pbrt-coord-sys-transform? ( object -- ? )

Vocabulary

pbrt

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the pbrt-coord-sys-transform class.

Definition

USING: classes.tuple.private kernel slots.private ;

IN: pbrt

: pbrt-coord-sys-transform? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ pbrt-coord-sys-transform eq? ]
    [ drop f ] if ;