Module view 

Interactive orthographic and perspective cameras with zoom-to-fit, depth-range fitting, and world/screen conversion shared by native and web.

Screen coordinates are CSS pixels: origin at the top left, y increasing down. Device pixel ratio affects surface sizing, not camera math.

Structs

Ray

A world-space ray for picking.

ViewCamera

Enums

Projection

The projection kind (R21): orthographic is the default; the toggle keeps the apparent size at the target plane.

ViewFrame

Which way the NAMED views face: the frame the standard-view table and the ViewCube’s labelled faces are read in, carried into the world by a rotation.

Functions

add3

cross3

dot3

invert4_columns

Inverse of a column-major 4×4 matrix (index = col*4 + row layout). Returns None if singular. Used to invert the view-projection for the host overlays’ screen→world path.

len3

norm3

rotate3

Rotate v around unit axis by angle (Rodrigues).

scale3

sub3