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<template>
<div id="geshem">
<div id="datetime">
<div id="date">{{ date }}</div>
<div id="time">{{ time }}</div>
</div>
<div id="slider">
<vue-slider ref="slider" v-model="slider" :min=1 :max=7></vue-slider>
</div>
</div>
</template>
<script>
import vueSlider from 'vue-slider-component';
import mapboxgl from 'mapbox-gl';
export default {
name: 'geshem',
components: {
'vue-slider': vueSlider
},
data: function () {
return {
imgs: window.imgs,
res: 280,
slider: 7,
rasterCoords: {
140: [
[33.35317413, 33.27232471],
[36.32243686, 33.27232471],
[36.32243686, 30.72293428],
[33.35317413, 30.72293428]
],
280: [
[31.93095218, 34.5156862],
[37.86644267, 34.5156862],
[37.86644267, 29.42911589],
[31.93095218, 29.42911589]
]
},
map: new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/dark-v9',
container: 'map',
maxZoom: 10,
minZoom: 5,
zoom: 6.3,
center: [35, 31.9],
hash: false
})
}
},
computed: {
date: function () {
var d = this.imgs[this.res][7-this.slider].substr(0, 8);
return `${d.substr(6, 2)}-${d.substr(4, 2)}-${d.substr(0, 4)}`;
},
time: function () {
var t = this.imgs[this.res][7-this.slider].substr(9, 6);
return `${t.substr(0, 2)}:${t.substr(2, 2)}`;
},
curImg: function () {
return 7 - this.slider;
}
},
created: function () {
var vm = this;
this.map.on('style.load', function () {
var i = 0;
while (i < vm.imgs['140'].length) {
vm.addRadarSource('140', i, vm.imgs['140'][i++])
}
var i = 0;
while (i < vm.imgs['280'].length) {
vm.addRadarSource('280', i, vm.imgs['280'][i++])
}
vm.addRadarLayer('280', 0)
});
this.map.on('zoom', function () {
var zoomIn = vm.map.getZoom() > 7;
var from = zoomIn ? '280' : '140';
var to = zoomIn ? '140' : '280';
if (to != vm.res) {
console.log(`Zoom event from ${from} to ${to}`);
vm.removeRadarLayer(from, vm.curImg);
vm.addRadarLayer(to, vm.curImg);
vm.res = to;
}
});
},
methods: {
addRadarSource: function(res, i, url) {
this.map.addSource(`radar-${res}-${i}`, {
type: 'image',
url: '/static/img/' + url,
coordinates: this.rasterCoords[res]
})
},
addRadarLayer: function(res, i) {
this.map.addLayer({
id: `radar-${res}-${i}`,
source: `radar-${res}-${i}`,
type: 'raster',
paint: {
'raster-opacity': 0.85
}
})
},
removeRadarLayer: function(res, i) {
this.map.removeLayer(`radar-${res}-${i}`)
}
},
watch: {
slider: function (to, from) {
this.removeRadarLayer(this.res, 7-from);
this.addRadarLayer(this.res, 7-to);
}
}
}
</script>
<style lang="scss">
#geshem {
#datetime {
position: absolute;
margin: 20px 0px 0px 20px;
color: white;
font-family: monospace;
#date {
font-size: 1.4em;
}
#time {
font-size: 1.8em;
}
}
#slider {
position: absolute;
bottom: 10vh;
width: 30vw;
margin-left: 35vw;
}
}
</style>
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