DXF-exporter script moved from addons_contrib to official addons folder

4 files changed, 1087 insertions, 0 deletions

diff --git a/io_export_dxf/model/__init__.py b/io_export_dxf/model/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/io_export_dxf/model/__init__.py
diff --git a/io_export_dxf/model/dxfLibrary.py b/io_export_dxf/model/dxfLibrary.py
new file mode 100644
index 00000000..c1730d4d
--- /dev/null
+++ b/io_export_dxf/model/dxfLibrary.py
@@ -0,0 +1,927 @@
+#dxfLibrary.py : provides functions for generating DXF files
+# --------------------------------------------------------------------------
+__version__ = "v1.35 - 2010.06.23"
+__author__ = "Stani Michiels(Stani), Remigiusz Fiedler(migius)"
+__license__ = "GPL"
+__url__ = "http://wiki.blender.org/index.php/Extensions:2.4/Py/Scripts/Export/DXF"
+__bpydoc__ ="""The library to export geometry data to DXF format r12 version.
+
+Copyright %s
+Version %s
+License %s
+Homepage %s
+
+See the homepage for documentation.
+Dedicated thread on BlenderArtists: http://blenderartists.org/forum/showthread.php?t=136439
+
+IDEAs:
+-
+
+TODO:
+- add support for DXFr14 version (needs extended file header)
+- add support for DXF-SPLINEs (possible first in DXFr14 version)
+- add support for DXF-MTEXT
+- add user preset for floating point precision (3-16?)
+
+History
+v1.35 - 2010.06.23 by migius
+ - added (as default) writing to DXF file without RAM-buffering: faster and low-RAM-machines friendly
+v1.34 - 2010.06.20 by migius
+ - bugfix POLYFACE
+ - added DXF-flags for POLYLINE and VERTEX class (NURBS-export)
+v1.33 - 2009.07.03 by migius
+ - fix MTEXT newline bug (not supported by DXF-Exporter yet)
+ - modif _point(): converts all coords to floats
+ - modif LineType class: implement elements
+ - added VPORT class, incl. defaults
+ - fix Insert class
+v1.32 - 2009.06.06 by migius
+ - modif Style class: changed defaults to widthFactor=1.0, obliqueAngle=0.0
+ - modif Text class: alignment parameter reactivated
+v1.31 - 2009.06.02 by migius
+ - modif _Entity class: added paperspace,elevation
+v1.30 - 2009.05.28 by migius
+ - bugfix 3dPOLYLINE/POLYFACE: VERTEX needs x,y,z coordinates, index starts with 1 not 0
+v1.29 - 2008.12.28 by Yorik
+ - modif POLYLINE to support bulge segments
+v1.28 - 2008.12.13 by Steeve/BlenderArtists
+ - bugfix for EXTMIN/EXTMAX to suit Cycas-CAD
+v1.27 - 2008.10.07 by migius
+ - beautifying output code: keys whitespace prefix
+ - refactoring DXF-strings format: NewLine moved to the end of
+v1.26 - 2008.10.05 by migius
+ - modif POLYLINE to support POLYFACE
+v1.25 - 2008.09.28 by migius
+ - modif FACE class for r12
+v1.24 - 2008.09.27 by migius
+ - modif POLYLINE class for r12
+ - changing output format from r9 to r12(AC1009)
+v1.1 (20/6/2005) by www.stani.be/python/sdxf
+ - Python library to generate dxf drawings
+______________________________________________________________
+""" % (__author__,__version__,__license__,__url__)
+
+# --------------------------------------------------------------------------
+# DXF Library: copyright (C) 2005 by Stani Michiels (AKA Stani)
+#                       2008/2009 modif by Remigiusz Fiedler (AKA migius)
+# --------------------------------------------------------------------------
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# 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.
+#
+# ***** END GPL LICENCE BLOCK *****
+
+
+#import Blender
+#from Blender import Mathutils, Window, Scene, sys, Draw
+#import BPyMessages
+
+try:
+	import copy
+	#from struct import pack
+except:
+	copy = None
+
+####1) Private (only for developpers)
+_HEADER_POINTS=['insbase','extmin','extmax']
+
+#---helper functions-----------------------------------
+def _point(x,index=0):
+	"""Convert tuple to a dxf point"""
+	return '\n'.join([' %s\n%s'%((i+1)*10+index,float(x[i])) for i in range(len(x))])
+
+def _points(plist):
+	"""Convert a list of tuples to dxf points"""
+	out = '\n'.join([_point(plist[i],i)for i in range(len(plist))])
+	return out
+
+#---base classes----------------------------------------
+class _Call:
+	"""Makes a callable class."""
+	def copy(self):
+		"""Returns a copy."""
+		return copy.deepcopy(self)
+
+	def __call__(self,**attrs):
+		"""Returns a copy with modified attributes."""
+		copied=self.copy()
+		for attr in attrs:setattr(copied,attr,attrs[attr])
+		return copied
+
+#-------------------------------------------------------
+class _Entity(_Call):
+	"""Base class for _common group codes for entities."""
+	def __init__(self,paperspace=None,color=None,layer='0',
+				 lineType=None,lineTypeScale=None,lineWeight=None,
+				 extrusion=None,elevation=None,thickness=None,
+				 parent=None):
+		"""None values will be omitted."""
+		self.paperspace	  = paperspace
+		self.color		  = color
+		self.layer		  = layer
+		self.lineType	   = lineType
+		self.lineTypeScale  = lineTypeScale
+		self.lineWeight	 = lineWeight
+		self.extrusion	  = extrusion
+		self.elevation	  = elevation
+		self.thickness	  = thickness
+		#self.visible	  = visible
+		self.parent		 = parent
+
+	def _common(self):
+		"""Return common group codes as a string."""
+		if self.parent:parent=self.parent
+		else:parent=self
+		result =''
+		if parent.paperspace==1: result+='  67\n1\n'
+		if parent.layer!=None: result+='  8\n%s\n'%parent.layer
+		if parent.color!=None: result+=' 62\n%s\n'%parent.color
+		if parent.lineType!=None: result+='  6\n%s\n'%parent.lineType
+		# TODO: if parent.lineWeight!=None: result+='370\n%s\n'%parent.lineWeight
+		# TODO: if parent.visible!=None: result+='60\n%s\n'%parent.visible
+		if parent.lineTypeScale!=None: result+=' 48\n%s\n'%parent.lineTypeScale
+		if parent.elevation!=None: result+=' 38\n%s\n'%parent.elevation
+		if parent.thickness!=None: result+=' 39\n%s\n'%parent.thickness
+		if parent.extrusion!=None: result+='%s\n'%_point(parent.extrusion,200)
+		return result
+
+#--------------------------
+class _Entities:
+	"""Base class to deal with composed objects."""
+	def __dxf__(self):
+		return []
+
+	def __str__(self):
+		return ''.join([str(x) for x in self.__dxf__()])
+
+#--------------------------
+class _Collection(_Call):
+	"""Base class to expose entities methods to main object."""
+	def __init__(self,entities=[]):
+		self.entities=copy.copy(entities)
+		#link entities methods to drawing
+		for attr in dir(self.entities):
+			if attr[0]!='_':
+				attrObject=getattr(self.entities,attr)
+				if callable(attrObject):
+					setattr(self,attr,attrObject)
+
+####2) Constants
+#---color values
+BYBLOCK=0
+BYLAYER=256
+
+#---block-type flags (bit coded values, may be combined):
+ANONYMOUS =1  # This is an anonymous block generated by hatching, associative dimensioning, other internal operations, or an application
+NON_CONSTANT_ATTRIBUTES =2  # This block has non-constant attribute definitions (this bit is not set if the block has any attribute definitions that are constant, or has no attribute definitions at all)
+XREF =4  # This block is an external reference (xref)
+XREF_OVERLAY =8  # This block is an xref overlay
+EXTERNAL =16 # This block is externally dependent
+RESOLVED =32 # This is a resolved external reference, or dependent of an external reference (ignored on input)
+REFERENCED =64 # This definition is a referenced external reference (ignored on input)
+
+#---mtext flags
+#attachment point
+TOP_LEFT = 1
+TOP_CENTER = 2
+TOP_RIGHT = 3
+MIDDLE_LEFT = 4
+MIDDLE_CENTER = 5
+MIDDLE_RIGHT	= 6
+BOTTOM_LEFT = 7
+BOTTOM_CENTER = 8
+BOTTOM_RIGHT = 9
+#drawing direction
+LEFT_RIGHT = 1
+TOP_BOTTOM = 3
+BY_STYLE = 5 #the flow direction is inherited from the associated text style
+#line spacing style (optional):
+AT_LEAST = 1 #taller characters will override
+EXACT = 2 #taller characters will not override
+
+#---polyline flag 70
+CLOSED =1	  # This is a closed polyline (or a polygon mesh closed in the M direction)
+CURVE_FIT =2	  # Curve-fit vertices have been added
+SPLINE_FIT =4	  # Spline-fit vertices have been added
+POLYLINE_3D =8	  # This is a 3D polyline
+POLYGON_MESH =16	 # This is a 3D polygon mesh
+CLOSED_N =32	 # The polygon mesh is closed in the N direction
+POLYFACE_MESH =64	 # The polyline is a polyface mesh
+CONTINOUS_LINETYPE_PATTERN =128	# The linetype pattern is generated continuously around the vertices of this polyline
+
+#---polyline flag 75, = curve type
+QUADRIC_NURBS = 5
+CUBIC_NURBS = 6
+BEZIER_CURVE = 8
+
+
+#---text flags
+#horizontal
+LEFT = 0
+CENTER = 1
+RIGHT = 2
+ALIGNED = 3 #if vertical alignment = 0
+MIDDLE = 4 #if vertical alignment = 0
+FIT = 5 #if vertical alignment = 0
+#vertical
+BASELINE = 0
+BOTTOM	= 1
+MIDDLE = 2
+TOP = 3
+
+####3) Classes
+#---entitities -----------------------------------------------
+#--------------------------
+class Arc(_Entity):
+	"""Arc, angles in degrees."""
+	def __init__(self,center=(0,0,0),radius=1,
+				 startAngle=0.0,endAngle=90,**common):
+		"""Angles in degrees."""
+		_Entity.__init__(self,**common)
+		self.center=center
+		self.radius=radius
+		self.startAngle=startAngle
+		self.endAngle=endAngle
+	def __str__(self):
+		return '  0\nARC\n%s%s\n 40\n%s\n 50\n%s\n 51\n%s\n'%\
+			   (self._common(),_point(self.center),
+				self.radius,self.startAngle,self.endAngle)
+
+#-----------------------------------------------
+class Circle(_Entity):
+	"""Circle"""
+	def __init__(self,center=(0,0,0),radius=1,**common):
+		_Entity.__init__(self,**common)
+		self.center=center
+		self.radius=radius
+	def __str__(self):
+		return '  0\nCIRCLE\n%s%s\n 40\n%s\n'%\
+			   (self._common(),_point(self.center),self.radius)
+
+#-----------------------------------------------
+class Face(_Entity):
+	"""3dface"""
+	def __init__(self,points,**common):
+		_Entity.__init__(self,**common)
+		while len(points)<4: #fix for r12 format
+			points.append(points[-1])
+		self.points=points
+		
+	def __str__(self):
+		out = '  0\n3DFACE\n%s%s\n' %(self._common(),_points(self.points))
+		return out
+
+#-----------------------------------------------
+class Insert(_Entity):
+	"""Block instance."""
+	def __init__(self,name,point=(0,0,0),
+				 xscale=None,yscale=None,zscale=None,
+				 cols=None,colspacing=None,rows=None,rowspacing=None,
+				 rotation=None,
+				 **common):
+		_Entity.__init__(self,**common)
+		self.name=name
+		self.point=point
+		self.xscale=xscale
+		self.yscale=yscale
+		self.zscale=zscale
+		self.cols=cols
+		self.colspacing=colspacing
+		self.rows=rows
+		self.rowspacing=rowspacing
+		self.rotation=rotation
+
+	def __str__(self):
+		result='  0\nINSERT\n  2\n%s\n%s%s\n'%\
+				(self.name,self._common(),_point(self.point))
+		if self.xscale!=None:result+=' 41\n%s\n'%self.xscale
+		if self.yscale!=None:result+=' 42\n%s\n'%self.yscale
+		if self.zscale!=None:result+=' 43\n%s\n'%self.zscale
+		if self.rotation:result+=' 50\n%s\n'%self.rotation
+		if self.cols!=None:result+=' 70\n%s\n'%self.cols
+		if self.colspacing!=None:result+=' 44\n%s\n'%self.colspacing
+		if self.rows!=None:result+=' 71\n%s\n'%self.rows
+		if self.rowspacing!=None:result+=' 45\n%s\n'%self.rowspacing
+		return result
+
+#-----------------------------------------------
+class Line(_Entity):
+	"""Line"""
+	def __init__(self,points,**common):
+		_Entity.__init__(self,**common)
+		self.points=points
+	def __str__(self):
+		return '  0\nLINE\n%s%s\n' %(
+				self._common(), _points(self.points))
+
+
+#-----------------------------------------------
+class PolyLine(_Entity):
+	def __init__(self,points,org_point=[0,0,0],flag70=0,flag75=0,width=None,**common):
+		#width = number, or width = list [width_start=None, width_end=None]
+		#for 2d-polyline: points = [ [[x, y, z], vflag=None, [width_start=None, width_end=None], bulge=0 or None] ...]
+		#for 3d-polyline: points = [ [[x, y, z], vflag=None], ...]
+		#for polyface: points = [points_list, faces_list]
+		_Entity.__init__(self,**common)
+		self.points=points
+		self.org_point=org_point
+		self.pflag70 = flag70
+		self.pflag75 = flag75
+		self.polyface = False
+		self.polyline2d = False
+		self.faces = [] # dummy value
+		self.width= None # dummy value
+		if self.pflag70 & POLYFACE_MESH:
+			self.polyface=True
+			self.points=points[0]
+			self.faces=points[1]
+			self.p_count=len(self.points)
+			self.f_count=len(self.faces)
+		elif not (self.pflag70 & POLYLINE_3D):
+			self.polyline2d = True
+			if width:
+				if type(width)!='list':  width=[width,width]
+				self.width=width
+
+	def __str__(self):
+		result= '  0\nPOLYLINE\n%s 70\n%s\n' %(self._common(),self.pflag70)
+		result+=' 66\n1\n'
+		result+='%s\n' %_point(self.org_point)
+		if self.polyface:
+			result+=' 71\n%s\n' %self.p_count
+			result+=' 72\n%s\n' %self.f_count
+		elif self.polyline2d:
+			if self.width!=None: result+=' 40\n%s\n 41\n%s\n' %(self.width[0],self.width[1])
+		if self.pflag75:
+			result+=' 75\n%s\n' %self.pflag75
+		for point in self.points:
+			result+='  0\nVERTEX\n'
+			result+='  8\n%s\n' %self.layer
+			if self.polyface:
+				result+='%s\n' %_point(point)
+				result+=' 70\n192\n'
+			elif self.polyline2d:
+				result+='%s\n' %_point(point[0])
+				flag = point[1]
+				if len(point)>2:
+					[width1, width2] = point[2]
+					if width1!=None: result+=' 40\n%s\n' %width1
+					if width2!=None: result+=' 41\n%s\n' %width2
+				if len(point)==4:
+					bulge = point[3]
+					if bulge: result+=' 42\n%s\n' %bulge
+				if flag:
+						result+=' 70\n%s\n' %flag
+			else:
+				result+='%s\n' %_point(point[0])
+				flag = point[1]
+				if flag:
+						result+=' 70\n%s\n' %flag
+
+		for face in self.faces:
+			result+='  0\nVERTEX\n'
+			result+='  8\n%s\n' %self.layer
+			result+='%s\n' %_point(self.org_point)
+			result+=' 70\n128\n'
+			result+=' 71\n%s\n' %face[0]
+			result+=' 72\n%s\n' %face[1]
+			result+=' 73\n%s\n' %face[2]
+			if len(face)==4: result+=' 74\n%s\n' %face[3]
+		result+='  0\nSEQEND\n'
+		result+='  8\n%s\n' %self.layer
+		return result
+
+#-----------------------------------------------
+class Point(_Entity):
+	"""Point."""
+	def __init__(self,points=None,**common):
+		_Entity.__init__(self,**common)
+		self.points=points
+	def __str__(self): # TODO:
+		return '  0\nPOINT\n%s%s\n' %(self._common(),
+			 _points(self.points)
+			)
+
+#-----------------------------------------------
+class Solid(_Entity):
+	"""Colored solid fill."""
+	def __init__(self,points=None,**common):
+		_Entity.__init__(self,**common)
+		self.points=points
+	def __str__(self):
+		return '  0\nSOLID\n%s%s\n' %(self._common(),
+			 _points(self.points[:2]+[self.points[3],self.points[2]])
+			)
+
+
+#-----------------------------------------------
+class Text(_Entity):
+	"""Single text line."""
+	def __init__(self,text='',point=(0,0,0),alignment=None,
+				 flag=None,height=1,justifyhor=None,justifyver=None,
+				 rotation=None,obliqueAngle=None,style=None,xscale=None,**common):
+		_Entity.__init__(self,**common)
+		self.text=text
+		self.point=point
+		self.alignment=alignment
+		self.flag=flag
+		self.height=height
+		self.justifyhor=justifyhor
+		self.justifyver=justifyver
+		self.rotation=rotation
+		self.obliqueAngle=obliqueAngle
+		self.style=style
+		self.xscale=xscale
+	def __str__(self):
+		result= '  0\nTEXT\n%s%s\n 40\n%s\n  1\n%s\n'%\
+				(self._common(),_point(self.point),self.height,self.text)
+		if self.rotation: result+=' 50\n%s\n'%self.rotation
+		if self.xscale: result+=' 41\n%s\n'%self.xscale
+		if self.obliqueAngle: result+=' 51\n%s\n'%self.obliqueAngle
+		if self.style: result+='  7\n%s\n'%self.style
+		if self.flag: result+=' 71\n%s\n'%self.flag
+		if self.justifyhor: result+=' 72\n%s\n'%self.justifyhor
+		if self.alignment: result+='%s\n'%_point(self.alignment,1)
+		if self.justifyver: result+=' 73\n%s\n'%self.justifyver
+		return result
+
+#-----------------------------------------------
+class Mtext(Text):
+	"""Surrogate for mtext, generates some Text instances."""
+	def __init__(self,text='',point=(0,0,0),width=250,spacingFactor=1.5,down=0,spacingWidth=None,**options):
+		Text.__init__(self,text=text,point=point,**options)
+		if down:spacingFactor*=-1
+		self.spacingFactor=spacingFactor
+		self.spacingWidth=spacingWidth
+		self.width=width
+		self.down=down
+	def __str__(self):
+		texts=self.text.replace('\r\n','\n').split('\n')
+		if not self.down:texts.reverse()
+		result=''
+		x=y=0
+		if self.spacingWidth:spacingWidth=self.spacingWidth
+		else:spacingWidth=self.height*self.spacingFactor
+		for text in texts:
+			while text:
+				result+='%s' %Text(text[:self.width],
+					point=(self.point[0]+x*spacingWidth,
+						   self.point[1]+y*spacingWidth,
+						   self.point[2]),
+					alignment=self.alignment,flag=self.flag,height=self.height,
+					justifyhor=self.justifyhor,justifyver=self.justifyver,
+					rotation=self.rotation,obliqueAngle=self.obliqueAngle,
+					style=self.style,xscale=self.xscale,parent=self
+				)
+				text=text[self.width:]
+				if self.rotation:x+=1
+				else:y+=1
+		return result[1:]
+
+#-----------------------------------------------
+##class _Mtext(_Entity):
+	"""Mtext not functioning for minimal dxf."""
+	"""
+	def __init__(self,text='',point=(0,0,0),attachment=1,
+				 charWidth=None,charHeight=1,direction=1,height=100,rotation=0,
+				 spacingStyle=None,spacingFactor=None,style=None,width=100,
+				 xdirection=None,**common):
+		_Entity.__init__(self,**common)
+		self.text=text
+		self.point=point
+		self.attachment=attachment
+		self.charWidth=charWidth
+		self.charHeight=charHeight
+		self.direction=direction
+		self.height=height
+		self.rotation=rotation
+		self.spacingStyle=spacingStyle
+		self.spacingFactor=spacingFactor
+		self.style=style
+		self.width=width
+		self.xdirection=xdirection
+	def __str__(self):
+		input=self.text
+		text=''
+		while len(input)>250:
+			text+='3\n%s\n'%input[:250]
+			input=input[250:]
+		text+='1\n%s\n'%input
+		result= '0\nMTEXT\n%s\n%s\n40\n%s\n41\n%s\n71\n%s\n72\n%s%s\n43\n%s\n50\n%s\n'%\
+				(self._common(),_point(self.point),self.charHeight,self.width,
+				 self.attachment,self.direction,text,
+				 self.height,
+				 self.rotation)
+		if self.style:result+='7\n%s\n'%self.style
+		if self.xdirection:result+='%s\n'%_point(self.xdirection,1)
+		if self.charWidth:result+='42\n%s\n'%self.charWidth
+		if self.spacingStyle:result+='73\n%s\n'%self.spacingStyle
+		if self.spacingFactor:result+='44\n%s\n'%self.spacingFactor
+		return result
+	"""
+
+
+#---tables ---------------------------------------------------
+#-----------------------------------------------
+class Block(_Collection):
+	"""Use list methods to add entities, eg append."""
+	def __init__(self,name,layer='0',flag=0,base=(0,0,0),entities=[]):
+		self.entities=copy.copy(entities)
+		_Collection.__init__(self,entities)
+		self.layer=layer
+		self.name=name
+		self.flag=0
+		self.base=base
+	def __str__(self): # TODO:
+		e=''.join([str(x)for x in self.entities])
+		return '  0\nBLOCK\n  8\n%s\n  2\n%s\n 70\n%s\n%s\n  3\n%s\n%s  0\nENDBLK\n'%\
+			   (self.layer,self.name.upper(),self.flag,_point(self.base),self.name.upper(),e)
+
+#-----------------------------------------------
+class Layer(_Call):
+	"""Layer"""
+	def __init__(self,name='pydxf',color=7,lineType='continuous',flag=64):
+		self.name=name
+		self.color=color
+		self.lineType=lineType
+		self.flag=flag
+	def __str__(self):
+		return '  0\nLAYER\n  2\n%s\n 70\n%s\n 62\n%s\n  6\n%s\n'%\
+			   (self.name.upper(),self.flag,self.color,self.lineType)
+
+#-----------------------------------------------
+class LineType(_Call):
+	"""Custom linetype"""
+	def __init__(self,name='CONTINUOUS',description='Solid line',elements=[0.0],flag=0):
+		self.name=name
+		self.description=description
+		self.elements=copy.copy(elements)
+		self.flag=flag
+	def __str__(self):
+		result = '  0\nLTYPE\n  2\n%s\n 70\n%s\n  3\n%s\n 72\n65\n'%\
+			(self.name.upper(),self.flag,self.description)
+		if self.elements:
+			elements = ' 73\n%s\n' %(len(self.elements)-1)
+			elements += ' 40\n%s\n' %(self.elements[0])
+			for e in self.elements[1:]:
+				elements += ' 49\n%s\n' %e
+			result += elements
+		return result
+		 
+
+#-----------------------------------------------
+class Style(_Call):
+	"""Text style"""
+	def __init__(self,name='standard',flag=0,height=0,widthFactor=1.0,obliqueAngle=0.0,
+				 mirror=0,lastHeight=1,font='arial.ttf',bigFont=''):
+		self.name=name
+		self.flag=flag
+		self.height=height
+		self.widthFactor=widthFactor
+		self.obliqueAngle=obliqueAngle
+		self.mirror=mirror
+		self.lastHeight=lastHeight
+		self.font=font
+		self.bigFont=bigFont
+	def __str__(self):
+		return '  0\nSTYLE\n  2\n%s\n 70\n%s\n 40\n%s\n 41\n%s\n 50\n%s\n 71\n%s\n 42\n%s\n 3\n%s\n 4\n%s\n'%\
+			   (self.name.upper(),self.flag,self.flag,self.widthFactor,
+				self.obliqueAngle,self.mirror,self.lastHeight,
+				self.font.upper(),self.bigFont.upper())
+
+#-----------------------------------------------
+class VPort(_Call):
+	def __init__(self,name,flag=0,
+				leftBottom=(0.0,0.0),
+				rightTop=(1.0,1.0),
+				center=(0.5,0.5),
+				snap_base=(0.0,0.0),
+				snap_spacing=(0.1,0.1),
+				grid_spacing=(0.1,0.1),
+				direction=(0.0,0.0,1.0),
+				target=(0.0,0.0,0.0),
+				height=1.0,
+				ratio=1.0,
+				lens=50.0,
+				frontClipping=0.0,
+				backClipping=0.0,
+				snap_rotation=0.0,
+				twist=0.0,
+				mode=0,
+				circle_zoom=100,
+				fast_zoom=1,
+				ucsicon=1,
+				snap_on=0,
+				grid_on=0,
+				snap_style=0,
+				snap_isopair=0
+				):
+		self.name=name
+		self.flag=flag
+		self.leftBottom=leftBottom
+		self.rightTop=rightTop
+		self.center=center
+		self.snap_base=snap_base
+		self.snap_spacing=snap_spacing
+		self.grid_spacing=grid_spacing
+		self.direction=direction
+		self.target=target
+		self.height=float(height)
+		self.ratio=float(ratio)
+		self.lens=float(lens)
+		self.frontClipping=float(frontClipping)
+		self.backClipping=float(backClipping)
+		self.snap_rotation=float(snap_rotation)
+		self.twist=float(twist)
+		self.mode=mode
+		self.circle_zoom=circle_zoom
+		self.fast_zoom=fast_zoom
+		self.ucsicon=ucsicon
+		self.snap_on=snap_on
+		self.grid_on=grid_on
+		self.snap_style=snap_style
+		self.snap_isopair=snap_isopair
+	def __str__(self):
+		output = ['  0', 'VPORT',
+			'  2', self.name,
+			' 70', self.flag,
+			_point(self.leftBottom),
+			_point(self.rightTop,1),
+			_point(self.center,2), # View center point (in DCS)
+			_point(self.snap_base,3),
+			_point(self.snap_spacing,4),
+			_point(self.grid_spacing,5),
+			_point(self.direction,6), #view direction from target (in WCS)
+			_point(self.target,7),
+			' 40', self.height,
+			' 41', self.ratio,
+			' 42', self.lens,
+			' 43', self.frontClipping,
+			' 44', self.backClipping,
+			' 50', self.snap_rotation,
+			' 51', self.twist,
+			' 71', self.mode,
+			' 72', self.circle_zoom,
+			' 73', self.fast_zoom,
+			' 74', self.ucsicon,
+			' 75', self.snap_on,
+			' 76', self.grid_on,
+			' 77', self.snap_style,
+			' 78', self.snap_isopair
+			]
+
+		output_str = ''
+		for s in output:
+			output_str += '%s\n' %s
+		return output_str
+
+
+
+#-----------------------------------------------
+class View(_Call):
+	def __init__(self,name,flag=0,
+			width=1.0,
+			height=1.0,
+			center=(0.5,0.5),
+			direction=(0.0,0.0,1.0),
+			target=(0.0,0.0,0.0),
+			lens=50.0,
+			frontClipping=0.0,
+			backClipping=0.0,
+			twist=0.0,mode=0
+			):
+		self.name=name
+		self.flag=flag
+		self.width=float(width)
+		self.height=float(height)
+		self.center=center
+		self.direction=direction
+		self.target=target
+		self.lens=float(lens)
+		self.frontClipping=float(frontClipping)
+		self.backClipping=float(backClipping)
+		self.twist=float(twist)
+		self.mode=mode
+	def __str__(self):
+		output = ['  0', 'VIEW',
+			'  2', self.name,
+			' 70', self.flag,
+			' 40', self.height,
+			_point(self.center),
+			' 41', self.width,
+			_point(self.direction,1),
+			_point(self.target,2),
+			' 42', self.lens,
+			' 43', self.frontClipping,
+			' 44', self.backClipping,
+			' 50', self.twist,
+			' 71', self.mode
+			]
+		output_str = ''
+		for s in output:
+			output_str += '%s\n' %s
+		return output_str
+
+#-----------------------------------------------
+def ViewByWindow(name,leftBottom=(0,0),rightTop=(1,1),**options):
+	width=abs(rightTop[0]-leftBottom[0])
+	height=abs(rightTop[1]-leftBottom[1])
+	center=((rightTop[0]+leftBottom[0])*0.5,(rightTop[1]+leftBottom[1])*0.5)
+	return View(name=name,width=width,height=height,center=center,**options)
+
+#---drawing
+#-----------------------------------------------
+class Drawing(_Collection):
+	"""Dxf drawing. Use append or any other list methods to add objects."""
+	def __init__(self,insbase=(0.0,0.0,0.0),extmin=(0.0,0.0,0.0),extmax=(0.0,0.0,0.0),
+				 layers=[Layer()],linetypes=[LineType()],styles=[Style()],blocks=[],
+				 views=[],vports=[],entities=None,fileName='test.dxf'):
+		# TODO: replace list with None,arial
+		if not entities:
+			entities=[]
+		_Collection.__init__(self,entities)
+		self.insbase=insbase
+		self.extmin=extmin
+		self.extmax=extmax
+		self.layers=copy.copy(layers)
+		self.linetypes=copy.copy(linetypes)
+		self.styles=copy.copy(styles)
+		self.views=copy.copy(views)
+		self.vports=copy.copy(vports)
+		self.blocks=copy.copy(blocks)
+		self.fileName=fileName
+		#print 'deb: blocks=',blocks #----------
+		#private
+		#self.acadver='9\n$ACADVER\n1\nAC1006\n'
+		self.acadver='  9\n$ACADVER\n  1\nAC1009\n'
+		"""DXF AutoCAD-Release format codes:
+		AC1021  2008, 2007 
+		AC1018  2006, 2005, 2004 
+		AC1015  2002, 2000i, 2000 
+		AC1014  R14,14.01 
+		AC1012  R13    
+		AC1009  R12,11 
+		AC1006  R10    
+		AC1004  R9    
+		AC1002  R2.6  
+		AC1.50  R2.05 
+		"""
+
+	def _name(self,x):
+		"""Helper function for self._point"""
+		return '  9\n$%s\n' %x.upper()
+
+	def _point(self,name,x):
+		"""Point setting from drawing like extmin,extmax,..."""
+		return '%s%s' %(self._name(name),_point(x))
+
+	def _section(self,name,x):
+		"""Sections like tables,blocks,entities,..."""
+		if x: xstr=''.join(x)
+		else: xstr=''
+		return '  0\nSECTION\n  2\n%s\n%s  0\nENDSEC\n'%(name.upper(),xstr)
+
+	def _table(self,name,x):
+		"""Tables like ltype,layer,style,..."""
+		if x: xstr=''.join(x)
+		else: xstr=''
+		return '  0\nTABLE\n  2\n%s\n 70\n%s\n%s  0\nENDTAB\n'%(name.upper(),len(x),xstr)
+
+	def __str__(self):
+		"""Returns drawing as dxf string."""
+		header=[self.acadver]+[self._point(attr,getattr(self,attr))+'\n' for attr in _HEADER_POINTS]
+		header=self._section('header',header)
+
+		tables=[self._table('vport',[str(x) for x in self.vports]),
+				self._table('ltype',[str(x) for x in self.linetypes]),
+				self._table('layer',[str(x) for x in self.layers]),
+				self._table('style',[str(x) for x in self.styles]),
+				self._table('view',[str(x) for x in self.views]),
+		]
+		tables=self._section('tables',tables)
+		blocks=self._section('blocks',[str(x) for x in self.blocks])
+		entities=self._section('entities',[str(x) for x in self.entities])
+		all=''.join([header,tables,blocks,entities,'  0\nEOF\n'])
+		return all
+		
+	def _write_section(self,file,name,data):
+		file.write('  0\nSECTION\n  2\n%s\n'%name.upper())
+		for x in data:
+			file.write(str(x))
+		file.write('  0\nENDSEC\n')
+
+	def saveas(self,fileName,buffer=0):
+		"""Writes DXF file. Needs target file name. If optional parameter buffer>0, then switch to old behavior: store entire output string in RAM.
+		"""
+		self.fileName=fileName
+		if buffer: self.save()
+		else: self.export()
+
+	def save(self):
+		outfile=open(self.fileName,'w')
+		outfile.write(str(self))
+		outfile.close()
+
+	def export(self):
+		outfile=open(self.fileName,'w')
+		header=[self.acadver]+[self._point(attr,getattr(self,attr))+'\n' for attr in _HEADER_POINTS]
+		self._write_section(outfile,'header',header)
+		tables=[self._table('vport',[str(x) for x in self.vports]),
+			self._table('ltype',[str(x) for x in self.linetypes]),
+			self._table('layer',[str(x) for x in self.layers]),
+			self._table('style',[str(x) for x in self.styles]),
+			self._table('view',[str(x) for x in self.views]),
+			]
+		self._write_section(outfile,'tables',tables)
+		self._write_section(outfile,'blocks',self.blocks)
+		self._write_section(outfile,'entities',self.entities)
+		outfile.write('  0\nEOF\n')
+		outfile.close()
+
+
+#---extras
+#-----------------------------------------------
+class Rectangle(_Entity):
+	"""Rectangle, creates lines."""
+	def __init__(self,point=(0,0,0),width=1,height=1,solid=None,line=1,**common):
+		_Entity.__init__(self,**common)
+		self.point=point
+		self.width=width
+		self.height=height
+		self.solid=solid
+		self.line=line
+	def __str__(self):
+		result=''
+		points=[self.point,(self.point[0]+self.width,self.point[1],self.point[2]),
+			(self.point[0]+self.width,self.point[1]+self.height,self.point[2]),
+			(self.point[0],self.point[1]+self.height,self.point[2]),self.point]
+		if self.solid:
+			result+= Solid(points=points[:-1],parent=self.solid)
+		if self.line:
+			for i in range(4):
+				result+= Line(points=[points[i],points[i+1]],parent=self)
+		return result[1:]
+
+#-----------------------------------------------
+class LineList(_Entity):
+	"""Like polyline, but built of individual lines."""
+	def __init__(self,points=[],org_point=[0,0,0],closed=0,**common):
+		_Entity.__init__(self,**common)
+		self.closed=closed
+		self.points=copy.copy(points)
+	def __str__(self):
+		if self.closed:
+			points=self.points+[self.points[0]]
+		else: points=self.points
+		result=''
+		for i in range(len(points)-1):
+			result+= Line(points=[points[i][0],points[i+1][0]],parent=self)
+		return result[1:]
+
+#-----------------------------------------------------
+def test():
+	#Blocks
+	b=Block('test')
+	b.append(Solid(points=[(0,0,0),(1,0,0),(1,1,0),(0,1,0)],color=1))
+	b.append(Arc(center=(1,0,0),color=2))
+
+	#Drawing
+	d=Drawing()
+	#tables
+	d.blocks.append(b)  #table blocks
+	d.styles.append(Style())  #table styles
+	d.views.append(View('Normal'))  #table view
+	d.views.append(ViewByWindow('Window',leftBottom=(1,0),rightTop=(2,1)))  #idem
+
+	#entities
+	d.append(Circle(center=(1,1,0),color=3))
+	d.append(Face(points=[(0,0,0),(1,0,0),(1,1,0),(0,1,0)],color=4))
+	d.append(Insert('test',point=(3,3,3),cols=5,colspacing=2))
+	d.append(Line(points=[(0,0,0),(1,1,1)]))
+	d.append(Mtext('Click on Ads\nmultiple lines with mtext',point=(1,1,1),color=5,rotation=90))
+	d.append(Text('Please donate!',point=(3,0,1)))
+	#d.append(Rectangle(point=(2,2,2),width=4,height=3,color=6,solid=Solid(color=2)))
+	d.append(Solid(points=[(4,4,0),(5,4,0),(7,8,0),(9,9,0)],color=3))
+	#d.append(PolyLine(points=[(1,1,1),(2,1,1),(2,2,1),(1,2,1)],flag=1,color=1))
+
+	#d.saveas('c:\\test.dxf')
+	d.saveas('test.dxf')
+
+#-----------------------------------------------------
+if __name__=='__main__':
+	if not copy:
+		Draw.PupMenu('Error%t|This script requires a full python install')
+	else: test()
+	
diff --git a/io_export_dxf/model/migiusModel.py b/io_export_dxf/model/migiusModel.py
new file mode 100644
index 00000000..a1e8b830
--- /dev/null
+++ b/io_export_dxf/model/migiusModel.py
@@ -0,0 +1,122 @@
+"""
+Created on Sep 2, 2011
+
+@author: vencax
+"""
+
+from .model import DxfDrawing
+
+try:
+    from . import dxfLibrary as DXF
+    #reload(DXF)
+    #reload(dxfLibrary)
+    #from dxfLibrary import *
+except Exception:
+    raise Exception("No dxfLibrary.py module in Blender script folder found!")
+        
+#------------------------------------------------------
+#def col2RGB(color):
+#    return [int(floor(255*color[0])),
+#            int(floor(255*color[1])),
+#            int(floor(255*color[2]))]
+#
+#global dxfColors
+#dxfColors=None
+#
+##------------------------------------------------------
+#def col2DXF(rgbcolor):
+#    global dxfColors
+#    if dxfColors is None:
+#        from dxfColorMap import color_map
+#        dxfColors = [(tuple(color),idx) for idx, color in color_map.iteritems()]
+#        dxfColors.sort()
+#    entry = (tuple(rgbcolor), -1)
+#    dxfColors.append(entry)
+#    dxfColors.sort()
+#    i = dxfColors.index(entry)
+#    dxfColors.pop(i)
+#    return dxfColors[i-1][1]
+
+"""
+v = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,\
+28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,46,47,58,59,60,61,62,63,64,91,92,93,94,96,\
+123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,\
+151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,\
+171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,\
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,\
+211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,\
+231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254]
+invalid = ''.join([chr(i) for i in v])
+del v, i
+"""
+#TODO: validDXFr14 = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.'
+validDXFr12 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_'
+NAMELENGTH_MAX = 80   #max_obnamelength in DXF, (limited to 256? )
+#------------------------------------------------------
+def cleanName(name, valid):
+    validname = ''
+    for ch in name:
+        if ch not in valid:    ch = '_'
+        validname += ch
+    return validname
+
+#------------------------------------------------------
+def validDXFr12name(str_name):
+    dxfname = str(str_name)
+    dxfname = dxfname[:NAMELENGTH_MAX].upper()
+    dxfname = cleanName(dxfname, validDXFr12)
+    return dxfname
+
+class MigiusDXFLibDrawing(DxfDrawing):
+    """ Drawing that can convert itself into MIGIUS DXFLib stuff objects """
+
+    def convert(self, file, **kwargs):
+        drawing = self._write()
+        for type, ents in self._entities.items():
+            self._processEntityArray(drawing, type, ents)
+        for v in self._views:
+            drawing.views.append(DXF.View(**v))
+        for v in self._vports:
+            drawing.vports.append(DXF.VPort(**v))
+#        for l in self._layers:
+        drawing.saveas(file)
+
+    def _write(self):        
+        # init Drawing ---------------------
+        d=DXF.Drawing()
+        # add Tables -----------------
+        # initialized automatic: d.blocks.append(b)                 #section BLOCKS
+        # initialized automatic: d.styles.append(DXF.Style())            #table STYLE
+    
+        #table LTYPE ---------------
+        #d.linetypes.append(DXF.LineType(name='CONTINUOUS',description='--------',elements=[0.0]))
+        d.linetypes.append(DXF.LineType(name='DOT',description='. . . . . . .',elements=[0.25, 0.0, -0.25]))
+        d.linetypes.append(DXF.LineType(name='DASHED',description='__ __ __ __ __',elements=[0.8, 0.5, -0.3]))
+        d.linetypes.append(DXF.LineType(name='DASHDOT',description='__ . __ . __ .',elements=[1.0, 0.5, -0.25, 0.0, -0.25]))
+        d.linetypes.append(DXF.LineType(name='DIVIDE',description='____ . . ____ . . ',elements=[1.25, 0.5, -0.25, 0.0, -0.25, 0.0, -0.25]))
+        d.linetypes.append(DXF.LineType(name='BORDER',description='__ __ . __ __ . ',elements=[1.75, 0.5, -0.25, 0.5, -0.25, 0.0, -0.25]))
+        d.linetypes.append(DXF.LineType(name='HIDDEN',description='__ __ __ __ __',elements=[0.4, 0.25, -0.25]))
+        d.linetypes.append(DXF.LineType(name='CENTER',description='____ _ ____ _ __',elements=[2.0, 1.25, -0.25, 0.25, -0.25]))
+    
+        #d.vports.append(DXF.VPort('*ACTIVE'))
+        d.vports.append(DXF.VPort('*ACTIVE',center=(-5.0,1.0),height=10.0))
+        #d.vports.append(DXF.VPort('*ACTIVE',leftBottom=(-100.0,-60.0),rightTop=(100.0,60.0)))
+        #d.views.append(DXF.View('Normal'))      #table view
+        d.views.append(DXF.ViewByWindow('BF_TOPVIEW',leftBottom=(-100,-60),rightTop=(100,60)))  #idem
+        
+        return d
+
+    def _processEntityArray(self, drawing, type, ents):
+        if type=='Point':
+            for e in ents:
+                drawing.append(DXF.Point(**e))
+        elif type=='Line':
+            for e in ents:
+                drawing.append(DXF.Line(**e))
+        elif type=='PolyLine':
+            for e in ents:
+                drawing.append(DXF.PolyLine(**e))
+        elif type=='Face':
+            for e in ents:
+                drawing.append(DXF.Face(**e))
+
diff --git a/io_export_dxf/model/model.py b/io_export_dxf/model/model.py
new file mode 100644
index 00000000..bff37339
--- /dev/null
+++ b/io_export_dxf/model/model.py
@@ -0,0 +1,38 @@
+
+class DxfDrawing(object):
+	"""
+	Represents intermediate model of DXF drawing. It is useful in iterating
+	through exported object and for easy change the DXF handling library.
+	"""
+	def __init__(self):
+		self._entities = {}
+		self._layers = {}
+		self._views = []
+		self._vports = []
+		self._blocks = []
+		
+	def isEmpty(self):
+		return len(self._entities) == 0
+
+	def addEntity(self, type, **kwargs):
+		if type not in self._entities:
+			self._entities[type] = []
+		self._entities[type].append(kwargs)
+
+	def addLayer(self, name, color):
+		self._layers[name] = color
+
+	def containsLayer(self, name):
+		return name in self._layers
+
+	def addBlock(self, block):
+		self._blocks.append(block)
+
+	def containsBlock(self, blockname):
+		return blockname in self._blocks
+
+	def convert(self, **kwargs):
+		""" Converts this drawing into DXF representation object """
+		raise NotImplementedError()
+	
+