added purge pointy paths extension
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1264a864bc
commit
8fcc0cbf64
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@ -36,8 +36,8 @@ class DrawBBoxes(inkex.EffectExtension):
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def effect(self):
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if len(self.svg.selected) > 0:
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if self.options.split is False:
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for id, item in self.svg.selected.items():
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self.drawBBox(item.bounding_box())
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for element in self.svg.selected.values():
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self.drawBBox(element.bounding_box())
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else:
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#self.drawBBox(self.svg.get_selected_bbox()) #works for InkScape (1:1.0+devel+202008292235+eff2292935) @ Linux and for Windows (but with deprecation)
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self.drawBBox(self.svg.selection.bounding_box()) #works for InkScape 1.1dev (9b1fc87, 2020-08-27)) @ Windows
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@ -1,4 +1,4 @@
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#!/usr/bin/env python
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#!/usr/bin/env python3
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# coding=utf-8
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#
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# Copyright (C) 2005,2007 Aaron Spike, aaron@ekips.org
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@ -76,7 +76,7 @@ class LinksCreator(inkex.EffectExtension):
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if raw[i][0] == 'M' and i != 0:
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subPaths.append(raw[prev:i])
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prev = i
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subPaths.append(raw[prev:])
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subPaths.append(raw[prev:])
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for subpath in subPaths:
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replacedNode = copy.copy(node)
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oldId = replacedNode.get('id')
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@ -139,7 +139,7 @@ class LinksCreator(inkex.EffectExtension):
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if self.options.switch_pattern is True:
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dashes = dashes[::-1] #reverse the array
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#validate dashes. May not be negative. Otherwise Inkscape will freeze forever. Reason: rendering issue
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#validate dashes. May not be negative (dash or gap cannot be longer than the path itself). Otherwise Inkscape will freeze forever. Reason: rendering issue
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if any(dash <= 0.0 for dash in dashes) == True:
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if self.options.show_info is True: self.msg("node " + node.get('id') + ": Error! Dash array may not contain negative numbers: " + ' '.join(format(dash, "1.3f") for dash in dashes) + ". Path skipped. Maybe it's too short. Adjust your link count, multiplicator and length accordingly, or set to unit '%'")
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return False if self.options.skip_errors is True else exit(1)
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@ -267,11 +267,10 @@ class LinksCreator(inkex.EffectExtension):
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dash = dash - length
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length = bezier.cspseglength(new[-1][-1], sub[i])
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while dash < length:
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new[-1][-1], nxt, sub[i] = \
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bezier.cspbezsplitatlength(new[-1][-1], sub[i], dash/length)
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if idash % 2: # create a gap
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new[-1][-1], nxt, sub[i] = bezier.cspbezsplitatlength(new[-1][-1], sub[i], dash/length)
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if idash % 2: # create a gap
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new.append([nxt[:]])
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else: # splice the curve
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else: # splice the curve
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new[-1].append(nxt[:])
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length = length - dash
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idash = (idash + 1) % len(dashes)
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@ -283,22 +282,44 @@ class LinksCreator(inkex.EffectExtension):
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i += 1
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style.pop('stroke-dasharray')
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node.pop('sodipodi:type')
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csp = CubicSuperPath(new)
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node.path = CubicSuperPath(new)
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node.style = style
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# break apart the combined path to have multiple elements
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if self.options.breakapart is True:
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breakOutputNodes = self.breakContours(node)
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breakOutputNodes = None
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breakOutputNodes = self.breakContours(node, breakOutputNodes)
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breakApartGroup = nodeParent.add(inkex.Group())
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for breakOutputNode in breakOutputNodes:
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breakApartGroup.append(breakOutputNode)
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#self.msg(replacedNode.get('id'))
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#self.svg.selection.set(replacedNode.get('id')) #update selection to split paths segments (does not work, so commented out)
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#cleanup useless points
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p = breakOutputNode.path
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commandsCoords = p.to_arrays()
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# "m 45.250809,91.692739" - this path contains onyl one command - a single point
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if len(commandsCoords) == 1:
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breakOutputNode.delete()
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# "m 45.250809,91.692739 z" - this path contains two commands, but only one coordinate.
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# It's a single point, the path is closed by a Z command
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elif len(commandsCoords) == 2 and commandsCoords[0][1] == commandsCoords[1][1]:
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breakOutputNode.delete()
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# "m 45.250809,91.692739 l 45.250809,91.692739" - this path contains two commands,
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# but the first and second coordinate are the same. It will render als point
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elif len(commandsCoords) == 2 and commandsCoords[-1][0] == 'Z':
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breakOutputNode.delete()
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# "m 45.250809,91.692739 l 45.250809,91.692739 z" - this path contains three commands,
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# but the first and second coordinate are the same. It will render als point, the path is closed by a Z command
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elif len(commandsCoords) == 3 and commandsCoords[0][1] == commandsCoords[1][1] and commandsCoords[2][1] == 'Z':
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breakOutputNode.delete()
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if len(self.svg.selected) > 0:
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for node in self.svg.selection.values():
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#at first we need to break down combined nodes to single path, otherwise dasharray cannot properly be applied
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breakInputNodes = self.breakContours(node)
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breakInputNodes = None
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breakInputNodes = self.breakContours(node, breakInputNodes)
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for breakInputNode in breakInputNodes:
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createLinks(breakInputNode)
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else:
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@ -0,0 +1,16 @@
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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>Purge Pointy Paths</name>
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<id>fablabchemnitz.de.purge_pointy_paths</id>
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<effect>
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<object-type>path</object-type>
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<effects-menu>
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<submenu name="FabLab Chemnitz">
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<submenu name="Nesting/Cut Optimization"/>
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</submenu>
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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">purge_pointy_paths.py</command>
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</script>
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</inkscape-extension>
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@ -0,0 +1,49 @@
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#!/usr/bin/env python3
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"""
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This filter deletes paths which render as point only
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More usesless and/or redundant filters for removing duplicate nodes and segments are provided by the following extension:
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- https://stadtfabrikanten.org/display/IFM/Purge+Duplicate+Path+Segments
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- https://stadtfabrikanten.org/display/IFM/Purge+Duplicate+Path+Nodes
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Extension for InkScape 1.X
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Author: Mario Voigt / FabLab Chemnitz
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Mail: mario.voigt@stadtfabrikanten.org
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Date: 21.04.2021
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Last patch: 21.04.2021
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License: GNU GPL v3
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"""
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import inkex
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from lxml import etree
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class PurgeInvalidPaths(inkex.EffectExtension):
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def effect(self):
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if len(self.svg.selected) > 0:
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for element in self.svg.selected.values():
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if isinstance(element, inkex.PathElement):
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p = element.path
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commandsCoords = p.to_arrays()
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# "m 45.250809,91.692739" - this path contains onyl one command - a single point
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if len(commandsCoords) == 1:
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element.delete()
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# "m 45.250809,91.692739 z" - this path contains two commands, but only one coordinate.
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# It's a single point, the path is closed by a Z command
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elif len(commandsCoords) == 2 and commandsCoords[0][1] == commandsCoords[1][1]:
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element.delete()
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# "m 45.250809,91.692739 l 45.250809,91.692739" - this path contains two commands,
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# but the first and second coordinate are the same. It will render als point
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elif len(commandsCoords) == 2 and commandsCoords[-1][0] == 'Z':
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element.delete()
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# "m 45.250809,91.692739 l 45.250809,91.692739 z" - this path contains three commands,
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# but the first and second coordinate are the same. It will render als point, the path is closed by a Z command
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elif len(commandsCoords) == 3 and commandsCoords[0][1] == commandsCoords[1][1] and commandsCoords[2][1] == 'Z':
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element.delete()
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else:
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inkex.errormsg('Please select some objects first.')
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return
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if __name__ == '__main__':
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PurgeInvalidPaths().run()
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@ -59,9 +59,9 @@ class RemoveRedundant(inkex.EffectExtension):
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seenSegments = set()
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coordsCache = FixedRadiusSearch()
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for id, node in self.svg.selected.items():
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if node.tag == inkex.addNS('path','svg'):
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d = node.get('d')
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for element in self.svg.selected.values():
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if element.tag == inkex.addNS('path','svg'):
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d = element.get('d')
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path = paths.CubicSuperPath(d).to_path().to_arrays()
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newPath = []
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start = prev = None
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@ -117,7 +117,7 @@ class RemoveRedundant(inkex.EffectExtension):
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newPath.append([command, coords])
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while len(newPath) and newPath[-1][0] == 'M':
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newPath = newPath[:-1]
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node.set('d',str(paths.Path(newPath)))
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element.set('d',str(paths.Path(newPath)))
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if __name__ == '__main__':
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RemoveRedundant().run()
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