Hi! On 02.03.2011 12:25, Ian Lawrence wrote:
Sorry. me again...and I have been all over the wiki, mailing lists and manuals...
I have this:
\setlayer[progresssteps]% name of the layer [hoffset=904 px, voffset= 28\nuggetnumber px] % placement (from upper left corner of the layer) {\stepstack} % the actual contents of the layer
And I am hoping that as I increase nuggetnumber the voffset of the layer will be 28*nuggetnumber
I am setting nuggetnumber like this for the moment:
\def \nuggetnumber{3}
(in the other dev document it is the result of counter, so set dynamically)
and this in the text
\nuggetnumber
which compiles to '3', so I assume the assignment is good to go.
varying both nuggetnumber and the scale factor (28) shift the layer up and down, but not in a way that suggests that 28\nuggetnumber is being evaluated as a product (so a scale factor of 7 and a nuggetnumber of 2 do not give the same output as a scale factor of 2 and a nuggetnumber of 7).
If you expect a product you should tell ConTeXt you want a product. You don't do that with "28\nuggetnumber px". Check out http://wiki.contextgarden.net/Expressions I think "\dimexpr\nuggetnumber*28px\relax" should get you there, but I'm not sure (untested). Stefan
So I am led to think that there is something in the evaluating that is going wrong - data types / units? (if I hard code in the results I am expecting, say 28 px, 56 px or 84 px then I get exactly what I want...
Thanks, as ever
(Same result in ConTEXt ii or iv) Ian
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