159 lines
5.4 KiB
Python
159 lines
5.4 KiB
Python
#!/usr/bin/env python3
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#
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# License: GPL2
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# Copyright Mark "Klowner" Riedesel
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# https://github.com/Klowner/inkscape-applytransforms
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#
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import inkex
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import math
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from inkex.paths import CubicSuperPath, Path
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from inkex.transforms import Transform
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from inkex.styles import Style
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NULL_TRANSFORM = Transform([[1.0, 0.0, 0.0], [0.0, 1.0, 0.0]])
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class ApplyTransform(inkex.Effect):
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def __init__(self):
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inkex.Effect.__init__(self)
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def effect(self):
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if self.svg.selected:
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for id, shape in self.svg.selected.items():
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self.recursiveFuseTransform(shape)
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else:
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self.recursiveFuseTransform(self.document.getroot())
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@staticmethod
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def objectToPath(node):
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if node.tag == inkex.addNS('g', 'svg'):
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return node
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if node.tag == inkex.addNS('path', 'svg') or node.tag == 'path':
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for attName in node.attrib.keys():
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if ("sodipodi" in attName) or ("inkscape" in attName):
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del node.attrib[attName]
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return node
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return node
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def scaleStrokeWidth(self, node, transf):
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if 'style' in node.attrib:
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style = node.attrib.get('style')
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style = dict(Style.parse_str(style))
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update = False
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if 'stroke-width' in style:
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try:
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stroke_width = float(style.get('stroke-width').strip().replace("px", ""))
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stroke_width *= math.sqrt(abs(transf.a * transf.d))
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style['stroke-width'] = str(stroke_width)
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update = True
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except AttributeError:
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pass
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if update:
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node.attrib['style'] = Style(style).to_str()
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def recursiveFuseTransform(self, node, transf=[[1.0, 0.0, 0.0], [0.0, 1.0, 0.0]]):
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transf = Transform(transf) * Transform(node.get("transform", None))
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if 'transform' in node.attrib:
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del node.attrib['transform']
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node = ApplyTransform.objectToPath(node)
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if transf == NULL_TRANSFORM:
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# Don't do anything if there is effectively no transform applied
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# reduces alerts for unsupported nodes
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pass
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elif 'd' in node.attrib:
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d = node.get('d')
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p = CubicSuperPath(d)
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p = Path(p).to_absolute().transform(transf, True)
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node.set('d', Path(CubicSuperPath(p).to_path()))
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self.scaleStrokeWidth(node, transf)
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elif node.tag in [inkex.addNS('polygon', 'svg'),
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inkex.addNS('polyline', 'svg')]:
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points = node.get('points')
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points = points.strip().split(' ')
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for k, p in enumerate(points):
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if ',' in p:
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p = p.split(',')
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p = [float(p[0]), float(p[1])]
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p = transf.apply_to_point(p)
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p = [str(p[0]), str(p[1])]
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p = ','.join(p)
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points[k] = p
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points = ' '.join(points)
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node.set('points', points)
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self.scaleStrokeWidth(node, transf)
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elif node.tag in [inkex.addNS("ellipse", "svg"), inkex.addNS("circle", "svg")]:
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def isequal(a, b):
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return abs(a - b) <= transf.absolute_tolerance
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if node.TAG == "ellipse":
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rx = float(node.get("rx"))
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ry = float(node.get("ry"))
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else:
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rx = float(node.get("r"))
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ry = rx
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cx = float(node.get("cx"))
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cy = float(node.get("cy"))
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sqxy1 = (cx - rx, cy - ry)
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sqxy2 = (cx + rx, cy - ry)
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sqxy3 = (cx + rx, cy + ry)
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newxy1 = transf.apply_to_point(sqxy1)
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newxy2 = transf.apply_to_point(sqxy2)
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newxy3 = transf.apply_to_point(sqxy3)
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node.set("cx", (newxy1[0] + newxy3[0]) / 2)
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node.set("cy", (newxy1[1] + newxy3[1]) / 2)
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edgex = math.sqrt(
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abs(newxy1[0] - newxy2[0]) ** 2 + abs(newxy1[1] - newxy2[1]) ** 2
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)
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edgey = math.sqrt(
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abs(newxy2[0] - newxy3[0]) ** 2 + abs(newxy2[1] - newxy3[1]) ** 2
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)
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if not isequal(edgex, edgey) and (
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node.TAG == "circle"
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or not isequal(newxy2[0], newxy3[0])
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or not isequal(newxy1[1], newxy2[1])
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):
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inkex.utils.errormsg(
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"Warning: Shape %s (%s) is approximate only, try Object to path first for better results"
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% (node.TAG, node.get("id"))
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)
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if node.TAG == "ellipse":
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node.set("rx", edgex / 2)
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node.set("ry", edgey / 2)
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else:
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node.set("r", edgex / 2)
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elif node.tag in [inkex.addNS('rect', 'svg'),
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inkex.addNS('text', 'svg'),
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inkex.addNS('image', 'svg'),
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inkex.addNS('use', 'svg')]:
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inkex.utils.errormsg(
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"Shape %s (%s) not yet supported, try Object to path first"
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% (node.TAG, node.get("id"))
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)
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else:
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# e.g. <g style="...">
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self.scaleStrokeWidth(node, transf)
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for child in node.getchildren():
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self.recursiveFuseTransform(child, transf)
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if __name__ == '__main__':
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ApplyTransform().run() |