@stdlib/esm/simulate/iter/bartlett-hann-pulse.js

ES module distribution for Stdlib, a standard library for JavaScript and Node.js.

// This file is a part of stdlib. License is Apache-2.0: http://www.apache.org/licenses/LICENSE-2.0
import i from"./../../utils/define-nonenumerable-read-only-property.js";import t from"./../../symbol/iterator.js";import e from"./../../math/base/special/abs.js";import r from"./../../math/base/special/cospi.js";import o from"./../../assert/is-plain-object.js";import n from"./../../assert/has-own-property.js";import a from"./../../assert/is-positive-number.js";import p from"./../../assert/is-integer.js";import s from"./../../assert/is-positive-integer.js";import u from"./../../assert/is-nonnegative-integer.js";var d=o,m=n,f=a.isPrimitive,l=p.isPrimitive,v=s.isPrimitive,b=u.isPrimitive;function g(i,t){return d(t)?m(t,"duration")&&(i.duration=t.duration,!v(t.duration))?new TypeError("invalid option. `duration` option must be a positive integer. Option: `"+t.duration+"`."):m(t,"period")&&(i.period=t.period,!v(t.period))?new TypeError("invalid option. `period` option must be a positive integer. Option: `"+t.period+"`."):m(t,"amplitude")&&(i.amplitude=t.amplitude,!f(t.amplitude))?new TypeError("invalid option. `amplitude` option must be a positive number. Option: `"+t.amplitude+"`."):m(t,"offset")&&(i.offset=t.offset,!l(t.offset))?new TypeError("invalid option. `offset` option must be an integer. Option: `"+t.offset+"`."):m(t,"iter")&&(i.iter=t.iter,!b(t.iter))?new TypeError("invalid option. `iter` option must be a nonnegative integer. Option: `"+t.iter+"`."):null:new TypeError("invalid argument. Options argument must be an object. Value: `"+t+"`.")}var j=i,w=t,c=e,h=r,y=g,E=.62,O=.48,T=.38;function P(i,t,e){return e*(E-O*c(i/(t-=1)-.5)-T*h(2/t*i))}function x(i){var t,e,r,o,n,a;if(t={duration:-1,period:100,amplitude:1,offset:0,iter:1e308},arguments.length&&(o=y(t,i)))throw o;if(-1===t.duration&&(t.duration=t.period),t.duration>t.period)throw new RangeError("invalid option. `duration` option must be less than or equal to the period. Option: `"+t.duration+"`.");if(t.duration<=2)throw new RangeError("invalid option. `duration` option must be greater than 2. Option: `"+t.duration+"`.");return(n=(t.period-t.offset)%t.period)<0&&(n+=t.period),n-=1,a=0,j(e={},"next",p),j(e,"return",s),w&&j(e,w,u),e;function p(){return a+=1,r||a>t.iter?{done:!0}:{value:(n=(n+1)%t.period)<t.duration?P(n,t.duration,t.amplitude):0,done:!1}}function s(i){return r=!0,arguments.length?{value:i,done:!0}:{done:!0}}function u(){return x(t)}}var R=x;export default R;
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