ProjectionProjection - Sky projection description

Description:
This attribute provides a place to store a description of the type of sky projection used when a SkyFrameSkyFrame is attached to a 2-dimensional object, such as an image or plotting surface. For example, typical values might be "orthographic", "Hammer-Aitoff" or "cylindrical equal area".

The Projection value is purely descriptive and does not affect the celestial coordinate system represented by the SkyFrame in any way. If it is set to a non-blank string, the description provided may be used when forming the default value for the SkyFrame's TitleTitle attribute (so that typically it will appear in graphical output, for instance). The default value is an empty string.

Type:
String.
Class Applicability:
SkyFrame
All SkyFrames have this attribute.