Engineer & data visualization lover | Tae Bo Enthusiast
Public
Edited
Apr 30, 2024
Importers
// https://www.nytimes.com/interactive/2024/01/01/world/asia/japan-earthquake-map.html
// source https://ultimosismo.igp.gob.pe/descargar-datos-sismicos
magnitude = 5.5
dataHist[0].utcDate
data.filter(d => d.eventId == 23752)
//index = d3.rollup(data, ([d]) => +d.magnitude, d => d.id, d => d.utcDate2)
//positions = new Map(d3.groups(data, d => d.id).map(([id, [d]]) => [id, [d.lon, d.lat]]).filter(([, position]) => position))
//names = new Map(d3.groups(data, d => d.id).map(([id, [d]]) => [id, `${d.levelName4}, ${d.levelName3}`]))
//dates = Array.from(d3.group(data, d => d.utcDate2).keys())
//frames = new Map(d3.pairs(dates, (a, b) => [b, Array.from(index, ([id, data]) => [id, Math.max(0, (data.get(b) || 0) - (data.get(a) || 0), 0)])]))
pe = d3.json("https://cdn.jsdelivr.net/npm/latam-atlas@0.0.4/files/peru-100k.json")
features = topojson.feature(pe, pe.objects.level2)
districts = topojson.feature(pe, pe.objects.level4)
provinces = topojson.feature(pe, pe.objects.level3)
departments = topojson.feature(pe, pe.objects.level2)
borders = topojson.mesh(pe, pe.objects.level4, (a, b) => a == b)
segmentation = ([
{depth: 70, color: "#efedf5"},
{depth: 300, color: "#bcbddc"},
{depth: 700, color: "#756bb1"},
])
/*quakeDepthCategory = {
return d3.scaleThreshold()
.domain(segmentation.map(d => d.magnitude))
.range(segmentation.map(d => d.category))
}*/
depthScale = d3.scaleThreshold()
.domain(segmentation.map(d => d.depth))
.range(segmentation.map(d => d.color))
depthScale(69.999)
depthScale_ = d3.scaleThreshold()
.domain(segmentation.map(d => d.depth))
.range(segmentation.map(d => d.color))
depthScale_(60.99)
maxRadius = 1000
// Mw moment magnitude
// M6 is 31.62 times M5. For visualization purpuses we took 10, related of an increase of amplitude between each scale.
function powerScale(
magnitude,
timesPerScale = 30,
maxMagnitude = 10,
) {
const maxPower = Math.pow(timesPerScale, maxMagnitude)
const scaler = d3.scaleSqrt().domain([0, maxPower]).range([0, maxRadius])
return scaler(Math.pow(timesPerScale, magnitude))
}
Math.pow(powerScale(7), 2) / Math.pow(powerScale(7-1), 2)
powerScale(9)
powerScale(10)
// Barranca, Casma, Ocoña, Pisco
nanData = data.filter(d => d.magnitude >= 7.8)
layout
// use a cell reference so observable waits for the dom before render.
svgCell = {
return html`
<svg width=${width} height=${height} style="background-color:#d1e5f0" >
<g class="map" transform="translate(100, 20)"></g>
<g class="legendcl" transform="translate(0, ${innerHeight - 360})"></g>
<g class="legendbar" transform="translate(80, ${innerHeight + 30})"></g>
<circle r="10" stroke="red" fill="none" cx=585 cy=1024></circle>
</svg>
`}
html `<style type="text/css">
svg {
font-family: serif;
font-size: 12mm;
fill: navy;
}
.em {
fill: royalBlue;
}
.strong {
stroke: navy;
font-style: italic;
}
</style>`
html `<text x="5mm" y="2.1cm" >One,
<tspan class="em" dy="-0.5cm">Two,</tspan>
<tspan class="strong em" dy="-0.5cm">Three!</tspan>
</text>
`
atico = data.filter(d => d.magnitude > 8)
typeof(svgCell)
circleLegend(circleLegendArray, { // pass in array of values (e.g. min,mean/median & max)
// overide defaults
svg: d3.select(svgCell).select('g.legendcl'),
domain: [0, 9],
range: [0, 190], // 190 pixel is 9 earthquake
scale: powerScale,
title: "Magnitude (M)",
})
function mapChart(data, {
svg,
projection,
feature,
border,
colorScale,
radiusScale,
colorBy,
radiusBy,
thresholdBigMagnitude = 8,
thresholdMidMagnitude = 7.8
} = {}) {
const path = d3.geoPath(projection)
/* const svg = d3.create('svg')
.attr('viewBox', `0, 0, ${width}, ${height}`)*/
// add map
const innerChart = svg
.append('g')
.attr('transform', `translate(0, 0)`)
.attr('class', 'map')
innerChart
.append('g')
.attr('class', 'map-features')
.selectAll('path')
.data(feature.features)
.join('path') // enter().append('path')
.attr('d', path)
.attr('fill', '#ddd')
innerChart
.append('g')
.attr('class', 'map-borders')
.selectAll('path')
.data(border.features)
.join('path')
.attr('d', path)
.attr('fill', 'none')
.attr('stroke', 'gray')
.attr('stroke-width', 0.25)
.attr('stroke-linejoin', 'round')
.attr('pointer-events', 'none')
// Add data
let circleG = innerChart
.append('g')
.attr('class', 'map-data')
.selectAll(null)
.data(data, d => d.eventId)
.join('g')
.attr('transform', d => {
return "translate(" + projection(d.geometry.coordinates) + ")"
})
// add circles
circleG
.append('circle')
.attr('stroke', 'black')
.attr('fill-opacity', 0.8)
.attr('stroke-width', d => d.magnitude >= thresholdBigMagnitude ? 2 : 0.3) //
.attr('fill', d => colorScale(d[colorBy])) //
.attr("r", d => radiusScale(d[radiusBy])) //
// add text
const textCircles = circleG
.append('text')
.attr('text-anchor', "end")
.style("font-size", "15px")
.attr("x", 0)
.attr('y', 0)
.attr('stroke-width', 0.25)
.attr('text-anchor', 'middle')
.attr('stroke', d => {
return d.magnitude >= thresholdBigMagnitude ? 'black'
: d.magnitude >= thresholdMidMagnitude ? '#f0f0f0' : null})
textCircles
.append('tspan')
.attr('y', d => - (radiusScale(d[radiusBy]) + 20))
.text(d => {
const title = `M${format(d[radiusBy])}, ${d.year}`
return d.magnitude >= thresholdMidMagnitude ? title : null
})
textCircles
.append('tspan')
//.attr('text-anchor', 'middle')
.attr('x', d => {
const title = `${d.description}, ${d.department}`
return - (title.length - 10)
})
.attr('y', d => - (radiusScale(d[radiusBy]) + 5))
.text(d => {
const title = `${d.description}, ${d.department}`
return d.magnitude >= thresholdMidMagnitude ? title : null
})
// add lines guides
/*circleG.append('line')
.attr('stroke', d => {
return d.magnitude >= thresholdBigMagnitude ? 'black'
: d.magnitude >= thresholdMidMagnitude ? 'gray' : null})
.attr('x1', 0)
.attr('y1', 0)
.attr('x2', -40)
.attr('y2', -30)*/
return svg.node()
}
data
format = d3.format(".1f")
projection = {
const scale = 2000
//return d3.geoMercator().scale(scale).translate([3/2 * scale, 30])
return d3.geoIdentity().reflectY(true).fitSize([innerWidth, innerHeight], features)
}
innerWidth = width - margin.left - margin.right
innerHeight = height - margin.top - margin.bottom
//width = 900
width
height = 4/3 * width
/*html`
<style>
.sphere {
fill: #bbb;
}
.land {
fill: #666;
}
.boundry {
fill: none;
stroke: #bbb;
stroke-linejoin: round;
stroke-linecap: round;
vector-effect: non-scaling-stroke;
}
.overlay {
fill: none;
pointer-events: all;
}
</style>
`*/
array = [{ id: 1, value: 'a' }, { id: 2, value: 'b' }]
newArray = array.map(obj => {
if (obj.id === 1) {
return { ...obj, value: 'c' };
}
return obj;
});
piscoEqId = data.filter(d => d.magnitude >= 7.8 && d.year === 2007)[0].eventId
data_ = data.map(obj => {
if (obj.eventId === piscoEqId) {
return {
...obj,
distanceFromCoast: '40',
department: 'Ica',
description: 'Pisco'
}
}
return obj
})
data_.filter(d => d.even)
// // 2023-12-07 16:23:44 (UTC) // 1701966224580
// testing
{
const testh = "2023-12-07" + " " + "16:23:44.00".slice(0, 8) + " -0500"
const parseUtc = d3.utcParse("%Y-%m-%d %H:%M:%S %Z")
return parseUtc(testh).getTime()
}
// A day in miliseconds
{
const dateObj = new Date();
return dateObj.setDate(dateObj.getDate()) - dateObj.setDate(dateObj.getDate()-1)
}
// how to replace "/" with "-"
{ const s = "20/05/1973"
return s.replace(/[/]/g, x => ({"/": "-"})[x])
}
array2 = [
{ id: 1, name: "-" },
{ id: 2, name: "7.4" },
{ id: 4, name: "7.1" },
{ id: 5, name: "5.1" },
// ... more objects
]
// replace(/[-]/g, x => ({"-": ""})[x])
array2.map(obj => {
return {
...obj,
name2: obj.name.includes("-") ? obj.name.replace(/[-]/g, "") : obj.name // Replace "-" with "_"
};
}).map(d => {
return {
...d,
name2: +d.name2,
}
})
powerScale(test)
test = 9
circleSvgH = innerCircleHeight + margin.top + margin.bottom
innerCircleWidth = 4 * powerScale(9)
innerCircleHeight = 2 * powerScale(9)
{return html`<svg width=${circleSvgW } height=${circleSvgH} style="background-color:cyan">
<circle cx=${innerCircleWidth /4} cy=${circleSvgH/2} r=${powerScale(test)} fill="green" opacity=0.4></circle>
<circle cx=${innerCircleWidth * 3/4} cy=${circleSvgH/2} r=${powerScale(9)} fill="blue" opacity=0.4></circle>
</svg>`}
import {Legend, Swatches} from "@d3/color-legend"
import { rewind } from "@fil/rewind"
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