A Python package to create/manipulate DXF drawings.
Project description
ezdxf
Abstract
A Python package to create and modify DXF drawings, independent from the DXF version. You can open/save every DXF file without loosing any content (except comments), Unknown tags in the DXF file will be ignored but preserved for saving. With this behavior it is possible to open also DXF drawings that contains data from 3rd party applications.
Quick-Info
ezdxf is a Python package to read and write DXF drawings
intended audience: Developer
requires Python 2.7 or later, runs on CPython and pypy, maybe on IronPython and Jython
OS independent
additional required packages: pyparsing
MIT-License
supported DXF versions: R12, R2000, R2004, R2007, R2010 and R2013, reads also older versions but saves it as R12
preserves third-party DXF content
a simple example:
import ezdxf drawing = ezdxf.new(dxfversion='AC1024') modelspace = drawing.modelspace() modelspace.add_line((0, 0), (10, 0), dxfattribs={'color': 7}) drawing.layers.create('TEXTLAYER', dxfattribs={'color': 2}) modelspace.add_text('Test', dxfattribs={'insert': (0, 0.2), 'layer': 'TEXTLAYER'}) drawing.saveas('test.dxf')
Installation
Install with pip:
pip install ezdxf
or from source:
python setup.py install
Documentation
The source code of ezdxf can be found on bitbucket.org at:
Feedback
Issue Tracker at:
https://bitbucket.org/mozman/ezdxf/issues
Feedback, Q&A, Discussions at Google Groups:
https://groups.google.com/d/forum/python-ezdxf
Mailing List:
Feedback is greatly appreciated.
Manfred
News
Version 0.7.1 - 2016-02-21
Supported/Tested Python versions: CPython 2.7, 3.4, 3.5, pypy 4.0.1 and pypy3 2.4.0
NEW: read legacy DXF versions older than AC1009 (DXF R12) and saves it as DXF version AC1009.
NEW: added methods is_frozen(), freeze(), thaw() to class Layer()
NEW: full support for DXF entity ELLIPSE (added add_ellipse() method)
NEW: MESH data editor - implemented add_face(vertices), add_edge(vertices), optimize(precision=6) methods
BUGFIX: creating entities on layouts works
BUGFIX: entity ATTRIB - fixed halign attribute definition
CHANGE: POLYLINE (POLYFACE, POLYMESH) - on layer change also change layer of associated VERTEX entities
Version 0.7.0 - 2015-11-26
Supported Python versions: CPython 2.7, 3.4, pypy 2.6.1 and pypy3 2.4.0
NEW: support for DXF entity HATCH (solid fill, gradient fill and pattern fill), pattern fill with background color supported
NEW: support for DXF entity GROUP
NEW: VIEWPORT entity, but creating new viewports does not work as expected - just for reading purpose.
NEW: support for new common DXF attributes in AC1018 (AutoCAD 2004): true_color, color_name, transparency
NEW: support for new common DXF attributes in AC1021 (AutoCAD 2007): shadow_mode
NEW: extended custom vars interface
NEW: dxf2html - added support for custom properties in the header section
NEW: query() supports case insensitive attribute queries by appending an ‘i’ to the query string, e.g. ‘*[layer==”construction”]i’
NEW: Drawing.cleanup() - call before saving the drawing but only if necessary, the process could take a while.
BUGFIX: query parser couldn’t handle attribute names containing ‘_’
CHANGE: renamed dxf2html to pp (pretty printer), usage: py -m ezdxf.pp yourfile.dxf (generates yourfile.html in the same folder)
CHANGE: cleanup file structure
Version 0.6.5 - 2015-02-27
BUGFIX: custom properties in header section written after $LASTSAVEDBY tag - the only way AutoCAD accepts custom tags
Version 0.6.4 - 2015-02-27
NEW: Support for custom properties in the header section - Drawing.header.custom_vars - but so far AutoCAD ignores new created custom properties by ezdxf- I don’t know why.
BUGFIX: wrong DXF subclass for Arc.extrusion (error in DXF Standard)
BUGFIX: added missing support files for dxf2html
Version 0.6.3 - 2014-09-10
Beta status
BUGFIX: Text.get_pos() - dxf attribute error “alignpoint”
Version 0.6.2 - 2014-05-09
Beta status
NEW: set ezdxf.options.compress_default_chunks = True to compress unnecessary Sections (like THUMBNAILIMAGE) in memory with zlib
NEW: Drawing.compress_binary_data() - compresses binary data (mostly code 310) in memory with zlib or set ezdxf.options.compress_binary_data = True to compress binary data of every drawing you open.
NEW: support for MESH entity
NEW: support for BODY, 3DSOLID and REGION entity, you get the ACIS data
CHANGE: Spline() - removed context managers fit_points(), control_points(), knot_values() and weights() and added a general context_manager edit_data(), similar to Mesh.edit_data() - unified API
CHANGE: MText.buffer() -> MText.edit_data() - unified API (MText.buffer() still exists as alias)
CHANGE: refactored internal structure - only two DXF factories remaining:
LegacyDXFFactory() for AC1009 (DXF12) drawings
ModernDXFFactory() for newer DXF versions except DXF13/14.
BUGFIX: LWPolyline.get_rstrip_point() removed also x- and y-coords if zero
BUGFIX: opens DXF12 files without handles again
BUGFIX: opens DXF12 files with HEADER section but without $ACADVER set
Version 0.6.1 - 2014-05-02
Beta status
NEW: create new layouts - Drawing.create_layout(name, dxfattribs=None)
NEW: delete layouts - Drawing.delete_layout(name)
NEW: delete blocks - Drawing.blocks.delete_block(name)
NEW: read DXF files from zip archives (its slow).
CHANGE: LWPolyline returns always 5-tuples (x, y, start_width, end_width, bulge). start_width, end_width and bulge is 0 if not present.
NEW: LWPolyline.get_rstrip_points() -> generates points without appending zeros.
NEW: LWPolyline.rstrip_points() -> context manager for points without appending zeros.
BUGFIX: fixed handle creation bug for DXF12 files without handles, a code 5/105 issue
BUGFIX: accept floats as int (thanks to ProE)
BUGFIX: accept entities without owner tag (thanks to ProE)
improved dxf2html; creates a more readable HTML file; usage: python -m ezdxf.dxf2html filename.dxf
Version 0.6.0 - 2014-04-25
Beta status
Supported Python versions: CPython 2.7, 3.4 and pypy 2.2.1
Refactoring of internal structures
CHANGE: appended entities like VERTEX for POLYLINE and ATTRIB for INSERT are linked to the main entity and do not appear in layouts, model space or blocks (modelspace.query(‘VERTEX’) is always an emtpy list).
CHANGE: refactoring of the internal 2D/3D point representation for reduced memory footprint
faster unittests
BUGFIX: opens minimalistic DXF12 files
BUGFIX: support for POLYLINE new (but undocumented) subclass names: AcDbPolyFaceMesh, AcDbPolygonMesh
BUGFIX: support for VERTEX new (but undocumented) subclass names: AcDbFaceRecord, AcDbPolyFaceMeshVertex, AcDbPolygonMeshVertex, AcDb3dPolylineVertex
CHANGE: Polyline.get_mode() returns new names: AcDb2dPolyline, AcDb3dPolyline, AcDbPolyFaceMesh, AcDbPolygonMesh
CHANGE: separated layout spaces - each layout has its own entity space
Version 0.5.2 - 2014-04-15
Beta status
Supported Python versions: CPython 2.7, 3.3, 3.4 and pypy 2.2.1
BUGFIX: ATTRIB definition error for AC1015 and later (error in DXF specs)
BUGFIX: entity.dxf_attrib_exists() returned True for unset attribs with defined DXF default values
BUGFIX: layout.delete_entity() didn’t delete following data entities for INSERT (ATTRIB) & POLYLINE (VERTEX)
NEW: delete all entities from layout/block/entities section
cleanup DXF template files
Version 0.5.1 - 2014-04-14
Beta status
Supported Python versions: CPython 2.7, 3.3, 3.4 and pypy 2.2.1
BUGFIX: restore Python 2 compatibility (has no list.clear() method); test launcher did not run tests in subfolders, because of missing __init__.py files
Version 0.5.0 - 2014-04-13
Beta status
BUGFIX: Drawing.get_layout_setter() - did not work with entities without DXF attribute paperspace
NEW: default values for DXF attributes as defined in the DXF standard, this allows usage of optional DXF attributes (with defined default values) without check of presence, like entity.dxf.paperspace.
NEW: DXF entities SHAPE, RAY, XLINE, SPLINE
NEW: delete entities from layout/block
CHANGE: entity 3DFACE requires 3D coordinates (created by add_3Dface())
CHANGE: LWPolyline all methods return points as (x, y, [start_width, [end_width, [bulge]]]) tuples
updated docs
Version 0.4.2 - 2014-04-02
Beta status
Supported Python versions: CPython 2.7, 3.3, 3.4 and pypy 2.1
NEW: DXF entities LWPOLYLINE, MTEXT
NEW: convenience methods place(), grid(), get_attrib_text() and has_attrib() for the Insert entity
CHANGE: pyparsing as external dependency
BUGFIX: iteration over drawing.entities yields full functional entities (correct layout attribute)
BUGFIX: install error with pip and missing DXF template files of versions 0.4.0 & 0.4.1
Version 0.3.0 - 2013-07-20
Alpha status
Supported Python versions: CPython 2.7, 3.3 and pypy 2.0
NEW: Entity Query Language
NEW: Import data from other DXF files
CHANGE: License changed to MIT License
Version 0.1.0 - 2010-03-14
Alpha status
Initial release
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.