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 MACRO 
 
 

Macros are text files holding regular GIFA commands. Loops, tests, 
controls, input/output and variables are available within macro.
Macros are called form the user interface exactly as native 
commands. Parameters can be passed to macros. Macro are called by 
typing their name (case sensitive). It is also possible to force for 
a macro call by prefixing the name with @. Permitting thus to have 
macros having the same name as native commands.
When called, macro files are first searched in a list of 
directories, held in an internal path context (The GifaPath). By 
default the path consists in the current working directory (as given 
by pwd), then in the user macro directory : $HOME/macro, and finally 
in the global macro directory : /usr/local/gifa/macro. This PATH can 
be changed with the SETPATH command, and examined with the $GIFAPATH 
context.

All the macros in the standard distribution are in the 
/usr/local/gifa/macro directory, some other macro can be found on 
the ftp server.

see also : BUTTONBOX CONTEXTS CONTROLS DIALOGBOX FORMBOX FUNCTIONS OPEN SETPATH SETPROMPT VARIABLES

 
 MAX 
 
 

Finds the maximum and minimum points of the current data-set. Load 
the values used by MINIMAX.

see also : ABSMAX MAX

 
 MAXDATA 
 
 

Compare the content of the current buffer with the content of the 
DATA buffer, and leave in memory the largest of the 2 values.
Usefull for projections or symetrisation macros.

see also : ADDDATA MINDATA MULTDATA

 
 MAXENT 
 
 

MAXENT  SI1 { SI2 }
Start Maximum Entropy iteration. The user is prompted for the size 
of the reconstructed image.

see also : ALGO conjg gad gifa ITER MAXENTCONT NDISP

 
 MAXENTCONT 
 
 

Continue Maximum Entropy iteration. All the parameters may be 
modified before CONTinuing, but the current spectrum as hold in the 
working buffer should not be modified.
 

see also : ITER MAXENT

 
 MEDIAN 
 
 

MEDIAN { y } x index
Executes a median filter on the data-set (1D or 2D).a window of x 
points (or y by x in 2D) is moved along the data set, the point are 
ordered, and the indexth point is taken as the new point for the 
data set.

see also : SMOOTH

 
 MEMORY 
 
 

	The GIFA program holds all the data in one single large memory 
buffer. This buffer is used for several purposes, and may be divided 
into smaller pieces. The size of this buffer is displayed when 
entering the program, or with the CONFIG command. There is no way to 
use a larger data-set than this memory size but recompiling. This 
buffer is used for 1D as well as 2D and 3D operations. In all cases 
the whole buffer is available.  However, when moving back and forth 
between 1D, 2D or 3D mode, or when using memory intensive commands, 
only partial regions of the buffers are protected. The size of these 
protected regions are given with CONFIG command. The idea is that 
you can eat-up all the available memory for a single data-set if you 
which, but that certain operations will be forbidden on it.
	For instance, you can handle a full memory 2D data-set if you do 
not wish to do 3D. However, when working in 3D, if you zero-fill a 
2D plane extracted from the 3D, over the protected area size for 2D, 
you will destroy a part of the 3D buffer. You will sometime get the 
question : 'This will overflow the xx buffer, Ok?' when there is any 
risk of  destroying one of the buffer. This question is not asked in 
macro execution, where you are supposed to know what you are doing.
	See documentation for a more detailed description of the memory 
set-up.

see also : CONFIG VARIABLES

 
 MESSAGE 
 
 

message text
	This command ermits to build interactive macros. If no argument 
is present on the calling line when MESSAGE is executed, the text 
will be issued to the user when the next data entry will be needed; 
if an argument is present, nothing will happend.
	If the macro is called from a menu button, then the text will 
appear in the data entry dialog box.

see also : ALERT PRINT SETPROMPT VARIABLES

 
 METH 
 
 

METH 0/1/2
When set to 0, indicates that the current build-up curve is taken 
from 2 simple hydrogens, when set to 1, indicates that there is 1 
methyle group, when set to 2, 2 methyle groups. Used by DIST

see also : CALIBDI DIST RELAXRATE

 
 MINDATA 
 
 

Compare the content of the current buffer with the content of the 
DATA buffer, and leave in memory the smallest of the 2 values.
Usefull for projections or symetrisation macros.

see also : ADDDATA MAXDATA MULTDATA

 
 MINIMAX 
 
 

MINIMAX n1 n2
	Load the value of the minimum and the maximum points that will be 
used for peak-picking. These value are loaded by the MAX command.

see also : MAX PEAK

 
 MINITER 
 
 

Secondary iteration number for two steps minimisation in GIFA.
Number of iterations used for the line-minimization during one step 
of the MaxEnt iteration.
In a MaxEnt run, the number of FT's per iteration is MINITER + 2
Also used by other iterative process LINEFIT AUTOPHASE

see also : ITER

 
 MINUS 
 
 

Sets to zero the positive parts of the signal

see also : ABS ONE PLUS ZERO

 
 mkdbppm 
 
 

 Macro to generate a ppm DBM file from a ppm ascii file

 mkdbppm dbm_ppm_filename ascii_ppm_filename 

 the ascii ppm file has the following free-format:

 PPM residu_name residu_number atom_name ppm_value linewidth_value

 

see also : DBOPEN SimSpect2D SIMUN

 
 MODIFYSIZE 
 
 

MODIFYSIZE si1 si2 {si3}
Used mostly for hacking
Permits to modify the leading sizes of a 2D or a 3D data-set, 
provided the product of the sizes : si1*si2{*si3} is equal to the 
product of the old ones.
Does not actually modify the data.

see also : CHSIZE size

 
 MODIF_AMOEBA 
 
 

MODIF_AMOEBA crdf1 crdf2 nopeak
 Assign the pixel at coordinates crdf1 crdf2 to the amoeba of the 
peak nopeak. The pixel coordinates crdf1 and crdf2 are given in 
index.
Setting a nopeak of zero removes that pixel from the amoeba 
definition.

 

see also : INTEG MSKINTEG mskread mskwrite

 
 module 
 
 

 obsolte, use MODULUS instead

 
 MODULUS 
 
 

MODULUS is used to calculates the modulus of the spectrum. 
In 2D, will only works for fully Hypercomplex data-sets  (itype == 
3) or for data-sets complex in F2 (itype == 1) not for data-set 
complex in F2 (itype == 2). In this last case, you should use FLOP 
before doing MODULUS.

see also : ABS FLIP FLOP REAL

 
 MONOPOINT 
 
 

Permits to click once on the data-set. The top value on the point 
stak : context variables, $POINTX[1], $POINTY[1] and $BUTTON are set 
accordingly. If $NPOINT is zero (after a POINT_CLEAR) it is set to 
1, unchanged otherwise.
Useful for macros.

see also : point POINT_PUSH ZM

 
 more 
 
 

as in unix

 

see also : CD ls pwd rm SH vi vim vip

 
 MORPHOB 
 
 

internal value for BCORR 3 algorithm

see also : BCORR BCORRP?

 
 MORPHOS 
 
 

internal value for BCORR 3 algorithm

see also : BCORR BCORRP?

 
 MSKINTEG 
 
 

 integrates the current 2D data buffer using the last defined amoeba
 mask.
 The results are put into the peak list.
  
 

see also : GET INTEG MODIF_AMOEBA mskread mskwrite PUT SIGN_PEAK ZERO_QU

 
 mskread 
 
 

 mskread file_name
 read the peak table and the amoeba written with mskwrite
 for integration with mskinteg
 appends extensions .pek and .amb to file_name

 

see also : MSKINTEG mskwrite PKREAD PKWRITE

 
 mskwrite 
 
 

 mskwrite file_name
 write the peak table and the amoeba for latter integration
 with mskread and mskinteg
 appends extensions .pek and .amb to file_name

 

see also : MSKINTEG mskread PKREAD PKWRITE

 
 MULT 
 
 

MULT x
Multiply data-set by a scalar.

see also : ADD ADDDATA MULTDATA

 
 MULTDATA 
 
 

Multiplies point by point, the content of the current working buffer 
with the content of the DATA buffer. Permits to realize convolution 
product. Works in 1D, 2D, in real, complex and hypercomplex modes.

see also : ADDDATA MAXDATA MULT

 
 MULTIPOINT 
 
 

Permits to click several time on the data-set. Similar to POINT, but 
no output is generated. The values of the pseudo-variables $NPOINT, 
$POINTX[1], $POINTY[1] and $BUTTON are set accordingly. Useful for 
macros.

see also : MONOPOINT

 
 MUNSET 
 
 

munset list_of_variable_name *
Removes all the variables which names are found in 
list_of_variable_name from the variable table. The list is 
terminated by a * sign. Note that no $ sign are needed.

see also : SET tunset UNSET VARIABLES