Published
Edited
Jan 20, 2021
md`# Trajekt_orije`
projection = d3
.geoAlbers()
.rotate([-15, 0])
.fitExtent([[100, -height * 1.5], [width * 2.5, height * 3.2]], geojson)
random = 0.002
mapaRvacke = {
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style('background-color', 'lightblue');
const paths = svg
.selectAll('path')
.data(geojson.features)
.enter()
.append('path')
.attr('fill', '#eee6cc')
.attr('d', path);
const citiesGroup = svg
.selectAll('.cities')
.data(mjesta)
.enter()
.append('g')
.attr(
'transform',
d =>
`translate(${projection(d.coordinates)[0]},${
projection(d.coordinates)[1]
})`
);
addCityLabel(svg, mjesta);
for (var trip = 0; trip < data.length; trip++) {
const tripData = [...data[trip]];
if (trip % 2) tripData.reverse();
svg
.selectAll(`.jadroline${trip}`)
.data([tripData])
.enter()
.append('path')
.attr('class', `jadroline${trip}`)
.attr('stroke', 'grey')
.attr('stroke-width', 3)
.style('opacity', 0)
.attr('fill', 'none')
.attr('d', jadroline)
.call(reveal, trip);
}
return svg.node();
}
addCityLabel = (svg, data) => {
const citiesGroup = svg
.selectAll('.cities')
.data(data)
.enter()
.append('g')
.attr(
'transform',
d =>
`translate(${projection(d.coordinates)[0]},${
projection(d.coordinates)[1]
})`
);
citiesGroup
.append('circle')
.attr('r', 4)
.attr('fill', 'white');
citiesGroup.append('circle').attr('r', 2);
citiesGroup
.append('text')
.attr('class', 'text-shadow')
.attr('dx', 5)
.style('stroke', 'white')
.style('stroke-width', 2.5)
.style('opacity', 0.9)
.style('pointer-events', 'none')
.text(d => d.name);
citiesGroup
.append('text')
.attr('dx', 5)
.attr('fill', 'darkgrey')
.style('pointer-events', 'none')
.text(d => d.name);
}
duration = 1000
mjesta = [
{ name: "Pula", coordinates: [13.843699, 44.871084] },
{ name: "Mali Lošinj", coordinates: [14.462446, 44.536343] }
]
reveal = (path, index) =>
path
.transition()
.duration(duration)
.delay(index * duration + index * 100)
//.ease(d3.easeLinear)
.ease(d3.easeCubicInOut)
.style('opacity', 1)
.attrTween("stroke-dasharray", function() {
const length = this.getTotalLength();
return d3.interpolate(`0,${length}`, `${length},${length}`);
})
.transition()
.attr('stroke-width', 0.25)
jadroline = d3
.line()
// .curve(d3.curveCardinal)
.curve(d3.curveCatmullRom)
.x(d => projection(d)[0])
.y(d => projection(d)[1])
projection(pulaLosinj[1])
data = {
let retval = new Array();
for (var trip = 0; trip < 5; trip++) {
retval.push(
pulaLosinj.map((d, i) => {
if (i > 0 && i < pulaLosinj.length - 2)
return [
Math.random() * random * d[0] + (1 - random) * d[0],
Math.random() * random * d[1] + (1 - random) * d[1]
];
else return d;
})
);
}
return retval;
}
pulaLosinj = [
[13.831772, 44.868583],
[13.779453, 44.881714],
[13.907927, 44.753022],
[14.368040, 44.533403],
[14.430366, 44.557899],
[14.462446, 44.536343]
]
path = d3.geoPath(projection)
height = 600
topoHrv = FileAttachment("hrvatska.1.tomo.topojson (1).json").json()
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