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xslt 2. index-of, nodes

2003-07-03 04:00:56
Lots of nodes like
  <loc hl="lower" side="right" pos="5">date</loc>

I'm generating SVG.

I want to draw out each loc node, two items
  a circle, position fixed, ie. overlapping, and 
  text, the date, which does not overlap.

Hence I need to find out, roughly
 whether the context-item() is 1,2,3,4 etc, in
 the sequence of all loc elements with identical hl, side and pos
attributes.
Then I can shift the x or y index to offset the text round the circles

with a 
variable name='set' 
  select='//loc[(_at_)hl=$context/@hl and @side=$context/@side and
@pos=$context/@pos]'

What's not working as I expect  is index-of($set,context-item())
  since (I guess) it uses typed value, not the node itself?
(Always returns 1)
Any suggestions how I might obtain such a position please?

Regards DaveP.

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