Open Source Drawing Software

A multiplatform vector drawing program with a complete library of electronic symbols. Schematics and drawings are stored in a very compact text format. There is no netlist concept behind the drawings (so no simulation, and this is a choice) but this allows a great graphical flexibility and ease of use, making FidoCadJ the perfect tool for exchange sketches in forum and newsgroup discussions with a few clicks. Drawings can be exported in several graphic formats, such as pdf. Follow the development live on Twitter: https://twitter.com/davbucci

ORIPA S is a drawing tool specifically designed for a origami crease pattern. It is derived from ORIPA which is developed by MITANI Jun. New features by ORIPA S are: - save current crease pattern as a image file (jpeg, png) not only original project file. - while pasting, select a point on pattern to be matched against destination point. - Some considerable bugs are fixed (i.e., wrong undo behavior on ORIPA v0.35). This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

The Madeline 2.0 Pedigree Drawing Engine is a pedigree drawing program designed to handle large and complex pedigrees with an emphasis on readability and aesthetics. PLEASE NOTE THAT as of 2015.09.30, the most current Madeline source code tree is now maintained on GITHUB at https://github.com/piratical/Madeline_2.0_PDE .

VisualMaths is a 2D curve drawing program (3D and dynamic curves not yet available). User defines objects (functions,variables,arrays) and assign each object to a curve and an axis. VisualMaths also provides some graphic solvers : minima, maxima.