Inputs & Outputs

Get geometry in and out of Bitbybit through OCCT's import and export formats. A configurator is only useful if the result leaves the browser in a form someone downstream can open: STEP for CAD, STL for 3D printing, DXF for laser cutting and CNC, GLTF for the web and for real-time viewers. These pages cover writing each format, the options that control tessellation quality and units, importing existing files back into a script, and the practical differences between exact boundary representation formats and the tessellated mesh formats used for rendering.

📄️DXF File Format Export

DXF file format is very popular in 2D CAD applications. Learn how to work with DXF files using OCCT.

📄️SVG Import

Import SVG drawings into OCCT geometry - which elements are supported, how faces and holes are worked out, and what to do about text and reused symbols.

📄️STEP & IGES Import

Read STEP and IGES files into OCCT shapes - the compressed variants, passing file data from a browser, and how a file that cannot be read reports itself.

📄️Technical Drawings

Turning an OCCT model into a technical drawing - a hidden-line view from any direction, drawn in the scene, saved as SVG with the hidden edges dashed, or written to DXF with the visible and hidden edges on their own layers - with an example in Rete, Blockly and TypeScript.