Module render 

Document pixel buffer rendering and diffing.

Enums

Origin

The origin of a documents page, this is used for comparisons of pages with different dimensions.

Constants

DEFAULT_PIXEL_PER_PT

The default pixel per pt value used for rendering pages to pixel buffers.

PPP_TO_PPI_FACTOR

The factor used to convert pixel per pt to pixel per inch.

Functions

page_diff

Render the visual diff of two pages. If the pages do not have matching dimensions, then the origin is used to align them, regions without overlap will simply be colored black.

ppi_to_ppp

Converts a pixel-per-inch ratio to a pixel-per-pt ratio.

ppp_to_ppi

Converts a pixel-per-pt ratio to a pixel-per-inch ratio.