202 lines
8.8 KiB
Python
202 lines
8.8 KiB
Python
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#!/usr/bin/env python3
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"""
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Extension for InkScape 1.2
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CutOptim OS Wrapper script to make CutOptim work on Windows and Linux systems without duplicating .inx files
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Author: Mario Voigt / FabLab Chemnitz
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Mail: mario.voigt@stadtfabrikanten.org
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Date: 31.08.2020
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Last patch: 03.11.2022
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License: GNU GPL v3
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"""
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import inkex
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import sys
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import re
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import os
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import subprocess
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from lxml import etree
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from copy import deepcopy
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import tempfile
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from inkex.command import inkscape, inkscape_command
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class CuttingOptimizer(inkex.EffectExtension):
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def openDebugFile(self, file):
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DETACHED_PROCESS = 0x00000008
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if os.name == 'nt':
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subprocess.Popen(["explorer", file], close_fds=True, creationflags=DETACHED_PROCESS, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL).wait()
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else:
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subprocess.Popen(["xdg-open", file], close_fds=True, start_new_session=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL).wait()
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def add_arguments(self, pars):
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args = sys.argv[1:]
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for arg in args:
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key=arg.split("=")[0]
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if len(arg.split("=")) == 2:
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value=arg.split("=")[1]
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try:
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if key != "--id":
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pars.add_argument(key, default=key)
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except:
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pass #ignore duplicate id arg
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def effect(self):
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extension_dir = os.path.dirname(os.path.realpath(__file__))
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cmd = []
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if os.name == "nt":
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cutoptim = os.path.join(extension_dir, "CutOptim.exe")
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else:
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cutoptim = os.path.join(extension_dir, "CutOptim")
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cmd.append(cutoptim)
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elements = self.svg.selected
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if len(elements) > 0: #if selection is existing, then we export only selected items to a new svg, which is then going to be processed. Otherwise we process the whole SVG document
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extra_param = None
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template = self.svg.copy()
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for child in template.getchildren():
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if child.tag == '{http://www.w3.org/2000/svg}defs':
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continue
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template.remove(child)
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group = etree.SubElement(template, '{http://www.w3.org/2000/svg}g')
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group.attrib['id'] = 'export_selection_transform'
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for element in self.svg.selected.values():
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elem_copy = deepcopy(element)
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elem_copy.attrib['transform'] = str(element.composed_transform())
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elem_copy.attrib['style'] = str(element.specified_style())
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group.append(elem_copy)
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template.attrib['viewBox'] = self.svg.attrib['viewBox']
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template.attrib['width'] = self.svg.attrib['width']
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template.attrib['height'] = self.svg.attrib['height']
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template.append(group)
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svg_out = os.path.join(tempfile.gettempdir(), self.svg.get_unique_id("selection") + '.svg')
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with open(svg_out, 'wb') as fp:
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fp.write(template.tostring())
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actions_list=[]
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actions_list.append("SelectionUnGroup")
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actions_list.append("export-type:svg")
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actions_list.append("export-filename:{}".format(svg_out))
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actions_list.append("export-do")
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actions = ";".join(actions_list)
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cli_output = inkscape(svg_out, extra_param, actions=actions) #process recent file
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if len(cli_output) > 0:
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self.msg("Inkscape returned the following output when trying to run the file export; the file export may still have worked:")
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self.msg(cli_output)
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layerSum = 0
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layer_output_0 = False
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cancel_on_error = False
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for arg in vars(self.options):
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argval = str(getattr(self.options, arg))
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if arg not in ("tab", "output", "ids", "selected_nodes", "print_cmd"):
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#inkex.utils.debug(str(arg) + " = " + str(getattr(self.options, arg)))
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#fix behaviour of "original" arg which does not correctly gets interpreted if set to false
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if arg == "original" and argval == "false":
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continue
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if arg == "input_file":
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cmd.append("--file")
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if len(elements) > 0:
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cmd.append(svg_out)
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else:
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cmd.append(argval)
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elif arg == "layer_output_0":
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if argval == "true":
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layerSum += 0
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layer_output_0 = True
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#elif arg == "layer_output_1":
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# if argval == "true": layerSum += 1
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elif arg == "layer_output_2":
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if argval == "true": layerSum += 2
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elif arg == "layer_output_4":
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if argval == "true": layerSum += 4
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elif arg == "layer_output_8":
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if argval == "true": layerSum += 8
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elif arg == "layer_output_16":
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if argval == "true": layerSum += 16
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elif arg == "cancel_on_error":
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if argval == "true": cancel_on_error = True
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else:
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cmd.append("--{}={}".format(arg, argval))
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cmd.append("--layer_output")
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cmd.append("{}".format(layerSum))
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if layerSum == 0 and layer_output_0 is False:
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inkex.utils.debug("You need to enable at least one type of layer to continue!")
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output_file = None
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if os.name == "nt":
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output_file = "cutoptim.svg"
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else:
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output_file = "/tmp/cutoptim.svg"
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if os.path.exists(output_file):
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try:
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os.remove(output_file)
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except OSError as e:
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pass
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cmd.append("--output")
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cmd.append(output_file)
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# run CutOptim with the parameters provided
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if self.options.print_cmd == "true":
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inkex.utils.debug("The following command would be executed on shell:\n")
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inkex.utils.debug(" ".join(cmd))
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exit(0)
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else:
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=False) as cutoptim:
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cutoptim.wait()
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stdout, stderr = cutoptim.communicate()
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#inkex.utils.debug("stdout:\n{}".format(stdout.decode('UTF-8')))
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errors = stderr.decode('UTF-8')
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if len(errors) > 0:
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inkex.utils.debug("Errors occured:\n{}".format(errors))
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if len(errors) > 0 and cancel_on_error is True:
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inkex.utils.debug("Maybe enlarge your document size in case not all polygons could be placed and try again! Nesting was cancelled!")
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exit(1)
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# check output existence
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try:
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stream = open(output_file, 'r')
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except FileNotFoundError as e:
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inkex.utils.debug("There was no SVG output generated. Cannot continue. Command was:\n")
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inkex.utils.debug(" ".join(cmd))
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exit(1)
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if self.options.original == "false": #we need to use string representation of bool
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for element in self.document.getroot():
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if isinstance(element, inkex.ShapeElement):
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element.delete()
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if self.options.debug_file == "true": #we need to use string representation of bool
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self.openDebugFile("Debug_CutOptim.txt")
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# write the generated SVG into Inkscape's canvas
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doc = etree.parse(stream, parser=etree.XMLParser(huge_tree=True))
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stream.close()
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group = inkex.Group(id="CutOptim")
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'''
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0 = Placed_Layer
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1 = Original_Layer (Input Layer) <> see "Keep original layer"
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2 = Polygon_Layer
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4 = Large_Polygon_Layer
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8 = Hull_Placed_Layer
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16 = Placed_Polygon_Layer
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'''
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if layer_output_0 is False:
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l0 = None
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else:
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l0 = doc.xpath('//svg:g[@inkscape:label="Placed_Layer"]', namespaces=inkex.NSS)
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#l1 = doc.xpath('//svg:g[@inkscape:label="Original_Layer"]', namespaces=inkex.NSS)
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l2 = doc.xpath('//svg:g[@inkscape:label="Polygon_Layer"]', namespaces=inkex.NSS)
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l4 = doc.xpath('//svg:g[@inkscape:label="Large_Polygon_Layer"]', namespaces=inkex.NSS)
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l8 = doc.xpath('//svg:g[@inkscape:label="Hull_Placed_Layer"]', namespaces=inkex.NSS)
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l16 = doc.xpath('//svg:g[@inkscape:label="Placed_Polygon_Layer"]', namespaces=inkex.NSS)
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for layer in (l0, l2, l4, l8, l16): #,l1
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if layer is not None and len(layer) > 0:
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for element in layer:#[0].getchildren():
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group.append(element)
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self.document.getroot().append(group)
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if __name__ == '__main__':
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CuttingOptimizer().run()
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