Keywords: greg

Next: One-Dimensional Arrays X Y Up: GreG Manual Previous: The User Coordinates Contents Index

## The Data Structure

GREG has space reserved into internal buffers for the user's data. Four buffers are available, those with conventional names X Y Z and the Regular Grid array. Buffers X and Y are one dimensional arrays used to store the X and Y data for graphs Y=f(X) (or pairs (X,Y) in some applications). Z is also a one dimensional array and is used for storing additional values such as error bars corresponding to the X (or Y) data. The Regular Grid array is a two dimensional array used to store regularly spaced data (maps) for two-dimensional applications like contouring. Additional buffers are used for specific applications, such as the Polygon buffer.

Subsections

- One-Dimensional Arrays X Y Z
  - Formatted Files :
  - Table Format :
- Two-Dimensional Regular Grid Array
  - Variables and Images:
  - RGDATA File Format :
- Using Variables