FabLab_Chemnitz/mightyscape-1.1-deprecated
FabLab_Chemnitz/mightyscape-1.1-deprecated
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fix scale to size

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Mario Voigt 2021-11-02 01:32:44 +01:00
parent 04062e1841
commit 2d3c5e7091
1 changed files with 38 additions and 19 deletions
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57
extensions/fablabchemnitz/scale_to_size/scale_to_size.py
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@ -23,12 +23,20 @@ class ScaleToSize(inkex.EffectExtension):
def effect(self): def effect(self):
unit_factor = 1.0 / self.svg.uutounit(1.0,self.options.unit) unit_factor = 1.0 / self.svg.uutounit(1.0,self.options.unit)
for id, node in self.svg.selected.items(): scale_factor = self.svg.unittouu("1px")
#get recent XY coordinates (top left corner of the bounding box) #get recent XY coordinates (top left corner of the bounding box)
bbox = node.bounding_box() for element in self.svg.selected.values():
new_horiz_scale = self.options.expected_size * unit_factor / bbox.width if isinstance (element, inkex.Rectangle) or \
new_vert_scale = self.options.expected_size * unit_factor / bbox.height isinstance (element, inkex.Circle) or \
isinstance (element, inkex.Ellipse):
bbox = element.bounding_box() * unit_factor
new_horiz_scale = self.options.expected_size * unit_factor / bbox.width / scale_factor
new_vert_scale = self.options.expected_size * unit_factor / bbox.height / scale_factor
else:
bbox = element.bounding_box()
new_horiz_scale = self.options.expected_size * unit_factor / bbox.width
new_vert_scale = self.options.expected_size * unit_factor / bbox.height
if self.options.scale_type == "Horizontal": if self.options.scale_type == "Horizontal":
translation_matrix = [[new_horiz_scale, 0.0, 0.0], [0.0, 1.0, 0.0]] translation_matrix = [[new_horiz_scale, 0.0, 0.0], [0.0, 1.0, 0.0]]
@ -36,32 +44,43 @@ class ScaleToSize(inkex.EffectExtension):
translation_matrix = [[1.0, 0.0, 0.0], [0.0, new_vert_scale, 0.0]] translation_matrix = [[1.0, 0.0, 0.0], [0.0, new_vert_scale, 0.0]]
else: #Uniform else: #Uniform
translation_matrix = [[new_horiz_scale, 0.0, 0.0], [0.0, new_vert_scale, 0.0]] translation_matrix = [[new_horiz_scale, 0.0, 0.0], [0.0, new_vert_scale, 0.0]]
node.transform = Transform(translation_matrix) * node.transform element.transform = Transform(translation_matrix) * element.composed_transform()
# now that the node moved we need to get the nodes XY coordinates again to fix them # now that the element moved we need to get the elements XY coordinates again to fix them
bbox_new = node.bounding_box() bbox_new = element.bounding_box()
#inkex.utils.debug(cx) #inkex.utils.debug(cx)
#inkex.utils.debug(cy) #inkex.utils.debug(cy)
#inkex.utils.debug(cx_new) #inkex.utils.debug(cx_new)
#inkex.utils.debug(cy_new) #inkex.utils.debug(cy_new)
# We remove the transformation attribute from SVG XML tree in case it's regular path. In case the node is an object like arc,circle, ellipse or star we have the attribute "sodipodi:type". Then we do not play with it's path because the size transformation will not apply (this code block is ugly) # We remove the transformation attribute from SVG XML tree in case it's regular path. In case the element is an object like arc,circle, ellipse or star we have the attribute "sodipodi:type". Then we do not play with it's path because the size transformation will not apply (this code block is ugly)
if node.get ('sodipodi:type') is None and 'd' in node.attrib: if element.get ('sodipodi:type') is None and 'd' in element.attrib:
#inkex.utils.debug("it's a path!") #inkex.utils.debug("it's a path!")
d = node.get('d') d = element.get('d')
p = CubicSuperPath(d) p = CubicSuperPath(d)
transf = Transform(node.get("transform", None)) transf = Transform(element.get("transform", None))
if 'transform' in node.attrib: if 'transform' in element.attrib:
del node.attrib['transform'] del element.attrib['transform']
p = Path(p).to_absolute().transform(transf, True) p = Path(p).to_absolute().transform(transf, True)
node.set('d', Path(CubicSuperPath(p).to_path())) element.set('d', Path(CubicSuperPath(p).to_path()))
#else: #else:
#inkex.utils.debug("it's an object!") #inkex.utils.debug("it's an object!")
#we perform second translation to reset the center of the path #we perform second translation to reset the center of the path
translation_matrix = [[1.0, 0.0, bbox.left - bbox_new.left + (bbox.width - bbox_new.width)/2], [0.0, 1.0, bbox.top - bbox_new.top + (bbox.height - bbox_new.height)/2]] if isinstance (element, inkex.Rectangle) or \
node.transform = Transform(translation_matrix) * node.transform isinstance (element, inkex.Circle) or \
isinstance (element, inkex.Ellipse):
translation_matrix = [
[1.0, 0.0, scale_factor * (bbox.left - bbox_new.left + (bbox.width - bbox_new.width)/2)],
[0.0, 1.0, scale_factor * (bbox.top - bbox_new.top + (bbox.height - bbox_new.height)/2)]
]
else:
translation_matrix = [
[1.0, 0.0, bbox.left - bbox_new.left + (bbox.width - bbox_new.width)/2],
[0.0, 1.0, bbox.top - bbox_new.top + (bbox.height - bbox_new.height)/2]
]
element.transform = Transform(translation_matrix) * element.composed_transform()
if __name__ == '__main__': if __name__ == '__main__':
ScaleToSize().run() ScaleToSize().run()