Metamolecular Company Blog

ChemWriter 1.2.1 Improves the Handling of Stereo Bonds

ChemWriter 1.2.1 is now available for download.

This version resolves two issue related to creating and editing wedge and hash bonds (stereo bonds):

1. Clicking on a stereo bond when the bond tool is activated gives a non-stereo bond that can then be cycled through single/double/triple bond multiplicity.
2. Clicking on a multiple bond when the wedge or hash bond tool is activated now results in the multiple bond being replaced with a wedge or hash bond, respectively.

Better Rendering Control with ChemWriter 1.2.0

ChemWriter 1.2.0 is now available for download. This version includes support for improved rendering control and a convenience method:

• Implemented isBlank() for both EditorApplet and PainterApplet.
• Implemented virtualizeHydrogens parameter and accompanying is/setVirtualizeHyrogens methods for both EditorApplet and PainterApplet.
• Implemented get/setBorderWidth method to accompany existing borderWidth parameter.
• Implemented get/setLineEndPadding, which allows for proportional spacing between the end of a line and the atom labels with which it meets.

ChemWriter 1.1.6 Includes Enhanced Demos

ChemWriter 1.1.6 is now available for download.

This version features revised demos illustrating typical uses of ChemWriter:

• Simple Editor Deployment
• Transferring Structures
• Interactive Editor API
• Interactive Painter API
• Preloading the Editor
• Table View
• Cell View
• Installing Java

All demos can also be viewed in a different form on the ChemWriter Demos Page. The “Installing Java” demo uses client-side JavaScript browser detection to redirect users to a browser-specific Java installation help page. This approach is complementary to the one used with metamolecular.com, which employs server-side browser detection.

Also included in this release is support for reading molfile V2000 “Atom Aliases,” which are written by some software packages.

A New Look and Better Documentation

You may have noticed some changes to the Metamolecular company website in the last few days. The entire site has been redesigned to make it easier to navigate and especially to increase the usability of the ChemWriter documentation.

New ChemWriter demonstrations have been added; both these and existing demonstrations can now be found on the ChemWriter Demonstrations Page. Watch this page for new demos - especially those that show ChemWriter being used like any other HTML element - being dynamically resized, appearing and disappearing via CSS manipulation, being programmed with JavaScript, and pushing/pulling data from a server asynchronously to name a few.

For those drawing structures with ChemWriter, a concise keyboard shortcut synopsis may be useful in getting the most out of the editor.

ChemWriter licensing has been clarified on the ChemWriter Licensing Page, which discusses three options: Domain License, Subdomain License, and Custom License.

Finally, because ChemWriter is deployed as a Java applet, we thought it essential to address the issue of working with applets on the open Web head-on. The ChemWriter developer section hosts a growing number of tutorials relating to the deployment and use of Java applets, with an emphasis on doing so in heterogeneous networks. One article in particular, “ChemWriter Deployment”, outlines the preferred, standards-compliant and cross-browser method for deploying ChemWriter.

We hope you like the changes to the site. Please feel free to offer your comments and suggestions.

ChemWriter 1.1.5 Exports Valid Molfiles in European Locales

ChemWriter 1.1.5 is now available for download.

This version resolves an issue in which ChemWriter exported invalid molfiles for clients having desktop locales set to Europen countries.