Hello again, likely a bug and one question. Using this code with lmtx: \starttext \externalfigure[mill][width=40mm,cache=./first,conversion=gray.pdf] % mill... \externalfigure[mill][width=40mm,cache=.,conversion=gray.pdf] % m_k_i_v_mill... \externalfigure[mill][width=40mm,cache=./second] % no visible caching \stoptext *First two figures* Chached image in the ./cache subdirectory has a lmtx name without prefix, the cached image in the current directory has mkiv syntax with m_k_i_v_ prefix. *Third figure* The images are cached to a specified directory, only when some conversion is used. I'd like to cache images without any transformation. Is there any conversion which doesn't alter the figure, just caches it? Is new conversion type needed? Or is there other way to force caching without conversion? Thank you, Jano On Wed, Jun 9, 2021 at 3:23 PM Jano Kula wrote:

Hello Hans,

On Sun, Jun 6, 2021 at 4:56 PM Hans Hagen wrote:

...

On 6/6/2021 1:16 PM, Jano Kula wrote:

...

Hello list,

usingconversion=gray.pdf in lmtx the cached images' names have some string in their name. I thought it's a name of random sequence of luatex cache, but the string is the same on other machines and I don't know, where it comes from. mkiv used to have m_k_i_v_ string there.

hacker.pdf = source image hacker_jpg_c60ccda70ef92e32d7a6334f31c23259.gray.pdf = cached linux hacker_jpg_c60ccda70ef92e32d7a6334f31c23259.gray.pdf = cached win

MWE \starttext \externalfigure[hacker] [cache=./, conversion=gray.pdf] \stoptext

Is it intended behavior? sure, something like that is always intended; it's an md5 of a hash of all relevant parameters so that when you change one (say the resolution) we now that we need to update

Thank you, wiki updated. J.

Hi Aditya! On Fri, Jul 2, 2021, 17:43 Aditya Mahajan wrote:

On Fri, 2 Jul 2021, Jano Kula wrote:

...

Hello again,

likely a bug and one question. Using this code with lmtx:

\starttext \externalfigure[mill][width=40mm,cache=./first,conversion=gray.pdf] % mill... \externalfigure[mill][width=40mm,cache=.,conversion=gray.pdf] % m_k_i_v_mill... \externalfigure[mill][width=40mm,cache=./second] % no visible caching \stoptext

*First two figures* Chached image in the ./cache subdirectory has a lmtx name without prefix, the cached image in the current directory has mkiv syntax with m_k_i_v_ prefix.

*Third figure* The images are cached to a specified directory, only when some conversion is used. I'd like to cache images without any transformation. Is there any conversion which doesn't alter the figure, just caches it? Is new conversion type needed? Or is there other way to force caching without conversion?

Conversion is costly and that is why caching makes sense there. What is the benefit of caching (i.e., simply copying the file to a different directory) when there is no conversion?

Images are on the remote sever and I don't want to download them with every run. Images don't change, changed ones have different ID. Encapsualating jpgs into pdfs might be the right conversion, because pdf inclusion is fast, right? So I probably answered myself: write a conversion jpg -> pdf without any changes to the image. J.

Aditya

___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net

___________________________________________________________________________________