dxfgrabber 0.8.0

A Python library to grab information from DXF drawings - all DXF versions supported.

Abstract

A Python library to grab information from DXF drawings - all DXF versions supported.

Installation

python setup.py install

Documentation

http://dxfgrabber.readthedocs.org

http://pythonhosted.org/dxfgrabber/

Source at bitbucket.org:

http://bitbucket.org/mozman/dxfgrabber

mozman – <[e-mail]>

News

Version 0.8.0 - 2016-04-24

• internal refactoring - removed extra layer for DXF R12 and DXF R13 implementation

• removed parts implemented in Cython

• new version is ~30% faster than the old pure Python version but ~15% slower than the version with C-extension

• some pep8 refactorings, renamed attributes like startparam to start_param

Version 0.7.5 - 2015-11-29

• Python only version runs with CPython (2.7, 3.4, 3.5), pypy-5.0.0 and pypy3-2.4.0

• accepts block definitions without explicit base point, defaults to (0, 0, 0)

• NEW: reads DXF versions older than AC1009 (DXF R12), as far I know, I need more old files for testing

• KNOWN BUG: Win7 and Python 2.7.10 - can’t build Cython extension with MingW32, use Python 2.7.9 instead

• KNOWN BUG: Win7 and Python 3.5.0 - can’t build Cython extension with MingW32 but work with VC2015

Version 0.7.4 - 2014-05-23

• NEW: added support for R12 2d splines (by POLYLINE); POLYLINE.mode == “spline2d”

• NEW: TEXT.plain_text(), removes format codes like &&u and transforms %%d to °

• BUGFIX: unicode/str error in Cython extension for Python 2.7

• BUGFIX: every LWPolyline in DXF version > AC1009 had default thickness of 0.0

• BUGFIX: Polyline.width had incorrect values

Version 0.7.3 - 2014-05-16

• NEW: options = {"assure_3d_coords": True}, guarantees (x, y, z) tuples for ALL coordinates, this option is by default False

• NEW: extended TrueColor() class, see docs

• NEW: dxfgrabber.aci_to_true_color(index) returns the DXF default true color value for AutoCAD Color Index index as TrueColor()

• NEW: added is_backwards, is_upside_down, width, oblique, font, bigfont attributes to TEXT, ATTRIB, ATTDEF entities

• NEW: added plain_text() method to TEXT, ATTRIB and ATTDEF to get text content without formatting codes like ‘%%u’

• NEW: added font, bigfont, rect_width, horizontal_width and vertical_height attributes to MTEXT

• NEW: added resolve_text_styles(text_styles) method to TEXT, ATTRIB, ATTDEF, MTEXT entities

• NEW: new import option “resolve_text_styles” and it is True by default

• NEW: added extrusion direction to all entities

• NEW: added row_count, col_count, row_spacing, col_spacing attributes to INSERT.

• NEW: MText.plain_text(split=False) tries to remove format codes, returns a single string or a list of strings

• NEW: added n_smooth_density, m_smooth_density, smooth_type to Polymesh

• NEW: added smooth_type to Polyface

• CHANGE: LWPolyline again: LWPolyline.points list of (x, y) or (x, y, z) depends on “assure_3d_coords”, LWPolyline.width list of (start-width, end-width), .bulge list of floats, removed LWPolyline.get_rstrip_points() and added .const_width attribute (if != 0, ignore .width list).

• CHANGE: Polyline method points() is now a field (list) and added lists for width and bulge for consistent APIs of LWPolyline and Polyline.

• BUGFIX: wrong DXF subclass for Arc.extrusion (error in DXF Standard)

Version 0.7.2 - 2014-05-09

• NEW: grabs SAB data of BODY, 3DSOLID, … entities for DXF version AC1027 (R2013) and later

• NEW: support for dxf attributes: true_color (AC1018), transparency (AC1018), shadow_mode (AC1021) in prior DXF versions this attributes are set to None.

• NEW: using Cython for some speed optimizations, but Cython is not a installation requirement; control the Cython extension by environment variable DXFGRABBER_CYTHON = ON|OFF, by default the Cython extension is activated.

• CHANGED: LWPolyline.points are always 5-tuples (x, y, start_width, end_width, bulge)

Version 0.7.1 - 2014-05-02

• BUGFIX: now really accept floats as int (thanks to ProE)

Version 0.7.0 - 2014-05-01

• NEW: support for MESH entity

• NEW: support for LIGHT entity

• NEW: support for SUN entity

• NEW: support for HELIX entity

• NEW: support for BODY entity, you get the ACIS code

• NEW: support for 3DSOLID entity, you get the ACIS code

• NEW: support for REGION entity, you get the ACIS code

• NEW: support for SURFACE entity, you get the ACIS code

• NEW: support for undocumented PLANESURFACE entity, you get the ACIS code

• BUGFIX: accept floats as int (thanks to ProE)

Version 0.6.1 - 2014-04-25

• BUGFIX: support for undocumented VERTEX subclass ‘AcDbFaceRecord’ without preceding ‘AcDbVertex’

• extended the Polyface entity, see new docs

Version 0.6.0 - 2014-01-09

• skip comment tags (999)

• dxfversion defaults to ‘AC1009’, if no header variable $ACADVER exists

• can open minimalistic DXF12 files (without HEADER, TABLES and BLOCKS section)

• added support for STYLE table

• added support for LTYPE table

Version 0.5.2 - 2013-05-20

• bugfix: fixed *nix newline problem in readfile_as_asc()

Version 0.5.1 - 2013-05-20

• updated docs - added a Howto section

• added attribute frozen to class Layer()

• index operator for: Drawing.layers[layername]

• added modelspace() and paperspace() iterators to class Drawing()

• supported Python versions: CPython 2.7, CPython 3.3, pypy - no explicit testing with CPython 3.2

Version 0.5.0 - 2013-05-04

• beta status

• solved problems with ‘utf-8’ and codepage ANSI_936 encoded dxf files

Version 0.4.0 - 2012-08-12

• beta status

Version 0.1.0 - 2012-07-21

• Initial setup