D-Cubed HLM Version 56.0

By JonR

Key enhancements introduced in version 56.0 of D-Cubed HLM (Hidden Line Manager) are described below.

Performance Improvements on Helical Sweep Surfaces

HLM supports numerous curve and surface types, enabling computational optimisations compared to generic parametric geometry types. Version 55 saw the introduction of helical sweep surfaces which could previously only represented as parametric surfaces. Version 56 sees further performance improvements when working with helical sweep surfaces.

D-Cubed HLM helical sweep

Examples of helical sweep surfaces

Performance Improvements on Multi-Threaded Models

HLM has been thread safe since 2009 and has supported multi-threading since 2011. This release further improves performance where multi-threading is used.

About D-Cubed HLM

D-Cubed HLM (Hidden Line Manager)) is a software component that provides applications with a fast hidden line computation capability. HLM is optimized for solid, surface and wireframe models, with support for accurate, tolerant and faceted geometry. HLM is compatible with most applications, being independent of modeler or model format. HLM accurately computes hidden line views, engineering drawings and technical illustrations of parts and assemblies with exceptional performance, reliability and functionality.

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This article first appeared on the Siemens Digital Industries Software blog at