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+[#]: subject: "Gaphor: Open Source Graphical Modeling Tool"
+[#]: via: "https://itsfoss.com/gaphor-modeling-tool/"
+[#]: author: "Abhishek Prakash https://itsfoss.com/author/abhishek/"
+[#]: collector: "lujun9972"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+Gaphor: Open Source Graphical Modeling Tool
+======
+
+Gaphor is a free and open source modeling application with support for various modeling languages such as UML, [SysML][1], RAAML and C4.
+
+Not aware of the term “modeling language”? Basically, it’s a set of instructions that can be used to create the design and constructions of structures. It could be textual and graphical, both.
+
+The graphical one is easier to look at and figure out how various components of the project are related to each other.
+
+Have you seen a flowchart or sequence diagrams? Those are also a type of graphical modeling in the simplest form.
+
+![Sequence diagram example][2]
+
+There are various modeling languages and they are used for software development, system engineering, physics, project management and more.
+
+### Gaphor for UML, SysML and more
+
+[Gaphor][3] works with the UML, SysML, and RAAML OMG standards. It also includes support for the C4 model for visualizing software architectures.
+
+It’s not just a [drawing tool][4]. It implements a fully-compliant UML 2 data model. You can create highly complex models with Gaphor.
+
+![][5]
+
+Written in Python, Gaphor is completely open source under Apache 2 license. You can find all its source code on [its GitHub repository][6]. It is a cross-platform tool and available to install on Linux, Windows and macOS.
+
+You can export your diagrams in PDF, PNG, SVG and XML formats. You can also plug-in a code generator.
+
+Gaphor website mentions that it has dark mode but I didn’t see any options to enable it in the AppImage version I downloaded.
+
+### Installing Gaphor on Linux
+
+![Gaphor user interface][7]
+
+Arch users can find Gaphor in the AUR. For other distributions, you have the choice of choosing between [AppImage][8] and Flatpak.
+
+You can download the AppImage from its download page.
+
+[Download Gaphor][9]
+
+If you want to use the Flatpak version, add the Flathub repository first:
+
+```
+
+    flatpak remote-add --user --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+
+```
+
+And then install it:
+
+```
+
+    flatpak install --user flathub org.gaphor.Gaphor
+
+```
+
+Since Gaphor is essentially a Python application, you can install it [using Pip][10] as well.
+
+```
+
+    pip install gaphor
+
+```
+
+I used UML and sequence diagrams when I worked as a software engineer. I haven’t used it in the last few years. Looking at Gaphor, I think it’s a pretty cool app to have if you have to create UML and other diagrams for your projects.
+
+Feel free to give it a try and share your experience in the comments.
+
+--------------------------------------------------------------------------------
+
+via: https://itsfoss.com/gaphor-modeling-tool/
+
+作者：[Abhishek Prakash][a]
+选题：[lujun9972][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://itsfoss.com/author/abhishek/
+[b]: https://github.com/lujun9972
+[1]: https://sysml.org/
+[2]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/12/sequence-diagram-example-800x364.png?resize=800%2C364&ssl=1
+[3]: https://gaphor.org/
+[4]: https://itsfoss.com/open-source-paint-apps/
+[5]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2021/12/gaphor-uml-screenshot.jpg?resize=800%2C570&ssl=1
+[6]: https://github.com/gaphor
+[7]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2021/12/gaphor-example-800x445.png?resize=800%2C445&ssl=1
+[8]: https://itsfoss.com/use-appimage-linux/
+[9]: https://gaphor.org/download.html#linux
+[10]: https://itsfoss.com/install-pip-ubuntu/