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#dxfLibrary.py : provides functions for generating DXF files
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# --------------------------------------------------------------------------
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__version__ = "v1.27beta - 2008.10.05"
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__author__ = "Stani Michiels(Stani), Remigiusz Fiedler(migius)"
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__url__ = "http://wiki.blender.org/index.php/Scripts/Manual/Export/autodesk_dxf"
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__bpydoc__ ="""The script exports geometry data to DXF format r12 version.
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See the homepage for documentation.
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v1.27 - 2008.10.07 by migius
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- beautifying output code: keys whitespace prefix
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- refactoring DXF-strings format: NewLine moved to the end of
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v1.26 - 2008.10.05 by migius
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- modif POLYLINE to support POLYFACE
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v1.25 - 2008.09.28 by migius
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- modif FACE class for r12
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v1.24 - 2008.09.27 by migius
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- modif POLYLINE class for r12
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- changing output format from r9 to r12(AC1009)
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v1.1 (20/6/2005) by www.stani.be/python/sdxf
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- Python library to generate dxf drawings
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______________________________________________________________
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""" % (__author__,__version__,__license__,__url__)
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# --------------------------------------------------------------------------
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# DXF Library: copyright (C) 2005 by Stani Michiels (AKA Stani)
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# 2008 modif by Remigiusz Fiedler (AKA migius)
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# --------------------------------------------------------------------------
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# ***** BEGIN GPL LICENSE BLOCK *****
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# ***** END GPL LICENCE BLOCK *****
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#from Blender import Mathutils, Window, Scene, sys, Draw
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#from struct import pack
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####1) Private (only for developpers)
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_HEADER_POINTS=['insbase','extmin','extmax']
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#---helper functions-----------------------------------
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def _point(x,index=0):
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"""Convert tuple to a dxf point"""
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#print 'deb: _point=', x #-------------
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return '\n'.join([' %s\n%s'%((i+1)*10+index,x[i]) for i in range(len(x))])
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"""Convert a list of tuples to dxf points"""
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out = '\n'.join([_point(plist[i],i)for i in range(len(plist))])
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#print 'deb: points=\n', out #-------------------
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#---base classes----------------------------------------
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"""Makes a callable class."""
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return copy.deepcopy(self)
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def __call__(self,**attrs):
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"""Returns a copy with modified attributes."""
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for attr in attrs:setattr(copied,attr,attrs[attr])
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#-------------------------------------------------------
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class _Entity(_Call):
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"""Base class for _common group codes for entities."""
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def __init__(self,color=None,extrusion=None,layer='0',
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lineType=None,lineTypeScale=None,lineWeight=None,
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thickness=None,parent=None):
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"""None values will be omitted."""
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self.extrusion = extrusion
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self.lineType = lineType
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self.lineTypeScale = lineTypeScale
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self.lineWeight = lineWeight
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self.thickness = thickness
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"""Return common group codes as a string."""
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if self.parent:parent=self.parent
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if parent.layer!=None: result+=' 8\n%s\n'%parent.layer
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if parent.color!=None: result+=' 62\n%s\n'%parent.color
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if parent.extrusion!=None: result+='%s\n'%_point(parent.extrusion,200)
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if parent.lineType!=None: result+=' 6\n%s\n'%parent.lineType
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#TODO: if parent.lineWeight!=None: result+='370\n%s\n'%parent.lineWeight
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if parent.lineTypeScale!=None: result+=' 48\n%s\n'%parent.lineTypeScale
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if parent.thickness!=None: result+=' 39\n%s\n'%parent.thickness
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#--------------------------
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"""Base class to deal with composed objects."""
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return ''.join([str(x) for x in self.__dxf__()])
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#--------------------------
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class _Collection(_Call):
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"""Base class to expose entities methods to main object."""
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def __init__(self,entities=[]):
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self.entities=copy.copy(entities)
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#link entities methods to drawing
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for attr in dir(self.entities):
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attrObject=getattr(self.entities,attr)
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if callable(attrObject):
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setattr(self,attr,attrObject)
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#---block-type flags (bit coded values, may be combined):
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ANONYMOUS =1 # This is an anonymous block generated by hatching, associative dimensioning, other internal operations, or an application
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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)
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XREF =4 # This block is an external reference (xref)
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XREF_OVERLAY =8 # This block is an xref overlay
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EXTERNAL =16 # This block is externally dependent
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RESOLVED =32 # This is a resolved external reference, or dependent of an external reference (ignored on input)
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REFERENCED =64 # This definition is a referenced external reference (ignored on input)
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BY_STYLE = 5 #the flow direction is inherited from the associated text style
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#line spacing style (optional):
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AT_LEAST = 1 #taller characters will override
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EXACT = 2 #taller characters will not override
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CLOSED =1 # This is a closed polyline (or a polygon mesh closed in the M direction)
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CURVE_FIT =2 # Curve-fit vertices have been added
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SPLINE_FIT =4 # Spline-fit vertices have been added
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POLYLINE_3D =8 # This is a 3D polyline
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POLYGON_MESH =16 # This is a 3D polygon mesh
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CLOSED_N =32 # The polygon mesh is closed in the N direction
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POLYFACE_MESH =64 # The polyline is a polyface mesh
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CONTINOUS_LINETYPE_PATTERN =128 # The linetype pattern is generated continuously around the vertices of this polyline
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ALIGNED = 3 #if vertical alignment = 0
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MIDDLE = 4 #if vertical alignment = 0
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FIT = 5 #if vertical alignment = 0
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#---entitities -----------------------------------------------
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#--------------------------
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"""Arc, angles in degrees."""
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def __init__(self,center=(0,0,0),radius=1,
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startAngle=0.0,endAngle=90,**common):
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"""Angles in degrees."""
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_Entity.__init__(self,**common)
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self.startAngle=startAngle
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self.endAngle=endAngle
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return ' 0\nARC\n%s%s\n 40\n%s\n 50\n%s\n 51\n%s\n'%\
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(self._common(),_point(self.center),
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self.radius,self.startAngle,self.endAngle)
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#-----------------------------------------------
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class Circle(_Entity):
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def __init__(self,center=(0,0,0),radius=1,**common):
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_Entity.__init__(self,**common)
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return ' 0\nCIRCLE\n%s%s\n 40\n%s\n'%\
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(self._common(),_point(self.center),self.radius)
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#-----------------------------------------------
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def __init__(self,points,**common):
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_Entity.__init__(self,**common)
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if len(points)<4: #fix for r12 format
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points.append(points[-1])
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out = ' 0\n3DFACE\n%s%s\n' %(self._common(),_points(self.points))
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#print 'deb:out=', out #-------------------
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#-----------------------------------------------
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class Insert(_Entity):
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"""Block instance."""
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def __init__(self,name,point=(0,0,0),
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xscale=None,yscale=None,zscale=None,
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cols=None,colspacing=None,rows=None,rowspacing=None,
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_Entity.__init__(self,**common)
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self.colspacing=colspacing
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self.rowspacing=rowspacing
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self.rotation=rotation
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result=' 0\nINSERT\n 2\n%s\n%s\n%s\n'%\
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(self.name,self._common(),_point(self.point))
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if self.xscale!=None:result+=' 41\n%s\n'%self.xscale
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if self.yscale!=None:result+=' 42\n%s\n'%self.yscale
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if self.zscale!=None:result+=' 43\n%s\n'%self.zscale
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if self.rotation:result+=' 50\n%s\n'%self.rotation
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if self.cols!=None:result+=' 70\n%s\n'%self.cols
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if self.colspacing!=None:result+=' 44\n%s\n'%self.colspacing
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if self.rows!=None:result+=' 71\n%s\n'%self.rows
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if self.rowspacing!=None:result+=' 45\n%s\n'%self.rowspacing
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#-----------------------------------------------
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def __init__(self,points,**common):
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_Entity.__init__(self,**common)
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return ' 0\nLINE\n%s%s\n' %(
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self._common(), _points(self.points))
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#-----------------------------------------------
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class PolyLine(_Entity):
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def __init__(self,points,org_point=[0,0,0],flag=0,width=None,**common):
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_Entity.__init__(self,**common)
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self.org_point=org_point
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self.points=points[0]
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self.p_count=len(self.points)
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self.f_count=len(self.faces)
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result= ' 0\nPOLYLINE\n%s 70\n%s\n' %(self._common(),self.flag)
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#print 'deb: self._common()', self._common() #----------
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result+='%s\n' %_point(self.org_point)
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result+=' 71\n%s\n' %self.p_count
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result+=' 72\n%s\n' %self.f_count
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for point in self.points:
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result+=' 0\nVERTEX\n'
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result+=' 8\n%s\n' %self.layer
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result+='%s\n' %_point(point)
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if self.flag==64: result+=' 70\n192\n'
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if self.width: result+=' 40\n%s\n 41\n%s\n' %(self.width,self.width)
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for face in self.faces:
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result+=' 0\nVERTEX\n'
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result+=' 8\n%s\n' %self.layer
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result+='%s\n' %_point(self.org_point)
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result+=' 71\n%s\n' %face[0]
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result+=' 72\n%s\n' %face[1]
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result+=' 73\n%s\n' %face[2]
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if len(face)==4: result+=' 74\n%s\n' %face[3]
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result+=' 0\nSEQEND\n'
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result+=' 8\n%s\n' %self.layer
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#-----------------------------------------------
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class Point(_Entity):
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"""Colored solid fill."""
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def __init__(self,points=None,**common):
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_Entity.__init__(self,**common)
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#-----------------------------------------------
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class Solid(_Entity):
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"""Colored solid fill."""
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def __init__(self,points=None,**common):
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_Entity.__init__(self,**common)
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return ' 0\nSOLID\n%s%s\n' %(self._common(),
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_points(self.points[:2]+[self.points[3],self.points[2]])
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#-----------------------------------------------
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"""Single text line."""
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def __init__(self,text='',point=(0,0,0),alignment=None,
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flag=None,height=1,justifyhor=None,justifyver=None,
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rotation=None,obliqueAngle=None,style=None,xscale=None,**common):
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_Entity.__init__(self,**common)
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self.alignment=alignment
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self.justifyhor=justifyhor
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self.justifyver=justifyver
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self.rotation=rotation
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self.obliqueAngle=obliqueAngle
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result= ' 0\nTEXT\n%s%s\n 40\n%s\n 1\n%s\n'%\
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(self._common(),_point(self.point),self.height,self.text)
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if self.rotation: result+=' 50\n%s\n'%self.rotation
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if self.xscale: result+=' 41\n%s\n'%self.xscale
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if self.obliqueAngle: result+=' 51\n%s\n'%self.obliqueAngle
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if self.style: result+=' 7\n%s\n'%self.style
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if self.flag: result+=' 71\n%s\n'%self.flag
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if self.justifyhor: result+=' 72\n%s\n'%self.justifyhor
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#TODO: if self.alignment: result+='%s\n'%_point(self.alignment,1)
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if self.justifyver: result+=' 73\n%s\n'%self.justifyver
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#-----------------------------------------------
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"""Surrogate for mtext, generates some Text instances."""
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def __init__(self,text='',point=(0,0,0),width=250,spacingFactor=1.5,down=0,spacingWidth=None,**options):
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Text.__init__(self,text=text,point=point,**options)
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if down:spacingFactor*=-1
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self.spacingFactor=spacingFactor
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self.spacingWidth=spacingWidth
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texts=self.text.replace('\r\n','\n').split('\n')
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if not self.down:texts.reverse()
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if self.spacingWidth:spacingWidth=self.spacingWidth
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else:spacingWidth=self.height*self.spacingFactor
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result+='%s\n'%Text(text[:self.width],
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point=(self.point[0]+x*spacingWidth,
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self.point[1]+y*spacingWidth,
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alignment=self.alignment,flag=self.flag,height=self.height,
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justifyhor=self.justifyhor,justifyver=self.justifyver,
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rotation=self.rotation,obliqueAngle=self.obliqueAngle,
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style=self.style,xscale=self.xscale,parent=self
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text=text[self.width:]
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if self.rotation:x+=1
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#-----------------------------------------------
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##class _Mtext(_Entity):
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## """Mtext not functioning for minimal dxf."""
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## def __init__(self,text='',point=(0,0,0),attachment=1,
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## charWidth=None,charHeight=1,direction=1,height=100,rotation=0,
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## spacingStyle=None,spacingFactor=None,style=None,width=100,
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## xdirection=None,**common):
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## _Entity.__init__(self,**common)
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## self.attachment=attachment
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## self.charWidth=charWidth
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## self.charHeight=charHeight
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## self.direction=direction
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## self.height=height
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## self.rotation=rotation
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## self.spacingStyle=spacingStyle
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## self.spacingFactor=spacingFactor
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## self.xdirection=xdirection
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## def __str__(self):
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## while len(input)>250:
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## text+='3\n%s\n'%input[:250]
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## text+='1\n%s\n'%input
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## 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'%\
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## (self._common(),_point(self.point),self.charHeight,self.width,
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## self.attachment,self.direction,text,
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## if self.style:result+='7\n%s\n'%self.style
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## if self.xdirection:result+='%s\n'%_point(self.xdirection,1)
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## if self.charWidth:result+='42\n%s\n'%self.charWidth
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## if self.spacingStyle:result+='73\n%s\n'%self.spacingStyle
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## if self.spacingFactor:result+='44\n%s\n'%self.spacingFactor
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#---tables ---------------------------------------------------
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#-----------------------------------------------
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class Block(_Collection):
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"""Use list methods to add entities, eg append."""
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def __init__(self,name,layer='0',flag=0,base=(0,0,0),entities=[]):
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self.entities=copy.copy(entities)
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_Collection.__init__(self,entities)
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e=''.join([str(x)for x in self.entities])
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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'%\
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(self.layer,self.name.upper(),self.flag,_point(self.base),self.name.upper(),e)
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#-----------------------------------------------
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def __init__(self,name='pydxf',color=7,lineType='continuous',flag=64):
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self.lineType=lineType
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return ' 0\nLAYER\n 2\n%s\n 70\n%s\n 62\n%s\n 6\n%s\n'%\
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(self.name.upper(),self.flag,self.color,self.lineType)
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#-----------------------------------------------
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class LineType(_Call):
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"""Custom linetype"""
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def __init__(self,name='continuous',description='Solid line',elements=[],flag=64):
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# TODO: Implement lineType elements
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self.description=description
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self.elements=copy.copy(elements)
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return ' 0\nLTYPE\n 2\n%s\n 70\n%s\n 3\n%s\n 72\n65\n 73\n%s\n 40\n0.0\n'%\
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(self.name.upper(),self.flag,self.description,len(self.elements))
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#-----------------------------------------------
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def __init__(self,name='standard',flag=0,height=0,widthFactor=40,obliqueAngle=50,
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mirror=0,lastHeight=1,font='arial.ttf',bigFont=''):
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self.widthFactor=widthFactor
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self.obliqueAngle=obliqueAngle
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self.lastHeight=lastHeight
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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'%\
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(self.name.upper(),self.flag,self.flag,self.widthFactor,
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self.obliqueAngle,self.mirror,self.lastHeight,
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self.font.upper(),self.bigFont.upper())
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#-----------------------------------------------
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def __init__(self,name,flag=0,width=1,height=1,center=(0.5,0.5),
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direction=(0,0,1),target=(0,0,0),lens=50,
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frontClipping=0,backClipping=0,twist=0,mode=0):
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self.direction=direction
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self.frontClipping=frontClipping
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self.backClipping=backClipping
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return ' 0\nVIEW\n 2\n%s\n 70\n%s\n 40\n%s\n%s\n 41\n%s\n%s\n%s\n 42\n%s\n 43\n%s\n 44\n%s\n 50\n%s\n 71\n%s\n'%\
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(self.name,self.flag,self.height,_point(self.center),self.width,
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_point(self.direction,1),_point(self.target,2),self.lens,
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self.frontClipping,self.backClipping,self.twist,self.mode)
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#-----------------------------------------------
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def ViewByWindow(name,leftBottom=(0,0),rightTop=(1,1),**options):
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width=abs(rightTop[0]-leftBottom[0])
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height=abs(rightTop[1]-leftBottom[1])
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center=((rightTop[0]+leftBottom[0])*0.5,(rightTop[1]+leftBottom[1])*0.5)
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return View(name=name,width=width,height=height,center=center,**options)
552
#-----------------------------------------------
553
class Drawing(_Collection):
554
"""Dxf drawing. Use append or any other list methods to add objects."""
555
def __init__(self,insbase=(0.0,0.0,0.0),extmin=(0.0,0.0),extmax=(0.0,0.0),
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layers=[Layer()],linetypes=[LineType()],styles=[Style()],blocks=[],
557
views=[],entities=None,fileName='test.dxf'):
558
# TODO: replace list with None,arial
559
if not entities:entities=[]
560
_Collection.__init__(self,entities)
564
self.layers=copy.copy(layers)
565
self.linetypes=copy.copy(linetypes)
566
self.styles=copy.copy(styles)
567
self.views=copy.copy(views)
568
self.blocks=copy.copy(blocks)
569
self.fileName=fileName
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#self.acadver='9\n$ACADVER\n1\nAC1006\n'
572
self.acadver=' 9\n$ACADVER\n 1\nAC1009\n'
573
"""DXF AutoCAD-Release format codes
575
AC1018 2006, 2005, 2004
576
AC1015 2002, 2000i, 2000
587
"""Helper function for self._point"""
588
return ' 9\n$%s\n' %x.upper()
590
def _point(self,name,x):
591
"""Point setting from drawing like extmin,extmax,..."""
592
return '%s%s' %(self._name(name),_point(x))
594
def _section(self,name,x):
595
"""Sections like tables,blocks,entities,..."""
596
if x: xstr=''.join(x)
598
return ' 0\nSECTION\n 2\n%s\n%s 0\nENDSEC\n'%(name.upper(),xstr)
600
def _table(self,name,x):
601
"""Tables like ltype,layer,style,..."""
602
if x: xstr=''.join(x)
604
return ' 0\nTABLE\n 2\n%s\n 70\n%s\n%s 0\nENDTAB\n'%(name.upper(),len(x),xstr)
607
"""Returns drawing as dxf string."""
608
header=[self.acadver]+[self._point(attr,getattr(self,attr))+'\n' for attr in _HEADER_POINTS]
609
header=self._section('header',header)
611
tables=[self._table('ltype',[str(x) for x in self.linetypes]),
612
self._table('layer',[str(x) for x in self.layers]),
613
self._table('style',[str(x) for x in self.styles]),
614
self._table('view',[str(x) for x in self.views]),
616
tables=self._section('tables',tables)
618
blocks=self._section('blocks',[str(x) for x in self.blocks])
620
entities=self._section('entities',[str(x) for x in self.entities])
622
all=''.join([header,tables,blocks,entities,' 0\nEOF\n'])
625
def saveas(self,fileName):
626
self.fileName=fileName
630
test=open(self.fileName,'w')
631
test.write(str(self))
636
#-----------------------------------------------
637
class Rectangle(_Entity):
638
"""Rectangle, creates lines."""
639
def __init__(self,point=(0,0,0),width=1,height=1,solid=None,line=1,**common):
640
_Entity.__init__(self,**common)
648
points=[self.point,(self.point[0]+self.width,self.point[1],self.point[2]),
649
(self.point[0]+self.width,self.point[1]+self.height,self.point[2]),
650
(self.point[0],self.point[1]+self.height,self.point[2]),self.point]
652
result+= Solid(points=points[:-1],parent=self.solid)
655
result+= Line(points=[points[i],points[i+1]],parent=self)
658
#-----------------------------------------------
659
class LineList(_Entity):
660
"""Like polyline, but built of individual lines."""
661
def __init__(self,points=[],org_point=[0,0,0],closed=0,**common):
662
_Entity.__init__(self,**common)
664
self.points=copy.copy(points)
666
if self.closed:points=self.points+[self.points[0]]
667
else: points=self.points
669
for i in range(len(points)-1):
670
result+= Line(points=[points[i],points[i+1]],parent=self)
673
#-----------------------------------------------------
677
b.append(Solid(points=[(0,0,0),(1,0,0),(1,1,0),(0,1,0)],color=1))
678
b.append(Arc(center=(1,0,0),color=2))
683
d.blocks.append(b) #table blocks
684
d.styles.append(Style()) #table styles
685
d.views.append(View('Normal')) #table view
686
d.views.append(ViewByWindow('Window',leftBottom=(1,0),rightTop=(2,1))) #idem
689
d.append(Circle(center=(1,1,0),color=3))
690
d.append(Face(points=[(0,0,0),(1,0,0),(1,1,0),(0,1,0)],color=4))
691
d.append(Insert('test',point=(3,3,3),cols=5,colspacing=2))
692
d.append(Line(points=[(0,0,0),(1,1,1)]))
693
d.append(Mtext('Click on Ads\nmultiple lines with mtext',point=(1,1,1),color=5,rotation=90))
694
d.append(Text('Please donate!',point=(3,0,1)))
695
d.append(Rectangle(point=(2,2,2),width=4,height=3,color=6,solid=Solid(color=2)))
696
d.append(Solid(points=[(4,4,0),(5,4,0),(7,8,0),(9,9,0)],color=3))
697
d.append(PolyLine(points=[(1,1,1),(2,1,1),(2,2,1),(1,2,1)],closed=1,color=1))
699
#d.saveas('c:\\test.dxf')
703
#-----------------------------------------------------
704
if __name__=='__main__':
706
Draw.PupMenu('Error%t|This script requires a full python install')
b'\\ No newline at end of file'
added
removed
release/scripts/bpymodules/dxfLibrary.py
