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JDrafting is an open source Java application to create Technical Drawing exercises.
This application is inspired by the 'Classical Construction', also known as 'Ruler-and-compass Construction' or 'Compass-and-straightedge construction'. However, another drawing tools can be used.
(More info about classical construction: https://en.wikipedia.org/w/index.php?title=Compass-and-straightedge_construction)
Download examples in 'Files tab'
JRE 8+...
Euclide is a dynamic geometry application written in Java. It allows creation of geometric shapes (lines, points, circles, conics...) and transforms (rotation, symmetry...), which depend each other. Moving a shape will also move shapes dependent on it.
Using this tool you can Generate the class diagram for any class inside jar , It also have facility to import class diagram to png or jpg format. This project is under development. Please request the feature if needed.
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Open Factory 3D is a free factory design application that helps you to place your machines and factory equipment on a factory 2D plan, with a 3D preview.
TeXGrapher is an application for drawing graphs and exporting them into code for GraphTeX, which is a package for LaTeX that provides macros for specifying drawings within LaTeX source file.
QCAD is an application for computer aided drafting (CAD) in two dimensions (2D). With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schematics and diagrams. QCAD works on Windows, Mac OS X and many Linux and Unix Systems.
A Java-based tool for creating, designing and distributing graphical trees that represent syntactic construction of sentences. Useful for drawing trees under X-bar generative theory or any other correlated application.
Knotwork is a graphical application to create knotworks in a celtic, arabic or viking style. User draws a graph defined by vertices and edges, which gives the basis for building the knotwork. Web page: http://knotwork.sourceforge.net/index.html
A parametric, feature-based, sketch-driven 3D CAD application, built around a geometrical constraint solving engine. Project is in early development stage. The FreeSG library (http://freesg.org/) is required.
Application for astronomical photos processing. Intended mainly for amateur astrophotography, for catching "beauty of the universe" rather than some serious scientific data. Includes automatic image registration.