In the 2.0 draft [1] we say physical_scale is "The floating point ratio to convert from the canvas height and width to the physical objects height and width." which implies but is not explicit about whether one multiplies pixels by this or divides pixels by this to get physical size. Should we include:
physical_width = width * scale_factor in physical_units
or similar?
[1] http://iiif.io/api/annex/services/#physical-dimensions
In the 2.0 draft [1] we say physical_scale is "The floating point ratio to convert from the canvas height and width to the physical objects height and width." which implies but is not explicit about whether one multiplies pixels by this or divides pixels by this to get physical size. Should we include:
physical_width = width * scale_factor in physical_units
or similar?
[1] http://iiif.io/api/annex/services/#physical-dimensions