89 lines
3.9 KiB
Python
89 lines
3.9 KiB
Python
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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"""
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A Inkscape extension to generate a pattern that allows to bend wood or MDF one it is laser cut.
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"""
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import sys, copy
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import inkex, simpletransform
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import simplestyle
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import math
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class BendWoodCutsPattern(inkex.Effect):
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height = -1.0
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def __init__(self):
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inkex.Effect.__init__(self)
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self.OptionParser.add_option('-w', '--width', action='store', type='float', dest='width', default=10, help='Width (mm)')
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self.OptionParser.add_option('-x', '--height', action='store', type='float', dest='height', default=100, help='Height (mm)')
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self.OptionParser.add_option('-H', '--horizontalLineSeparation', action='store', type='float', dest='horizontalLineSeparation', default=1, help='Horizontal Line Separation (mm)')
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self.OptionParser.add_option('-v', '--verticalLineSeparation', action='store', type='float', dest='verticalLineSeparation', default=3, help='Vertical Line Separation (mm)')
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self.OptionParser.add_option('-j', '--maxLineLength', action='store', type='float', dest='maxLineLength', default=30, help='Max Line Length (mm)')
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self.OptionParser.add_option('-t', '--addInitMarks', action='store', type='string', dest='addInitMarks', default="false", help='Add Init Marks')
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self.OptionParser.add_option('-g', '--groupLines', action='store', type='string', dest='groupLines', default="false", help='Group Lines')
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#draw an SVG line segment between the given (raw) points
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def draw_SVG_line(self, (x1, y1), (x2, y2), parent):
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if self.height < 0:
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svg = self.document.getroot()
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self.height = self.unittouu(svg.attrib['height'])
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line_style = { 'stroke-width':0.35433071, 'stroke':'#000000'}
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line_attribs = {'style' : simplestyle.formatStyle(line_style),
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'd' : 'M '+str(x1 * 3.5433071)+','+str(self.height - y1 * 3.5433071)+' L '+str(x2 * 3.5433071)+','+str(self.height - y2 * 3.5433071)}
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line = inkex.etree.SubElement(parent, inkex.addNS('path','svg'), line_attribs )
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def effect(self):
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width = self.options.width
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height = self.options.height
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horizontalLineSeparation = self.options.horizontalLineSeparation
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verticalLineSeparation = self.options.verticalLineSeparation
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maxLineLength = self.options.maxLineLength
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marks = self.options.addInitMarks == "true"
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group = self.options.groupLines == "true"
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parent = self.current_layer
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if group:
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parent = inkex.etree.SubElement(parent, 'g')
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xLines = int(width / horizontalLineSeparation)
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maxLineLength = self.options.maxLineLength
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linesPerColumn = int(math.ceil(height / maxLineLength))
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ll = height / linesPerColumn
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for x in range(0, xLines):
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if marks:
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self.draw_SVG_line((x * horizontalLineSeparation, -3), (x * horizontalLineSeparation, -2), parent)
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if x % 2 == 0:
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for y in range(0, linesPerColumn):
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self.draw_SVG_line((x * horizontalLineSeparation, y * ll + verticalLineSeparation / 2), (x * horizontalLineSeparation, (y + 1) * ll - verticalLineSeparation / 2), parent)
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else:
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for y in range(-1, linesPerColumn):
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incy = ll / 2
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y0 = y * ll + verticalLineSeparation / 2 + incy
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if y0 < 0:
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y0 = -1
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y1 = (y + 1) * ll - verticalLineSeparation / 2 + incy
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if y1 > height:
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y1 = height + 1
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self.draw_SVG_line((x * horizontalLineSeparation, y0), (x * horizontalLineSeparation, y1), parent)
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effect = BendWoodCutsPattern()
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effect.affect()
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