#!/usr/bin/env python3 # SPDX-License-Identifier: GPL-2.0-or-later ''' Roland CutStudio export script Copyright (C) 2014 - 2020 Max Gaukler skeleton based on visicut Inkscape Plugin : Copyright (C) 2012 Thomas Oster, thomas.oster@rwth-aachen.de This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ''' from __future__ import division from __future__ import print_function from __future__ import unicode_literals from __future__ import absolute_import from builtins import open from builtins import map from builtins import str from builtins import range import sys import os from subprocess import Popen import subprocess import shutil import numpy from functools import reduce import inkex import filecmp from pathlib import Path from functools import lru_cache import atexit DEVNULL = open(os.devnull, 'w') atexit.register(DEVNULL.close) def message(s): sys.stderr.write(s+"\n") def debug(s): message(s) # copied from https://github.com/t-oster/roland_eps/blob/0abe785a30d5d5085dd3b5953b38239b1ff83358/tools/inkscape_extension/roland_eps_export.py def which(program, raiseError, extraPaths=[], subdir=None): """ find program in the $PATH environment variable and in $extraPaths. If $subdir is given, also look in the given subdirectory of each $PATH entry. """ pathlist=os.environ["PATH"].split(os.pathsep) if "nt" in os.name: pathlist.append(os.environ.get("ProgramFiles","C:\Program Files\\")) pathlist.append(os.environ.get("ProgramFiles(x86)","C:\Program Files (x86)\\")) pathlist.append("C:\Program Files\\") # needed for 64bit inkscape on 64bit Win7 machines pathlist.append(os.path.dirname(os.path.dirname(os.getcwd()))) # portable application in the current directory pathlist += extraPaths if subdir: pathlist = [os.path.join(p, subdir) for p in pathlist] + pathlist def is_exe(fpath): return os.path.isfile(fpath) and (os.access(fpath, os.X_OK) or fpath.endswith(".exe")) for path in pathlist: exe_file = os.path.join(path, program) if is_exe(exe_file): return exe_file if raiseError: raise Exception("Cannot find " + str(program) + " in any of these paths: " + str(pathlist) + ". Either the program is not installed, PATH is not set correctly, or this is a bug.") else: return None # header # for debugging purposes you can open the resulting EPS file in Inkscape, # select all, ungroup multiple times # --> now you can view the exported lines in inkscape prefix=""" %!PS-Adobe-3.0 EPSF-3.0 %%LanguageLevel: 2 %%BoundingBox -10000 -10000 10000 10000 %%EndComments %%BeginSetup %%EndSetup %%BeginProlog % This code (until EndProlog) is from an inkscape-exported EPS, copyright unknown, see cairo-library save 50 dict begin /q { gsave } bind def /Q { grestore } bind def /cm { 6 array astore concat } bind def /w { setlinewidth } bind def /J { setlinecap } bind def /j { setlinejoin } bind def /M { setmiterlimit } bind def /d { setdash } bind def /m { moveto } bind def /l { lineto } bind def /c { curveto } bind def /h { closepath } bind def /re { exch dup neg 3 1 roll 5 3 roll moveto 0 rlineto 0 exch rlineto 0 rlineto closepath } bind def /S { stroke } bind def /f { fill } bind def /f* { eofill } bind def /n { newpath } bind def /W { clip } bind def /W* { eoclip } bind def /BT { } bind def /ET { } bind def /pdfmark where { pop globaldict /?pdfmark /exec load put } { globaldict begin /?pdfmark /pop load def /pdfmark /cleartomark load def end } ifelse /BDC { mark 3 1 roll /BDC pdfmark } bind def /EMC { mark /EMC pdfmark } bind def /cairo_store_point { /cairo_point_y exch def /cairo_point_x exch def } def /Tj { show currentpoint cairo_store_point } bind def /TJ { { dup type /stringtype eq { show } { -0.001 mul 0 cairo_font_matrix dtransform rmoveto } ifelse } forall currentpoint cairo_store_point } bind def /cairo_selectfont { cairo_font_matrix aload pop pop pop 0 0 6 array astore cairo_font exch selectfont cairo_point_x cairo_point_y moveto } bind def /Tf { pop /cairo_font exch def /cairo_font_matrix where { pop cairo_selectfont } if } bind def /Td { matrix translate cairo_font_matrix matrix concatmatrix dup /cairo_font_matrix exch def dup 4 get exch 5 get cairo_store_point /cairo_font where { pop cairo_selectfont } if } bind def /Tm { 2 copy 8 2 roll 6 array astore /cairo_font_matrix exch def cairo_store_point /cairo_font where { pop cairo_selectfont } if } bind def /g { setgray } bind def /rg { setrgbcolor } bind def /d1 { setcachedevice } bind def %%EndProlog %%Page: 1 1 %%BeginPageSetup %%PageBoundingBox: -10000 -10000 10000 10000 %%EndPageSetup % This is a severely crippled fucked-up pseudo-postscript for importing in Roland CutStudio % Do not even try to open it with something else % FIXME opening with inkscape currently does not show any objects, although it worked some time in the past % Inkscape header, not used by cutstudio % Start q -10000 -10000 10000 10000 rectclip q 0 g 0.286645 w 0 J 0 j [] 0.0 d 4 M q % Cutstudio Start """ postfix=""" % Cutstudio End %this is necessary for CutStudio so that the last line isnt skipped: 0 0 m % Inkscape footer S Q Q Q showpage %%Trailer end restore %%EOF """ class EPS2CutstudioEPS(inkex.OutputExtension): def save(self, stream): def outputFromStack(stack, n, transformCoordinates=True): arr=stack[-(n+1):-1] if transformCoordinates: arrTransformed=[] for i in range(n//2): arrTransformed+=transform(arr[2*i], arr[2*i+1]) return output(arrTransformed+[stack[-1]]) else: return output(arr+[stack[-1]]) def transform(x, y): #debug("trafo from: {} {}".format(x, y)) p=numpy.array([[float(x),float(y),1]]).transpose() multiply = lambda a, b: numpy.matmul(a, b) # concatenate transformations by multiplying: new = transformation x previousTransformtaion m=reduce(multiply, scalingStack[::-1]) m=m.transpose() #debug("with {}".format(m)) pnew = numpy.matmul(m, p) x=float(pnew[0]) y=float(pnew[1]) #debug("to: {} {}".format(x, y)) return [x, y] def toString(v): """ like str(), but gives the exact same output for floats across python2 and python3 """ if isinstance(v, (type(float()), type(int()))): return repr(v) else: return str(v) def outputMoveto(x, y): [xx, yy]=transform(x, y) return output([toString(xx), toString(yy), "m"]) def outputLineto(x, y): [xx, yy]=transform(x, y) return output([toString(xx), toString(yy), "l"]) def output(array): array=list(map(toString, array)) output=" ".join(array) #debug("OUTPUT: "+output) return output + "\n" if os.name=="nt": # windows INKSCAPEBIN = which("inkscape.exe", True, subdir="Inkscape") else: INKSCAPEBIN=which("inkscape", True) filename = self.options.input_file shutil.copyfile(filename, filename+".filtered.svg") cmd = [INKSCAPEBIN, "-T", "--export-ignore-filters", "--export-area-drawing", "--export-filename="+filename+".inkscape.eps", filename+".filtered.svg"] inkscape_eps_file = filename + ".inkscape.eps" assert 0 == subprocess.call(cmd, stderr=DEVNULL), 'EPS conversion failed: command returned error: ' + '"' + '" "'.join(cmd) + '"' assert os.path.exists(inkscape_eps_file), 'EPS conversion failed: command did not create result file: ' + '"' + '" "'.join(cmd) + '"' stack=[] scalingStack=[numpy.identity(3)] lastMoveCoordinates=None outputStr=prefix inputFile=open(inkscape_eps_file) for line in inputFile.readlines(): line=line.strip() if line.startswith("%"): # comment line continue if line.endswith("re W n"): continue # ignore clipping rectangle #debug(line) for item in line.split(" "): item=item.strip() if item=="": continue #debug("INPUT: " + item.__repr__()) stack.append(item) if item=="h": # close path assert lastMoveCoordinates, "closed path before first moveto" outputStr += outputLineto(float(lastMoveCoordinates[0]), float(lastMoveCoordinates[1])) elif item == "c": # bezier curveto outputStr += outputFromStack(stack, 6) stack=[] elif item=="re": # rectangle x=float(stack[-5]) y=float(stack[-4]) dx=float(stack[-3]) dy=float(stack[-2]) outputStr += outputMoveto(x, y) outputStr += outputLineto(x+dx, y) outputStr += outputLineto(x+dx, y+dy) outputStr += outputLineto(x, y+dy) outputStr += outputLineto(x, y) elif item=="cm": # matrix transformation newTrafo=numpy.array([[float(stack[-7]), float(stack[-6]), 0], [float(stack[-5]), float(stack[-4]), 0], [float(stack[-3]), float(stack[-2]), 1]]) #debug("applying trafo "+str(newTrafo)) scalingStack[-1] = numpy.matmul(scalingStack[-1], newTrafo) elif item=="q": # save graphics state to stack scalingStack.append(numpy.identity(3)) elif item=="Q": # pop graphics state from stack scalingStack.pop() elif item in ["m", "l"]: if item=="m": # moveto lastMoveCoordinates=stack[-3:-1] elif item=="l": # lineto pass outputStr += outputFromStack(stack, 2) stack=[] else: pass # do nothing outputStr += postfix inputFile.close() stream.write(outputStr.encode('utf-8')) if __name__ == '__main__': EPS2CutstudioEPS().run()