Class BCFNamespace

backend supplies the viewer's render-frame offset (viewer.getRenderFrameOffset). Without one (new BCFNamespace(), as the CLI's bcf command uses it) viewpoints are taken as already being in world coordinates.

Add a comment to a topic.

Add a topic to a project.

Add a viewpoint to a topic.

Convert viewer camera state to BCF orthogonal camera. viewToWorldScale is required — it is the view extent the library returns verbatim (#4294).

Convert viewer camera state to BCF perspective camera.

Convert BCF clipping plane to viewer section plane. bounds is required — the library needs it to compute a percentage position (#4265). Accepts the SDK's tuple AABB or the library's object-shaped bounds.

Create a new comment.

Convert an IDS validation report into BCF topics (one topic per failed spec).

Create a new BCF project.

Create a new topic.

Create a BCF viewpoint from viewer camera/section state.

Converts the SDK's tuple-based camera/x-y-z sectionPlane shapes (bim.viewer.getCamera()/getSection()) into @ifc-lite/bcf's object-based ViewerCameraState/ViewerSectionPlane shapes. Throws IncompleteCameraStateError for a camera missing position/target/up, and MissingSectionBoundsError for an enabled section plane with no bounds — see #4251.

camera, sectionPlane and bounds are read in the viewer's frame, the one bim.viewer.getCamera()/getSection() return. The viewpoint is written in IFC world coordinates, as BCF requires: for a georeferenced model the viewer draws shifted towards the origin, the backend's render-frame offset is added to the camera and clipping-plane positions (#4879). With no viewer (or no shift) the offset is zero.

Extract viewer state from a BCF viewpoint.

Converts @ifc-lite/bcf's object-based camera/sectionPlane (down/front/side axis) back into the SDK's tuple camera / x/y/z sectionPlane shapes, so the result round-trips straight into bim.viewer.setCamera()/setSection() — the same conversion createViewpoint() performs in reverse (#4251). Pass bounds (the model's AABB) to also recover sectionPlane; without it @ifc-lite/bcf cannot place a clipping plane and sectionPlane is omitted, matching createViewpoint()'s own bounds requirement.

The viewpoint is read as IFC world coordinates and the result is in the viewer's frame, ready for setCamera(): the backend's render-frame offset is subtracted (#4879). A viewpoint written by ifc-lite before #4806, still in the render frame, is recognised against bounds and kept as it is.

Convert BCF orthogonal camera to viewer camera state.

Convert BCF perspective camera to viewer camera state.

Read a BCF file (ZIP archive) into a BCF project structure.

Convert viewer section plane to BCF clipping plane. bounds is required — the library needs it to place an absolute location (#4265). Accepts the SDK's tuple AABB or the library's object-shaped bounds.

Update the status of a topic.

Write a BCF project to a downloadable Blob (ZIP archive).