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This Python package is designed to facilitate the creation and manipulation of DXF documents, with compatibility across various DXF versions. It empowers users to seamlessly load and edit DXF files while preserving all content, except for comments.
Any unfamiliar DXF tags encountered in the document are gracefully ignored but retained for future modifications. This feature enables the processing of DXF documents containing data from third-party applications without any loss of valuable information.
ezdxf is a Python package to create new DXF files and read/modify/write
existing DXF documentsmypy --ignore-missing-imports -p ezdxf successfulezdxf to display, convert and inspect DXF filesAdditional packages required for these add-ons are not automatically installed during the basic setup, for more information about the setup & dependencies visit the documentation.
drawing add-on is a translation layer to send DXF data to a render backend,
interfaces to matplotlib, which can export
images as PNG, PDF or SVG, and PyQt5 are implemented.r12writer add-on to write basic DXF entities direct and fast into a DXF R12
file or streamiterdxf add-on to iterate over DXF entities from the modelspace of huge DXF
files (> 5GB) which do not fit into memoryImporter add-on to import entities, blocks and table entries from another DXF documentdxf2code add-on to generate Python code for DXF structures loaded from DXF
documents as starting point for parametric DXF entity creationacadctb add-on to read/write plot style files (CTB/STB)pycsg add-on for basic Constructive Solid Geometry (CSG) modelingMTextExplode add-on for exploding MTEXT entities into single-line TEXT entitiestext2path add-on to convert text into outline pathsgeo add-on to support the __geo_interface__meshex for exchanging meshes with other tools as STL, OFF or OBJ filesopenscad add-on, an interface to OpenSCADodafc add-on, an interface to the ODA File Converter
to read and write DWG fileshpgl2 add-on for converting HPGL/2 plot files to DXF, SVG and PDFA simple example:
import ezdxf
from ezdxf import colors
from ezdxf.enums import TextEntityAlignment
# Create a new DXF document.
doc = ezdxf.new(dxfversion="R2010")
# Create new table entries (layers, linetypes, text styles, ...).
doc.layers.add("TEXTLAYER", color=colors.RED)
# DXF entities (LINE, TEXT, ...) reside in a layout (modelspace,
# paperspace layout or block definition).
msp = doc.modelspace()
# Add entities to a layout by factory methods: layout.add_...()
msp.add_line((0, 0), (10, 0), dxfattribs={"color": colors.YELLOW})
msp.add_text(
"Test",
dxfattribs={
"layer": "TEXTLAYER"
}).set_placement((0, 0.2), align=TextEntityAlignment.CENTER)
# Save the DXF document.
doc.saveas("test.dxf")
Example for the r12writer, which writes a simple DXF R12 file without in-memory structures:
from random import random
from ezdxf.addons import r12writer
MAX_X_COORD = 1000
MAX_Y_COORD = 1000
with r12writer("many_circles.dxf") as doc:
for _ in range(100000):
doc.add_circle((MAX_X_COORD*random(), MAX_Y_COORD*random()), radius=2)
The r12writer supports only the ENTITIES section of a DXF R12 drawing, no HEADER, TABLES or BLOCKS section is present, except FIXED-TABLES are written, than some additional predefined text styles and line types are available.
Basic installation by pip including the optional C-extensions from PyPI as binary wheels:
pip install ezdxf
Full installation with all dependencies (matplotlib, PySide6) for using the drawing add-on:
pip install ezdxf[draw]
For more information about the setup & dependencies visit the documentation.
Use python -m ezdxf ... if your shell can't find the ezdxf script.
Get additional help for a sub-command:
ezdxf <cmd> -h
Preview DXF files in a graphical window:
ezdxf view <file.dxf>
Export the modelspace of DXF files as PNG|SVG|PDF:
ezdxf draw -o file.<png|svg|pdf> <file.dxf>
Print basic information about DXF files:
ezdxf info <file.dxf>
Show detailed information and structures of DXF files:
ezdxf browse <file.dxf>
Audit DXF files:
ezdxf audit <file.dxf>
Preview and convert HPGL/2 plot files:
ezdxf hpgl <file.plt>
Documentation of the development version at https://ezdxf.mozman.at/docs
Documentation of the latest release at https://ezdxf.readthedocs.io/
The knowledge graph contains additional information beyond the documentation and is
managed by logseq. The source data is included in the repository
in the folder ezdxf/notes. There is also a HTML export
on the website which gets regular updates.
The source code of ezdxf can be found at GitHub, target your pull requests
to the master branch:
https://github.com/mozman/ezdxf.git
Questions and feedback at GitHub Discussions:
https://github.com/mozman/ezdxf/discussions
Questions at Stack Overflow:
Post questions at stack overflow and use the tag dxf or ezdxf.
Issue tracker at GitHub:
http://github.com/mozman/ezdxf/issues
The release notes are included in the knowledge graph.
The changelog is included in the knowledge graph.
Please always post questions at the forum or stack overflow to make answers available to other users as well.
Feedback is greatly appreciated.
Manfred
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