The HELM editor allows the user to create and manipulate large macromolecules. You can import and export in a variety of formats, but HELM underlies the internal processes.
Trial Versions
We have compiled the code so you can try the HELM editor for yourself.
HELM Editor via Java Web Start
HELM Editor local installation pack
User Guides
HELM Editor User Guide (document)
Videos - NB there is no sound on these videos
Source Code
Source code on GitHub
Technical Documentation
HELM Editor Release notes and API Specification
http://pistoiahelm.github.io/HELM_Notation_ToolkitEditor_Release_Notes.html
Licenses and restrictions
HELM is an open source project released under the MIT license. However it currently has some dependencies on third party tools.
- HELM Editor requires yFiles for Java version 2.6 or higher and GraphML extension from yWorks. If you wish to use the compiled software directly there is no need to buy a licence. If you wish to develop the software for your own use, trial versions of such libraries can be downloaded from yWorks at www.yworks.com. You need to update the ant build file with regard to yfiles.dir and jar file names before compiling and running the project.
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