What’s New in Recent SDK Updates

Performance, Compatibility, and Smarter Exports

ODA continues to enhance its SDK lineup with powerful improvements across the board—from kernel-level upgrades to advanced visualization, BIM, and interoperability features. Here’s a summary of the most notable changes introduced in our most recent two SDK releases.

Overall: Updated Libraries and Threading Tools

• OpenSSL updated to 3.4.0 and cURL to 8.13.0, ensuring compatibility with the latest security and networking standards.

• Support for iOS 18 has been added, while iOS 17 is deprecated.

• A new non-blocking method, OdMutex::tryLock(), is now available for safer and more responsive multithreaded programming.

Visualize SDK: Optimized Selection and Geometry Handling

New Features

• Dwg2Visualize now imports polylines as a single OdTvPolyline object when possible.

Performance Improvements

• Significant speedups for the select() method using BlockCache, especially in crossing and window selection modes.

• Improved performance and memory usage for highlight and unhighlight operations.

• Fixes for non-indexed geometry in glTF import and lineweight rendering when geometry shaders are disabled.

Drawings SDK: Multi-mode Grip Points and Format Upgrades

New Features

• Support for multimode grip points on multiple entity classes.

Import/Export Improvements

• PDF import: Up to 7% faster with clipping enabled; clipping now respects line weights.

• SVG import enhancements: proper hatch closure and support for nested SVG files.

• Added access to elements in DGN “Nd” streams.

• macOS DXF: line endings updated to \r\n.

IFC SDK: Multi-Threading and Enhanced DWG Export

• Experimental multi-threading for entity composition via OdIfcModelContext.

• New ComposeMode enum and methods for controlling threading strategy.

• Ifc2Dwg adds exportDirectlyToModelSpace to convert items directly into DWG model space.

STEP SDK: Viewer Extensions and Geometry Support

• OpenSTEPViewer adds support for QIF and IGES file loading.

• Support added for hyperbolas and parabolas in StepGeom.

• Single-file archives can now be unzipped directly into memory via zipio.

BimNv SDK: Improved Performance and Compatibility

• ~50% faster PropertyTree construction, especially in files with AutodeskMaterial.

• Better compatibility with multiple vectorization devices.

• Separated rendering queues for opaque and transparent drawables for improved visualization.

• Smarter embedding of textures and recap files during publish.

Publish SDK: More Reliable Export

• Improved BIM to PRC export, including support for BmRbsCurve.

• More stable multipage PDF export using GsCache.

• Improved export of pseudo-italic TrueType fonts and geometry with linetypes.

More details, including full changelogs and usage examples, are available in your Personal Account.