Wfpokorny: Initial bash example for df3 x,y,z size page

2016-08-18T16:35:12Z

Initial bash example for df3 x,y,z size page

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The following bash script will run on many operating systems. Place the lines between the two "cut here" lines into a file called df3xyzsize.sh and save it.

Run it, for example, with the command:

<pre>bash df3xyzsize.sh spiral.df3</pre>

which should output the lines:

<pre>
50
50
5
</pre>

assuming the spiral.df3 is that shipped with POV-Ray.

<pre>
----------------------------------------------- cut here ------------------------------------------
#!/bin/bash
#----------------------------------------------
# Convert the first 6 bytes of df3 file to a hex string which is
# then cut into three parts corresponding to the three unsigned, two
# byte integers. Each of these four character hex strings is then
# converted to an integer value and returned in x, y, z order.
#----------------------------------------------

echo $((16#`head -c 6 $1 | xxd -p | head -c 4`))
echo $((16#`head -c 6 $1 | xxd -p | tail -c 9 | head -c 4`))
echo $((16#`head -c 6 $1 | xxd -p | tail -c 5 | head -c 4`))

exit 0
----------------------------------------------- cut here ------------------------------------------
</pre>

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Wfpokorny: Initial bash example for df3 x,y,z size page