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feat(lodCalculator): 抽取计算工具类，增加测试，调整样式
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| import { expect, it } from 'vitest' | ||
| import { getPPI, getResolution, getScaleDomination, ppiToPX, pxToPPI } from './scaleCalculator' | ||
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| const scaleDomination = 5.90995197141668e8 | ||
| const resolution = 1.406250026231578 | ||
| const resolutionMeter = 156367.47924 | ||
| const ppi = 96 | ||
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| it('scaleDomination (degree)', () => { | ||
| expect(Math.abs(getScaleDomination(resolution, ppi, 'degree') - scaleDomination) / scaleDomination).toBeLessThan(1e-5) | ||
| }) | ||
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| it('scaleDomination (meter)', () => { | ||
| expect(Math.abs(getScaleDomination(resolutionMeter, ppi, 'meter') - scaleDomination) / scaleDomination).toBeLessThan(1e-5) | ||
| }) | ||
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| it('resolution (degree)', () => { | ||
| expect(Math.abs(getResolution(scaleDomination, ppi, 'degree') - resolution) / resolution).toBeLessThan(1e-5) | ||
| }) | ||
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| it('resolution (meter)', () => { | ||
| expect(Math.abs(getResolution(scaleDomination, ppi, 'meter') - resolutionMeter) / resolutionMeter).toBeLessThan(1e-5) | ||
| }) | ||
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| it('ppi (degree)', () => { | ||
| expect(getPPI(scaleDomination, resolution, 'degree')).toBeCloseTo(ppi, 3) | ||
| }) | ||
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| it('ppi (meter)', () => { | ||
| expect(getPPI(scaleDomination, resolutionMeter, 'meter')).toBeCloseTo(ppi, 3) | ||
| }) | ||
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| it('ppi to pixelSize', () => { | ||
| expect(ppiToPX(90.713)).toBeCloseTo(0.00028, 6) | ||
| }) | ||
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| it('pixelSize to ppi', () => { | ||
| expect(pxToPPI(0.00028)).toBeCloseTo(90.714, 3) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| const INCH = 0.0254 | ||
| const DEGREE = 111194.872221777 | ||
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| export function getScaleDomination(resolution: number, ppi: number, unit: 'degree' | 'meter' = 'meter') { | ||
| const tmp = resolution / INCH * ppi | ||
| if (unit === 'degree') { | ||
| return tmp * DEGREE | ||
| } | ||
| else { | ||
| return tmp | ||
| } | ||
| } | ||
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| export function getResolution(scaleDomination: number, ppi: number, unit: 'degree' | 'meter') { | ||
| const tmp = scaleDomination / ppi * INCH | ||
| if (unit === 'degree') { | ||
| return tmp / DEGREE | ||
| } | ||
| else { | ||
| return tmp | ||
| } | ||
| } | ||
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| export function getPPI(scaleDomination: number, resolution: number, unit: 'degree' | 'meter') { | ||
| const tmp = scaleDomination / resolution * INCH | ||
| if (unit === 'degree') { | ||
| return tmp / DEGREE | ||
| } | ||
| else { | ||
| return tmp | ||
| } | ||
| } | ||
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| export function pxToPPI(px: number) { | ||
| return INCH / px | ||
| } | ||
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| export function ppiToPX(ppi: number) { | ||
| return INCH / ppi | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -14,6 +14,7 @@ | |
| "types": [ | ||
| "vitest", | ||
| "vite/client", | ||
| "vitest/importMeta", | ||
| "vite-plugin-pwa/vue" | ||
| ], | ||
| "allowJs": true, | ||
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