yes. First use
x = load("test.png", TRUE)
this loads test.png as a binary file, creating an associative array of
information in the file in the form of binary arrays.
$ x = load("test.png", TRUE)
$ print x.keys
$_BINARY_$
1deh.pdb.gz
JmolManifest.txt
Jmol_version_14.3.16_2015.08.17__2015-08-17_22.19
_IMAGE_
state.spt
Now you can inspect these. Caution, though! They are binary arrays. The
ascii files will look OK, but they are still not strings!
$ print x["JmolManifest.txt"].type
bytearray
$ print x["JmolManifest.txt"]
# Jmol Manifest Zip Format 1.1
# Created Tue Aug 18 18:22:06 CDT 2015
# JmolVersion 14.3.16_2015.08.17 2015-08-17 22:19
state.spt
[Note that JmolManifest.txt is not run - Jmol only looks for the first
".spt" file in it and runs that.]
# turn the byte array into a string:
s = "" + x["JmolManifest.txt"]
[change s]
# write it back into x
x["JmolManifest.txt"] = s;
# creating more stuff in x
x["testing.spt"] = "background red";
# write a new PNGJ file
write VAR x "test2.png"
UNFORTUNATELY there is a bug there in that very last command. Jmol
currently writes a ZIP file instead of a PNGJ file.
I've put up at least a Jmol.jar file that corrects that, Rolf.
http://chemapps.stolaf.edu/jmol/zip/Jmol.jar
Jmol.___JmolVersion="14.3.16_2015.08.21"
bug fix: write VAR x "test.png" creates a ZIP file instead of a PNGJ file
when x is from load("test.png",true)
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