Recreating Sketchpad, the first GUI!
summary
A browser recreation of Sketchpad actually reimplements the original claims: a working constraint solver that enforces perpendiculars and centers, an instance/template system with copy/rotate/scale, and the early object-like ring of blocks for deletion and inheritance. The project reproduces the fuzzy CRT look with twinkling rendering, runs in the browser, and demonstrates the surprising depth of Sketchpad’s algorithms and data structures rather than just the idea of a GUI.
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chapters (6)
- 0:00Introduction to Sketchpad
- 1:23Live demo of capabilities
- 3:41Data structures and design
- 7:30The Claude Shannon connection
- 8:34Displaying and the twinkling
- 9:48Reflecting on legacy
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