Drawing Lewis Structures

Flash Vector Drawing(aka faved) is a tool for flash developers to extract vector shapes from pictures. It uses native flash drawing(lineTo, curveTo, etc.) and allows to export the drawn picture into flash code(specially formatted or pure). Platforms: Windows, Mac, Linux

A Fortran 95 implementation of an algorithm for generating derivative structures of a parent lattice. The algorithm is discussed in detail in: Gus L. W. Hart and Rodney Forcade, 'A new approach to generating derivative structures,' Phys. Rev B. (20 Platforms: Mac, BSD, Linux

Ipe is an extensible drawing editor for creating figures in PDF and Postscript format. It supports making small figures for inclusion into LaTeX-documents as well as presentations in PDF. Platforms: Windows, Mac, BSD, Linux

Tcl/Tk library for active diagram drawing using Poet (Prototype Object Extension for Tcl) Platforms: Windows, Mac, Linux

Collaborate with friends and family with Whiteboard, the easy-to-use collaborative drawing app for iPhone, iPod touch, iPad, and Mac. Two users can create pictures together over local Wi-Fi peer-to-peer. Wireless collaboration between Mac and iOS is supported by Whiteboard for iOS, available on... Platforms: Mac

FlatMol a molecule drawing tool for the educator or student Simple and flat, chemical structures made with this program are designed to be compatible with a paper surface rather than to compete with 3D models. Tips: Platforms: Mac

Whiteboard Pro Collaborative Drawing is a fun app that allows two users to draw together on the same canvas. It works with other editions of Whiteboard, both on Mac and iOS: - Whiteboard Collaborative Drawing for Mac - Whiteboard Inte Platforms: Mac

PHPCad Drawing Program is a CAD/painting program written in PHP. The user requires no detailed drawing skill. All objects are functions placed on the screen by defining one or two points with parameters for the object. Produces .png-.jpg-.gif(animated)-.mpg-.pov pictures. This program is mainly... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

C.S. Lewis is the author of the Chronicles of Narnia.InstallationUnpack and upload it to the /wp-content/plugins/ directory.Activate the plugin through the 'Plugins' menu in WordPress. Requirements: - WordPress 2.0.2 or higher Platforms: Windows, Mac, *nix, PHP, BSD Solaris

XDrawChem is a two-dimensional molecule drawing program. It is similar in functionality to other molecule drawing programs such as ChemDraw (TM, CambridgeSoft). It can read and write MDL Molfiles, and read ChemDraw text and binary files, to allow sharing between XDrawChem and other chemistry... Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

This solver computes the internal loads on each member of two dimensional isostatic truss structures by using the method of joints.Since the Theory of Deformations is not considered in this program, displacements of the structures are not computed. All assumptions of Rational Mechanics are made... Platforms: Matlab

UNFOLD_STRUCTURE Unfold and show the content of the given structure.UNFOLD_STRUCTURE(STRUCT) shows recursively the content of the given structure STRUCT. Clean and generic implementation which can be easily extended, e.g. for structures containing cells. Platforms: Matlab

This book disassembles the entire finite element method for civil engineering students and professionals, detailing its supportive theory and its mathematical and structural underpinnings in the context of elastic structures and the principle of virtual work.For a full book description and... Platforms: Matlab

PlotAS Linear plot of an arrays of structures This function is used to plot arrays of structures, like those recieved from shaperead. It will autorecognize some common coordinate field names. The user may also specify their own. It will take in all the LineSpec and PropertyName/PropertyValue... Platforms: Matlab

v2struct has dual functionality in packing & unpacking variables into structures and vice versa, according to the syntax and inputs.Function features: * Pack variables to structure with enhanced field naming * Pack and update variables in existing structure * Unpack variables from structure with... Platforms: Matlab

Report generating and drawing can compose the definition of report tables that display data retrieved from given SQL query results.The report table definitions include the SQL query, query result grouping fields, result columns to be used as report fields, callback functions to format field... Platforms: PHP

This tool is a GUI for the analysis of the TE/TM plane waves propagation through structures composed by multiple layers with different electromagnetic characteristics.The GUI provides graphical results as well as detailed calculations of the transmission line equivalent circuit model. Also... Platforms: PHP

TreeForm Syntax tree drawing software is a Linguistic Syntax/Semantics tree drawing editor. Designed for graphical n-ary tree drawing. Linux users must start TreeForm in the console from the install directory location with "java -jar TreeForm.jar". Platforms: *nix

CAD::Drawing::IO::OpenDWG - Accessor methods for OpenDWG toolkit wrapper Platforms: *nix

An easy-to-use, yet powerful drawing program. Supports multiple page document, speller, vector drawing, import and export to image files, multi-column and curved text, and tables. Great for creating brochures, graphics, and patterns. Free reader (PageFocus Reader) available for download. Platforms: Windows