inventor-doc binary package in Ubuntu Bionic armhf

 This package contains the Open Inventor documentation files.
 .
 Open Inventor is an object-oriented 3D toolkit offering a comprehensive
 solution to interactive graphics programming problems. It presents a
 programming model based on a 3D scene database that simplifies graphics
 programming. It includes a large set of objects such as cubes, polygons,
 text, materials, cameras, lights, trackballs, handle boxes, 3D viewers, and
 editors can speed up your programming and extend your 3D program's
 capabilities.

Source package