48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
#!/usr/bin/env python3
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'''
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Extension for InkScape 1.0
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Features
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- Filter paths which are smaller than a given length or area
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Author: Mario Voigt / FabLab Chemnitz
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Mail: mario.voigt@stadtfabrikanten.org
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Date: 03.08.2020
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Last patch: 20.04.2021
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License: GNU GPL v3
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'''
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import inkex
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from inkex.bezier import csplength, csparea
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class FilterSmallThings(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument('--unit')
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pars.add_argument('--threshold', type=float, help='Remove paths with an threshold smaller than this value')
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pars.add_argument('--measure', default="length")
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def effect(self):
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self.options.threshold = self.svg.unittouu(str(self.options.threshold) + self.svg.unit)
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unit_factor = 1.0 / self.svg.uutounit(1.0,self.options.unit)
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if self.options.threshold == 0:
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return
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for element in self.document.xpath("//svg:path", namespaces=inkex.NSS):
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try:
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csp = element.path.transform(element.composed_transform()).to_superpath()
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if self.options.measure == "area":
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area = -csparea(csp) #is returned as negative value. we need to invert with -
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if area < (self.options.threshold * (unit_factor * unit_factor)):
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element.delete()
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elif self.options.measure == "length":
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slengths, stotal = csplength(csp) #get segment lengths and total length of path in document's internal unit
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if stotal < (self.options.threshold * unit_factor):
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element.delete()
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except Exception as e:
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pass
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if __name__ == '__main__':
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FilterSmallThings().run() |