Re: [Axiom-developer] drawRibbons from the book

[Vanuxem Grégory]

Le dimanche 05 novembre 2006 à 11:47 -0800, Richard Harke a écrit :
> I have been working my way through the book.  The first version of
> drawRibbons (Section 10.2, page 487) seems to work as described.
> The second version (section 10.3,  page 489) produces some error
> messages which I don't understand. The following is the session.
> (after a )clear all)


> 
> (1) -> )read ribbons
> drawRibbons(flist, xrange, yrange) ==
>   sp := createThreeSpace()
>   num := # flist
>   yVar := variable yrange
>   y0:Float := lo segment yrange
>   width:Float := (hi segment yrange - y0)/num
>   for f in flist for color in 1..num repeat
>     makeObject(f, xrange, yVar=y0..y0+width,
>        var2Steps == 1, colorFunction == (x,y) +-> color,
>        space == sp)
        ^
You have to indent this line (it will be be considered as a continuation
of the previous line) or use an underscore (line continuation
character), so:

    makeObject(f, xrange, yVar=y0..y0+width,
       var2Steps == 1, colorFunction == (x,y) +-> color,
          space == sp)
or

    makeObject(f, xrange, yVar=y0..y0+width,
       var2Steps == 1, colorFunction == (x,y) +-> color,_
       space == sp)

With an underscore the indentation does not matter. I don't know if your
code used to work in the past.

Greg