DocumentationDynamic Media Image Serving and Rendering API

Layer placement layer-placement

Last update: Wed Sep 29 2021 00:00:00 GMT+0000 (Coordinated Universal Time)

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Layers are positioned by aligning the layer origin (origin=) with the background layer origin at an offset specified by pos=.

If the layer origin is not specified explicitly for an image layer, it is calculated as follows:

  1. Determine the image anchor. Use anchor=, or, if not specified, catalog::Anchor.
  2. If the image anchor is defined, apply the layer transforms and extend= to convert it to an origin= value.
  3. If no image anchor is defined, the layer origin is placed at the center of the layer rectangle (after applying extend=).

Layer placement image

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