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view
(continuing <svg> attributes)
......viewBox=”<x> <y> <width> <height>”: specifies a rectangular region for the viewport.
......preserveAspectRatio=”none” or “[defer] x{Min|Mid|Max} Y{Min|Mid|Max} [meet|slice]”: specifies how to preserve the aspect ratio, applicable only if a viewBox is specified.
The middle mandatory term specifies where to place the content in the viewport.
'defer', when specified for an image element, causes the 'preserveAspectRatio' attribute on the referenced content to be used.
'meet' causes the viewport to (just) contain the content.
'slice' causes the content to (just) contain the viewport.
<view> defines a custom viewBox......C
......externalResourcesRequired
......viewBox
......preserveAspectRatio
......zoomAndPan
......viewTarget=”<XML name>”: the target object associated with the view.