Added several fixes for create_links extension
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@ -4,6 +4,11 @@
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<id>fablabchemnitz.de.create_links</id>
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<id>fablabchemnitz.de.create_links</id>
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<param name="main_tabs" type="notebook">
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<param name="main_tabs" type="notebook">
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<page name="settings" gui-text="Settings">
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<page name="settings" gui-text="Settings">
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<param name="path_types" type="optiongroup" appearance="combo" gui-text="Apply for">
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<option value="open_paths">open paths</option>
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<option value="closed_paths">closed paths</option>
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<option value="both">both</option>
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</param>
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<param name="unit" type="optiongroup" appearance="combo" gui-text="Units">
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<param name="unit" type="optiongroup" appearance="combo" gui-text="Units">
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<option value="mm">mm</option>
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<option value="mm">mm</option>
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<option value="cm">cm</option>
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<option value="cm">cm</option>
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@ -14,15 +19,15 @@
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<option value="percent">%</option>
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<option value="percent">%</option>
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</param>
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</param>
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<param name="link_count" type="int" min="1" max="9999" gui-text="Link count">1</param>
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<param name="link_count" type="int" min="1" max="9999" gui-text="Link count">1</param>
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<param name="link_multiplicator (experimental)" type="int" min="0" max="9999" gui-text="Link multiplicator" gui-description="If se, we create a set of multiple gaps of same size next to the main gap">0</param>
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<param name="length_link" type="float" min="0.000" max="9999.000" precision="3" gui-text="Link length (the length of the gap)">1.000</param>
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<param name="length_link" type="float" min="0.000" max="9999.000" precision="3" gui-text="Link length (the length of the gap)">1.000</param>
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<param name="link_offset" type="float" min="-9999.000.000" max="9999.000" precision="3" gui-text="Link offset (+/-)">0.000</param>
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<param name="link_multiplicator" type="int" min="0" max="9999" gui-text="Link multiplicator (experimental)" gui-description="If set, we create a set of multiple gaps of same size next to the main gap">0</param>
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<param name="link_offset" type="float" min="-9999.000.000" max="9999.000" precision="3" gui-text="Link offset (+/-) (experimental)" gui-description="Does not properly work the intended way if link count is more than 1.">0.000</param>
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<param name="length_filter" type="bool" gui-text="Enable path length filtering">false</param>
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<param name="length_filter" type="bool" gui-text="Enable path length filtering">false</param>
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<param name="length_filter_value" type="float" min="0.000" max="9999.000" precision="3" gui-text="Paths with length more than">0.000</param>
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<param name="length_filter_value" type="float" min="0.000" max="9999.000" precision="3" gui-text="Paths with length more than">0.000</param>
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<param name="custom_dasharray" type="bool" gui-text="Enable custom dash pattern">false</param>
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<param name="custom_dasharray" type="bool" gui-text="Enable custom dash pattern">false</param>
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<param name="custom_dasharray_value" type="string" gui-text="Dash pattern" gui-description="A list of separated lengths that specify the lengths of alternating dashes and gaps. Input only accepts numbers. It ignores percentages or other characters.">10 5</param>
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<param name="custom_dasharray_value" type="string" gui-text="Dash pattern" gui-description="A list of separated lengths that specify the lengths of alternating dashes and gaps. Input only accepts numbers. It ignores percentages or other characters.">10 5</param>
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<param name="keep_selected" type="bool" gui-text="Keep selected elements">false</param>
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<param name="keep_selected" type="bool" gui-text="Keep selected elements">false</param>
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<param name="breakapart" type="bool" gui-text="Break apart" gui-description="Performs CTRL + SHIFT + K to break a combined path into it's parts">false</param>
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<param name="breakapart" type="bool" gui-text="Break apart output paths" gui-description="Performs CTRL + SHIFT + K to break the new output path into it's parts">false</param>
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<param name="show_info" type="bool" gui-text="Print some length and pattern information" gui-description="Warning: might freeze InkScape forever if you have a lot of nodes because we create too much print output. Use for debugging only!">false</param>
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<param name="show_info" type="bool" gui-text="Print some length and pattern information" gui-description="Warning: might freeze InkScape forever if you have a lot of nodes because we create too much print output. Use for debugging only!">false</param>
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</page>
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</page>
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<page name="about" gui-text="About">
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<page name="about" gui-text="About">
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@ -24,6 +24,10 @@ It is a modification of the file addnodes.py
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It is a modification of the file convert2dash.py
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It is a modification of the file convert2dash.py
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Extension to convert paths into dash-array line
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Extension to convert paths into dash-array line
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ToDo:
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- better handling of dasharray patterns (fix experimental stuff with multiplicator)
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- dash offset does not behave the exspected way
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- break apart before calculating
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"""
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"""
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import copy
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import copy
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@ -38,22 +42,23 @@ class LinksCreator(inkex.EffectExtension):
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def __init__(self):
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def __init__(self):
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super(LinksCreator, self).__init__()
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super(LinksCreator, self).__init__()
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self.arg_parser.add_argument("--main_tabs")
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self.arg_parser.add_argument("--main_tabs")
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self.arg_parser.add_argument("--path_types", default="closed_paths", help="Apply for closed paths, open paths or both")
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self.arg_parser.add_argument("--unit", default="mm", help="Units")
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self.arg_parser.add_argument("--unit", default="mm", help="Units")
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self.arg_parser.add_argument("--link_count", type=int, default=1, help="Link count")
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self.arg_parser.add_argument("--link_count", type=int, default=1, help="Link count")
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self.arg_parser.add_argument("--link_multiplicator", type=int, default=1, help="If se, we create a set of multiple gaps of same size next to the main gap")
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self.arg_parser.add_argument("--length_link", type=float, default=1.000, help="Link length")
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self.arg_parser.add_argument("--length_link", type=float, default=1.000, help="Link length")
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self.arg_parser.add_argument("--link_offset", type=float, default=0.000, help="Link offset (+/-)")
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self.arg_parser.add_argument("--link_multiplicator", type=int, default=1, help="If set, we create a set of multiple gaps of same size next to the main gap")
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self.arg_parser.add_argument("--link_offset", type=float, default=0.000, help="Link offset (+/-). Does not properly work the intended way if link count is more than 1.")
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self.arg_parser.add_argument("--length_filter", type=inkex.Boolean, default=False, help="Enable path length filtering")
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self.arg_parser.add_argument("--length_filter", type=inkex.Boolean, default=False, help="Enable path length filtering")
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self.arg_parser.add_argument("--length_filter_value", type=float, default=0.000, help="Paths with length more than")
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self.arg_parser.add_argument("--length_filter_value", type=float, default=0.000, help="Paths with length more than")
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self.arg_parser.add_argument("--custom_dasharray", type=inkex.Boolean, default=False, help="Enable custom dash pattern")
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self.arg_parser.add_argument("--custom_dasharray", type=inkex.Boolean, default=False, help="Enable custom dash pattern")
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self.arg_parser.add_argument("--custom_dasharray_value", default="", help="A list of separated lengths that specify the lengths of alternating dashes and gaps. Input only accepts numbers. It ignores percentages or other characters.")
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self.arg_parser.add_argument("--custom_dasharray_value", default="", help="A list of separated lengths that specify the lengths of alternating dashes and gaps. Input only accepts numbers. It ignores percentages or other characters.")
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self.arg_parser.add_argument("--keep_selected", type=inkex.Boolean, default=False, help="Keep selected elements")
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self.arg_parser.add_argument("--keep_selected", type=inkex.Boolean, default=False, help="Keep selected elements")
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self.arg_parser.add_argument("--breakapart", type=inkex.Boolean, default=False, help="Performs CTRL + SHIFT + K to break a combined path into it's parts")
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self.arg_parser.add_argument("--breakapart", type=inkex.Boolean, default=False, help="Performs CTRL + SHIFT + K to break the new output path into it's parts")
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self.arg_parser.add_argument("--show_info", type=inkex.Boolean, default=False, help="Print some length and pattern information")
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self.arg_parser.add_argument("--show_info", type=inkex.Boolean, default=False, help="Print some length and pattern information")
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replacedNodes = []
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def breakContours(self, node, breakNodes = None): #this does the same as "CTRL + SHIFT + K"
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if breakNodes == None:
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def breakContours(self, node): #this does the same as "CTRL + SHIFT + K"
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breakNodes = []
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parent = node.getparent()
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parent = node.getparent()
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idx = parent.index(node)
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idx = parent.index(node)
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idSuffix = 0
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idSuffix = 0
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@ -67,155 +72,181 @@ class LinksCreator(inkex.EffectExtension):
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for subpath in subPaths:
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for subpath in subPaths:
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replacedNode = copy.copy(node)
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replacedNode = copy.copy(node)
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oldId = replacedNode.get('id')
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oldId = replacedNode.get('id')
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replacedNode.set('d', CubicSuperPath(subpath))
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replacedNode.set('d', CubicSuperPath(subpath))
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replacedNode.set('id', oldId + str(idSuffix).zfill(5))
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replacedNode.set('id', oldId + str(idSuffix).zfill(5))
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parent.insert(idx, replacedNode)
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parent.insert(idx, replacedNode)
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idSuffix += 1
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idSuffix += 1
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self.replacedNodes.append(replacedNode)
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breakNodes.append(replacedNode)
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parent.remove(node)
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parent.remove(node)
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for child in node:
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return breakNodes
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self.breakContours(child)
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def effect(self):
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def effect(self):
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if len(self.svg.selected) > 0:
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def createLinks(node):
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for node in self.svg.selection.filter(PathElement).values():
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nodeParent = node.getparent()
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if self.options.keep_selected is True:
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pathIsClosed = False
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parent = node.getparent()
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path = node.path.to_superpath()
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idx = parent.index(node)
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if path[-1][0] == 'Z' or path[0] == path[-1]: #if first is last point the path is also closed. The "Z" command is not required
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copynode = copy.copy(node)
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pathIsClosed = True
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parent.insert(idx, copynode)
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# we measure the length of the path to calculate the required dash configuration
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if self.options.path_types == 'open_paths' and pathIsClosed is True:
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csp = node.path.transform(node.composed_transform()).to_superpath()
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return #skip this loop iteration
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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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elif self.options.path_types == 'closed_paths' and pathIsClosed is False:
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return #skip this loop iteration
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elif self.options.path_types == 'both':
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pass
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if self.options.keep_selected is True:
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parent = node.getparent()
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idx = parent.index(node)
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copynode = copy.copy(node)
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parent.insert(idx, copynode)
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# we measure the length of the path to calculate the required dash configuration
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csp = node.path.transform(node.composed_transform()).to_superpath()
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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 self.options.unit == "percent":
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length_link = (self.options.length_link / 100.0) * stotal
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else:
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length_link = self.svg.unittouu(str(self.options.length_link) + self.options.unit)
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length_link = self.svg.unittouu(str(self.options.length_link) + self.options.unit)
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if self.options.length_filter is True:
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if self.options.length_filter is True:
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if stotal < self.options.length_filter_value:
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if stotal < self.options.length_filter_value:
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if self.options.show_info is True:
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inkex.utils.debug("node " + node.get('id') + " is shorter than minimum allowed length of {:1.3f}. Path length is {:1.3f}".format(self.options.length_filter_value, stotal))
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inkex.utils.debug("node " + node.get('id') + " is shorter than minimum allowed length of {:1.3f}. Path length is {:1.3f}".format(self.options.length_filter_value, stotal))
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break
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return #skip this loop iteration
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'''
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'''
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<dasharray>
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<dasharray>
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A list of comma and/or white space separated <length>s and <percentage>s that specify the lengths of alternating dashes and gaps.
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A list of comma and/or white space separated <length>s and <percentage>s that specify the lengths of alternating dashes and gaps.
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If an odd number of values is provided, then the list of values is repeated to yield an even number of values. Thus, 5,3,2 is equivalent to 5,3,2,5,3,2.
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If an odd number of values is provided, then the list of values is repeated to yield an even number of values. Thus, 5,3,2 is equivalent to 5,3,2,5,3,2.
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If we want three gaps in a path with length of 168.71 mm and a gap length of 2 mm we set the stroke-dasharray to:
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If we want three gaps in a path with length of 168.71 mm and a gap length of 2 mm we set the stroke-dasharray to:
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50.236 2.0 → because 3 * 50.236 mm + 3 * 2.0 mm = 168.71 mm
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50.236 2.0 → because 3 * 50.236 mm + 3 * 2.0 mm = 168.71 mm
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examples having a circle with a circumference of length = 100:
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examples having a circle with a circumference of length = 100:
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- the array "20 5" will create 4 dashes with length = 20 and 4 gaps with length = 5 (20 + 5 + 20 + 5 + 20 + 5 + 20 + 5 = 100)
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- the array "20 5" will create 4 dashes with length = 20 and 4 gaps with length = 5 (20 + 5 + 20 + 5 + 20 + 5 + 20 + 5 = 100)
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- the array "5 20" will create 4 dashes with length = 5 and 4 gaps with length = 20 (5 + 20 + 5 + 20 + 5 + 20 + 5 + 20 = 100)
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- the array "5 20" will create 4 dashes with length = 5 and 4 gaps with length = 20 (5 + 20 + 5 + 20 + 5 + 20 + 5 + 20 = 100)
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- the array "5 15" will create 5 dashes with length = 5 and 5 gaps with length = 15 (5 + 15 + 5 + 15 + 5 + 15 + 5 + 15 + 5 + 15 = 100)
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- the array "5 15" will create 5 dashes with length = 5 and 5 gaps with length = 15 (5 + 15 + 5 + 15 + 5 + 15 + 5 + 15 + 5 + 15 = 100)
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- the array "5 14" will create 6 dashes with length = 5 and 5 gaps with length = 15 (5 + 14 + 5 + 14 + 5 + 14 + 5 + 14 + 5 + 14 + 5 = 100) - the first dash will connect to the last dash fluently
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- the array "5 14" will create 6 dashes with length = 5 and 5 gaps with length = 15 (5 + 14 + 5 + 14 + 5 + 14 + 5 + 14 + 5 + 14 + 5 = 100) - the first dash will connect to the last dash fluently
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in the examples above we always match the full length. But we do not always match it.
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in the examples above we always match the full length. But we do not always match it.
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'''
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'''
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dashes = []
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dashes = []
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dashes.append((stotal - length_link * self.options.link_count) / self.options.link_count)
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dashes.append((stotal - length_link * self.options.link_count) / self.options.link_count)
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dashes.append(length_link)
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dashes.append(length_link)
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for i in range(0, self.options.link_multiplicator):
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for i in range(0, self.options.link_multiplicator):
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dashes.append(length_link) #stroke (=gap)
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dashes.append(length_link) #stroke (=gap)
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dashes.append(length_link) #gap
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dashes.append(length_link) #gap
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if self.options.custom_dasharray is True:
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if self.options.custom_dasharray is True:
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try:
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try:
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floats = [float(dash) for dash in re.findall(r"[-+]?\d*\.\d+|\d+", self.options.custom_dasharray_value)]
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floats = [float(dash) for dash in re.findall(r"[-+]?\d*\.\d+|\d+", self.options.custom_dasharray_value)]
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if len(floats) > 0:
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if len(floats) > 0:
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dashes = floats #overwrite previously calculated values with custom input
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dashes = floats #overwrite previously calculated values with custom input
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else:
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else:
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raise ValueError
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raise ValueError
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except:
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except:
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inkex.errormsg("Error in custom dasharray string (might be empty or does not contain any numbers). Using regular input instead ...")
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inkex.errormsg("Error in custom dasharray string (might be empty or does not contain any numbers). Using regular input instead ...")
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stroke_dasharray = ' '.join(format(dash, "1.3f") for dash in dashes)
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stroke_dasharray = ' '.join(format(dash, "1.3f") for dash in dashes)
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stroke_dashoffset = self.svg.unittouu(str(self.options.link_offset) + self.options.unit)
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stroke_dashoffset = self.svg.unittouu(str(self.options.link_offset) + self.options.unit)
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if self.options.show_info is True:
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if self.options.show_info is True:
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inkex.utils.debug("node " + node.get('id'))
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inkex.utils.debug("node " + node.get('id'))
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inkex.utils.debug("total path length = {:1.3f} {}".format(self.svg.uutounit(stotal, self.options.unit), self.options.unit)) #show length, converted in selected unit
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if self.options.unit == "percent":
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inkex.utils.debug("total gaps = {}".format(self.options.link_count))
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inkex.utils.debug("total path length = {:1.3f} {}".format(stotal, self.svg.unit)) #show length, converted in selected unit
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inkex.utils.debug("(calculated) dash/gap pattern: {} ({})".format(stroke_dasharray, self.options.unit))
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inkex.utils.debug("(calculated) dash offset: {:1.3f} {}".format(self.svg.uutounit(stroke_dashoffset, self.options.unit), self.options.unit))
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inkex.utils.debug("----------------------------------------------------------------")
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# check if the node has a style attribute. If not we create a blank one with a black stroke and without fill
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style = None
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if node.attrib.has_key('style'):
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style = node.get('style')
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if style.endswith(';') is False:
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style += ';'
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# if has style attribute an dasharray and/or dashoffset are present we modify it accordingly
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declarations = style.split(';') # parse the style content and check what we need to adjust
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for i, decl in enumerate(declarations):
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parts = decl.split(':', 2)
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if len(parts) == 2:
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(prop, val) = parts
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prop = prop.strip().lower()
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if prop == 'stroke-dasharray': #comma separated list of one or more float values
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declarations[i] = prop + ':{};'.format(stroke_dasharray)
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if prop == 'stroke-dashoffset':
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declarations[i] = prop + ':{};'.format(stroke_dashoffset)
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node.set('style', ';'.join(declarations)) #apply new style to node
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#if has style attribute but the style attribute does not contain dasharray or dashoffset yet
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style = node.style
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if not 'stroke-dasharray' in style:
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style = style + 'stroke-dasharray:{};'.format(stroke_dasharray)
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if not 'stroke-dashoffset' in style:
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style = style + 'stroke-dashoffset:{};'.format(stroke_dashoffset)
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node.set('style', style)
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else:
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else:
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style = 'fill:none;stroke:#000000;stroke-width:1px;stroke-dasharray:{};stroke-dashoffset:{};'.format(stroke_dasharray, stroke_dashoffset)
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inkex.utils.debug("total path length = {:1.3f} {} ({:1.3f} {})".format(self.svg.uutounit(stotal, self.options.unit), self.options.unit, stotal, self.svg.unit)) #show length, converted in selected unit
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node.set('style', style)
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inkex.utils.debug("total gaps = {}".format(self.options.link_count))
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inkex.utils.debug("(calculated) gap length: {:1.3f} {}".format(length_link, self.options.unit))
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inkex.utils.debug("(calculated) dash/gap pattern: {} ({})".format(stroke_dasharray, self.svg.unit))
|
||||||
|
inkex.utils.debug("(calculated) dash offset: {:1.3f} {}".format(self.svg.uutounit(stroke_dashoffset, self.options.unit), self.options.unit))
|
||||||
|
inkex.utils.debug("--------------------------------------------------------------------------------------------------")
|
||||||
|
|
||||||
style = node.style #get the style again, but this time as style class
|
# check if the node has a style attribute. If not we create a blank one with a black stroke and without fill
|
||||||
|
style = None
|
||||||
|
if node.attrib.has_key('style'):
|
||||||
|
style = node.get('style')
|
||||||
|
if style.endswith(';') is False:
|
||||||
|
style += ';'
|
||||||
|
|
||||||
new = []
|
# if has style attribute an dasharray and/or dashoffset are present we modify it accordingly
|
||||||
for sub in node.path.to_superpath():
|
declarations = style.split(';') # parse the style content and check what we need to adjust
|
||||||
idash = 0
|
for i, decl in enumerate(declarations):
|
||||||
dash = dashes[0]
|
parts = decl.split(':', 2)
|
||||||
length = float(stroke_dashoffset)
|
if len(parts) == 2:
|
||||||
|
(prop, val) = parts
|
||||||
|
prop = prop.strip().lower()
|
||||||
|
if prop == 'stroke-dasharray': #comma separated list of one or more float values
|
||||||
|
declarations[i] = prop + ':{};'.format(stroke_dasharray)
|
||||||
|
if prop == 'stroke-dashoffset':
|
||||||
|
declarations[i] = prop + ':{};'.format(stroke_dashoffset)
|
||||||
|
node.set('style', ';'.join(declarations)) #apply new style to node
|
||||||
|
|
||||||
|
#if has style attribute but the style attribute does not contain dasharray or dashoffset yet
|
||||||
|
style = node.style
|
||||||
|
if not 'stroke-dasharray' in style:
|
||||||
|
style = style + 'stroke-dasharray:{};'.format(stroke_dasharray)
|
||||||
|
if not 'stroke-dashoffset' in style:
|
||||||
|
style = style + 'stroke-dashoffset:{};'.format(stroke_dashoffset)
|
||||||
|
node.set('style', style)
|
||||||
|
else:
|
||||||
|
style = 'fill:none;stroke:#000000;stroke-width:1px;stroke-dasharray:{};stroke-dashoffset:{};'.format(stroke_dasharray, stroke_dashoffset)
|
||||||
|
node.set('style', style)
|
||||||
|
|
||||||
|
style = node.style #get the style again, but this time as style class
|
||||||
|
|
||||||
|
new = []
|
||||||
|
for sub in node.path.to_superpath():
|
||||||
|
idash = 0
|
||||||
|
dash = dashes[0]
|
||||||
|
length = float(stroke_dashoffset)
|
||||||
|
while dash < length:
|
||||||
|
length = length - dash
|
||||||
|
idash = (idash + 1) % len(dashes)
|
||||||
|
dash = dashes[idash]
|
||||||
|
new.append([sub[0][:]])
|
||||||
|
i = 1
|
||||||
|
while i < len(sub):
|
||||||
|
dash = dash - length
|
||||||
|
length = bezier.cspseglength(new[-1][-1], sub[i])
|
||||||
while dash < length:
|
while dash < length:
|
||||||
|
new[-1][-1], nxt, sub[i] = \
|
||||||
|
bezier.cspbezsplitatlength(new[-1][-1], sub[i], dash/length)
|
||||||
|
if idash % 2: # create a gap
|
||||||
|
new.append([nxt[:]])
|
||||||
|
else: # splice the curve
|
||||||
|
new[-1].append(nxt[:])
|
||||||
length = length - dash
|
length = length - dash
|
||||||
idash = (idash + 1) % len(dashes)
|
idash = (idash + 1) % len(dashes)
|
||||||
dash = dashes[idash]
|
dash = dashes[idash]
|
||||||
new.append([sub[0][:]])
|
if idash % 2:
|
||||||
i = 1
|
new.append([sub[i]])
|
||||||
while i < len(sub):
|
else:
|
||||||
dash = dash - length
|
new[-1].append(sub[i])
|
||||||
length = bezier.cspseglength(new[-1][-1], sub[i])
|
i += 1
|
||||||
while dash < length:
|
style.pop('stroke-dasharray')
|
||||||
new[-1][-1], nxt, sub[i] = \
|
node.pop('sodipodi:type')
|
||||||
bezier.cspbezsplitatlength(new[-1][-1], sub[i], dash/length)
|
node.path = CubicSuperPath(new)
|
||||||
if idash % 2: # create a gap
|
node.style = style
|
||||||
new.append([nxt[:]])
|
|
||||||
else: # splice the curve
|
|
||||||
new[-1].append(nxt[:])
|
|
||||||
length = length - dash
|
|
||||||
idash = (idash + 1) % len(dashes)
|
|
||||||
dash = dashes[idash]
|
|
||||||
if idash % 2:
|
|
||||||
new.append([sub[i]])
|
|
||||||
else:
|
|
||||||
new[-1].append(sub[i])
|
|
||||||
i += 1
|
|
||||||
#style.pop('stroke-dasharray')
|
|
||||||
node.pop('sodipodi:type')
|
|
||||||
node.path = CubicSuperPath(new)
|
|
||||||
node.style = style
|
|
||||||
|
|
||||||
if self.options.breakapart is True:
|
if self.options.breakapart is True:
|
||||||
self.breakContours(node)
|
breakOutputNodes = self.breakContours(node)
|
||||||
#update selection to split paths segments (does not work, so commented out)
|
breakApartGroup = nodeParent.add(inkex.Group())
|
||||||
#for replacedNode in self.replacedNodes:
|
for breakOutputNode in breakOutputNodes:
|
||||||
# inkex.utils.debug(replacedNode.get('id'))
|
breakApartGroup.append(breakOutputNode)
|
||||||
# self.svg.selection.set(replacedNode.get('id'))
|
#inkex.utils.debug(replacedNode.get('id'))
|
||||||
|
#self.svg.selection.set(replacedNode.get('id')) #update selection to split paths segments (does not work, so commented out)
|
||||||
|
|
||||||
|
if len(self.svg.selected) > 0:
|
||||||
|
for node in self.svg.selection.filter(PathElement).values():
|
||||||
|
#at first we need to break down combined nodes to single path, otherwise dasharray cannot properly be applied
|
||||||
|
breakInputNodes = self.breakContours(node)
|
||||||
|
for breakInputNode in breakInputNodes:
|
||||||
|
createLinks(breakInputNode)
|
||||||
|
|
||||||
else:
|
else:
|
||||||
inkex.errormsg('Please select some objects first.')
|
inkex.errormsg('Please select some objects first.')
|
||||||
|
|||||||
Reference in New Issue
Block a user