1.x
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ypt = apt1.y
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done = False
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while not(done):
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nypt = ypt - dashlength*2*math.sin(theta)
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nxpt = xpt - msign*dashlength*2*math.cos(theta)
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if (nypt >= ycushion) and (((m<0) and (nxpt <= xcushion)) or ((m>0) and (nxpt >= xcushion))):
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# move to end of space / beginning of mark
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xpt = xpt - msign*dashlength*math.cos(theta)
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ypt = ypt - msign*dashlength*math.sin(theta)
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ddash = ddash + ' M ' + str(xpt) + ',' + str(ypt)
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# draw the mark
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xpt = xpt - msign*dashlength*math.cos(theta)
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ypt = ypt - msign*dashlength*math.sin(theta)
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ddash = ddash + ' L ' + str(xpt) + ',' + str(ypt)
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else:
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done = True
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return ddash
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def detectIntersect(self, x1, y1, x2, y2, x3, y3, x4, y4):
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td = (x1-x2)*(y3-y4)-(y1-y2)*(x3-x4)
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if td == 0:
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# These line segments are parallel
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return False
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t = ((x1-x3)*(y3-y4)-(y1-y3)*(x3-x4))/td
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if (0.0 <= t) and (t <= 1.0):
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return True
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else:
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return False
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def makeTab(self, tpath, pt1, pt2, tabht, taba):
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# tpath - the pathstructure containing pt1 and pt2
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# pt1, pt2 - the two points where the tab will be inserted
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# tabht - the height of the tab
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# taba - the angle of the tab sides
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# returns the two tab points in order of closest to pt1
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tpt1 = inkex.paths.Line(0.0,0.0)
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tpt2 = inkex.paths.Line(0.0,0.0)
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currTabHt = tabht
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currTabAngle = taba
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testAngle = 1.0
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testHt = currTabHt * 0.001
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adjustTab = 0
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tabDone = False
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while not tabDone:
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# Let's find out the orientation of the tab
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if math.isclose(pt1.x, pt2.x):
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# It's vertical. Let's try the right side
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if pt1.y < pt2.y:
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tpt1.x = pt1.x + testHt
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tpt2.x = pt2.x + testHt
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tpt1.y = pt1.y + testHt/math.tan(math.radians(testAngle))
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tpt2.y = pt2.y - testHt/math.tan(math.radians(testAngle))
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pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
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pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
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if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
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(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
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tpt1.x = pt1.x - currTabHt
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tpt2.x = pt2.x - currTabHt
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else:
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tpt1.x = pt1.x + currTabHt
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tpt2.x = pt2.x + currTabHt
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tpt1.y = pt1.y + currTabHt/math.tan(math.radians(currTabAngle))
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tpt2.y = pt2.y - currTabHt/math.tan(math.radians(currTabAngle))
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else: # pt2.y < pt1.y
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tpt1.x = pt1.x + testHt
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tpt2.x = pt2.x + testHt
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tpt1.y = pt1.y - testHt/math.tan(math.radians(testAngle))
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tpt2.y = pt2.y + testHt/math.tan(math.radians(testAngle))
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pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
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pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
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if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
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(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
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tpt1.x = pt1.x - currTabHt
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tpt2.x = pt2.x - currTabHt
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else:
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tpt1.x = pt1.x + currTabHt
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tpt2.x = pt2.x + currTabHt
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tpt1.y = pt1.y - currTabHt/math.tan(math.radians(currTabAngle))
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tpt2.y = pt2.y + currTabHt/math.tan(math.radians(currTabAngle))
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elif math.isclose(pt1.y, pt2.y):
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# It's horizontal. Let's try the top
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if pt1.x < pt2.x:
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tpt1.y = pt1.y - testHt
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tpt2.y = pt2.y - testHt
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tpt1.x = pt1.x + testHt/math.tan(math.radians(testAngle))
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tpt2.x = pt2.x - testHt/math.tan(math.radians(testAngle))
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pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
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pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
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if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
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(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
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tpt1.y = pt1.y + currTabHt
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tpt2.y = pt2.y + currTabHt
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else:
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tpt1.y = pt1.y - currTabHt
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tpt2.y = pt2.y - currTabHt
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tpt1.x = pt1.x + currTabHt/math.tan(math.radians(currTabAngle))
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tpt2.x = pt2.x - currTabHt/math.tan(math.radians(currTabAngle))
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else: # pt2.x < pt1.x
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tpt1.y = pt1.y - testHt
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tpt2.y = pt2.y - testHt
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tpt1.x = pt1.x - testHt/math.tan(math.radians(testAngle))
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tpt2.x = pt2.x + testHt/math.tan(math.radians(testAngle))
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pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
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pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
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if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
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(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
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tpt1.y = pt1.y + currTabHt
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tpt2.y = pt2.y + currTabHt
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else:
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tpt1.y = pt1.y - currTabHt
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tpt2.y = pt2.y - currTabHt
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tpt1.x = pt1.x - currTabHt/math.tan(math.radians(currTabAngle))
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tpt2.x = pt2.x + currTabHt/math.tan(math.radians(currTabAngle))
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else: # the orientation is neither horizontal nor vertical
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# Let's get the slope of the line between the points
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# Because Inkscape's origin is in the upper-left corner,
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# a positive slope (/) will yield a negative value
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slope = (pt2.y - pt1.y)/(pt2.x - pt1.x)
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# Let's get the angle to the horizontal
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theta = math.degrees(math.atan(slope))
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# Let's construct a horizontal tab
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seglength = math.sqrt((pt1.x-pt2.x)**2 +(pt1.y-pt2.y)**2)
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if slope < 0.0:
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if pt1.x < pt2.x:
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tpt1.y = pt1.y - testHt
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tpt2.y = pt2.y - testHt
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tpt1.x = pt1.x + testHt/math.tan(math.radians(testAngle))
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tpt2.x = pt2.x - testHt/math.tan(math.radians(testAngle))
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tl1 = [('M', [pt1.x,pt1.y])]
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tl1 += [('L', [tpt1.x, tpt1.y])]
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ele1 = inkex.Path(tl1)
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tl2 = [('M', [pt1.x,pt1.y])]
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tl2 += [('L', [tpt2.x, tpt2.y])]
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ele2 = inkex.Path(tl2)
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thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
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thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
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tpt1.x = thetal1[1].x
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tpt1.y = thetal1[1].y
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tpt2.x = thetal2[1].x
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tpt2.y = thetal2[1].y
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pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
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pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
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if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
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(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
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tpt1.y = pt1.y + currTabHt
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tpt2.y = pt2.y + currTabHt
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else:
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tpt1.y = pt1.y - currTabHt
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tpt2.y = pt2.y - currTabHt
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tpt1.x = pt1.x + currTabHt/math.tan(math.radians(currTabAngle))
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tpt2.x = pt2.x - currTabHt/math.tan(math.radians(currTabAngle))
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tl1 = [('M', [pt1.x,pt1.y])]
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tl1 += [('L', [tpt1.x, tpt1.y])]
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ele1 = inkex.Path(tl1)
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tl2 = [('M', [pt1.x,pt1.y])]
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tl2 += [('L', [tpt2.x, tpt2.y])]
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ele2 = inkex.Path(tl2)
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thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
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thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
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tpt1.x = thetal1[1].x
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tpt1.y = thetal1[1].y
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tpt2.x = thetal2[1].x
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tpt2.y = thetal2[1].y
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else: # pt1.x > pt2.x
|
|
tpt1.y = pt1.y - testHt
|
|
tpt2.y = pt2.y - testHt
|
|
tpt1.x = pt1.x - testHt/math.tan(math.radians(testAngle))
|
|
tpt2.x = pt2.x + testHt/math.tan(math.radians(testAngle))
|
|
tl1 = [('M', [pt1.x,pt1.y])]
|
|
tl1 += [('L', [tpt1.x, tpt1.y])]
|
|
ele1 = inkex.Path(tl1)
|
|
tl2 = [('M', [pt1.x,pt1.y])]
|
|
tl2 += [('L', [tpt2.x, tpt2.y])]
|
|
ele2 = inkex.Path(tl2)
|
|
thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
|
|
thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
|
|
tpt1.x = thetal1[1].x
|
|
tpt1.y = thetal1[1].y
|
|
tpt2.x = thetal2[1].x
|
|
tpt2.y = thetal2[1].y
|
|
pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
|
|
pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
|
|
if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
|
|
(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
|
|
tpt1.y = pt1.y + currTabHt
|
|
tpt2.y = pt2.y + currTabHt
|
|
else:
|
|
tpt1.y = pt1.y - currTabHt
|
|
tpt2.y = pt2.y - currTabHt
|
|
tpt1.x = pt1.x - currTabHt/math.tan(math.radians(currTabAngle))
|
|
tpt2.x = pt2.x + currTabHt/math.tan(math.radians(currTabAngle))
|
|
tl1 = [('M', [pt1.x,pt1.y])]
|
|
tl1 += [('L', [tpt1.x, tpt1.y])]
|
|
ele1 = inkex.Path(tl1)
|
|
tl2 = [('M', [pt1.x,pt1.y])]
|
|
tl2 += [('L', [tpt2.x, tpt2.y])]
|
|
ele2 = inkex.Path(tl2)
|
|
thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
|
|
thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
|
|
tpt1.x = thetal1[1].x
|
|
tpt1.y = thetal1[1].y
|
|
tpt2.x = thetal2[1].x
|
|
tpt2.y = thetal2[1].y
|
|
else: # slope > 0.0
|
|
if pt1.x < pt2.x:
|
|
tpt1.y = pt1.y - testHt
|
|
tpt2.y = pt2.y - testHt
|
|
tpt1.x = pt1.x + testHt/math.tan(math.radians(testAngle))
|
|
tpt2.x = pt2.x - testHt/math.tan(math.radians(testAngle))
|
|
tl1 = [('M', [pt1.x,pt1.y])]
|
|
tl1 += [('L', [tpt1.x, tpt1.y])]
|
|
ele1 = inkex.Path(tl1)
|
|
tl2 = [('M', [pt1.x,pt1.y])]
|
|
tl2 += [('L', [tpt2.x, tpt2.y])]
|
|
ele2 = inkex.Path(tl2)
|
|
thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
|
|
thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
|
|
tpt1.x = thetal1[1].x
|
|
tpt1.y = thetal1[1].y
|
|
tpt2.x = thetal2[1].x
|
|
tpt2.y = thetal2[1].y
|
|
pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
|
|
pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
|
|
if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
|
|
(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
|
|
tpt1.y = pt1.y + currTabHt
|
|
tpt2.y = pt2.y + currTabHt
|
|
else:
|
|
tpt1.y = pt1.y - currTabHt
|
|
tpt2.y = pt2.y - currTabHt
|
|
tpt1.x = pt1.x + currTabHt/math.tan(math.radians(currTabAngle))
|
|
tpt2.x = pt2.x - currTabHt/math.tan(math.radians(currTabAngle))
|
|
tl1 = [('M', [pt1.x,pt1.y])]
|
|
tl1 += [('L', [tpt1.x, tpt1.y])]
|
|
ele1 = inkex.Path(tl1)
|
|
tl2 = [('M', [pt1.x,pt1.y])]
|
|
tl2 += [('L', [tpt2.x, tpt2.y])]
|
|
ele2 = inkex.Path(tl2)
|
|
thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
|
|
thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
|
|
tpt1.x = thetal1[1].x
|
|
tpt1.y = thetal1[1].y
|
|
tpt2.x = thetal2[1].x
|
|
tpt2.y = thetal2[1].y
|
|
else: # pt1.x > pt2.x
|
|
tpt1.y = pt1.y - testHt
|
|
tpt2.y = pt2.y - testHt
|
|
tpt1.x = pt1.x - testHt/math.tan(math.radians(testAngle))
|
|
tpt2.x = pt2.x + testHt/math.tan(math.radians(testAngle))
|
|
tl1 = [('M', [pt1.x,pt1.y])]
|
|
tl1 += [('L', [tpt1.x, tpt1.y])]
|
|
ele1 = inkex.Path(tl1)
|
|
tl2 = [('M', [pt1.x,pt1.y])]
|
|
tl2 += [('L', [tpt2.x, tpt2.y])]
|
|
ele2 = inkex.Path(tl2)
|
|
thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
|
|
thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
|
|
tpt1.x = thetal1[1].x
|
|
tpt1.y = thetal1[1].y
|
|
tpt2.x = thetal2[1].x
|
|
tpt2.y = thetal2[1].y
|
|
pnpt1 = inkex.paths.Move(tpt1.x, tpt1.y)
|
|
pnpt2 = inkex.paths.Move(tpt2.x, tpt2.y)
|
|
if ((not tpath.enclosed) and (self.insidePath(tpath.path, pnpt1) or self.insidePath(tpath.path, pnpt2))) or \
|
|
(tpath.enclosed and ((not self.insidePath(tpath.path, pnpt1)) and (not self.insidePath(tpath.path, pnpt2)))):
|
|
tpt1.y = pt1.y + currTabHt
|
|
tpt2.y = pt2.y + currTabHt
|
|
else:
|
|
tpt1.y = pt1.y - currTabHt
|
|
tpt2.y = pt2.y - currTabHt
|
|
tpt1.x = pt1.x - currTabHt/math.tan(math.radians(currTabAngle))
|
|
tpt2.x = pt2.x + currTabHt/math.tan(math.radians(currTabAngle))
|
|
tl1 = [('M', [pt1.x,pt1.y])]
|
|
tl1 += [('L', [tpt1.x, tpt1.y])]
|
|
ele1 = inkex.Path(tl1)
|
|
tl2 = [('M', [pt1.x,pt1.y])]
|
|
tl2 += [('L', [tpt2.x, tpt2.y])]
|
|
ele2 = inkex.Path(tl2)
|
|
thetal1 = ele1.rotate(theta, [pt1.x,pt1.y])
|
|
thetal2 = ele2.rotate(theta, [pt2.x,pt2.y])
|
|
tpt1.x = thetal1[1].x
|
|
tpt1.y = thetal1[1].y
|
|
tpt2.x = thetal2[1].x
|
|
tpt2.y = thetal2[1].y
|
|
# Check to see if any tabs intersect each other
|
|
if self.detectIntersect(pt1.x, pt1.y, tpt1.x, tpt1.y, pt2.x, pt2.y, tpt2.x, tpt2.y):
|
|
# Found an intersection.
|
|
if adjustTab == 0:
|
|
# Try increasing the tab angle in one-degree increments
|
|
currTabAngle = currTabAngle + 1.0
|
|
if currTabAngle > 88.0: # We're not increasing the tab angle above 89 degrees
|
|
adjustTab = 1
|
|
currTabAngle = taba
|
|
if adjustTab == 1:
|
|
# So, try reducing the tab height in 20% increments instead
|
|
currTabHt = currTabHt - tabht*0.2 # Could this lead to a zero tab_height?
|
|
if currTabHt <= 0.0:
|
|
# Give up
|
|
currTabHt = tabht
|
|
adjustTab = 2
|
|
if adjustTab == 2:
|
|
tabDone = True # Just show the failure
|
|
else:
|
|
tabDone = True
|
|
|
|
return tpt1,tpt2
|
|
|
|
def effect(self):
|
|
layer = self.svg.get_current_layer()
|
|
scale = self.svg.unittouu('1'+self.options.unit)
|
|
polysides = int(self.options.polysides)
|
|
poly1size = float(self.options.poly1size) * scale
|
|
poly2size = float(self.options.poly2size) * scale
|
|
collarht = float(self.options.collarheight) * scale
|
|
partcnt = int(self.options.collarparts)
|
|
tab_angle = float(self.options.tabangle)
|
|
tab_height = float(self.options.tabheight) * scale
|
|
dashlength = float(self.options.dashlength) * scale
|
|
polylarge = max(poly1size, poly2size) # Larger of the two polygons
|
|
polysmall = min(poly1size, poly2size) # Smaller of the two polygons
|
|
polysmallR = polysmall/2
|
|
polysmallr = polysmallR*math.cos(math.pi/polysides)
|
|
polysmalltabht = tab_height
|
|
if polysmallr < polysmalltabht:
|
|
polysmalltabht = polysmallr
|
|
wpaths = []
|
|
done = 0
|
|
# We go through this loop twice
|
|
# First time for the wrapper / decorative strip
|
|
# Second time for the model, scorelines, and the lids
|
|
while done < 2:
|
|
w1 = (polylarge)*(math.sin(math.pi/polysides))
|
|
w2 = (polysmall)*(math.sin(math.pi/polysides))
|
|
if done == 0:
|
|
# First time through, init the storage areas
|
|
pieces = []
|
|
nodes = []
|
|
nd = []
|
|
for i in range(4):
|
|
nd.append(inkex.paths.Line(0.0,0.0))
|
|
else:
|
|
# Second time through, empty the storage areas
|
|
i = 0
|
|
while i < polysides:
|
|
j = 0
|
|
while j < 4:
|
|
del pieces[i][0]
|
|
j = j + 1
|
|
i = i + 1
|
|
i = 0
|
|
while len(pieces) > 0:
|
|
del pieces[0]
|
|
i = i + 1
|
|
i = 0
|
|
while i < 4:
|
|
del nodes[0]
|
|
i = i + 1
|
|
for pn in range(polysides):
|
|
nodes.clear()
|
|
#what we need here is to skip the rotatation and just move the x and y if there is no difference between the polygon sizes.
|
|
#Added by Sue to handle equal polygons
|
|
if poly1size == poly2size:
|
|
nd[0].x = pn * w1
|
|
nd[0].y = collarht
|
|
nd[1].x = nd[0].x + w1
|
|
nd[1].y = nd[0].y
|
|
nd[2].x = nd[1].x
|
|
nd[2].y = nd[0].y - collarht
|
|
nd[3].x = nd[0].x
|
|
nd[3].y = nd[2].y
|
|
else:
|
|
if pn == 0:
|
|
nd[3].x = -w2/2
|
|
nd[3].y = (polysmall/2)*math.cos(math.pi/polysides)
|
|
nd[0].x = -w1/2
|
|
nd[0].y = (polylarge/2)*math.cos(math.pi/polysides)
|
|
vlen = math.sqrt(collarht**2 + (nd[0].y-nd[3].y)**2)
|
|
nd[0].y = nd[0].y + (vlen-(nd[0].y-nd[3].y))
|
|
nd[2].x = w2/2
|
|
nd[2].y = nd[3].y
|
|
nd[1].x = w1/2
|
|
nd[1].y = nd[0].y
|
|
ox,oy = self.findIntersection(nd[0].x,nd[0].y,nd[3].x,nd[3].y,nd[1].x,nd[1].y,nd[2].x,nd[2].y)
|
|
Q2 = math.degrees(math.atan((nd[0].y - oy)/(w1/2 - ox)))
|
|
Q1 = 90 - Q2
|
|
else:
|
|
dl = ''
|
|
for j in range(4):
|
|
if j == 0:
|
|
dl += 'M '
|
|
else:
|
|
dl += ' L '
|
|
dl += str(nd[j].x) + ',' + str(nd[j].y)
|
|
dl += ' Z'
|
|
p1 = inkex.paths.Path(path_d=dl)
|
|
p2 = p1.rotate(-2*Q1, (ox,oy))
|
|
for j in range(4):
|
|
nd[j].x = p2[j].x
|
|
nd[j].y = p2[j].y
|
|
for i in range(4):
|
|
nodes.append(copy.deepcopy(nd[i]))
|
|
pieces.append(copy.deepcopy(nodes))
|
|
dscores = []
|
|
if done == 0:
|
|
wpath = pathStruct() # We'll need this for makeTab
|
|
wpath.id = "c1"
|
|
for pc in range(partcnt):
|
|
dwrap = '' # Create the wrapper
|
|
dscores.clear()
|
|
sidecnt = math.ceil(polysides/partcnt)
|
|
if pc == partcnt - 1:
|
|
# Last time through creates the remainder of the pieces
|
|
sidecnt = polysides - math.ceil(polysides/partcnt)*pc
|
|
startpc = pc*math.ceil(polysides/partcnt)
|
|
endpc = startpc + sidecnt
|
|
for pn in range(startpc, endpc):
|
|
# First half
|
|
if(pn == startpc):
|
|
ppt0 = inkex.paths.Move(pieces[pn][0].x,pieces[pn][0].y)
|
|
dwrap +='M '+str(ppt0.x)+','+str(ppt0.y)
|
|
# We're also creating wpath for later use in creating the model
|
|
wpath.path.append(ppt0)
|
|
ppt1 = inkex.paths.Line(pieces[pn][1].x,pieces[pn][1].y)
|
|
dwrap +=' L '+str(ppt1.x)+','+str(ppt1.y)
|
|
wpath.path.append(ppt1)
|
|
if pn < endpc - 1:
|
|
# Put scorelines across the collar
|
|
ppt2 = inkex.paths.Line(pieces[pn][2].x,pieces[pn][2].y)
|
|
spaths = self.makescore(ppt1, ppt2,dashlength)
|
|
dscores.append(spaths)
|
|
for pn in range(endpc-1, startpc-1, -1):
|
|
# Second half
|
|
if(pn == (endpc-1)):
|
|
ppt2 = inkex.paths.Line(pieces[pn][2].x,pieces[pn][2].y)
|
|
dwrap +=' L '+str(pieces[pn][2].x)+','+str(pieces[pn][2].y)
|
|
wpath.path.append(inkex.paths.Line(pieces[pn][2].x,pieces[pn][2].y))
|
|
ppt3 = inkex.paths.Line(pieces[pn][3].x,pieces[pn][3].y)
|
|
dwrap +=' L '+str(ppt3.x)+','+str(ppt3.y)
|
|
wpath.path.append(inkex.paths.Line(pieces[pn][3].x,pieces[pn][3].y))
|
|
dwrap +=' Z' # Close off the wrapper's path
|
|
wpath.path.append(ppt0)
|
|
if math.isclose(dashlength, 0.0):
|
|
# lump together all the score lines
|
|
dscore = ''
|
|
for dndx in range(len(dscores)):
|
|
if dndx == 0:
|
|
dscore = dscores[dndx][1:]
|
|
else:
|
|
dscore += dscores[dndx]
|
|
group = inkex.elements._groups.Group()
|
|
group.label = 'group'+str(pc)+'ws'
|
|
if self.options.generate_decorative_wrapper is True:
|
|
self.drawline(dwrap,'wrapper'+str(pc),group,sstr="fill:#ffdddd;stroke:{};stroke-width:0.25".format(self.options.color_solid)) # Output the wrapper
|
|
self.drawline(dscore,'score'+str(pc)+'w',group,sstr="fill:#ffdddd;stroke:{};stroke-width:0.25".format(self.options.color_dash)) # Output the scorelines separately
|
|
layer.append(group)
|
|
else:
|
|
# lump together all the score lines with the model
|
|
for dndx in dscores:
|
|
dwrap = dwrap + dndx
|
|
self.drawline(dwrap,'wrapper'+str(pc),layer,sstr="fill:#ffdddd;stroke:{};stroke-width:0.25".format(self.options.color_solid)) # Output the wrapper
|
|
wpaths.append(copy.deepcopy(wpath))
|
|
wpath.path.clear()
|
|
done = 1
|
|
else:
|
|
# Create the model
|
|
for pc in range(partcnt):
|
|
dprop = ''
|
|
dscores.clear()
|
|
sidecnt = math.ceil(polysides/partcnt)
|
|
if pc == partcnt - 1:
|
|
sidecnt = polysides - math.ceil(polysides/partcnt)*pc
|
|
startpc = pc*math.ceil(polysides/partcnt)
|
|
endpc = startpc + sidecnt
|
|
for pn in range(startpc, endpc):
|
|
# First half
|
|
if pn == startpc:
|
|
dprop = 'M '+str(pieces[pn][0].x)+','+str(pieces[pn][0].y)
|
|
cpt1 = inkex.paths.Move(pieces[pn][0].x, pieces[pn][0].y)
|
|
cpt2 = inkex.paths.Move(pieces[pn][1].x, pieces[pn][1].y)
|
|
tabpt1, tabpt2 = self.makeTab(wpaths[pc], cpt1, cpt2, tab_height, tab_angle)
|
|
dprop +=' L '+str(tabpt1.x)+','+str(tabpt1.y)
|
|
dprop +=' L '+str(tabpt2.x)+','+str(tabpt2.y)
|
|
dprop += ' L '+str(pieces[pn][1].x)+','+str(pieces[pn][1].y)
|
|
# As long as we're here, create a scoreline along the tab...
|
|
spaths = self.makescore(pieces[pn][0], pieces[pn][1],dashlength)
|
|
dscores.append(spaths)
|
|
# ...and across the collar
|
|
spaths = self.makescore(pieces[pn][1], pieces[pn][2],dashlength)
|
|
dscores.append(spaths)
|
|
for pn in range(endpc-1, startpc-1, -1):
|
|
# Second half
|
|
if(pn == (endpc-1)):
|
|
# Since we're starting on the last piece, put a tab on the end of it, too
|
|
cpt1 = inkex.paths.Move(pieces[pn][1].x, pieces[pn][1].y)
|
|
cpt2 = inkex.paths.Move(pieces[pn][2].x, pieces[pn][2].y)
|
|
tabpt1, tabpt2 = self.makeTab(wpaths[pc], cpt1, cpt2, tab_height, tab_angle)
|
|
dprop +=' L '+str(tabpt1.x)+','+str(tabpt1.y)
|
|
dprop +=' L '+str(tabpt2.x)+','+str(tabpt2.y)
|
|
# Create a scoreline along the tab
|
|
#spaths = self.makescore(pieces[pn][1], pieces[pn][2],dashlength)
|
|
#dscores.append(spaths)
|
|
dprop +=' L '+str(pieces[pn][2].x)+','+str(pieces[pn][2].y)
|
|
cpt1 = inkex.paths.Move(pieces[pn][2].x, pieces[pn][2].y)
|
|
cpt2 = inkex.paths.Move(pieces[pn][3].x, pieces[pn][3].y)
|
|
tabpt1, tabpt2 = self.makeTab(wpaths[pc], cpt1, cpt2, polysmalltabht, tab_angle)
|
|
dprop +=' L '+str(tabpt1.x)+','+str(tabpt1.y)
|
|
dprop +=' L '+str(tabpt2.x)+','+str(tabpt2.y)
|
|
dprop += ' L '+str(pieces[pn][3].x)+','+str(pieces[pn][3].y)
|
|
# Create a scoreline along the tab
|
|
spaths = self.makescore(pieces[pn][2], pieces[pn][3],dashlength)
|
|
dscores.append(spaths)
|
|
dprop += ' Z' # Close off the model's path
|
|
# lump together all the score lines
|
|
dscore = ''
|
|
for dndx in range(len(dscores)):
|
|
if dndx == 0:
|
|
dscore = dscores[dndx][1:]
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else:
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dscore += dscores[dndx]
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group = inkex.elements._groups.Group()
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group.label = 'group'+str(pc)+'ms'
|
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self.drawline(dprop,'model'+str(pc),group,sstr='stroke:{};stroke-width:0.25;fill:#eeeeee'.format(self.options.color_solid)) # Output the model
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|
|
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#self.drawline(dprop,'model'+str(pc),group,sstr=None) # Output the model
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#self.drawline(dscore,'score'+str(pc)+'m',group,sstr=None) # Output the scorelines separately
|
|
|
|
|
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if dscore != '':
|
|
dscore_style = 'stroke:{};stroke-width:0.25;fill:#eeeeee'.format(self.options.color_dash)
|
|
if self.options.cosmetic_dash_style is True:
|
|
dscore_style += ';stroke-dasharray:{}'.format(3, 3)
|
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self.drawline(dscore,'score'+str(pc),group,dscore_style) # Output the scorelines separately
|
|
|
|
layer.append(group)
|
|
|
|
# At this point, we can generate the top and bottom polygons
|
|
# r = sidelength/(2*sin(PI/numpoly))
|
|
self.drawline(self.makepoly(w1, polysides),'biglid',layer,sstr=None) # Output the bigger polygon
|
|
sp = self.makepoly(w2, polysides)
|
|
self.drawline(sp,'smalllid',layer,sstr=None) # Output the smaller polygon
|
|
done = 2
|
|
|
|
if __name__ == '__main__':
|
|
Collar().run()
|