Dear Olivier, Many thanks for your reply.
Very cool. You know what I thought ? I thought you had modified the A4 sheet size to compute the paperheight and paperwidth ? I wonder if that's another way of proceeding. Best, Ashim On Sat, Nov 18, 2023 at 12:51 PM Olivier Crouzet <olivier.crou...@univ-nantes.fr> wrote: > > Dear Ashim, > > these are documented in the LaTeX 'geometry' package (see for example > on CTAN: https://ctan.org/pkg/geometry). As I added in my response on > Stackoverflow, several parts in the RMarkdown header actually concern > information that are processed by LaTeX to actually generate the PDF, > among which the 'geometry' line. For someone who is used to working with > LaTeX, it is relatively natural to 'identify' LaTeX options in these > lines even though they are not structured exactly this way in a LaTeX > document (but their names are the same). > > Concerning the choice for these specific numbers, it is relatively > arbitrary. I've been doing this on LaTeX for years when I want to > generate slides without using the 'beamer' document class and the > things to take into account are: > > - These dimensions express the physical sizes of the pdf page (in a > sense, what their size would be if you print the document without > adapting to the paper in your printer) > - If these sizes are reduced... the relative font size will increase > because LaTeX will project the same font on a smaller virtual paper, > - And if these sizes are increased... the relative font size will > decrease because LaTeX will project the same font on a larger > virtual paper, > - I processed starting from 16x9cm sizes, resp. for paperwidth and > paperheight, and estimated that the fonts were too large to my taste, > then doubled them and felt that the fonts were too small for slides, > then I ended up trying multiplying 16x9cm by a factor of 1.5, which > gave me 24x13.5cm and I found it was ok. > - But one may vary these sizes arbitrary (even using smaller > steps and ratios differing from 16/9) depending on the aims to be > reached. > - It is also possible to specify different units (pt = points, in = > inches...) > > Yours. > Olivier. > > On Sat, 18 Nov 2023 09:53:19 +0530 Ashim Kapoor <ashimkap...@gmail.com> > wrote: > > > Dear Olivier, > > > > Many thanks for your reply. > > > > This works well for me. > > > > How did you come up with the pagewidth / pageheight numbers? I do > > understand that their ratio = 16:9, > > but how did you choose these numbers? > > > > Best Regards, > > Ashim > > > > On Fri, Nov 17, 2023 at 9:25 PM Olivier Crouzet > > <olivier.crou...@univ-nantes.fr> wrote: > > > > > > Dear Ashim, > > > > > > I don't think the aspectratio is appropriate in this context because > > > it would imply that the beamer (LaTeX) class is used but you're > > > actually using the article (LaTeX) class. > > > > > > You may use specifications of the geometry package rather than > > > specifying options to the class: > > > > > > e.g. replace your current header: > > > > > > --- > > > title: "Testing landscape and aspect ratio" > > > output: > > > pdf_document: > > > number_sections: true > > > classoption: > > > - landscape > > > - "aspectratio=169" > > > header-includes: > > > - \usepackage{dcolumn} > > > documentclass: article > > > geometry: margin=1.5cm > > > --- > > > > > > with this one: > > > > > > --- > > > title: "Testing landscape and aspect ratio" > > > output: > > > pdf_document: > > > number_sections: true > > > header-includes: > > > - \usepackage{dcolumn} > > > documentclass: article > > > geometry: margin=1.5cm, paperwidth=24cm, paperheight=13.5cm > > > --- > > > > > > Of course, you may change the exact dimensions and it will impact > > > the relative font sizes. I've tested it and it generates what you > > > want. > > > > > > Yours. > > > Olivier. > > > > > > > > > > > > > > > > > > On Tue, 14 Nov 2023 10:03:23 > > > +0530 Ashim Kapoor <ashimkap...@gmail.com> wrote: > > > > > > > Dear all, > > > > > > > > I have posted a query which has received a response but that is > > > > not working on my computer. > > > > > > > > Here is the query: > > > > > > > > https://stackoverflow.com/questions/77387434/pdf-from-rmarkdown-landscape-and-aspectratio-169 > > > > > > > > Can someone please help me ? > > > > > > > > Best Regards, > > > > Ashim > > > > > > > > ______________________________________________ > > > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > > > https://stat.ethz.ch/mailman/listinfo/r-help > > > > PLEASE do read the posting guide > > > > http://www.R-project.org/posting-guide.html and provide commented, > > > > minimal, self-contained, reproducible code. > > > > > > > > > -- > > > Olivier Crouzet, PhD > > > http://olivier.ghostinthemachine.space > > > /Maître de Conférences/ > > > @LLING - Laboratoire de Linguistique de Nantes > > > UMR6310 CNRS / Université de Nantes > > > > > > ______________________________________________ > > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > > https://stat.ethz.ch/mailman/listinfo/r-help > > > PLEASE do read the posting guide > > > http://www.R-project.org/posting-guide.html and provide commented, > > > minimal, self-contained, reproducible code. > > > -- > Olivier Crouzet, PhD > http://olivier.ghostinthemachine.space > /Maître de Conférences/ > @LLING - Laboratoire de Linguistique de Nantes > UMR6310 CNRS / Université de Nantes > > ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
