29:null 2a:["$","title",null,{"children":"FA2023 Forest Area (d3) | Angie Hjort | Observable"}] 2f:T466,chart = { const svg = d3.create("svg").attr("viewBox", `0, 0, ${width}, ${height}`) const tooltip = d3.select("body").append("div") .attr("class", "tooltip") .style("position", "absolute") .style("visibility", "hidden") svg.selectAll("path") .data(countries.features) .enter() .append("path") .attr("d", path) .attr("stroke", "#111") .attr("stroke-width", 0.5) .attr("fill", d => d.properties.data?.get(newyear) ? cScale(d.properties.data.get(newyear)[0].change) : "lightgrey") .on("mouseover", function(event, d) { let text = d.properties.name const change_label = d.properties.data.get(newyear)[0].change text = text + "\nNet Forest Area Change: " + change_label + " ha" showToolTip(text, [event.pageX, event.pageY]) }) .on("mousemove", function(event) { d3.select(".tooltip") .style("top", event.pageY - 10 + "px") .style("left", event.pageX + 10 + "px") }) .on("mouseout", function() { 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time period from 1990 to 2020.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":942,"value":"viewof newyear = Inputs.radio([].concat(years), {label: playButton});","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":222,"value":"$2f","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":915,"value":"legend({\n color: cScale1,\n title: \"Net forest area change\",\n tickFormat: t => t,\n width: 1150,\n});","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":200,"value":"await FileAttachment(\"2Cleaned-Net-Forest-Area.csv\").csv({typed: \"auto\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":39,"value":"showToolTip = (text, coords) => {\n d3.select(\".tooltip\")\n .text(text)\n .style(\"top\", coords[1] + \"px\")\n .style(\"left\", coords[0] + \"px\")\n .style(\"visibility\", \"visible\");\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":505,"value":"originalDomain = [ -400001, -400000, -200000, -10000, 0, 10000, 200000, 400000, 400001];","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":878,"value":"cScale = (change) => {if (change == 0) {\n return '#FFFFFF';\n } else if (change <= -400001) {\n return '#d73027';\n } else if (change >= -400000 && change <= -200001) {\n return '#f46d43';\n } else if (change >= -200000 && change <= -100001) {\n return '#fdae61';\n } else if (change >= -100000 && change <= -0.99) {\n return '#fee08b';\n } else if (change >= 0.01 && change <= 100000) {\n return '#AFE1AF';\n } else if (change >= 100001 && change <= 200000) {\n return '#93c72e';\n } else if (change >= 200001 && change <= 400000) {\n return '#097969';\n } else if (change >= 400001) {\n return '#355E3B';\n }\n}\n ","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":530,"value":"categories = originalDomain.map((d) => {\n if (d === 0) {\n return `0`;\n } else if (d <= -400001) {\n return `Over -400000 ha`;\n } else if (d >= -400000 && d <= -200001) {\n return `-400000 ha and less`;\n } else if (d >= -200000 && d <= -100001) {\n return `-200000 ha and less`;\n } else if (d >= -100000 && d <= -0.99) {\n return `-100000 ha and less`;\n } else if (d >= 0.01 && d <= 100000) {\n return `100000 ha and less`;\n } else if (d >= 100001 && d <= 200000) {\n return `200000 ha and less`;\n } else if (d >= 200001 && d <= 400000) {\n return `400000 ha and less`;\n } else if (d >= 400001) {\n return `Over 400000 ha`;\n }\n}).filter(category => category !== null)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":528,"value":"cScale1 = d3.scaleOrdinal()\n .domain(categories)\n .range([\n '#d73027',\n '#f46d43',\n '#fdae61',\n '#fee08b',\n \"white\",\n '#AFE1AF',\n '#93c72e',\n '#097969',\n \"#355E3B\"\n ]); ","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":43,"value":"outline = ({ type: \"Sphere\" })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":45,"value":"projection = d3.geoNaturalEarth1()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":47,"value":"path = d3.geoPath(projection)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":41,"value":"height = {\n const [[x0, y0], [x1, y1]] = d3.geoPath(projection.fitWidth(width, outline)).bounds(outline);\n const dy = Math.ceil(y1 - y0), l = Math.min(Math.ceil(x1 - x0), dy);\n projection.scale(projection.scale() * (l - 1) / l).precision(0.2);\n return dy;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":88,"value":"countries = {\n // group entities by name and year\n const entities = d3.group(data, d => d.country, d => d.year);\n \n // attach data to each country in properties\n const countries = topojson.feature(world, world.objects.countries);\n countries.features.forEach(country => {\n country.properties.data = entities.get(country.properties.name);\n })\n \n return countries\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":937,"value":"countries.features.find(m => m.properties.name.includes(\"United\"))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":49,"value":"rawdata = d3.csvParse(await FileAttachment(\"2Cleaned-Net-Forest-Area.csv\").text(), d => {\n return d;\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":206,"value":"data = rawdata.map(d => {\n return {\n country: d.Country === \"United States\"? \"United States of America\" : d.Country,\n year: d.Years,\n change: (d[\"Net Forest Change (hectares)\"])\n }\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":57,"value":"years = Array.from(new Set(data.map(d => d.year).sort()))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":33,"value":"world = await FileAttachment(\"countries-110m.json\").json()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":60,"value":"topojson = require(\"topojson-client@3\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":62,"value":"import {Scrubber} from \"@mbostock/scrubber\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":65,"value":"import { legend } from \"@d3/color-legend\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":78,"value":"import { slider } from \"@jashkenas/inputs\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1009,"value":"playButton = html``;","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1012,"value":"playButton.onclick = () => {\n const radioOptions = viewof newyear.querySelectorAll(\"input[type='radio']\");\n let currentIndex = Array.from(radioOptions).findIndex(radio => radio.checked);\n \n // If no radio is selected or the last one is selected, start from the beginning\n currentIndex = (currentIndex === -1 || currentIndex === radioOptions.length - 1) ? 0 : currentIndex + 1;\n\n radioOptions[currentIndex].click()\n};\n","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":82,"value":"d3 = require(\"d3@6\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":85,"value":"styles = html`\n `","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W30","stdlib":"1","titling":"auto"}} 2e:"$2d:body"