Graphics Glossary Definition (English)

User coordinates Defined
The following is in context to Graphics, because it's common for a single word to have multiple meanings you will find additional research links near the bottom of the page.
"The NCAR Graphics Cartesian coordinate system in which you perform your calculations. This is identical to the GKS world coordinate system when mirror imaging and/or log scaling of an axis is not used. In user coordinates, windows can be defined in which the coordinates decrease from left to right or top to bottom (mirror imaging) or range in a logarithmic scale (log scaling). GKS world coordinates, however, always increase from left to right and bottom to top in a linear fashion. See Chapter 8 "Coordinate systems in NCAR Graphics" and Appendix A "The Use of X/Y Coordinates in NCAR Graphics" for more information."
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Additional User coordinates Definition Starting Points
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Expert Dictionary: User coordinates



