alex4.js

const { load } = require("@alex.garcia/observable-prerender");
const puppeteer = require("puppeteer");

async function main() {
    let mapWidth = 1920
    let mapHeight = 1080
    // let startDate = "20200301"

    let startDate = "20200420"

    const browser = await puppeteer.launch({
        defaultViewport: { 
            width: mapWidth, 
            height: mapHeight,
            deviceScaleFactor: 2
        },
        // args: [`--window-size=${mapWidth},${mapHeight}`],
    });
    const notebook = await load(
    "@codingwithfire/cmu-covidcast-api-map-maker-bubbles-ii",
    ["map"],
    { browser }
    );
    await notebook.redefine("date", startDate);
    const days = await notebook.value("days");
    console.log("going to work on", days.length, "days")


    const outputFolder = 'output6'
    const signals = await notebook.value("sensors");
    const signalMap = await notebook.value("signalMap")
    const signalID = await notebook.value("signal")
    const signal = signalMap[signalID]
    for await (let signal of signals) {
    //     // console.log("rendering signal", signal.name)

        let dayNum = 0
        for await (let day of days) {
            // console.log("rendering", dayNum, day)
            // await notebook.redefine("mapWidth", mapWidth);
            // await notebook.redefine("mapHeight", mapHeight);
            await notebook.redefine("date", day);
            await notebook.redefine("signal", signal.key);
    
            await notebook.screenshot("map", `${outputFolder}/${signal.key}_${("000" + dayNum).slice(-3)}.png`);
            // await notebook.svg("map", `${county.name}.svg`);
            dayNum++
        }
        console.log(`ffmpeg -framerate 12 -i ${outputFolder}/${signal.key}_%03d.png -c:v libx264 -pix_fmt yuv420p ${outputFolder}/${signal.key}.mp4; `)
        //console.log(`ffmpeg -framerate 15 -i output/${signal.key}/${signal.id}_%03d.png -vf "minterpolate=fps=25:mi_mode=mci:mc_mode=aobmc:me_mode=bidir:vsbmc=1" -c:v libx264  -pix_fmt yuv420p output/${signal.key}/${signal.id}.mp4`)
    }
    //ffmpeg -framerate 2 -i output3/doctor-visits_%03d.png -c:v libx264 -pix_fmt yuv420p output3/doctor-visits.mp4


    await notebook.browser.close();
    
}
main();