Artlandia has released version 4 of its SymmetryWorks plug-in for Adobe Illustrator. The tool allows patterns of shapes to be constructed, with controls over arrangement, repetition, harmony and balance.

SymmetryWorks 4 expands the replica feature, allowing designers and illustrators to make live copies of selected objects, changing the pattern to a more or less symmetric look.

Multiple replica copies can be created, and automatically arranged in patterns such as spirals, mosaics, pinwheels, and gradations. Artlantia says this feature lets the user instantly generate and interactively edit checks, eccentrics, and guilloche patterns, and produce a variety of optical, moire, and other effects.

The new version also provides support for applying live effects to replica art and optionally accumulating effects. The plug-in also allows the user to hide a part of the seed and show it only after applying suitable effects in replicas.

Artlandia SymmetryWorks 4 requires Illustrator 8.0 or higher on both Mac and Windows platforms. It costs $229 (around £115), or $419 (£222) with the SymmetryShop plug-in for Photoshop.