scene:fit

(scene:fit v)

Points the camera at the contents and backs it off far enough to frame them: geom:bounds over every solid, its centre as the target and its extent as the distance. A no-op on an empty viewer. Part of the scene package, a 3-D viewer for geom solids written in rontolisp over metal and appkit and loaded on first use: macOS (java -jar, the rontolisp binary, or a compiled .class / .jar; never a .wasm), with a display. See the solid modeling guide.

CL-USER> (scene:fit *v*)
NIL