def main(filein, fileout, width, height, gap):
d = dxfgrabber.read(filein)
def flipxy(p):
return (p[1], p[0])
layers = {}
for r in d.entities:
if not r.layer in layers:
layers[r.layer] = []
layers[r.layer].append(map(flipxy, r.points))
polys_to_cut = []
for (_, ps) in layers.iteritems():
polys_to_cut += map(lambda p: geo.extend_poly(gap, p, False), ps)
h = height / 2.0
w = width / 2.0
gndplane = Polygon([(h, w), (-h, w), (-h, -w), (h, -w)])
for p in polys_to_cut:
gndplane = gndplane - Polygon(p)
# Polygon.triStrip() returns a list of tristrips which need to be
# turned into quads, and the list needs to be flattened.
layers["GROUND"] = [
quad for quads in map(
geo.tristrip_to_quads,
gndplane.triStrip())
for quad in quads]
drawing = DXFEngine.drawing(fileout)
for (l, qs) in layers.iteritems():
for q in qs:
drawing.add(DXFEngine.face3d(map(flipxy, q), layer=l))
drawing.save()
def parse(self, dxfInput, forced_unit):
dxfStream = io.StringIO(str(dxfInput.replace('\r\n', '\n')))
dwg = dxfgrabber.read(dxfStream)
if not dwg:
raise RuntimeError("dxfgrabber.read() failed")
# TODO: check DXF version to see if INSUNITS is expected
# TODO: try and guess mm vs in based on max x/y
# set up unit conversion
#
# 0 unitless
# 1 inches
# 2 feet
# 3 miles
# 4 mm
# 5 cm
# 6 m
# 7 km
# 8 microinches
# 9 mils
# 10 yards
# 11 angstroms
# 12 nanometeres
# 13 microns
# 14 decimeters
# 15 decameters
# 16 hectometers
# 17 gigameters
# 18 au
# 19 light years
# 20 parsecs
if forced_unit == 0 or forced_unit == None:
self.units = dwg.header.setdefault('$INSUNITS', 0)
else:
print(("using forced_unit", forced_unit))
self.units = forced_unit
if self.verbose:
print(("dxf units read %s, default 0 " % self.units))
if self.units == 0:
self.unitsString = "unitless"
elif self.units == 1:
self.unitsString = "inches"
elif self.units == 2:
self.unitsString = "feet"
elif self.units == 3:
self.unitsString = "miles"
elif self.units == 4:
self.unitsString = "mm"
elif self.units == 5:
self.unitsString = "cm"
elif self.units == 6:
self.unitsString = "m"
elif self.units == 7:
self.unitsString = "km"
elif self.units == 8:
self.unitsString = "microinch"
elif self.units == 9:
self.unitsString = "mils"
elif self.units == 10:
self.unitsString = "yards"
elif self.units == 11:
self.unitsString = "angstroms"
elif self.units == 12:
self.unitsString = "nanometers"
elif self.units == 13:
self.unitsString = "microns"
elif self.units == 14:
self.unitsString = "decimeters"
elif self.units == 15:
self.unitsString = "decameters"
elif self.units == 16:
self.unitsString = "hectometers"
elif self.units == 17:
self.unitsString = "gigameters"
elif self.units == 18:
self.unitsString = "astronomical units"
elif self.units == 19:
self.unitsString = "light years"
elif self.units == 20:
self.unitsString = "parsecs"
else:
print(("DXF units: >%s< unsupported" % self.units))
raise RuntimeError
if self.verbose:
print(("dxfgrabber release: ", self.dxfgrabber_version))
print(("DXF file format version: {}".format(dwg.dxfversion)))
print(("header var count: ", len(dwg.header)))
print(("layer count: ", len(dwg.layers)))
print(("block def count: ", len(dwg.blocks)))
print(("entitiy count: ", len(dwg.entities)))
print(("units: ", self.unitsString))
for entity in dwg.entities:
if entity.color == dxfgrabber.BYLAYER:
layer = dwg.layers[entity.layer]
entity.color = layer.color
if self.debug:
print(("set entity color to layer color %d" % layer.color))
if entity.dxftype == "LINE":
self.addLine(entity)
elif entity.dxftype == "ARC":
self.addArc(entity)
elif entity.dxftype == "CIRCLE":
self.addCircle(entity)
elif entity.dxftype == "LWPOLYLINE":
self.addPolyLine(entity)
elif entity.dxftype == "SPLINE":
print(("TODO ADD: ", entity.dxftype))
#self.addSpline(entity)
else:
if self.verbose:
print(("unknown entity: ", entity.dxftype))
print("Done!")
if self.verbose:
print("pre flipped")
print(("x min %f" % self.x_min))
print(("x max %f" % self.x_max))
print(("y min %f" % self.y_min))
print(("y max %f" % self.y_max))
# remember that Y is in negative space relative to our bed,
# CAD software has 0,0 and bottom left, lasersaur has
# it at top left.
if self.x_min < 0 or self.y_max > -self.bedwidth[1]:
if self.verbose:
print("doing shiftPositive")
self.shiftPositive()
self.validateBoundaries()
self.returnColorLayers = {}
for color in self.colorLayers:
if len(self.colorLayers[color]) > 0:
if self.debug:
print(("returning color ", color))
self.returnColorLayers[color] = self.colorLayers[color]
# format: {'#ff0000': [[[x,y], [x,y], ...], [], ..], '#0000ff':[]}
job = {'head': {}, 'passes': [], 'items': [], 'defs': []}
#job['units'] = self.unitsString
for color, path in self.returnColorLayers.items():
job['defs'].append({"kind": "path", "data": path})
job['items'].append({"def": len(job['defs']) - 1, "color": color})
print("Done!")
return job
def loads(data, filename=None):
if sys.version_info.major == 2:
data = unicode(data)
stream = io.StringIO(data)
dxf = dxfgrabber.read(stream)
return DxfFile.from_dxf(dxf)
def parse(self, dxfInput, forced_unit):
dxfStream = io.StringIO(unicode(dxfInput.replace('\r\n','\n')))
dwg = dxfgrabber.read(dxfStream)
if not dwg:
raise RuntimeError("dxfgrabber.read() failed")
# TODO: check DXF version to see if INSUNITS is expected
# TODO: try and guess mm vs in based on max x/y
# set up unit conversion
#
# 0 unitless
# 1 inches
# 2 feet
# 3 miles
# 4 mm
# 5 cm
# 6 m
# 7 km
# 8 microinches
# 9 mils
# 10 yards
# 11 angstroms
# 12 nanometeres
# 13 microns
# 14 decimeters
# 15 decameters
# 16 hectometers
# 17 gigameters
# 18 au
# 19 light years
# 20 parsecs
if forced_unit == 0 or forced_unit == None:
self.units = dwg.header.setdefault('$INSUNITS', 0)
else:
print("using forced_unit", forced_unit)
self.units = forced_unit
if self.verbose:
print("dxf units read %s, default 0 " % self.units)
if self.units == 0:
self.unitsString = "unitless"
elif self.units == 1:
self.unitsString = "inches"
elif self.units == 2:
self.unitsString = "feet"
elif self.units == 3:
self.unitsString = "miles"
elif self.units == 4:
self.unitsString = "mm"
elif self.units == 5:
self.unitsString = "cm"
elif self.units == 6:
self.unitsString = "m"
elif self.units == 7:
self.unitsString = "km"
elif self.units == 8:
self.unitsString = "microinch"
elif self.units == 9:
self.unitsString = "mils"
elif self.units == 10:
self.unitsString = "yards"
elif self.units == 11:
self.unitsString = "angstroms"
elif self.units == 12:
self.unitsString = "nanometers"
elif self.units == 13:
self.unitsString = "microns"
elif self.units == 14:
self.unitsString = "decimeters"
elif self.units == 15:
self.unitsString = "decameters"
elif self.units == 16:
self.unitsString = "hectometers"
elif self.units == 17:
self.unitsString = "gigameters"
elif self.units == 18:
self.unitsString = "astronomical units"
elif self.units == 19:
self.unitsString = "light years"
elif self.units == 20:
self.unitsString = "parsecs"
else:
print("DXF units: >%s< unsupported" % self.units)
raise RuntimeError
if self.verbose:
print("dxfgrabber release: ", self.dxfgrabber_version)
print("DXF file format version: {}".format(dwg.dxfversion))
print("header var count: ", len(dwg.header))
print("layer count: ", len(dwg.layers))
print("block def count: ", len(dwg.blocks))
print("entitiy count: ", len(dwg.entities))
print("units: ", self.unitsString)
for entity in dwg.entities:
if entity.color == dxfgrabber.BYLAYER:
layer = dwg.layers[entity.layer]
entity.color = layer.color
if self.debug:
print("set entity color to layer color %d" % layer.color)
if entity.dxftype == "LINE":
self.addLine(entity)
elif entity.dxftype == "ARC":
self.addArc(entity)
elif entity.dxftype == "CIRCLE":
self.addCircle(entity)
elif entity.dxftype == "LWPOLYLINE":
self.addPolyLine(entity)
elif entity.dxftype == "SPLINE":
print("TODO ADD: ", entity.dxftype)
#self.addSpline(entity)
else:
if self.verbose:
print("unknown entity: ", entity.dxftype)
print "Done!"
if self.verbose:
print ("pre flipped");
print ("x min %f" % self.x_min)
print ("x max %f" % self.x_max)
print ("y min %f" % self.y_min)
print ("y max %f" % self.y_max)
# remember that Y is in negative space relative to our bed,
# CAD software has 0,0 and bottom left, lasersaur has
# it at top left.
if self.x_min < 0 or self.y_max > -self.bedwidth[1]:
if self.verbose:
print("doing shiftPositive")
self.shiftPositive()
self.validateBoundaries()
self.returnColorLayers = {}
for color in self.colorLayers:
if len(self.colorLayers[color]) > 0:
if self.debug:
print ("returning color ", color)
self.returnColorLayers[color] = self.colorLayers[color]
# format: {'#ff0000': [[[x,y], [x,y], ...], [], ..], '#0000ff':[]}
job = {'head':{}, 'passes':[], 'items':[], 'defs':[]}
#job['units'] = self.unitsString
for color, path in self.returnColorLayers.iteritems():
job['defs'].append({"kind":"path",
"data":path})
job['items'].append({"def":len(job['defs'])-1, "color":color})
print "Done!"
return job
def parse(self, dxfInput, forced_unit):
dxfStream = io.StringIO(unicode(dxfInput.replace('\r\n','\n')))
dwg = dxfgrabber.read(dxfStream)
if not dwg:
print ("DXFGRABBER FAIL")
raise ValueError
# TODO: check DXF version to see if INSUNITS is expected
# TODO: try and guess mm vs in based on max x/y
# set up unit conversion
if forced_unit == 0 or forced_unit == None:
self.units = dwg.header.setdefault('$INSUNITS', 0)
else:
print("using forced_unit", forced_unit)
self.units = forced_unit
if self.verbose:
print("dxf units read %s, default 0 " % self.units)
if self.units == 0:
self.unitsString = "unitless"
elif self.units == 1:
self.unitsString = "inches"
elif self.units == 4:
self.unitsString = "mm"
else:
print("DXF units: >%s< unsupported" % self.units)
raise ValueError
if self.verbose:
print("DXF version: {}".format(dwg.dxfversion))
print("header var count: ", len(dwg.header))
print("layer count: ", len(dwg.layers))
print("block def count: ", len(dwg.blocks))
print("entitiy count: ", len(dwg.entities))
print("units: ", self.unitsString)
for entity in dwg.entities:
if entity.color == dxfgrabber.BYLAYER:
layer = dwg.layers[entity.layer]
entity.color = layer.color
if self.debug:
print("set entity color to layer color %d" % layer.color)
if entity.dxftype == "LINE":
self.addLine(entity)
elif entity.dxftype == "ARC":
self.addArc(entity)
elif entity.dxftype == "CIRCLE":
self.addCircle(entity)
elif entity.dxftype == "LWPOLYLINE":
self.addPolyLine(entity)
elif entity.dxftype == "SPLINE":
print("TODO ADD: ", entity.dxftype)
#self.addSpline(entity)
else:
if self.verbose:
print("unknown entity: ", entity.dxftype)
print "Done!"
if self.verbose:
print ("pre flipped");
print ("x min %f" % self.x_min)
print ("x max %f" % self.x_max)
print ("y min %f" % self.y_min)
print ("y max %f" % self.y_max)
if self.x_min < 0 or self.y_max > -self.bedwidth[1]:
if self.verbose:
print("doing shiftPositive")
self.shiftPositive()
self.validateBoundaries()
self.returnColorLayers = {}
for color in self.colorLayers:
if len(self.colorLayers[color]) > 0:
if self.debug:
print ("returning color ", color)
self.returnColorLayers[color] = self.colorLayers[color]
#TODO: teach the UI to report units read in the file
return {'boundaries':self.returnColorLayers, 'units':self.unitsString}
def Interpret(dxf, VERBOSE=False, origin=[0,0], colorOrder=None):
drawing = dxfgrabber.read(dxf)
Container = []
validEnts = ['POINT','LINE', 'LWPOLYLINE','ARC','CIRCLE','ELLIPSE','SPLINE']
#
#LETS SORT BY ALL OF THE COLORS
#
for entity in drawing.entities:
if entity.dxftype in validEnts:
newColor = True
for cg in Container:
if entity.color == cg.color:
if VERBOSE:
print str(entity.color) + ' paths belong in ' + str(cg.color) + ' cutgroups.'
cg.entities.append(entity)
newColor = False
if newColor:
cg = cutGroup()
cg.color = entity.color
Container.append(cg)
if VERBOSE:
print str(entity.color) + ' paths belong in ' + str(cg.color) + ' cutgroups.'
cg.entities.append(entity)
#Finding all the start and end points
startEnd(Container)
#Reordering the container by color
#TEST# colorOrder = [256,6,1,6]
if colorOrder:
colorOrder.reverse()
for color in colorOrder:
for cg in Container:
if cg.color == color:
Container.insert(0,Container.pop(Container.index(cg)))
#
#LETS OPTIMIZE THE TOOL PATH
#Start at start point.
#On each color, find path of least jogging.
#
print 'origin: ' + str(origin)
startPoint = origin
output = {}
output['groups'] = []
for cg in Container:
startPoint, cg = optimize(startPoint, cg)
cg_out = {}
cg_out['gcode'] = gcode(cg)
cg_out['color'] = cg.color
output['groups'].append(cg_out)
print 'endpoint: ' + str(startPoint)
#LETS ACTUALLY WRITE OUT A PROGRAM
return output
'''
def parse(self, dxfInput):
dxfStripped = dxfInput.replace('\r\n','\n')
dxfStream = io.StringIO(unicode(dxfStripped.replace('\r\n','\n')))
infile = dxfgrabber.read(dxfStream)
if not infile:
print ("DXFGRABBER FAIL")
raise ValueError
# set up unit conversion
self.units = infile.header.setdefault('$INSUNITS', 1)
if self.units == 0:
self.unitsString = "undefined, assuming inches"
elif self.units == 1:
self.unitsString = "inches"
elif self.units == 4:
self.unitsString = "mm"
else:
print("DXF units: ", self.units, " unsupported")
raise ValueError
if self.debug:
print("DXF version: {}".format(infile.dxfversion))
print("header var count: ", len(infile.header))
print("layer count: ", len(infile.layers))
print("block def count: ", len(infile.blocks))
print("entitiy count: ", len(infile.entities))
print("units: ", self.unitsString)
#Iterate through and print layers name
global Layer_names
Layer_names = infile.layers.names()
if self.debug:
print("Layer Names: ", Layer_names)
i = 1
n = len(infile.layers)
while i < n:
print("iter value:", i)
print("layer name: ", Layer_names[i])
i = i + 1
for entity in infile.entities:
if entity.dxftype == "LINE":
if self.debug:
print("Line Entity")
print("Entity Layer:", entity.layer)
self.addLine(entity)
elif entity.dxftype == "ARC":
if self.debug:
print("Arc Entity")
print("Entity Layer:", entity.layer)
self.addArc(entity)
elif entity.dxftype == "CIRCLE":
if self.debug:
print("Circle Entity")
print("Entity Layer:", entity.layer)
self.addCircle(entity)
elif entity.dxftype == "LWPOLYLINE":
if self.debug:
print("LWPolyLine Entity")
print("Entity Layer:", entity.layer)
self.addPolyLine(entity)
elif entity.dxftype == "SPLINE":
if self.debug:
print("Spline Entity")
print("Entity Layer:", entity.layer)
print("TODO ADD: ", entity.dxftype)
#self.addSpline(entity)
else:
if self.debug:
print("unknown entity: ", entity.dxftype)
print("Entity Layer:", entity.layer)
print "Done!"
#TODO: teach the UI to report units read in the file
#return {'boundarys':self.returnColorLayers, 'units':self.unitsString}
#Original snippets from stefanif dxfreader
return {'boundarys':self.boundarys}
