Devin J. Pohly c37aa00aec consistent naming for coordinate variables ...

x and y are reserved (inasmuch as it's dwl's choice) for coordinates
relative to the layout.  ox and oy are used for output-relative
coordinates.  sx and sy are surface-relative.  dx and dy are deltas.

figuring this out the first time was kind of a Thing... just don't pay
attention to what happens in render and you should be fine.

2020-04-21 19:42:21 -05:00

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