ItemExportFileTask

`construct.item.export_file`: write a mesh or tet item to a file as it is, as Export ▸ "... to file" does (construct-mesh-tet-items §MTO-1, §MTM-2).

In the namespace construct::opal. Declared in src/libs/libconstruct/construct/opal/ItemExportFileTask.hpp.

Detailed description

No meshing options and no SDF compile: the export loads the item's file and saves it in the format the path names. A format that cannot hold the item's elements fails with the reason (D2). The task changes no scene state, so it is idempotent.