refactored and rename modify path start node
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@ -1,11 +1,11 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
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<name>Modify Path Start Node</name>
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<id>fablabchemnitz.de.modify_path_start</id>
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<name>Move Path Node</name>
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<id>fablabchemnitz.de.move_path_node</id>
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<param name="tab" type="notebook">
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<page name="tab_settings" gui-text="Modify Path Start Node">
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<param name="closed_only" type="bool" gui-text="Handle closed paths only" gui-description="If disabled we also apply on open (sub)paths. Warning: This REMOVES segments!">true</param>
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<param name="movenode" type="int" min="-99999" max="99999" gui-text="Move starting node n nodes further">0</param>
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<param name="closed_only" type="bool" gui-text="Handle closed paths only" gui-description="If disabled we also apply on open (sub)paths. Warning: This REMOVES segments!">true</param>
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<param name="movenode" type="int" min="-99999" max="99999" gui-text="Move node n nodes further">0</param>
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<param name="visualize_result" type="bool" gui-text="Visualize first two nodes" gui-description="If enabled first two nodes get a number and a dot">false</param>
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<param name="fontsize" type="string" gui-text="Font size:">10px</param>
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<param name="dotsize" type="string" gui-text="Dot size:">10px</param>
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@ -15,12 +15,12 @@
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<label>Use extension "Chain Paths" to make closed paths out of segments.</label>
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</page>
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<page name="tab_about" gui-text="About">
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<label appearance="header">Modify Path Start Node</label>
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<label>Extension to change starting node of a path and visualize it by dots and numbers</label>
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<label appearance="header">Move Path Node</label>
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<label>Extension to change starting / end node of a path and visualize it by dots and numbers. You can also use this extension as a trimmer for open paths.</label>
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<label>2021 / written by Mario Voigt (Stadtfabrikanten e.V. / FabLab Chemnitz)</label>
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<spacer/>
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<label appearance="header">Online Documentation</label>
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<label appearance="url">https://y.stadtfabrikanten.org/modifypathstartnode</label>
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<label appearance="url">https://y.stadtfabrikanten.org/movepathnode</label>
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<spacer/>
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<label appearance="header">Contributing</label>
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<label appearance="url">https://gitea.fablabchemnitz.de/MarioVoigt/mightyscape-1.X</label>
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@ -50,6 +50,6 @@
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</effects-menu>
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</effect>
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<script>
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<command location="inx" interpreter="python">modify_path_start.py</command>
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<command location="inx" interpreter="python">move_path_node.py</command>
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</script>
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</inkscape-extension>
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@ -1,22 +1,18 @@
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#!/usr/bin/env python3
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'''
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Author: Mario Voigt / FabLab Chemnitz
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Mail: mario.voigt@stadtfabrikanten.org
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Date: 19.05.2021
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Last patch: 19.05.2021
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License: GNU GPL v3
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ToDo:
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link for usage: plotting/laser cutting, path unwinding plugin > startpunkt für anwicklung
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'''
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import copy
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import inkex
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from inkex import Circle, TextElement, Path, PathElement, CubicSuperPath
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class ModifyStartDirection(inkex.EffectExtension):
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class MovePathNode(inkex.EffectExtension):
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def modify(self, element):
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raw = element.path.to_arrays()
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@ -27,7 +23,10 @@ class ModifyStartDirection(inkex.EffectExtension):
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prev = i
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subpaths.append(raw[prev:])
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if self.options.debug is True:
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self.msg("Element {} has {} subpath(s)".format(element.get('id'), len(subpaths)))
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if len(subpaths) == 0:
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self.msg("{} has no subpaths").format(element.get('id'))
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else:
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self.msg("{} has {} subpath(s)".format(element.get('id'), len(subpaths)))
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subpathNr = 0
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for path in subpaths:
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@ -43,9 +42,13 @@ class ModifyStartDirection(inkex.EffectExtension):
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if self.options.debug is True:
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self.msg("pathIsClosed = " + str(pathIsClosed))
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self.msg("nodes = " + str(len(path)))
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if self.options.closed_only is True and pathIsClosed is False:
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self.msg("Path {}/subpath {} is not closed!".format(element.get('id'), subpathNr))
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if len(subpaths) == 0:
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self.msg("{}/subpath {} is not closed! Skipping ...".format(element.get('id'), subpathNr))
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else:
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self.msg("{} is not closed! Skipping ...".format(element.get('id')))
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continue #skip this open path
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if path[-1][0] == 'Z': #replace Z with another L command (which moves to the coordinates of the first M command in path) to have better overview
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@ -53,32 +56,32 @@ class ModifyStartDirection(inkex.EffectExtension):
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path[-1][1] = path[0][1]
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#adjust if entered move number is higher than actual node count. We handle as infinite looping
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moves = self.options.movenode % len(path)
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moves = (self.options.movenode - 1) % len(path)
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if pathIsClosed is True: #if closed start and end collapse and "duplicate"
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moves = self.options.movenode % (len(path) - 1)
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moves = (self.options.movenode - 1) % (len(path) - 1)
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if self.options.movenode == 0: #special handling for 0 is required
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moves = 0
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if self.options.debug is True:
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self.msg("moves to perform = " + str(moves))
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self.msg("root path:")
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self.msg(path)
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self.msg("-"*25)
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if self.options.debug is True:
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self.msg("moves = " + str(moves))
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for i in range(moves):
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if len(path) > 2: #the path needs at least more than two nodes
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#we move the first node to the end of the list
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if len(path) > 2: #the path needs at least more than two segments
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#we move the first segment to the end of the list
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move = path[0]
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del path[0]
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path.append(move)
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oldseg = copy.deepcopy(path[0]) #if we assign like "oldseg = path[0]", it will get overwritten. So we need copy
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if self.options.debug is True:
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self.msg("moved path:")
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self.msg("moved path (move no. {}):".format(i+1))
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self.msg(path)
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self.msg("-"*25)
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oldseg = copy.deepcopy(path[0]) #if we assign like "oldseg = path[0]", it will get overwritten. So we need copy
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#Now we messed the integrity of the path. It does not begin with 'M' now. But we need an 'M'.
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#It now either starts with L or C. H, V, Z cannot occure here.
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if path[0][0] == 'C': #and path[-1][0] == 'M':
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@ -108,9 +111,9 @@ class ModifyStartDirection(inkex.EffectExtension):
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self.msg("-"*25)
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newSubpaths[subpathNr - 1] = path
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#else:
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# inkex.utils.debug("More moves entered than possible to apply")
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else:
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inkex.utils.debug("More moves entered than possible to apply")
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composedPath = inkex.Path()
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for newSubpath in newSubpaths:
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composedPath.extend(newSubpath)
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@ -173,4 +176,4 @@ class ModifyStartDirection(inkex.EffectExtension):
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return
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if __name__ == '__main__':
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ModifyStartDirection().run()
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MovePathNode().run()
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