DXF exporter, dxf-library.py updated

v1.28 - 2008.12.13 by Steeve/BlenderArtists
- bugfix for EXTMIN/EXTMAX to suit Cycas-CAD

release/scripts/bpymodules/dxfLibrary.py

@@ -1,10 +1,10 @@
 #dxfLibrary.py : provides functions for generating DXF files
 # --------------------------------------------------------------------------
-__version__ = "v1.27beta - 2008.10.05"
+__version__ = "v1.28beta - 2008.12.13"
-__author__  = "Stani Michiels(Stani), Remigiusz Fiedler(migius)"
+__author__ = "Stani Michiels(Stani), Remigiusz Fiedler(migius)"
 __license__ = "GPL"
-__url__	 = "http://wiki.blender.org/index.php/Scripts/Manual/Export/autodesk_dxf"
+__url__ = "http://wiki.blender.org/index.php/Scripts/Manual/Export/autodesk_dxf"
-__bpydoc__ ="""The script exports geometry data to DXF format r12 version.
+__bpydoc__ ="""The library to export geometry data to DXF format r12 version.
 
 Copyright %s
 Version %s
@@ -12,15 +12,17 @@ License %s
 Homepage %s
 
 See the homepage for documentation.
-url:
+Dedicated thread on BlenderArtists: http://blenderartists.org/forum/showthread.php?t=136439
 
 IDEAs:
 -
-		
+
 TODO:
--
+- add support for SPLINEs
 
 History
+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
@@ -154,56 +156,56 @@ 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
+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 =4  # This block is an external reference (xref)
-XREF_OVERLAY			=8  # This block is an xref overlay
+XREF_OVERLAY =8  # This block is an xref overlay
-EXTERNAL				=16 # This block is externally dependent
+EXTERNAL =16 # This block is externally dependent
-RESOLVED				=32 # This is a resolved external reference, or dependent of an external reference (ignored on input)
+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)
+REFERENCED =64 # This definition is a referenced external reference (ignored on input)
 
 #---mtext flags
 #attachment point
-TOP_LEFT		= 1
+TOP_LEFT = 1
-TOP_CENTER	  = 2
+TOP_CENTER = 2
-TOP_RIGHT	   = 3
+TOP_RIGHT = 3
-MIDDLE_LEFT	 = 4
+MIDDLE_LEFT = 4
-MIDDLE_CENTER   = 5
+MIDDLE_CENTER = 5
 MIDDLE_RIGHT	= 6
-BOTTOM_LEFT	 = 7
+BOTTOM_LEFT = 7
-BOTTOM_CENTER   = 8
+BOTTOM_CENTER = 8
-BOTTOM_RIGHT	= 9
+BOTTOM_RIGHT = 9
 #drawing direction
-LEFT_RIGHT	  = 1
+LEFT_RIGHT = 1
-TOP_BOTTOM	  = 3
+TOP_BOTTOM = 3
-BY_STYLE		= 5 #the flow direction is inherited from the associated text style
+BY_STYLE = 5 #the flow direction is inherited from the associated text style
 #line spacing style (optional):
-AT_LEAST		= 1 #taller characters will override
+AT_LEAST = 1 #taller characters will override
-EXACT		   = 2 #taller characters will not override
+EXACT = 2 #taller characters will not override
 
 #---polyline flags
-CLOSED					  =1	  # This is a closed polyline (or a polygon mesh closed in the M direction)
+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
+CURVE_FIT =2	  # Curve-fit vertices have been added
-SPLINE_FIT				  =4	  # Spline-fit vertices have been added
+SPLINE_FIT =4	  # Spline-fit vertices have been added
-POLYLINE_3D				 =8	  # This is a 3D polyline
+POLYLINE_3D =8	  # This is a 3D polyline
-POLYGON_MESH				=16	 # This is a 3D polygon mesh
+POLYGON_MESH =16	 # This is a 3D polygon mesh
-CLOSED_N					=32	 # The polygon mesh is closed in the N direction
+CLOSED_N =32	 # The polygon mesh is closed in the N direction
-POLYFACE_MESH			   =64	 # The polyline is a polyface mesh
+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
+CONTINOUS_LINETYPE_PATTERN =128	# The linetype pattern is generated continuously around the vertices of this polyline
 
 #---text flags
 #horizontal
-LEFT		= 0
+LEFT = 0
-CENTER	  = 1
+CENTER = 1
-RIGHT	   = 2
+RIGHT = 2
-ALIGNED	 = 3 #if vertical alignment = 0
+ALIGNED = 3 #if vertical alignment = 0
-MIDDLE	  = 4 #if vertical alignment = 0
+MIDDLE = 4 #if vertical alignment = 0
-FIT		 = 5 #if vertical alignment = 0
+FIT = 5 #if vertical alignment = 0
 #vertical
-BASELINE	= 0
+BASELINE = 0
-BOTTOM	  = 1
+BOTTOM	= 1
-MIDDLE	  = 2
+MIDDLE = 2
-TOP		 = 3
+TOP = 3
 
 ####3) Classes
 #---entitities -----------------------------------------------
@@ -239,7 +241,7 @@ class Face(_Entity):
 	"""3dface"""
 	def __init__(self,points,**common):
 		_Entity.__init__(self,**common)
-		if len(points)<4: #fix for r12 format
+		while len(points)<4: #fix for r12 format
 			points.append(points[-1])
 		self.points=points
 		
@@ -336,10 +338,14 @@ class PolyLine(_Entity):
 
 #-----------------------------------------------
 class Point(_Entity):
-	"""Colored solid fill."""
+	"""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):
@@ -468,7 +474,7 @@ class Block(_Collection):
 		self.name=name
 		self.flag=0
 		self.base=base
-	def __str__(self):
+	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)
@@ -552,11 +558,12 @@ def ViewByWindow(name,leftBottom=(0,0),rightTop=(1,1),**options):
 #-----------------------------------------------
 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),extmax=(0.0,0.0),
+	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=[],entities=None,fileName='test.dxf'):
 		# TODO: replace list with None,arial
-		if not entities:entities=[]
+		if not entities:
+			entities=[]
 		_Collection.__init__(self,entities)
 		self.insbase=insbase
 		self.extmin=extmin
@@ -680,9 +687,9 @@ def test():
 	#Drawing
 	d=Drawing()
 	#tables
-	d.blocks.append(b)					  #table blocks
+	d.blocks.append(b)  #table blocks
-	d.styles.append(Style())				#table styles
+	d.styles.append(Style())  #table styles
-	d.views.append(View('Normal'))		  #table view
+	d.views.append(View('Normal'))  #table view
 	d.views.append(ViewByWindow('Window',leftBottom=(1,0),rightTop=(2,1)))  #idem
 
 	#entities