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XTrackCAD is a open-source, free, CAD program for designing model railroad layouts. You can easily create layout of any scale or size. Libraries for many brands, scales and gauges of track and turnouts/points and model structures are included. Adding new components is easy with the built-in editor. It runs on Windows, Mac and Linux,
Xournal is a GTK+/Gnome application for notetaking, sketching, keeping a journal using a stylus on Tablet PCs and other platforms. It aims to provide superior graphical quality (subpixel resolution) and overall functionality.
A useful utility for producing stick figure animations, and then afterwords output the animations to formats such as 8-bit PNG files. Another goal is to output a x3d format world.
Agar provides a base GUI framework and a standard set of widgets from which graphical applications can be built which run natively under X11, Windows, MacOS, SDL and others. It takes advantage of texture and GPU acceleration wherever available. Agar can also attach to an existing framebuffer, SDL or OpenGL context and operate as a self-contained window-manager.
It includes a standard library of general-purpose widgets, and is also designed to be extended externally. New widgets can be...
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Takes standard printer output produced by a DOS application, and forwards it to a default or selected Windows printer. Converts code page, strips empty pages, supports BOX DRAWINGS chars. Works on all Windows platforms. Written in Borland DELPHI.
Sodipodi is general vector illustrating application for Linux/Unix and Windows. It uses W3C SVG as native file and in-memory image format and can do many neat things.
XDraft is a mechanical drawing editor similar to XFig or various Windoze cad programs, but geared towards more precise drawing. XDraft adds input constraints and other features that makes it highly suitable for power users. Also includes dimensioning.
Box is a language specifically designed to make vector graphics easy plus a integrated development environment which facilitates the use of the language by interactively showing the graphical output. Box combines the convenience of drawing figures with the mouse with the convenience of describing them with a language tailored for vector graphics.
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Free drawing software for Windows, Mac OS X, and Linux
Dia Diagram Editor is free Open Source drawing software for Windows, Mac OS X and Linux. Dia supports more than 30 different diagram types like flowcharts, network diagrams, database models. More than a thousand readymade objects help to draw professional diagrams. Dia can read and write a number of different raster and vector image formats. Software developers and database specialists can use Dia as a CASE tool to generate code skeletons from their drawings. Dia can be scripted and extended...
Why do Archicad and Revit only share 30 or 40% of the global architectural sofware market ? Maybe because lots of small practices find these software unadapted to the way they work, and to their bank account.
I think there's place for an open software that doesn't work like the existing. It will be simple in its tools and processes, and will have infinite capabilities. This will be possible by defining a logical structure.
As I am an architect, and I know very little about programming,...
NOTE: FontForge has moved to fontforge.github.io, newer binaries and sources are available at github.com/fontforge.
FontForge allows you to edit outline and bitmap fonts. You may create new ones or modify old ones. It is also a format converter and can interconvert between PostScript (ascii & binary Type1, some Type3, some Type0), TrueType, OpenType (Type2), CID, SVG
A powerful C++ class library for image manipulation
ImageStone is a powerful C++ class library for image manipulation. Its features include load, save, display, transformation, and nearly 100 special image effects. It can be used cross platform (includes Windows, Linux, Mac), and especially under windows it can be used as a DIB wrapper class.
A set of library functions to generate pPostScript plots to file or printer. Several levels of user interface, highest level includes virtual windows, autoscale etc. Supported graphs are linear, logarithmic and polar plots. Lower levels include standard
a collection of C++ classes (added a C version of the polygon stuff) dealing with paths, and polygons: filling, stroking, rasterizing, boolean operations, insets, offsets, anti-aliasing. Also classes to compute voronoi diagrams of sets of points and voro
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.
Fandango, formerly and internally know as elcad. It is a python scripted 3d CAD application; the core is programmed on C++, and interface functions are exported to python to be used as building blocks for new commands.
DiaCanvas is a library for drawing diagrams. It is completely Model/View/Controller based and has a Visio (DIA) look. The package also contains a Python wrapper for the library.
The aim of this project is to export the xfigure library (.xfig) to provide free stencils/shapes for kivio (.sml) and OpenOffice.org/StarOffice (.sxd,.wmf).
The images (over 900) can be used in the OpenOffice.org`s Gallery.