[NTG-context] Undefined control sequence: \pdfpxdimen

Aditya Mahajan adityam at umich.edu
Tue Jun 23 00:04:43 CEST 2020

On Mon, 22 Jun 2020, Aditya Mahajan wrote:

> Replying to an old thread ... but drops module does not work with lmtx 
> because 
> \pxdimen is not defined.
> On Thu, 10 Mar 2016, Hans Hagen wrote:
>> On 3/10/2016 12:03 AM, Aditya Mahajan wrote:
>>> The drops module uses the primitive \pdfpxdimen in a couple of places,
>>> but that is no longer defined in the current beta. What is the
>>> equivalent command now?
>>> Examples of usage:
>>> \pdfpxdimen1in\relax\divide\pdfpxdimen\numexpr\dropsparameter\c!
>>> resolution\relax % set actual pixel dimension
>> just \pxdimen (as it's not related to pdf)
> What will be the equivalent of \pxdimen in LMTX?

Just realized that this is a bug in t-drops: Line 143 of t-dropx.mkiv says

\doifundefined{pdfvariable} {\let\pxdimen\pdfpxdimen} % \pxdimen in luatex 0.85

Commenting that out fixes the bug.


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