Yes, indeed. The metafun manual also explains things about overlays and layers
I hadn't known. I'd previously ignored that manual.
Thank you,
Peter
> On 5/10/2023, at 7:05 PM, Thomas A. Schmitz
> wrote:
>
> Have a look at chapter 6.4 of the metafun manual. You need StartPage ...
> StopPage in your MPcode, then you can knock yourself out by using variables
> such as PaperHeight or TextHeight and do all sorts of calculations.
>
> All best
>
> Thomas
>
> On 10/5/23 05:54, peter.hopcroft--- via ntg-context wrote:
>> Hello list, I want to draw lines on a page. I want to pass my line
>> coordinates as a percent of \width or \textheight, rather than as
>> millimetres. So that if I change the page size I don't need to change the
>> coordinates. The MWE below compiles but the pdf does not have any lines
>> drawn on it. Is there a way of doing calculations on the coordinates for the
>> draw using ConTexT variables like \textheight? Thank you, Peter Hopcroft
>
>
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