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feat: Add interactive map SCALE to all maps, near the zoom buttons
fixes: simwrapper#69
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| <template lang="pug"> | ||
| .map-scale(v-show="showScale") | ||
|
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||
| .meters(:style="{width: `${metric.pixels}px`}") | ||
| p {{metric.length}} {{metric.label}} | ||
|
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| .feet(:style="{width: `${miles.pixels}px`}") | ||
| p {{miles.length}} {{miles.label}} | ||
|
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| </template> | ||
|
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||
| <script lang="ts"> | ||
| import { Vue, Component, Watch, Prop } from 'vue-property-decorator' | ||
| import globalStore from '@/store' | ||
| @Component({ components: {}, props: {} }) | ||
| export default class VueComponent extends Vue { | ||
| private globalState = globalStore.state | ||
| private showScale = false | ||
| private mounted() { | ||
| this.zoomChanged() | ||
| } | ||
| @Watch('globalState.viewState.zoom') | ||
| @Watch('globalState.viewState.pitch') | ||
| @Watch('globalState.viewState.latitude') | ||
| private zoomChanged() { | ||
| // hide scale if map is pitched forward | ||
| if (this.globalState.viewState.pitch > 15 || this.globalState.viewState.zoom < 5) { | ||
| this.showScale = false | ||
| return | ||
| } | ||
| this.showScale = true | ||
| // generate scale based on latitude and zoom | ||
| // https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Resolution_and_Scale | ||
| const metersPerPixelAtEquator = 156543.03 | ||
| const latitude = (Math.PI / 180.0) * this.globalState.viewState.latitude | ||
| const zoomLevel = this.globalState.viewState.zoom | ||
| const metersPerPixel = (metersPerPixelAtEquator * Math.cos(latitude)) / 2.0 ** zoomLevel | ||
| const pixelsForOneKM = (window.devicePixelRatio * 1000) / metersPerPixel | ||
| this.calculateBestMeasurements(pixelsForOneKM) | ||
| } | ||
| private breakpointsMetric = [ | ||
| { pixels: 10000, factor: 0.01, length: 10, label: 'm' }, | ||
| { pixels: 5000, factor: 0.02, length: 20, label: 'm' }, | ||
| { pixels: 2000, factor: 0.05, length: 50, label: 'm' }, | ||
| { pixels: 1000, factor: 0.1, length: 100, label: 'm' }, | ||
| { pixels: 500, factor: 0.2, length: 200, label: 'm' }, | ||
| { pixels: 250, factor: 0.5, length: 500, label: 'm' }, | ||
| { pixels: 100, factor: 1, length: 1, label: 'km' }, | ||
| { pixels: 50, factor: 2, length: 2, label: 'km' }, | ||
| { pixels: 20, factor: 5, length: 5, label: 'km' }, | ||
| { pixels: 8, factor: 10, length: 10, label: 'km' }, | ||
| { pixels: 4, factor: 20, length: 20, label: 'km' }, | ||
| { pixels: 2, factor: 50, length: 50, label: 'km' }, | ||
| { pixels: 1, factor: 100, length: 100, label: 'km' }, | ||
| ] | ||
| private breakpointsMiles = [ | ||
| { pixels: 20000, factor: 0.003787878, length: 20, label: 'ft' }, | ||
| { pixels: 10000, factor: 0.00946969696, length: 50, label: 'ft' }, | ||
| { pixels: 5000, factor: 0.0189393939, length: 100, label: 'ft' }, | ||
| { pixels: 2500, factor: 0.04734848, length: 250, label: 'ft' }, | ||
| { pixels: 1000, factor: 0.09469696, length: 500, label: 'ft' }, | ||
| { pixels: 500, factor: 0.18939393, length: 1000, label: 'ft' }, | ||
| { pixels: 300, factor: 0.25, length: 0.25, label: 'mi' }, | ||
| { pixels: 180, factor: 0.5, length: 0.5, label: 'mi' }, | ||
| { pixels: 80, factor: 1, length: 1, label: 'mi' }, | ||
| { pixels: 40, factor: 2, length: 2, label: 'mi' }, | ||
| { pixels: 20, factor: 5, length: 5, label: 'mi' }, | ||
| { pixels: 8, factor: 10, length: 10, label: 'mi' }, | ||
| { pixels: 4, factor: 25, length: 25, label: 'mi' }, | ||
| { pixels: 1.5, factor: 50, length: 50, label: 'mi' }, | ||
| ] | ||
| private metric = { pixels: 100, length: 1000, label: 'm' } | ||
| private miles = { pixels: 100, length: 1000, label: 'mi' } | ||
| private calculateBestMeasurements(pixelsForOneKM: number) { | ||
| // Metric: use either km or meters | ||
| let scaleMetric = { pixels: pixelsForOneKM / 200, length: 5, label: 'm' } | ||
| for (let i = 0; i < this.breakpointsMetric.length; i++) { | ||
| const breakpoint = this.breakpointsMetric[i] | ||
| if (pixelsForOneKM > breakpoint.pixels) break | ||
| scaleMetric = { | ||
| pixels: pixelsForOneKM * breakpoint.factor, | ||
| length: breakpoint.length, | ||
| label: breakpoint.label, | ||
| } | ||
| } | ||
| // U.S.: use either feet or miles | ||
| const pixelsForOneMile = pixelsForOneKM * 1.609344 | ||
| let scaleMiles = { pixels: (10 * pixelsForOneMile) / 5280, length: 10, label: 'ft' } | ||
| for (let i = 0; i < this.breakpointsMiles.length; i++) { | ||
| const breakpoint = this.breakpointsMiles[i] | ||
| if (pixelsForOneMile > breakpoint.pixels) break | ||
| scaleMiles = { | ||
| pixels: pixelsForOneMile * breakpoint.factor, | ||
| length: breakpoint.length, | ||
| label: breakpoint.label, | ||
| } | ||
| } | ||
| this.metric = scaleMetric | ||
| this.miles = scaleMiles | ||
| } | ||
| } | ||
| </script> | ||
|
|
||
| <style scoped lang="scss"> | ||
| @import '@/styles.scss'; | ||
| .map-scale { | ||
| display: flex; | ||
| flex-direction: column; | ||
| overflow-x: hidden; | ||
| pointer-events: none; | ||
| } | ||
| p { | ||
| margin: 0px 0px; | ||
| padding: 1px 4px; | ||
| font-size: 0.8rem; | ||
| color: var(--textBold); | ||
| opacity: 0.7; | ||
| text-align: right; | ||
| } | ||
| .meters { | ||
| margin-left: auto; | ||
| background-color: var(--scaleBg); | ||
| border-left: var(--scaleBorder); | ||
| border-right: var(--scaleBorder); | ||
| border-bottom: var(--scaleBorder); | ||
| } | ||
| .feet { | ||
| margin-left: auto; | ||
| margin-top: -1px; | ||
| background-color: var(--scaleBg); | ||
| border-left: var(--scaleBorder); | ||
| border-right: var(--scaleBorder); | ||
| border-top: var(--scaleBorder); | ||
| } | ||
| @media only screen and (max-width: 640px) { | ||
| } | ||
| </style> |
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