NwcIO v0.7.0

Major Additions & Capabilities

• Intelligent Clash Grouping & Clustering Engine (NwcClashGrouper):
  • Spatial 3D proximity clustering (GroupByProximity) using Disjoint-Set (Union-Find) algorithm, grouping thousands of raw collisions into manageable spatial clusters with auto-calculated cluster centroids and optimal framing viewpoints.
  • Element-based grouping (GroupByPrimaryElement) bundling all collisions involving the same continuous MEP run (pipe, duct, cable tray) or structural beam into a single issue.
  • Structural grid grouping (GroupByGrid) clustering collisions by architectural and structural grid intersections.
  • Discipline & layer grouping (GroupByLayer) bundling clashes by layer or discipline pairs.
  • Reversible grouping lifecycle (UngroupAll) dissolving groups back into individual results when needed.
  • Full reading and writing of <clashgroup> elements in Autodesk Navisworks Clash Report XML (NwcXmlClashSerializer).
  • Grouped buildingSMART BCF 2.1 export (NwcClashBcfExporter), exporting clash groups as unified topics with consolidated viewpoints, descriptions, and participating IFC component GUID selections.
• Standalone 3D WebGL HTML Viewer Export (NwcHtmlViewerExporter):
  • Direct export of Navisworks documents and federated assemblies to self-contained, interactive single-file 3D HTML viewers (.html) with zero external script, CDN, or server dependencies.
  • High-performance WebGL rendering with smooth orbit controls (rotate, pan, zoom), mesh instancing, material colors, and HUD scene statistics.
  • Dynamic multi-axis section clipping planes (Cut X, Cut Y, Cut Z sliders) running directly in WebGL fragment shaders.
  • Embedded saved viewpoints palette with instant camera fly-to transitions.
  • Integrated Clash Navigator allowing review of clash groups and collision points in interactive 3D.
  • Property Inspector panel displaying full hierarchical BIM properties of selected elements.
  • Added NwcDocument.SaveHtmlViewer(...) and NwcAssembly.SaveHtmlViewer(...).
• Quick Properties & Tooltip Rules (NwcQuickProperties):
  • Strongly typed object model for configuring Navisworks Quick Properties tooltips (NwcQuickProperties, NwcQuickPropertyDefinition).
  • Built-in standard BIM presets for element names, types, materials, layers, areas, and volumes.
  • Smart node extraction and full roundtrip Navisworks XML serialization (ToXml / FromXml).
• CLI Enhancements (nwcio):
  • Added --html-viewer <file.html> / --viewer <file.html>: Exports models and assemblies to self-contained 3D WebGL HTML viewers.
  • Added --clash-group <proximity|element|grid|layer>: Automatically clusters raw clashes before exporting XML reports or BCF archives.
  • Added --clash-radius <meters>: Configurable spatial radius for proximity clustering (default: 1.0 m).