[fluxus] build error: PDataArithmetic.cpp

[james tittle]

On Nov 29, 2005, at 10:32 AM, Dave Griffiths wrote:
>
> this one should do it:
>
> (clear)
> (point-width 3)
> (rotate (vector 0 90 0))
> (define p (build-particles 100))
>
> (define (init n)
>     (pdata-set "p" n (vsub (vector 0 (flxrnd) (flxrnd)) (vector 0  
> 0.5 0.5)))
>     (let ((c (flxrnd)))
>     (pdata-set "c" n (vector c c c)))
>     (if (< n 1)
>         0
>         (init (- n 1))))
>
> (define (update n)
>     (let ((closest (pdata-op "closest" "p" n)))
>         (let ((dir (vmul (vnormalise (vsub (pdata-get "p" n)  
> closest)) 0.4))
>               (centre (vmul (vnormalise (vsub (vector 0 0 0) (pdata- 
> get
> "p" n))) 0.3)))
>             (pdata-set "vel" n
>                 (vmul (vnormalise
>                     (vadd (vmul (vadd dir centre) 0.001) (pdata-get  
> "vel"
> n))) 0.02 ))))
>
>     (if (< n 1)
>         0
>         (update (- n 1))))
>
> (define (anim)
>     (grab p)
>     (update (pdata-size))
>     (pdata-op "+" "p" "vel")
>     (ungrab))
>
> (grab p)
> (pdata-add "vel" "v")
> (init (pdata-size))
> (ungrab)
>
> (every-frame "(anim)")
>
> (blur 0.1)

...hmm, the good news is that it doesn't crash either way (with/ 
without "*"), but the bad news is that this script doesn't produce  
anything here...

>> ...there are a coupla weird things I've noticed:
>>
>> 1.  can't seem to get workspaces 2-8 working:  ctrl-1, 9, and 0 work,
>> but any others have no effect
>
> has this gone wrong recently? works ok here but there is a horrible  
> switch
> in main.cpp (104) that you might have to change - a bunch of  
> numbers that
> seem to work with ctrl, I thought they might be different on  
> another os,
> but no one seemed to complain :)

...I'll look into that:  it has been a longtime problem for me, but I  
just never mentioned it ;-)

>> 2.  I need to reset the current working directory on osx, because atm
>> it's looking for files where the binary is, which is fluxus.app/
>> Contents/MacOS/fluxus...so, in order to access a file in a directory
>> of the same level as fluxus.app, you have to (load "../../../../../
>> examples/whatever.scm"), which is a bit of a pain ;-\
>
> If I get time I'd like to get rid of the examples and make some proper
> scripts which can also be used as tests in the future. The examples
> directory is full of stuff which may or may not be up to date.
>
> I might leave this till the next release though :)

...no prob:  it really isn't a problem to make the default directory  
external to the application package, it's just that I haven't done it!

james