Animation
set loopdim     
Sets dimension to animate
set loopincr    
Sets looping increment
set looping     
Turns on animation when fewer than three dimesions are varying
set dbuff       
Turns on/off double buffer mode
swap            
Swaps buffers when in double buffer mode
Axis Labeling
draw xlab        
Draws an X-axis label
draw ylab        
Draws a Y-axis label
set vrange      
Sets the range of values for Y-axis scaling
set vrange2     
Sets the range of values for X-axis scaling
set xaxis       
Specifies where the labeled tick marks will be placed on the X-axis
set xflip       
Flips the order of the horizontal axis
set xlab        
Controls the format of X-axis tick mark labels
set xlabs       
Gives specific text for X-axis labels
set xlevs       
Specifies each individual labeled tick mark for the X-axis
set xlint       
Specifies the interval between labeled tick marks on the X-axis
set xlopts      
Controls X-axis label options
set xlpos       
Controls position of X-axis labels
set xyrev       
Reverses the X and Y axes on a plot
set yaxis       
Specifies where the labeled tick marks will be placed on the Y-axis
set yflip       
Flips the order of the vertical axis
set ylab        
Controls the format of Y-axis tick mark labels
set ylabs       
Gives specific text for Y-axis labels
set ylevs       
Specifies each individual labeled tick mark for the Y-axis
set ylint       
Specifies the interval between labeled tick marks on the Y-axis
set ylopts      
Controls Y-axis label options
set ylpos       
Controls position of Y-axis labels
set zlog        
Sets log scaling of the Z dimension
Bar Graphs
set barbase     
Sets the reference point for bar graphs
set bargap      
Sets the gap between bars for bar graphs
set baropts     
Sets characteristics of bars for bar graphs
set gxout bar  
Graphics output
type for bar graphs
set gxout errbar  
Graphics
output type to show error bars
Color Control
set fgvals      
Assigns a color to a particular value; used with set gxout fgrid
set lfcols      
set rbcols      
Specifies a new rainbow color sequence
set rbrange     
Assigns a range of values to rainbow colors
set rgb         
Defines a new color
set wxcols      
Controls color of weather symbols
Contour Settings
set annot       
Sets the color and thickness for the axis border, axis labels, and tickmarks.
set black       
Specifies a range of values for which no contours will be drawn
set ccolor      
Specifies the color of the plotted contours
set ccols       
Assigns specific colors for each contour level
set cint        
Sets the contour interval
set clab        
Controls contour labels
set clevs       
Sets specific contour levels
set clopts      
Contour label options
set clskip      
Sets the number of contour lines to skip when labelling
set cmax        
Contours not drawn above this value
set cmin        
Contours not drawn below this value
set csmooth     
Interpolates the grid to a finer resolution before contouring
set cstyle      
Sets the contour line style
set cterp       
Turns on/off spline smoothing
set cthick      
Sets contour line thickness
Display Controls
clear           
Clears the display window and resets many graphics options
display         
Draws a plot
reset           
Returns GrADS settings to default state with some exceptions
set background  
Sets
background color
set clip        
Sets the coordinates for clipping the plot area
set cmark       
Sets the type of line marker
set display     
Sets the mode of display
set frame       
Draws a frame around plot borders
set gridln      
Controls appearance of grid lines; used with set gxout grid
set gxout       
Sets a graphics output type
set line        
Sets line attributes
set missconn    
Connects plots lines over missing data
set parea       
Specifies the area for plotting contour plots, maps, or line graphs
set vpage       
Sets dimensions of the virtual page
set xsize       
Resizes the graphics display window
Data and Image Output
disable fwrite  
Closes
output file containing gridded data
disable print   
Closes
output file containing images in metacode format
enable print    
Opens output file containing images in metacode format
gxeps           
Converts GrADS metacode format image files into postscript
gxps            
Converts GrADS metacode format image files into postscript
gxtran          
Displays GrADS metacode format image files
outxwd          
Copies the contents of the display window into a file in XWD format
print           
Copies the contents of display window to a file in a metacode format
printim         
Copies the contents of display window to a file in PNG or GIF format
set fwrite      
Sets filename, byte ordering, and format for data output
set gxout fwrite  
Graphics
output type for writing data to file
wi              
Dumps the contents of the display window into a file in a variety of formats
Dimension Environment
set x           
Specifies the X-dimension in grid coordinates
set y           
Specifies the Y-dimension in grid coordinates
set z           
Specifies the Z-dimension in grid coordinates
set t           
Specifies the T-dimension in grid coordinates
set lon         
Specifies the X-dimension in world coordinates
set lat         
Specifies the Y-dimension in world coordinates
set lev         
Specifies the Z-dimension in world coordinates
set time        
Specifies the T-dimension in world coordinates
File I/O
close           
Closes a GrADS data file
open            
Opens a GrADS data file
reinit          
Returns GrADS to its initial state
exec            
Executes the list of GrADS commands contained in a file
run             
Runs a GrADS script
sdfopen         
Opens a NetCDF of HDF-SDS file that conforms to the COARDS conventions
xdfopen         
Opens a NetCDF of HDF-SDS file that does not conform to the COARDS conventions
set dfile       
Changes default file
set imprun      
Sets up automatic script execution before every display command
GrADS-User Interface
grads           
Starts the GrADS program
help            
Lists a few basic GrADS commands
query           
Returns information about a variety of aspects of the current GrADS session
quit            
Quits GrADS
set datawarn    
Prints "Entire Grid Undefined" in display window if all data are missing
set stat        
Turns on/off printing of statistical information for each display
set warn        
Turns on/off messages about the progress of certain mathematical operations
!shell          
Sends a command to the shell
Graphical Elements
draw line        
Draws a line
draw mark        
Draws a mark
draw polyf       
Draws a filled polygon
draw rec         
Draws a rectangle
draw recf        
Draws a filled rectangle
draw wxsym       
Draws a weather symbol
GRIB Utilities
gribmap         
Creates a map of data sets in GRIB format
gribscan        
Extracts grid info from data sets in GRIB format
Map Settings
draw map        
Draws a map outline
set grid        
Sets characteristics of displayed grid lines
set map         
Sets map background characteristics
set mpdraw      
Turns on/off drawing of map background
set mpdset      
Sets the resolution of the coastal outline
set mproj       
Sets current map projection
set mpt         
Controls map background characteristics
set mpvals      
Sets reference longitudes and latitudes for polar stereographic plots
set poli        
Turns on/off the drawing of political boundaries
Plot Annotation and Labeling
draw string      
Draws a string anywhere on the page
draw title       
Draws a title centered over a plot
set dignum      
Sets the number of significant digits after the decimal point
set digsiz      
Sets the size of plotted numbers
set font        
Selects the font for text display
set grads       
Turns on/off the GrADS logo in each plot
set string      
Sets string drawing attributes
set strsiz      
Sets the string character size
set timelab     
Turns on/off display of the time label
set tlsupp      
Suppresses the annotation of the year and/or month in date/time labels
Station Data
collect         
Saves station data in memory as a set
set mdlopts     
set wxopt       
Controls weather symbol output; used with set gxout wxsym
set stid        
Turns on/off display of the station ID next to the data values
set stnprint    
Controls printing of station data values; used with set gxout stat
stnmap          
Writes out a hash table and/or link list information for station data
Variables
define          
Creates a new GrADS variable that is loaded into memory
modify          
Defines a climatological variable
set defval      
Interactively modifies grid point values for 2-D defined variables
undefine        
Frees the memory used by a defined variable
Vectors
set arrlab      
Toggles drawing the vector arrow label
set arrowhead   
Sets
the size of the vector arrowhead
set arrscl      
Specifies arrow length scaling
set gxout vector   
Graphics
output type for vector plots
set hempref     
Controls wind barb drawing conventions
set strmden     
Sets density of streamlines; used with set gxout stream
Widgets
draw button     
Draws a button widget
redraw button   
Resets a button widget on/off
draw dropmenu   
Draws a dropmenu widget
set button      
Specifies the color characteristics of a button widget
set dialog      
Sets color properties of dialog box widgets
set dropmenu    
Sets color properties of dropmenu widgets
set rband       
Sets characteristics for the 'rubber band' widget