Advice for Reader's of
Fractals, Visualization and J, 2nd edition
using J5.01
A number of J features have changed in J5.01 which
require minor or substantial changes to the scripts
and labs associated with the book. When minor
changes were made, the names remained the same, when
more siginificant changes were made, the name was
changed. The script and image files required for the
text under J501 are contained in fvj2b.zip.
Original Scripts Script for J5.01
alan.ijs alan.ijs
chaotica.ijs chaotica2.ijs
dwin.ijs dwin+.ijs
owin.ijs owin+.ijs
ped8.ijs ped8b.ijs
povkit.ijs povkit+.ijs
raster4.ijs raster5.ijs
ts_data.ijs ts_data.ijs
There are five labs which should be placed into
the user/labs directory.
chaotica2.ijt
dwin+.ijt
owin+.ijt
povkit+.ijt
raster5.ijt
Most of the images created in the text can be
more or equally conveniently read or written
using tools from the image 3 addon
(available from Jsoftware)
In particular, to read an 8-bit paletted image file
'p b'=:readbmp8 'image.bmp' (raster5)
'p b'=:pal_read_bmp 'image.bmp' (image3)
(p;b) write_image 'image.bmp (image3)
However, similar statements under image3 use
png's which are typically much smaller files
'p b'=:pal_read_png 'image.png' (image3)
(p;b) write_image 'image.png (image3)
Also, the image3 addon has facilties for creating
*.mov animations from J without using other tools.