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q contours

admin بازدید : 107 دوشنبه 13 بهمن 1393 نظرات ()

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:

درباره C ,

()const

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()const

const (expr, value, <-u|-a>)

This is a powerful function that allows the user to change the missing values of a variable, set all the non-missing values of a variable to a constant, or set all possible values of a variable (both valid and missing) to a constant.


    expr   a valid grads expression 
    value  a constant, either an integer or floating point value 
    -u     all missing data are set to value; non-missing data are unchanged
    -a     all data are set to value, both missing and non-missing
درباره C ,

q config

admin بازدید : 132 دوشنبه 13 بهمن 1393 نظرات ()

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
    <option>
درباره C ,

Compressed

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Reading and Writing Compressed Data Sets

Introduction
Chunking and Cacheing 
Setting Cache Size
Reading Compressed Files
Writing Compressed NetCDF Files
Setting Chunk Size


درباره C ,

commands: attribute

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grads Commands Sorted by Attribute


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



درباره C ,

command line editing

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Command line editing and history

If the readline library compiles on your system then the default prompt will be ga-> as opposed to ga>. This indicates that command line editing is active. The library defaults toemacs mode but can be set up to run using vi syntax.

Here's a list of the commands which may typically be used:


    ctrl-a   go to beginning of line 
    ctrl-e   go to end of line 
    ctrl-f   go forward one char 
    ctrl-b   go backward one char 
    ctrl-d   delete the char 
    ctrl-p   recall previous line
    ctrl-n   recall next line
    ctrl-r   reverse search
درباره C ,

controlling colors

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Controlling Colors in grads

The Pre-Defined Default Colors in grads
The Default Rainbow Palette
Defining New Colors
Transparent Colors
Overriding the Default Palette
Plotting Contours of Constant Color
Omitting Colors
Plotting Non-Continuous Index Grids

درباره C ,

default colors

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The grads Default colors


Col# Description Sample R G B
0 background 0 0 0 (black by default)
1 foreground 255 255 255 (white by default)
2 red 250 60 60
درباره C ,

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