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mightyscape-1.1-deprecated/extensions/fablabchemnitz/fablabchemnitz_lyz_export.py

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#!/usr/bin/env python3
'''
This file output script for Inkscape creates Laser Draw (LaserDRW) LYZ files.
File history:
0.1 Initial code (2/5/2017)
0.2 - Added support for rectangle, circle and ellipse (2/7/2017)
- Added option to automatically convert text to paths
0.3 - Fixed x,y translation when view box is used in SVG file for scaling (2/10/2017)
0.4 - Changed limits in resolution to 100 dpi minimum and 1000 dpi maximum (if you get an out of memory error in LaserDRW try reducing the resolution)
0.5 - Removed some messages that were not needed
- Fixed default resolution in inx files
0.6 - Made compatible with Python 3 and Inkscape 1.0
Copyright (C) 2017-2020 Scorch www.scorchworks.com
Derived from dxf_outlines.py by Aaron Spike and Alvin Penner
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
'''
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import math
import tempfile, os, sys, shutil
from subprocess import Popen, PIPE
import zipfile
import re
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import fablabchemnitz_lyz_inkex as inkex
import fablabchemnitz_lyz_simplestyle as simplestyle
import fablabchemnitz_lyz_simpletransform as simpletransform
import fablabchemnitz_lyz_cubicsuperpath as cubicsuperpath
import fablabchemnitz_lyz_cspsubdiv as cspsubdiv
from fablabchemnitz_lyz_library import LYZ_CLASS
## Subprocess timout stuff ######
from threading import Timer
def run_external(cmd, timeout_sec):
proc = Popen(cmd, stdout=PIPE, stderr=PIPE)
kill_proc = lambda p: p.kill()
timer = Timer(timeout_sec, kill_proc, [proc])
try:
timer.start()
stdout,stderr = proc.communicate()
finally:
timer.cancel()
##################################
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class LYZExport(inkex.Effect):
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def __init__(self):
inkex.Effect.__init__(self)
self.flatness = 0.01
self.lines =[]
self.Cut_Type = {}
self.Xsize=40
self.Ysize=40
self.margin = 2
self.PNG_DATA = None
self.png_area = "--export-area-page"
self.timout = 60 #timeout time for external calls to Inkscape in seconds
self.OptionParser.add_option("--area_select", type="string", default="page_area")
self.OptionParser.add_option("--cut_select", type="string", default="zip")
self.OptionParser.add_option("--resolution", type="int", default=1000)
self.OptionParser.add_option("--margin", type="float", default=2.00)
self.OptionParser.add_option("--inkscape_version", type="int", default=100)
self.OptionParser.add_option("--txt2paths", type="inkbool", default=False)
self.layers = ['0']
self.layer = '0'
self.layernames = []
self.PYTHON_VERSION = sys.version_info[0]
def stream_binary_data(self,filename):
# Change the format for STDOUT to binary to support
# writing the binary output file through STDOUT
if os.name == 'nt': #if sys.platform == "win32":
try:
import msvcrt
#msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(1, os.O_BINARY)
except:
pass
# Open the temporary file for reading
out = open(filename,'rb')
# Send the contents of the temp file to STDOUT
if self.PYTHON_VERSION < 3:
sys.stdout.write(out.read())
else:
sys.stdout.buffer.write(out.read())
out.close()
def output(self):
#create OS temp folder
self.tmp_dir = tempfile.mkdtemp()
if (self.cut_select=="image" ):
LYZ=LYZ_CLASS()
LYZ.setup_new_header()
LYZ.add_png(self.PNG_DATA,self.Xsize,self.Ysize)
LYZ.set_size(self.Xsize+self.margin,self.Ysize+self.margin)
LYZ.set_margin(self.margin)
image_file = os.path.join(self.tmp_dir, "image.lyz")
LYZ.write_file(image_file)
if (self.cut_select=="all" ) or (self.cut_select=="zip" ):
LYZ=LYZ_CLASS()
LYZ.setup_new_header()
LYZ.add_png(self.PNG_DATA,self.Xsize,self.Ysize)
for line in self.lines:
ID=line[7]
if (self.Cut_Type[ID]=="cut") or (self.Cut_Type[ID]=="engrave"):
LYZ.add_line(line[0],line[1],line[2],line[3],0.025)
LYZ.set_size(self.Xsize+self.margin,self.Ysize+self.margin)
LYZ.set_margin(self.margin)
all_file = os.path.join(self.tmp_dir, "all.lyz")
LYZ.write_file(all_file)
if (self.cut_select=="raster" ) or (self.cut_select=="zip" ):
LYZ=LYZ_CLASS()
LYZ.setup_new_header()
LYZ.add_png(self.PNG_DATA,self.Xsize,self.Ysize)
LYZ.set_size(self.Xsize+self.margin,self.Ysize+self.margin)
LYZ.set_margin(self.margin)
raster_file = os.path.join(self.tmp_dir, "01_raster_engrave.lyz")
LYZ.write_file(raster_file)
if (self.cut_select=="vector_red" ) or (self.cut_select=="zip" ):
LYZ=LYZ_CLASS()
LYZ.setup_new_header()
for line in self.lines:
ID=line[7]
if (self.Cut_Type[ID]=="cut"):
LYZ.add_line(line[0],line[1],line[2],line[3],0.025)
LYZ.set_size(self.Xsize+self.margin,self.Ysize+self.margin)
LYZ.set_margin(self.margin)
cut_file = os.path.join(self.tmp_dir, "03_vector_cut.lyz")
LYZ.write_file(cut_file)
if (self.cut_select=="vector_blue" ) or (self.cut_select=="zip" ):
LYZ=LYZ_CLASS()
LYZ.setup_new_header()
for line in self.lines:
ID=line[7]
if (self.Cut_Type[ID]=="engrave"):
LYZ.add_line(line[0],line[1],line[2],line[3],0.025)
LYZ.set_size(self.Xsize+self.margin,self.Ysize+self.margin)
LYZ.set_margin(self.margin)
engrave_file = os.path.join(self.tmp_dir, "02_vector_engrave.lyz")
LYZ.write_file(engrave_file)
if (self.cut_select=="image" ):
self.stream_binary_data(image_file)
if (self.cut_select=="all" ):
self.stream_binary_data(all_file)
if (self.cut_select=="raster" ):
self.stream_binary_data(raster_file)
if (self.cut_select=="vector_red" ):
self.stream_binary_data(cut_file)
if (self.cut_select=="vector_blue"):
self.stream_binary_data(engrave_file)
if (self.cut_select=="zip" ):
# Add image LYZ file? Encode zip file names?
zip_file = os.path.join(self.tmp_dir, "lyz_files.zip")
z = zipfile.ZipFile(zip_file, 'w')
z.write(all_file , os.path.basename(all_file) )
z.write(raster_file , os.path.basename(raster_file) )
z.write(cut_file , os.path.basename(cut_file) )
z.write(engrave_file, os.path.basename(engrave_file))
z.write(sys.argv[-1], "design.svg" )
z.close()
self.stream_binary_data(zip_file)
#Delete the temp folder and file
shutil.rmtree(self.tmp_dir)
def dxf_line(self,csp,pen_width=0.025,color=None,path_id="",layer="none"):
x1 = csp[0][0]
y1 = csp[0][1]
x2 = csp[1][0]
y2 = csp[1][1]
self.lines.append([x1,-y1,x2,-y2,layer,pen_width,color,path_id])
def colmod(self,r,g,b,path_id):
if (r,g,b) ==(255,0,0):
self.Cut_Type[path_id]="cut"
(r,g,b) = (255,255,255)
elif (r,g,b)==(0,0,255):
self.Cut_Type[path_id]="engrave"
(r,g,b) = (255,255,255)
else:
self.Cut_Type[path_id]="raster"
(r,g,b) = (0,0,0)
return '%02x%02x%02x' % (r,g,b)
def process_shape(self, node, mat):
rgb = (0,0,0)
path_id = node.get('id')
style = node.get('style')
self.Cut_Type[path_id]="raster" # Set default type to raster
color_props_fill = ('fill', 'stop-color', 'flood-color', 'lighting-color')
color_props_stroke = ('stroke',)
color_props = color_props_fill + color_props_stroke
#####################################################
## The following is ripped off from Coloreffect.py ##
#####################################################
if style:
declarations = style.split(';')
for i,decl in enumerate(declarations):
parts = decl.split(':', 2)
if len(parts) == 2:
(prop, col) = parts
prop = prop.strip().lower()
#if prop in color_props:
if prop == 'stroke':
col= col.strip()
if simplestyle.isColor(col):
c=simplestyle.parseColor(col)
new_val='#'+self.colmod(c[0],c[1],c[2],path_id)
else:
new_val = col
if new_val != col:
declarations[i] = prop + ':' + new_val
node.set('style', ';'.join(declarations))
#####################################################
if node.tag == inkex.addNS('path','svg'):
d = node.get('d')
if not d:
return
p = cubicsuperpath.parsePath(d)
elif node.tag == inkex.addNS('rect','svg'):
x = float(node.get('x'))
y = float(node.get('y'))
width = float(node.get('width'))
height = float(node.get('height'))
#d = "M %f,%f %f,%f %f,%f %f,%f Z" %(x,y, x+width,y, x+width,y+height, x,y+height)
#p = cubicsuperpath.parsePath(d)
rx = 0.0
ry = 0.0
if node.get('rx'):
rx=float(node.get('rx'))
if node.get('ry'):
ry=float(node.get('ry'))
if max(rx,ry) > 0.0:
if rx==0.0 or ry==0.0:
rx = max(rx,ry)
ry = rx
#msg = "rx = %f ry = %f " %(rx,ry)
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#inkex.errormsg(msg)
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L1 = "M %f,%f %f,%f " %(x+rx , y , x+width-rx , y )
C1 = "A %f,%f 0 0 1 %f,%f" %(rx , ry , x+width , y+ry )
L2 = "M %f,%f %f,%f " %(x+width , y+ry , x+width , y+height-ry)
C2 = "A %f,%f 0 0 1 %f,%f" %(rx , ry , x+width-rx , y+height )
L3 = "M %f,%f %f,%f " %(x+width-rx , y+height , x+rx , y+height )
C3 = "A %f,%f 0 0 1 %f,%f" %(rx , ry , x , y+height-ry)
L4 = "M %f,%f %f,%f " %(x , y+height-ry, x , y+ry )
C4 = "A %f,%f 0 0 1 %f,%f" %(rx , ry , x+rx , y )
d = L1 + C1 + L2 + C2 + L3 + C3 + L4 + C4
else:
d = "M %f,%f %f,%f %f,%f %f,%f Z" %(x,y, x+width,y, x+width,y+height, x,y+height)
p = cubicsuperpath.parsePath(d)
elif node.tag == inkex.addNS('circle','svg'):
cx = float(node.get('cx') )
cy = float(node.get('cy'))
r = float(node.get('r'))
d = "M %f,%f A %f,%f 0 0 1 %f,%f %f,%f 0 0 1 %f,%f %f,%f 0 0 1 %f,%f %f,%f 0 0 1 %f,%f Z" %(cx+r,cy, r,r,cx,cy+r, r,r,cx-r,cy, r,r,cx,cy-r, r,r,cx+r,cy)
p = cubicsuperpath.parsePath(d)
elif node.tag == inkex.addNS('ellipse','svg'):
cx = float(node.get('cx'))
cy = float(node.get('cy'))
rx = float(node.get('rx'))
ry = float(node.get('ry'))
d = "M %f,%f A %f,%f 0 0 1 %f,%f %f,%f 0 0 1 %f,%f %f,%f 0 0 1 %f,%f %f,%f 0 0 1 %f,%f Z" %(cx+rx,cy, rx,ry,cx,cy+ry, rx,ry,cx-rx,cy, rx,ry,cx,cy-ry, rx,ry,cx+rx,cy)
p = cubicsuperpath.parsePath(d)
else:
return
trans = node.get('transform')
if trans:
mat = simpletransform.composeTransform(mat, simpletransform.parseTransform(trans))
simpletransform.applyTransformToPath(mat, p)
###################################################
## Break Curves down into small lines
###################################################
f = self.flatness
is_flat = 0
while is_flat < 1:
try:
cspsubdiv.cspsubdiv(p, f)
is_flat = 1
except IndexError:
break
except:
f += 0.1
if f>2 :
break
#something has gone very wrong.
###################################################
for sub in p:
for i in range(len(sub)-1):
s = sub[i]
e = sub[i+1]
self.dxf_line([s[1],e[1]],0.025,rgb,path_id)
def process_clone(self, node):
trans = node.get('transform')
x = node.get('x')
y = node.get('y')
mat = [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0]]
if trans:
mat = simpletransform.composeTransform(mat, simpletransform.parseTransform(trans))
if x:
mat = simpletransform.composeTransform(mat, [[1.0, 0.0, float(x)], [0.0, 1.0, 0.0]])
if y:
mat = simpletransform.composeTransform(mat, [[1.0, 0.0, 0.0], [0.0, 1.0, float(y)]])
# push transform
if trans or x or y:
self.groupmat.append(simpletransform.composeTransform(self.groupmat[-1], mat))
# get referenced node
refid = node.get(inkex.addNS('href','xlink'))
refnode = self.getElementById(refid[1:])
if refnode is not None:
if refnode.tag == inkex.addNS('g','svg'):
self.process_group(refnode)
elif refnode.tag == inkex.addNS('use', 'svg'):
self.process_clone(refnode)
else:
self.process_shape(refnode, self.groupmat[-1])
# pop transform
if trans or x or y:
self.groupmat.pop()
def process_group(self, group):
if group.get(inkex.addNS('groupmode', 'inkscape')) == 'layer':
style = group.get('style')
if style:
style = simplestyle.parseStyle(style)
if style.has_key('display'):
if style['display'] == 'none' and self.options.layer_option and self.options.layer_option=='visible':
return
layer = group.get(inkex.addNS('label', 'inkscape'))
layer = layer.replace(' ', '_')
if layer in self.layers:
self.layer = layer
trans = group.get('transform')
if trans:
self.groupmat.append(simpletransform.composeTransform(self.groupmat[-1], simpletransform.parseTransform(trans)))
for node in group:
if node.tag == inkex.addNS('g','svg'):
self.process_group(node)
elif node.tag == inkex.addNS('use', 'svg'):
self.process_clone(node)
else:
self.process_shape(node, self.groupmat[-1])
if trans:
self.groupmat.pop()
def Make_PNG(self):
#create OS temp folder
tmp_dir = tempfile.mkdtemp()
svg_temp_file = os.path.join(tmp_dir, "LYZimage.svg")
png_temp_file = os.path.join(tmp_dir, "LYZpngdata.png")
dpi = "%d" %(self.options.resolution)
if self.inkscape_version >= 100:
cmd = [ "inkscape", self.png_area, "--export-dpi", dpi, \
"--export-background","rgb(255, 255, 255)","--export-background-opacity", \
"255" ,"--export-type=png", "--export-filename=%s" %(png_temp_file), svg_temp_file ]
else:
cmd = [ "inkscape", self.png_area, "--export-dpi", dpi, \
"--export-background","rgb(255, 255, 255)","--export-background-opacity", \
"255" ,"--export-png", png_temp_file, svg_temp_file ]
if (self.cut_select=="raster") or (self.cut_select=="all") or (self.cut_select=="zip"):
self.document.write(svg_temp_file)
#cmd = [ "inkscape", self.png_area, "--export-dpi", dpi, "--export-background","rgb(255, 255, 255)","--export-background-opacity", "255" ,"--export-png", png_temp_file, svg_temp_file ]
#p = Popen(cmd, stdout=PIPE, stderr=PIPE)
#stdout, stderr = p.communicate()
run_external(cmd, self.timout)
else:
shutil.copyfile(sys.argv[-1], svg_temp_file)
#cmd = [ "inkscape", self.png_area, "--export-dpi", dpi, "--export-background","rgb(255, 255, 255)","--export-background-opacity", "255" ,"--export-png", png_temp_file, svg_temp_file ]
#p = Popen(cmd, stdout=PIPE, stderr=PIPE)
#stdout, stderr = p.communicate()
run_external(cmd, self.timout)
try:
with open(png_temp_file, 'rb') as f:
self.PNG_DATA = f.read()
except:
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inkex.errormsg("PNG generation timed out.\nTry saving again.\n\n")
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#Delete the temp folder and any files
shutil.rmtree(tmp_dir)
def unit2mm(self, string):
# Returns mm given a string representation of units in another system
# a dictionary of unit to user unit conversion factors
uuconv = {'in': 25.4,
'pt': 25.4/72.0,
'px': 25.4/self.inkscape_dpi,
'mm': 1.0,
'cm': 10.0,
'm' : 1000.0,
'km': 1000.0*1000.0,
'pc': 25.4/6.0,
'yd': 25.4*12*3,
'ft': 25.4*12}
unit = re.compile('(%s)$' % '|'.join(uuconv.keys()))
param = re.compile(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)')
p = param.match(string)
u = unit.search(string)
if p:
retval = float(p.string[p.start():p.end()])
else:
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inkex.errormsg("Size was not determined returning zero value")
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retval = 0.0
if u:
retunit = u.string[u.start():u.end()]
else:
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inkex.errormsg("units not understood assuming px at %d dpi" %(self.inkscape_dpi))
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retunit = 'px'
try:
return retval * uuconv[retunit]
except KeyError:
return retval
def effect(self):
msg = ""
#area_select = self.options.area_select # "page_area", "object_area"
area_select = "page_area"
self.cut_select = self.options.cut_select # "vector_red", "vector_blue", "raster", "all", "image", "Zip"
self.margin = self.options.margin # float value
#self.inkscape_dpi = self.options.inkscape_dpi # float value
self.inkscape_version = self.options.inkscape_version # float value
self.txt2paths = self.options.txt2paths # boolean Value
if self.inkscape_version > 91:
self.inkscape_dpi = 96
else:
self.inkscape_dpi = 90
if (self.txt2paths):
#create OS temp folder
tmp_dir = tempfile.mkdtemp()
txt2path_file = os.path.join(tmp_dir, "txt2path.svg")
if self.inkscape_version >= 100:
cmd = [ "inkscape", "--export-text-to-path","--export-plain-svg", "--export-filename=%s" %(txt2path_file), sys.argv[-1] ]
else:
cmd = [ "inkscape", "--export-text-to-path","--export-plain-svg",txt2path_file, sys.argv[-1] ]
run_external(cmd, self.timout)
self.document.parse(txt2path_file)
#Delete the temp folder and any files
shutil.rmtree(tmp_dir)
h_uu = self.svg.unittouu(self.document.getroot().xpath('@height', namespaces=inkex.NSS)[0])
w_uu = self.svg.unittouu(self.document.getroot().xpath('@width' , namespaces=inkex.NSS)[0])
h_mm = self.unit2mm(self.document.getroot().xpath('@height', namespaces=inkex.NSS)[0])
w_mm = self.unit2mm(self.document.getroot().xpath('@width', namespaces=inkex.NSS)[0])
try:
view_box_str = self.document.getroot().xpath('@viewBox', namespaces=inkex.NSS)[0]
view_box_list = view_box_str.split(' ')
Wpix = float(view_box_list[2])
Hpix = float(view_box_list[3])
scale = h_mm/Hpix
Dx = float(view_box_list[0]) / ( float(view_box_list[2])/w_mm )
Dy = float(view_box_list[1]) / ( float(view_box_list[3])/h_mm )
except:
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#inkex.errormsg("Using Default Inkscape Scale")
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scale = 25.4/self.inkscape_dpi
Dx = 0
Dy = 0
for node in self.document.getroot().xpath('//svg:g', namespaces=inkex.NSS):
if node.get(inkex.addNS('groupmode', 'inkscape')) == 'layer':
layer = node.get(inkex.addNS('label', 'inkscape'))
self.layernames.append(layer.lower())
# if self.options.layer_name and self.options.layer_option and self.options.layer_option=='name' and not layer.lower() in self.options.layer_name:
# continue
layer = layer.replace(' ', '_')
if layer and not layer in self.layers:
self.layers.append(layer)
#self.groupmat = [[[scale, 0.0, 0.0], [0.0, -scale, h_mm]]]
self.groupmat = [[[scale, 0.0, 0.0-Dx],
[0.0 , -scale, h_mm+Dy]]]
#doc = self.document.getroot()
self.process_group(self.document.getroot())
#################################################
# msg = msg + self.getDocumentUnit() + "\n"
# msg = msg + "scale = %f\n" %(scale)
msg = msg + "Height(mm)= %f\n" %(h_mm)
msg = msg + "Width (mm)= %f\n" %(w_mm)
# msg = msg + "h_uu = %f\n" %(h_uu)
# msg = msg + "w_uu = %f\n" %(w_uu)
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#inkex.errormsg(msg)
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if (area_select=="object_area"):
self.png_area = "--export-area-drawing"
xmin= self.lines[0][0]+0.0
xmax= self.lines[0][0]+0.0
ymin= self.lines[0][1]+0.0
ymax= self.lines[0][1]+0.0
for line in self.lines:
x1= line[0]
y1= line[1]
x2= line[2]
y2= line[3]
xmin = min(min(xmin,x1),x2)
ymin = min(min(ymin,y1),y2)
xmax = max(max(xmax,x1),x2)
ymax = max(max(ymax,y1),y2)
else:
self.png_area = "--export-area-page"
xmin= 0.0
xmax= w_mm
ymin= -h_mm
ymax= 0.0
self.Xsize=xmax-xmin
self.Ysize=ymax-ymin
Xcenter=(xmax+xmin)/2.0
Ycenter=(ymax+ymin)/2.0
for ii in range(len(self.lines)):
self.lines[ii][0] = self.lines[ii][0]-Xcenter
self.lines[ii][1] = self.lines[ii][1]-Ycenter
self.lines[ii][2] = self.lines[ii][2]-Xcenter
self.lines[ii][3] = self.lines[ii][3]-Ycenter
if (self.cut_select=="raster") or \
(self.cut_select=="all" ) or \
(self.cut_select=="image" ) or \
(self.cut_select=="zip" ):
self.Make_PNG()
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LYZExport().affect()