66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
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#!/usr/bin/env python3
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import inkex
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from inkex import Style
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import re
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import random
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class JitterGradients(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument('-j', '--jitter_amount', type=int, default=10, help='Relative to distance between gradient nodes')
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def getUrlFromString(self, text):
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pattern = re.compile(r"url\(#([a-zA-Z0-9_-]+)\)")
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result = re.search(pattern, text)
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if (result):
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return result.group(1)
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else:
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return 0;
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def getFill(self, element):
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if(element.get('fill') and self.getUrlFromString(element.get('fill'))):
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return self.getUrlFromString(element.get('fill'))
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elif (element.get('style') and Style(element.get('style'))['fill'] and self.getUrlFromString(Style(element.get('style'))['fill'])):
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return self.getUrlFromString(Style(element.get('style'))['fill'])
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else:
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return None
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def getGradientFromId(self, elementId):
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element = self.svg.getElementById(elementId)
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if (element is not None and element.tag.find("linearGradient") >= 0):
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return element
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else:
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return None
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def effect(self):
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option = self.options.jitter_amount
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self._main_function(option)
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def _main_function(self, amount):
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for element in self.svg.selected.values():
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fillId = self.getFill(element)
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if (fillId is None):
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continue
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gradient = self.getGradientFromId(fillId)
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if (gradient is None):
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continue
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x1 = self.svg.unittouu(gradient.get("x1"))
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y1 = self.svg.unittouu(gradient.get("y1"))
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x2 = self.svg.unittouu(gradient.get("x2"))
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y2 = self.svg.unittouu(gradient.get("y2"))
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x1 += random.uniform(-amount, amount)
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y1 += random.uniform(-amount, amount)
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x2 += random.uniform(-amount, amount)
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y2 += random.uniform(-amount, amount)
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gradient.set('x1', str(self.svg.uutounit(x1, self.svg.unit)) + self.svg.unit)
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gradient.set('y1', str(self.svg.uutounit(y1, self.svg.unit)) + self.svg.unit)
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gradient.set('x2', str(self.svg.uutounit(x2, self.svg.unit)) + self.svg.unit)
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gradient.set('y2', str(self.svg.uutounit(y2, self.svg.unit)) + self.svg.unit)
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if __name__ == '__main__':
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JitterGradients().run()
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