MTDATA – Phase Diagram Software from the National Physical Laboratory

 

 

 

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PLOT

Function:

to plot the selected thermodynamic function on the y-axis against composition on the x-axis. Output can be sent to the screen or to a file (or both). Other parameters allow a previously compiled experimental file to be defined. The contents of the file will be superimposed automatically onto the graph. Finally the size of the graph can be specified using the FRAME_SIZE parameter..

Parameters:

experimental_file

output

frame_size

format

Defaults:

experimental_file = none

output = screen_only

frame_size = default

Examples:

plot experimental_file = "fecr" !

plot output = screen_and_file !

replot frame_size = reduced !

Parameter values:

EXPERIMENTAL_FILE

takes the value <"filename">.

The default filename extension is ".exp".

OUTPUT

takes the values SCREEN_AND_FILE/ SCREEN_ONLY/ FILE_ONLY

FRAME_SIZE

takes the values DEFAULT/REDUCED

FORMAT

takes the values METAFILE

General Comments:

The MTDATA METAFILE format is used to describe the experimental data whereby each point is defined using a SYMBOL statement according the syntax required for MTDATA metafiles. eg

SYMBOL F 0.25 -5126 0.5

Here "F" is the selected symbol, the following two numbers (0.25 and -5126) represent the x and y axis values of the experimental point with the final number indicating the size of the symbol.

 

Updated 29 June 2010