LEDAS Releases GS 2D Version 2.2 Geometric Solver

By DE Editors

LEDAS Ltd. has released version 2.2 of its variational geometric solver, LGS 2D, which is used by CAD/CAM/CAE software development companies to implement parametric capabilities in engineering applications.

Working with 2D parametric sketches, many CAD users face over-defined situations with a superfluous set of geometric constraints (logical and dimensional) that makes parametric modifications of the sketch elements difficult. A variational constraint solver automatically detects over-defined parts of a sketch to be visualized for a user.

Version 2.2 of LGS 2D contains improvements in this area. Previously, any constraint cycle included a superfluous constraint was marked as over-defined, while typical user scenarios design a correct but logically over-defined sketch. For example, a user can create two vertical lines and then set a distance dimension between them. This distance dimension implies parallelism constraint, which is superfluous because both lines are constrained to be vertical. The problem is logically over-defined, but this does not prevent its successful parametric modification. In LGS version 2.2 developers can choose whether a cycle of superfluous logical constraints should be marked as over-defined by setting a relevant solver option. The default mode is the same as in the previous versions: all over-defined constraints are marked.

The solver’s performance on large models with thousands constraints has been advanced. First, a new decomposition diagnostics was plugged in to enhance accuracy and efficiency. Second, the set of LGS 2D decomposition techniques was extended to further improve both natural behavior and performance.

For more information, visit LEDAS Ltd.

Sources: Press materials received from the company and additional information gleaned from the company’s website.