A couple of us have been discussing using viewmat to make virtual "crayons"
for first graders in J with the following code. I am limited to using iPad
J, so there are at least 2 "issues" which so far limit the use of the
following code.
GRB=:1 0 2{"1 (#:i.8){0 255
]A=:>:i.8
GRB viewmat A
One issue is that viewmat does not seem to accept the GRB argument on iPad
viewmat. The only workaround I have so far is to just use `viewmat A`,
without the palette.
The other issue is that the resulting graphic is very tiny and I don't know
how to alter its size. I have tried using a physical pinch with no success.
While I am on the subject of iOS J, I wonder if anyone has used the html
(and javascript, if that is possible) to produce html5 canvas or webgl in
the "." window of the J app?
Any ideas?
Thanks,
--
(B=)
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