Yes, the example works for me, too, in J9.5 beta under Windows 11.
I see that dwin.ijs starts with
coinsert 'jgl2 fvj4'
require 'trig gl2'
coclass 'fvj4'
I've never got the hang of "require" !
In the installation on this laptop, which, like Raul's, has all addons
installed,
there are 4 gl2.ijs files in various addons folders; they have sizes
ranging from
1.75kb, in addons/ide/jnet/demo, to 13.5kb, in addons/ide/qt .
(There are no instances of gl2.ijs elsewhere in the Windows 11 J9.5 beta
installation.)
Which of these scripts will "require" acquire?
Sorry, this is a little off topic.
Thanks,
Mike
On 22/05/2023 21:19, Raul Miller wrote:
I was not able to reproduce the issue in j9.4 (nor in the j9.5 beta)
That said, I had performed
install'all'
before attempting.
FYI,
-- Raul On Mon, May 22, 2023 at 1:13 PM Devon McCormick
<[email protected]> wrote:
I was able to get this to work by setting up a drawing window like this
before trying "0 255 0 dpoly p1":
_2 _3 2 3 dwin 'example'
On Mon, May 22, 2023 at 4:09 PM Devon McCormick<[email protected]> wrote:
Trying to reproduce this error, I get a different error at the same step
(for version 9.4.22 on Windows 10 running JQt):
|value error: SC
| Y=.x:^:_1 SC 2{."1 y
I will look into this and report what I find.
On Mon, May 22, 2023 at 4:03 PM Nils Reuße<[email protected]> wrote:
Hi all,
I bought Part 1 of Cliff Reiters book "Fractals, Visualization and J,
Fourth edition“ and am trying out the introduction examples.
It first tells me to load an add-on, dwin.ijs [1], and then to create a
window, which works:
load '~addons/graphics/fvj4/dwin.ijs'
_1 _1 1 1 dwin 'hello'
Now, some data is created in p1:
]p1=: |:2 1 o./ 1r4p1*i.5
1 0
0.707107 0.707107
6.12323e_17 1
_0.707107 0.707107
_1 1.22465e_16
And finally, the data is supposed to be drawn with ‚dpoly‘, which fails:
0 255 0 dpoly p1
|psel : command failed: psel
: wd
| (LF,~wd ::(''"_)'qer') (13!:8)3
The book states that the examples were tested with J8.04, I’m on
J9.4.2/j64arm/darwin. There is an official repository containing the code
for the book [2], but it might be out of date anyways.
Is the code incompatible with J9.4 or am I doing something wrong?
- Nils
[1]https://github.com/jsoftware/graphics_fvj4/blob/master/dwin.ijs
[2]https://github.com/jsoftware/graphics_fvj4
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--
Devon McCormick, CFA
Quantitative Consultant
--
Devon McCormick, CFA
Quantitative Consultant
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