FabLab_Chemnitz/mightyscape-1.1-deprecated
FabLab_Chemnitz/mightyscape-1.1-deprecated
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fixed handling of lines in vpypetools

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This commit is contained in:
Mario Voigt 2021-04-21 11:57:39 +02:00
parent fab5efe375
commit 1264a864bc
2 changed files with 38 additions and 14 deletions
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2
.settings/org.eclipse.core.resources.prefs Normal file
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@ -0,0 +1,2 @@
eclipse.preferences.version=1
encoding//extensions/fablabchemnitz/create_links.py=utf-8

50
extensions/fablabchemnitz/vpypetools/vpypetools.py
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@ -49,7 +49,8 @@ CLI / API docs:
- https://vpype.readthedocs.io/en/stable/api/vpype.html#module-vpype
Todo's
- find some python code to auto-convert strokes and objects to paths
- find some python code to auto-convert strokes and objects to paths (for input and for output again)
- remove fill property of converted lines (because there is no fill anymore) without crashing Inkscape ...
"""
class vpypetools (inkex.EffectExtension):
@ -131,7 +132,7 @@ class vpypetools (inkex.EffectExtension):
def effect(self):
lc = vpype.LineCollection() # create a new array of LineStrings consisting of Points. We convert selected paths to polylines and grab their points
nodesToWork = [] # we make an array of all collected nodes to get the boundingbox of that array. We need it to place the vpype converted stuff to the correct XY coordinates
elementsToWork = [] # we make an array of all collected nodes to get the boundingbox of that array. We need it to place the vpype converted stuff to the correct XY coordinates
applyTransformAvailable = False
@ -177,7 +178,10 @@ class vpypetools (inkex.EffectExtension):
for subPath in subPaths:
points = []
for csp in subPath:
points.append(Point(round(csp[1][0], self.options.decimals), round(csp[1][1], self.options.decimals)))
if len(csp[1]) > 0: #we need exactly two points per straight line segment
points.append(Point(round(csp[1][0], self.options.decimals), round(csp[1][1], self.options.decimals)))
if subPath[-1][0] == 'Z' or subPath[0][1] == subPath[-1][1]: #check if path is closed by Z or first pont == last point
points.append(Point(round(subPath[0][1][0], self.options.decimals), round(subPath[0][1][1], self.options.decimals))) #if closed, we add the first point again
lc.append(LineString(points))
children = node.getchildren()
@ -203,12 +207,13 @@ class vpypetools (inkex.EffectExtension):
'''
applytransform.ApplyTransform().recursiveFuseTransform(self.document.getroot())
if len(self.svg.selected) == 0:
nodesToWork = convertPath(self.document.getroot())
for element in nodesToWork:
elementsToWork = convertPath(self.document.getroot())
for element in elementsToWork:
input_bbox += element.bounding_box()
else:
for id, item in self.svg.selected.items():
nodesToWork = convertPath(item)
elementsToWork = None
for element in self.svg.selected.values():
elementsToWork = convertPath(element, elementsToWork)
#input_bbox = inkex.elements._selected.ElementList.bounding_box(self.svg.selected) # get BoundingBox for selection
input_bbox = self.svg.selection.bounding_box() # get BoundingBox for selection
if len(lc) == 0:
@ -216,17 +221,17 @@ class vpypetools (inkex.EffectExtension):
return
# find the first object in selection which has a style attribute (skips groups and other things which have no style)
firstElementStyle = None
for node in nodesToWork:
if node.attrib.has_key('style'):
firstElementStyle = node.get('style')
for element in elementsToWork:
if element.attrib.has_key('style'):
firstElementStyle = element.get('style')
doc = vpype.Document(page_size=(input_bbox.width + input_bbox.left, input_bbox.height + input_bbox.top)) #create new vpype document
doc.add(lc, layer_id=None) # we add the lineCollection (converted selection) to the vpype document
elif self.options.input_handling == "layers":
doc = vpype.read_multilayer_svg(self.options.input_file, quantization = self.options.flatness, crop = False, simplify = self.options.simplify, parallel = self.options.parallel, default_width = self.document.getroot().get('width'), default_height = self.document.getroot().get('height'))
for node in self.document.getroot().xpath("//svg:g", namespaces=inkex.NSS): #all groups/layers
nodesToWork.append(node)
for element in self.document.getroot().xpath("//svg:g", namespaces=inkex.NSS): #all groups/layers
elementsToWork.append(element)
tooling_length_before = doc.length()
traveling_length_before = doc.pen_up_length()
@ -365,6 +370,12 @@ class vpypetools (inkex.EffectExtension):
self.debug(_("Inkscape returned the following output when trying to run the vpype object to path back-conversion:"))
self.debug(cli_output)
# this does not work because line, polyline and polygon have no base class to execute replace_with
#if self.options.strokes_to_paths is True:
# for lineLayer in lineLayers:
# for element in lineLayer:
# element.replace_with(element.to_path_element())
# parse the SVG file
try:
stream = open(output_file, 'r')
@ -388,7 +399,18 @@ class vpypetools (inkex.EffectExtension):
lineLayers = import_doc.getroot().xpath("//svg:g[not(@id='pen_up_trajectories')]", namespaces=inkex.NSS) #all layer except the pen_up trajectories layer
if self.options.use_style_of_first_element is True and self.options.input_handling == "paths" and firstElementStyle is not None:
# if we remove the fill property and use "Use style of first element in layer" the conversion will just crash with an unknown reason
#declarations = firstElementStyle.split(';')
#for i, decl in enumerate(declarations):
# parts = decl.split(':', 2)
# if len(parts) == 2:
# (prop, val) = parts
# prop = prop.strip().lower()
# #if prop == 'fill':
# # declarations[i] = prop + ':none'
for lineLayer in lineLayers:
#lineLayer.set('style', ';'.join(declarations))
lineLayer.set('style', firstElementStyle)
lineLayer.attrib.pop('stroke') # remove unneccesary stroke attribute
lineLayer.attrib.pop('fill') # remove unneccesary fill attribute
@ -419,8 +441,8 @@ class vpypetools (inkex.EffectExtension):
# Remove selection objects to do a real replace with new objects from vpype document
if self.options.keep_objects is False:
for node in nodesToWork:
node.delete()
for element in elementsToWork:
element.delete()
if __name__ == '__main__':
vpypetools().run()