VMD-L Mailing List

From: Josh Vermaas (joshua.vermaas_at_gmail.com)
Date: Mon Mar 02 2020 - 12:50:48 CST

Hi Davood,

Yes! Although somewhat indirectly. In VMD, you specify resolution in pixel
counts with the "display resize" command. So if I wanted a 2 inch by 3 inch
image at 600dpi, I'd issue this command: "display resize 1200 1800". Render
as normal, and your pixel counts will be correct. Then whatever program you
use for printing/composition then just needs to set things to the correct
scale, since within a computer, pixels matter, not size (see
https://www.webdesignerdepot.com/2010/02/the-myth-of-dpi/ for a simple
explaination). Note that for extremely large resolutions (like for journal
covers where folks need high dpi), you may need to play some games with
your window manager to get VMD to actually open the window to the
resolution you want. I tend to prepare my figure first in a small window
with the correct aspect ratio, and then when I am ready for the final
render, move the OpenGL window mostly offscreen before issuing the command
so that the operating system window manager doesn't try to be clever and
limit the resolution to what my monitor can show.

-Josh

On Mon, Mar 2, 2020 at 11:33 AM Norouzi, Seyed <Davood.Norouzi_at_umassmed.edu>
wrote:

> Hi,
>
> How can I set the resolution of the rendered images in vmd?
> Is it possible, say, to set it to 600dpi?
>
> Thank you in advance,
> -Davood Norouzi
>
>