28.2 Projection and Three Views: Photographing a Solid
Point 1 of 5
28.2.1 What Projection Is
Core idea
A lamp casts an object's shadow onto the wall: when the rays run parallel it's a parallel projection, and when they strike straight on it's an orthographic projection.
Module goal. Use the idea of projection to understand where the three views come from, master drawing them and rebuilding the solid from them, and use them to compute measurements.
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