alexsanqp
/ get-polygon-centroid.ts
Last active
April 24, 2019 17:33
Polygon centroid - typescript or javascript
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| /** | |
| * https://en.wikipedia.org/wiki/Centroid#Of_a_polygon | |
| */ | |
| public getPolygonCentroid(vertices: number[][]): { lat: number, lon: number } { | |
| const centroid: { lat: number, lon: number } = { lat: 0, lon: 0 }; | |
| const vertexCount: number = vertices.length; | |
| let area: number = 0; | |
| let x0: number = 0; // Current vertex X | |
| let y0: number = 0; // Current vertex Y |
alexsanqp
/ dimension.class.ts
Last active
April 24, 2019 17:28
The Dimension class encapsulates the width and height of a component (in integer precision) in a single object.
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| /** | |
| * The Dimension class encapsulates the width and height | |
| * of a component (in integer precision) in a single object. | |
| */ | |
| export class Dimension { | |
| /** | |
| * The width dimension; negative values can be used. | |
| * @default 0 | |
| */ | |
| protected width: number; |
alexsanqp
/ point.class.ts
Last active
April 24, 2019 17:28
A point representing a location in (x,y) coordinate space, specified in integer precision.
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| /** | |
| * A point representing a location in (x,y) coordinate space, specified in integer precision. | |
| */ | |
| export class Point { | |
| /** | |
| * The X coordinate of this Point. | |
| * @default 0 | |
| */ | |
| protected x: number; |
alexsanqp
/ run-outside-event-manager.service.ts
Last active
April 25, 2019 12:52
Triggers an event listener outside the angular zone.
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| import { Inject, Injectable, NgZone } from '@angular/core'; | |
| import { EVENT_MANAGER_PLUGINS, EventManager } from '@angular/platform-browser'; | |
| export const RUN_OUTSIDE: string = '.run-outside'; | |
| /** | |
| * @example | |
| * | |
| * @NgModule({ | |
| * // ... |
alexsanqp
/ memorize.decorator.ts
Created
April 17, 2020 00:10
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| export const memorizeFn = <T extends () => void>(fn: T, size = 5, duration = 0): any => { | |
| const cache: Map<string, any> = new Map<string, any>(); | |
| if (duration) { | |
| setInterval(() => cache.clear(), duration); | |
| } | |
| return (...args: any[]): any => { | |
| const key: string = JSON.stringify(args); | |
| if (!cache.has(key)) { | |
| cache.set(key, (fn as any)(...args)); |
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| [{"args":{"name":"swapper"},"cat":"__metadata","name":"thread_name","ph":"M","pid":0,"tid":0,"ts":0}, | |
| {"args":{"name":"Compositor"},"cat":"__metadata","name":"thread_name","ph":"M","pid":15676,"tid":13992,"ts":0}, | |
| {"args":{"name":"CrRendererMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":15676,"tid":364,"ts":0}, | |
| {"args":{"name":"CrBrowserMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":15936,"ts":0}, | |
| {"args":{"name":"Chrome_IOThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":10384,"ts":0}, | |
| {"args":{"name":"VizCompositorThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":5576,"ts":0}, | |
| {"args":{"name":"GpuVSyncThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":12292,"ts":0}, | |
| {"args":{"name":"CrGpuMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":14628,"ts":0}, | |
| {"args":{"name":"Chrome_ChildIOThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":15676,"tid":32852,"ts" |
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| [{"args":{"name":"swapper"},"cat":"__metadata","name":"thread_name","ph":"M","pid":0,"tid":0,"ts":0}, | |
| {"args":{"name":"Compositor"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22096,"tid":22068,"ts":0}, | |
| {"args":{"name":"ThreadPoolServiceThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":6276,"ts":0}, | |
| {"args":{"name":"CrRendererMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22096,"tid":10276,"ts":0}, | |
| {"args":{"name":"CrBrowserMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":15936,"ts":0}, | |
| {"args":{"name":"Chrome_IOThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":10384,"ts":0}, | |
| {"args":{"name":"VizCompositorThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":5576,"ts":0}, | |
| {"args":{"name":"GpuVSyncThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":12292,"ts":0}, | |
| {"args":{"name":"CrGpuMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":14628, |
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| [{"args":{"name":"swapper"},"cat":"__metadata","name":"thread_name","ph":"M","pid":0,"tid":0,"ts":0}, | |
| {"args":{"name":"Compositor"},"cat":"__metadata","name":"thread_name","ph":"M","pid":15676,"tid":13992,"ts":0}, | |
| {"args":{"name":"CrRendererMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":15676,"tid":364,"ts":0}, | |
| {"args":{"name":"CrBrowserMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":15936,"ts":0}, | |
| {"args":{"name":"Chrome_IOThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":10384,"ts":0}, | |
| {"args":{"name":"VizCompositorThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":5576,"ts":0}, | |
| {"args":{"name":"GpuVSyncThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":12292,"ts":0}, | |
| {"args":{"name":"CrGpuMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":14628,"ts":0}, | |
| {"args":{"name":"Chrome_ChildIOThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":15676,"tid":32852,"ts" |
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| [{"args":{"name":"swapper"},"cat":"__metadata","name":"thread_name","ph":"M","pid":0,"tid":0,"ts":0}, | |
| {"args":{"name":"Compositor"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22096,"tid":22068,"ts":0}, | |
| {"args":{"name":"ThreadPoolServiceThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":6276,"ts":0}, | |
| {"args":{"name":"CrRendererMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22096,"tid":10276,"ts":0}, | |
| {"args":{"name":"CrBrowserMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":15936,"ts":0}, | |
| {"args":{"name":"Chrome_IOThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":22488,"tid":10384,"ts":0}, | |
| {"args":{"name":"VizCompositorThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":5576,"ts":0}, | |
| {"args":{"name":"GpuVSyncThread"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":12292,"ts":0}, | |
| {"args":{"name":"CrGpuMain"},"cat":"__metadata","name":"thread_name","ph":"M","pid":33572,"tid":14628, |