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Dia (software)

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Diagramming software
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Dia
Dia 0.97 in Norwegian on Windows Vista
Original author Alexander Larsson
Developer Dia developers
Release31August 1998;27 years ago(1998年08月31日)[1]
Stable release
0.97.3[2] Edit this on Wikidata / 5 September 2014
Written inC
Operating system Windows, OS X, Linux, Unix
Type Diagramming software
License GPL-2.0-or-later
WebsiteGNOME Apps
Repository gitlab.gnome.org/GNOME/dia/ (upstream), github.com/GNOME/dia (mirror)

Dia (/ˈdiːə/ )[3] is free and open source general-purpose diagramming software, developed originally by Alexander Larsson.[1] It uses a controlled single document interface (SDI) similar to GIMP and Inkscape.

Features

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Dia has a modular design with several shape packages available for different needs: flowchart, network diagrams, circuit diagrams, and more. It does not restrict symbols and connectors from various categories from being placed together.[4]

Dia has special objects to help draw entity-relationship models, Unified Modeling Language (UML) diagrams, flowcharts, network diagrams, and simple electrical circuits. It is also possible to add support for new shapes by writing simple XML files, using a subset of Scalable Vector Graphics (SVG) to draw the shape.[5]

Dia loads and saves diagrams in a custom XML format which is, by default, gzipped to save space. It can print large diagrams spanning multiple pages[6] and can also be scripted using the Python programming language.

Exports

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Dia can export diagrams to various formats, including:

  • EPS (Encapsulated PostScript)
  • SVG (Scalable Vector Graphics)
  • DXF (Autocad's Drawing Interchange format)
  • CGM (Computer Graphics Metafile, defined by ISO standard 8632)
  • WMF (Windows Meta File)
  • PNG (Portable Network Graphics)
  • JPEG (Joint Photographic Experts Group)
  • VDX (Microsoft's XML for Visio Drawing)

Development

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Dia was originally created by Alexander Larsson[3] but he moved on to work on GNOME and other projects. James Henstridge took over as lead developer, but he also moved on to other projects. He was followed by Cyrille Chepelov, then Lars Ræder Clausen.

Dia is currently maintained by Hans Breuer, Steffen Macke and Sameer Sahasrabuddhe.

It is written in C, and has an extension system which also supports writing extensions in Python.

See also

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References

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  1. 1 2 Larsson, Alexander (31 August 1998). "Initial revision". GitLab Dia Repository. Retrieved 2 August 2020.
  2. ↑ "dia-0.97.3: 2014年09月05日". 5 September 2014.
  3. 1 2 "Dia Frequently Asked Questions" . Retrieved 2008年08月12日.
  4. ↑ "Network Diagram Open source SW". Fedora Discussion. 2021年12月18日. Retrieved 2025年03月12日.
  5. ↑ "Dia (software)". www.seomastering.com. Retrieved 2025年03月12日.
  6. ↑ "Dia". ohloh. Geeknet, Inc. Retrieved 2010年05月30日.
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