Eli the Bearded wrote: > In comp.lang.python, Roy Hann <specia...@processed.almost.meat> wrote: >> I am designing a mobile application to run on a Raspberry Pi 3 model B. >> It will not have any Internet access. I need to generate a static image >> consisting of a simple arc representing (say) a speedometer or a >> pressure gauge. The image will need to be regenerated every 5 seconds. >> The image must be displayed in a web browser (served by gunicorn >> running on the Pi). I prefer it to be a PNG but that is only a >> preference. > > The browser can probably display SVG. So generating that may be easier. > Is the browser running on the same system? You say no "Internet access", > but that's not the same as "no network access".
You are correct to this point; the Pi is serving HTML to the experimental browser on a Kindle 4 over wifi. > A browser running on a > different local system might have more CPU oomph to handle the "SVG to > bitmap for display" step. Sadly the Kindle, impressive as it is, ain't no workhorse. That said, I've only assumed it would be more efficient to hand it PNGs to render. I should actually test it rendering SVGs. I set out down the PNG road on the assumption PNGs would be easy to generate. Thanks for steering me back to SVG. Roy -- https://mail.python.org/mailman/listinfo/python-list
