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Quiz · 4 questions

✏️ From Pencil to Paint

How a touch becomes engine input in one place, mapped onto libmypaint's arguments with two angles still in the wrong unit, one batch per event, with the first dab where the pen lands

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Quiz

01The canvas is rotated by r and mirrored left to right. A Pencil's azimuth arrives as θ, measured in the view's coordinates. What does Ariandel's single conversion point store as the canvas-space azimuth?
02Why does PencilMapping report a stroke's first event as arriving ten seconds after the previous one?
03Ariandel's canvas feeds every coalesced touch but never uses predicted touches. Which reason does the code and its engine support?
04After commit de3bef7, what does the canvas do when a Pencil lands while activeTouch still holds an earlier touch?
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