70 lines
3.0 KiB
Python
70 lines
3.0 KiB
Python
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#!/usr/bin/env python3
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# Purge short lines
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# This script is designed to be used to clean up/simplify 2D vector exports from
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# SketchUp. It ignores everything but paths between exactly 2 points.
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import inkex
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import math
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debug = False
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class EnerothPurgeShortEdges(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('-w', '--length', action = 'store',
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type = float, dest = 'length', default = 10.0)
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def effect(self):
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length = self.options.length
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svg = self.document.getroot()
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if len(self.svg.selected)==0:
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self.iterate_node(self.document.getroot())
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else:
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for id, node in self.svg.selected.items():
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self.iterate_node(node)
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def iterate_node(self, node):
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self.do_node(node)
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for child in node:
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self.iterate_node(child)
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def do_node(self, node):
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if node.attrib.has_key('d'):
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points = []
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instruction = None
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prev_coords = [0,0]
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words = node.get('d').split(' ')
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for i, word in enumerate(words):
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if len(word) == 1:
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instruction = word
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# inkex.utils.debug(word)
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else:
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# Sometimes there is the case that "coords" returns only an array like [-1.29] (only one coordinate) instead of XY coordinates. Reason is the type "map"
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coords = list(map(lambda c: float(c), word.split(',')))
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# inkex.utils.debug(coords)
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if instruction.lower() == instruction:
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# inkex.utils.debug("coords len=" + str(len(coords)) + "prev_coords len=" + str(len(prev_coords)))
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try:
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coords[0] += prev_coords[0]
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coords[1] += prev_coords[1]
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# if len(coords) == 2:
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# coords[1] += prev_coords[1]
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prev_coords = coords
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# Assume all coordinates are points of straight lines (instructor being M, m, L or l)
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# inkex.utils.debug("X=" + str(coords[0]) + "Y=" + str(coords[1]))
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points.append(coords)
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# inkex.utils.debug("pointsCount=" + str(len(points)))
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if len(points) == 2:
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length = math.sqrt((points[0][0]-points[1][0])**2 + (points[0][1]-points[1][1])**2)
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# inkex.utils.debug("length=" + str(length))
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if debug:
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inkex.utils.debug(length)
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if length < self.options.length:
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# inkex.utils.debug("delete")
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node.getparent().remove(node)
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except:
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pass #ignore errors in case of vertical lines or horizonal lines
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EnerothPurgeShortEdges().run()
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