enable print

This command is obsolete beginning with grads version 2.1. It has been replaced by gxprint.

This command opens the output file fname that will contain the instructions in grads metacode format to create a hardcopy of the graphical display. Any existing contents of fname will be lost. The output file fname is referred to as a grads metafile.

eloop

eloop(expr)

The eloop function is similar to the tloop function. When displaying a grads expression (expr) with the E (Ensemble) dimension varying, the eloop function will evaluate the exprwith each designated ensemble member fixed, then reassemble the grids to obtain a final result that is E-varying. The eloop function is provided as a way to obtain E-varying results from functions or expressions that are unable to operate when E is a varying dimension.

set cthick

This command sets the thickness for the contour lines.

Synatx

set cthick thickness

The thickness arg must be an integer in the range of 1 to 12 (or 256 for version 2.1 and later)

query

The query command allows the user to get information about a variety of aspects of the current grads session. Configuration, plot characteristics, graphics specifics, and file structure are some examples. The use of query pos combined with the coordinate transformations is the basis of many interactive applications with buttons and drop menus. The query command may be shortened to simply q. The syntax is:

query <option>
or
q <option>

set cterp

set cterp on|off

Turns spline smoothing on or off. "Sticks" until reset. Shaded contours are drawn without spline fitting, so to insure an exact match when overlaying contour lines and shaded contours of the same field, specify cterp as off. You can still use the csmooth option, which affects both contour lines and shaded contours.

set cstyle

set cstyle style

Sets the contour linestyle. style options are:

0 - no contours 
1 - solid 
2 - long dash 
3 - short dash 
4 - long dash, short dash 
5 - dotted 
6 - dot dash 
7 - dot dot dash 

set csmooth

set csmooth on|off

If on, the grid is interpolated to a finer grid using cubic interpolation before contouring. "Sticks".

Using grads Station Data

This section describes some of the grads commands and functions that are available for analyzing and displaying station data. Please refer to the companion section About Station Data for information on the structure of station data files, how to create them, and how to instruct grads to interpret them properly.

Here are some quick links for skipping through this section:

• Operating on Station Data
• Plotting Station Models
• Drawing Arbitrary Cross Sections