180 lines
8.3 KiB
Python
180 lines
8.3 KiB
Python
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#! /usr/bin/env python
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'''
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Generates Inkscape SVG file containing up to two polygons or circle taking kerf and clearance into account
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Copyright (C) 2016 Thore Mehr thore.mehr@gmail.com
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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'''
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__version__ = "0.8" ### please report bugs, suggestions etc to bugs@twot.eu ###
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import inkex
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import math
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from lxml import etree
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from inkex import Color
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def drawS(XYstring,color): # Draw lines from a list
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name='part'
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style = { 'stroke': color, 'fill': 'none' }
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drw = {'style':str(inkex.Style(style)),inkex.addNS('label','inkscape'):name,'d':XYstring}
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etree.SubElement(parent, inkex.addNS('path','svg'), drw )
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return
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def groupdraw(XYstrings,colors) :
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if len(XYstrings)==1:
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drawS(XYstrings[0],colors[0])
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return
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grp_name = 'Group'
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grp_attribs = {inkex.addNS('label','inkscape'):grp_name}
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grp = etree.SubElement(parent, 'g', grp_attribs)#the group to put everything in
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name='part'
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for i in range(len(XYstrings)):
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style = { 'stroke': colors[i], 'fill': 'none' }
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drw = {'style':str(inkex.Style(style)),inkex.addNS('label','inkscape'):name+str(i),'d':XYstrings[i]}
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etree.SubElement(grp, inkex.addNS('path','svg'), drw )
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return
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def svg_from_points(points,offset):
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s='M'+str(points[0][0]+offset[0])+','+str(points[0][1]+offset[1])
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for i in range(1,len(points)):
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s+='L'+str(points[i][0]+offset[0])+','+str(points[i][1]+offset[1])
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s+='Z'
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return s
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class Polygon(inkex.Effect):
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def __init__(self):
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inkex.Effect.__init__(self)
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self.arg_parser.add_argument('--page')
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self.arg_parser.add_argument('--unit', default='mm', help='Measure Units')
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self.arg_parser.add_argument('--o_type', type=int, default=1, help='Outer type')
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self.arg_parser.add_argument('--o_radius',type=float, default=100, help='Outer Radius')
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self.arg_parser.add_argument('--o_edges', type=int, default=1, help='Outer edges')
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self.arg_parser.add_argument('--o_r_type', type=int, default=1, help='Outer radius type')
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self.arg_parser.add_argument('--o_offset',type=float, default=100, help='Outer Radius')
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self.arg_parser.add_argument('--i_type', type=int, default=1, help='Inner type')
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self.arg_parser.add_argument('--i_radius',type=float, default=100, help='Inner Radius')
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self.arg_parser.add_argument('--i_edges', type=int, default=1, help='Inner edges')
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self.arg_parser.add_argument('--i_r_type', type=int, default=1, help='Inner radius type')
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self.arg_parser.add_argument('--i_offset',type=float, default=100, help='Outer Radius')
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self.arg_parser.add_argument('--kerf',type=float, default=0.5, help='Kerf (width) of cut')
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self.arg_parser.add_argument('--spacing',type=float, default=0.5)
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self.arg_parser.add_argument('--color1', type=Color, default='1923076095')
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self.arg_parser.add_argument('--color2', type=Color, default='4012452351')
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self.arg_parser.add_argument('--intensity', type=int, default=1)
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self.arg_parser.add_argument('--speed', type=int, default=1)
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self.arg_parser.add_argument('--pass_offset', type=int, default=1)
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self.arg_parser.add_argument('--displaylasertag', type=inkex.Boolean, default=False)
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self.arg_parser.add_argument('--lasertag', default="=pass%n:%s:%i:%c=")
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def effect(self):
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global parent,nomTab,equalTabs,thickness,kerf,correction
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# Get access to main SVG document element and get its dimensions.
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svg = self.document.getroot()
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# Get the attibutes:
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widthDoc = self.svg.unittouu(svg.get('width'))
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heightDoc = self.svg.unittouu(svg.get('height'))
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# Create a new layer.
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layer = etree.SubElement(svg, 'g')
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layer.set(inkex.addNS('label', 'inkscape'), 'newlayer')
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layer.set(inkex.addNS('groupmode', 'inkscape'), 'layer')
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parent=self.svg.get_current_layer()
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# Get script's option values.
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unit=self.options.unit
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kerf = self.svg.unittouu( str(self.options.kerf) + unit )
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spacing = self.svg.unittouu( str(self.options.spacing) + unit )
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o_type=self.options.o_type
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o_edges=self.options.o_edges
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o_r_type=self.options.o_r_type
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o_radius=self.svg.unittouu(str(self.options.o_radius)+unit)+kerf
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o_offset=math.radians(-self.options.o_offset)+math.pi
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i_type=self.options.i_type
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i_edges=self.options.i_edges
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i_r_type=self.options.i_r_type
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i_radius=self.svg.unittouu(str(self.options.i_radius)+unit)+kerf
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i_offset=math.radians(-self.options.i_offset)+math.pi
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color1=self.options.color1
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color2=self.options.color2
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intensity=self.options.intensity
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speed=self.options.speed
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pass_offset=self.options.pass_offset
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lasertag=self.options.lasertag
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if (o_r_type==2 and o_type==2):
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#a/sin(alpa)=b/sin(beta)=c/sin(gamma)
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#b=o_radius, alpha=(2*math.pi/o_edges), gamma=pi/2 , alpha+beta+gamma=pi->beta=pi-alpha+gamma
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#search for c
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#c=b*(sin(gamma)/sin(betta))
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beta=math.pi/2-(math.pi/o_edges)
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o_radius/=math.sin(beta)
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if (o_r_type==3 and o_type==2):
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beta=math.pi/2-(math.pi/o_edges)
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o_radius*=math.sin(beta)/math.sin(math.pi/o_edges)
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if (i_r_type==2 and i_type==3):
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#a/sin(alpa)=b/sin(beta)=c/sin(gamma)
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#b=o_radius, alpha=(2*math.pi/o_edges), gamma=pi/2 , alpha+beta+gamma=pi->beta=pi-alpha+gamma
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#search for c
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#c=b*(sin(gamma)/sin(betta))
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beta=math.pi/2-(math.pi/i_edges)
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i_radius/=math.sin(beta)
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if (i_r_type==3 and i_type==3):
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beta=math.pi/2-(math.pi/i_edges)
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i_radius*=math.sin(beta)/math.sin(math.pi/o_edges)
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#text = etree.Element(inkex.addNS('text','svg'))
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#text.text = "Outside:"+str(self.uutounit(cabinet_width,unit))+"x"+str(self.uutounit(cabinet_depth,unit))+"x"+str(self.uutounit(cabinet_height,unit))+" "
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#layer.append(text)
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if(o_type==1):
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s=['M '+str(spacing)+','+str(o_radius+spacing)+'a'+str(o_radius)+','+str(o_radius)+' 0 1,0 '+str(2*o_radius)+',0'+'a'+str(o_radius)+','+str(o_radius)+' 0 1,0 '+str(-2*o_radius)+',0']
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if(o_type==2):
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stepsize=2*math.pi/o_edges
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points=[]
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for i in range(o_edges):
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points+=[(math.sin(o_offset+stepsize*i)*(o_radius+kerf),math.cos(o_offset+stepsize*i)*(o_radius+kerf))]
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s=[svg_from_points(points,(o_radius+spacing,o_radius+spacing))]
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if(i_type==2):
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s+=['M '+str(spacing+o_radius-i_radius)+','+str(o_radius+spacing)+'a'+str(i_radius)+','+str(i_radius)+' 0 1,0 '+str(2*i_radius)+',0'+'a'+str(i_radius)+','+str(i_radius)+' 0 1,0 '+str(-2*i_radius)+',0']
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if(i_type==3):
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stepsize=2*math.pi/i_edges
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points=[]
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for i in range(i_edges):
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points+=[(math.sin(i_offset+stepsize*i)*(i_radius+kerf),math.cos(i_offset+stepsize*i)*(i_radius+kerf))]
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s+=[svg_from_points(points,(o_radius+spacing,o_radius+spacing))]
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groupdraw(s,[color1,color2])
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if self.options.displaylasertag:
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tag_1=lasertag
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tag_1=tag_1.replace("%n",str(pass_offset+1)).replace("%s",str(speed)).replace("%i",str(intensity)).replace("%c",str(color2))
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tag_2=lasertag
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tag_2=tag_2.replace("%n",str(pass_offset+2)).replace("%s",str(speed)).replace("%i",str(intensity)).replace("%c",str(color1))
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text = etree.Element(inkex.addNS('text','svg'))
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text.text = tag_1
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if (len(s)>1):
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text.text+=" "+tag_2
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layer.append(text)
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Polygon().run()
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