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RUNNING A MACRO
Stay in or load IDRISI, do not exit to DOS; clear the display
Make sure the file idrpoly.sm2 exists in the c:\exercise directory (Use the IDRISI
command FILE/LIST/POLYGON_SYMBOL to check). If it is not present, use
FILE-COPY to copy it from c:\idrisiw to c:\exercise.
Select File - Show file contents - Edit
Click the macro file button, name the file to be created `display', and write the
following macro instructions:
display x a awrajas ethiopia n x 0 0 -1 0 -1 awrajas xx idrpoly
where:
1) x = batch mode; 2) a = autoscale; 3) awrajas = image file;
4) ethiopia = palette; 5) n = NO legend (Y for yes); 6) x = dummy place holder;
7) 0 = automatic expansion; 8) 0 = begin columns at column; 9) -1 = automatic column
end;
10) 0 = begin rows at row 0; 11) -1 = automatic row end; 12) awrajas = name of vector
file;
13) x = dummy; 14) x = dummy; 15) idrpoly = vector polygon symbol file
1 : x (to indicate that batch mode is being used);
2 : display option ("a" = autoscale / "n" = no autoscale)
3 : input file name (the image file to be displayed; "img" extension assumed);
4 : palette (see options below);
5 : legend (Y = yes (including title, logo, and scale bar only) / N = no);
6 : time delay before exit (Note: This parameter does not apply to this version of IDRISI
for Windows. Enter "x" as a one-character place holder.);
7 : expansion (0 = automatic; or else a positive or negative factor);
8 : start column (if applicable);
9 : end column (if applicable; or else -1 = automatic);
10 : start row (if applicable);
11 : end row (if applicable; or else -1 = automatic);
12 : vector overlay file (optional; name of the vector file to lay over the image file);
13 : vector overlay color (Note: This parameter does not apply to this version of IDRISI
for Windows. Enter "x" as a one-character place holder.);
14 : display outlines only? (Note: This parameter does not apply to this version of
IDRISI for Windows. Enter "x" as a one-character place holder.)
15 : symbol file (name of the symbol file to be used with the overlay vector file)
SAVE the file. In the FILE menu, select RUN MACRO, and enter DISPLAY
as the macro name.
The %1, %2, etc, in the following display macro:
display x a %1 %2 n x 0 0 -1 0 -1 %3 x x %4 (= image file with vector file
overlay)
OR
display x a %1 %2 n x 0 0 -1 0 -1 (= no vector file overlay)
allows interactive input of file names and palettes as `macro parameters' (variables) at
the time the macro is run. In the first macro, the image file (%1), the image palette
(%2), the vector file (%3), and the vector symbol palette (%4) would be specified
(typed in) at run time.
In the Help file, search for the item DISPLAY LAUNCHER and examine the
entry under Macro Command. Examine the Macro Command entry for STRETCH.
FIGURES
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