@arcgis/core/symbols/cim/effects/EffectDashes.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import{GeometryCursor as t}from"../../../geometry/GeometryCursor.js";import{collectPath as e}from"../../../geometry/geometryCursorCollectUtils.js";import{PathEffectCursor as s}from"../CIMCursor.js";import{GeometryWalker as i,DashPattern as r}from"../GeometryWalker.js";import{normalizeDashEffectTemplate as a}from"../utils.js";class n{static{this.instance=null}static local(){return null===n.instance&&(n.instance=new n),n.instance}execute(t,e,s){return new h(t,e,s)}}class h extends s{constructor(t,e,s){super(t,!0,!0),this._firstCurve=null,this._walker=new i,this._walker.updateTolerance(s),this._endings=e.lineDashEnding??"NoConstraint",this._customDashPos=-(e.offsetAlongLine??0)*s,this._offsetAtEnd=(e.customEndingOffset??0)*s;let n=a(e).dashTemplate;null==n&&(n=[]),n.length%2&&(n=[...n,...n]);let h=0;for(;h<n.length&&0===n[h];)h++;let l=0;const u=[];for(let i=h;i<n.length;i++)0===n[i]?l++:0===l?u.push(n[i]):1&l?(u[u.length-1]+=n[i],l=0):(u.push(n[i]),l=0);n=u,n.length<=1?n=0===n.length||h%2==0?[]:[-1]:n.length%2==1?h%2==1?n.unshift(0):n.push(0):h%2==1&&(n.unshift(0),n.push(0)),this._pattern=new r,this._pattern.init(n,!1),this._pattern.scale(s)}processPath(s){if(this._pattern.size()%2==1)return null;if(0===this._pattern.length()){this.iteratePath=!1;const i=e(s);return t.fromJSONCIM({paths:[i]})}if(!this.iteratePath){let i=!0;switch(this._endings){case"HalfPattern":case"HalfGap":default:this._pattern.extPtGap=0;break;case"FullPattern":this.isClosed||(this._pattern.extPtGap=.5*this._pattern.firstValue());break;case"FullGap":this.isClosed||(this._pattern.extPtGap=.5*this._pattern.lastValue());break;case"NoConstraint":this.isClosed||(i=!1);break;case"Custom":this.isClosed||(this._pattern.extPtGap=.5*this._offsetAtEnd)}const r=s.pathLength();if(this._pattern.isEmpty()||r<.1*this._pattern.length()){const i=e(s);return t.fromJSONCIM({paths:[i]})}if(!this._walker.init(s,this._pattern,i)){const i=e(s);return t.fromJSONCIM({paths:[i]})}}let i;if(this.iteratePath)i=this._pattern.nextValue();else{let t;switch(this._endings){case"HalfPattern":default:t=.5*this._pattern.firstValue();break;case"HalfGap":t=.5*-this._pattern.lastValue();break;case"FullGap":t=-this._pattern.lastValue();break;case"FullPattern":t=0;break;case"NoConstraint":case"Custom":t=-this._customDashPos}let e=t/this._pattern.length();e-=Math.floor(e),t=e*this._pattern.length(),this._pattern.reset(),i=this._pattern.nextValue();let s=!1;for(;t>=i;)t-=i,i=this._pattern.nextValue(),s=!s;i-=t,s?(this._walker.nextPosition(i),i=this._pattern.nextValue()):this.isClosed&&(this._firstCurve=this._walker.nextCurve(i),i=this._pattern.nextValue(),this._walker.nextPosition(i),i=this._pattern.nextValue())}0===i&&(i=this._pattern.nextValue(),this._walker.nextPosition(i),i=this._pattern.nextValue());let r=this._walker.nextCurve(i);if(r)if(this._walker.isPathEnd()){if(this.iteratePath=!1,this._firstCurve){for(this._firstCurve.nextPath();this._firstCurve.nextPoint();)r.pushXY(this._firstCurve.x,this._firstCurve.y);this._firstCurve=null}}else i=this._pattern.nextValue(),!this._walker.nextPosition(i)||this._walker.isPathEnd()?(this.iteratePath=!1,this._firstCurve&&(r.pushCursor(this._firstCurve),this._firstCurve=null)):this.iteratePath=!0;else this.iteratePath=!1,r=this._firstCurve,this._firstCurve=null;return r?.reset(),r}}export{n as EffectDashes};