Collection

Tag: ivan-sutherland

Cohen-Sutherland and the Line-Clipping Algorithm for Windowed Graphics

The Cohen–Sutherland algorithm used compact region codes and bit operations to avoid unnecessary intersection work, making window clipping practical for early interactive graphics and simulation.

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Ivan Sutherland’s Sketchpad and the Birth of Direct Graphical Interaction

Sketchpad let a user draw, constrain, copy and manipulate geometric objects directly on a computer display, demonstrating a new form of conversation between human and machine.

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