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

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

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.19/LICENSE.txt */
import e from"../../../core/Error.js";import t from"../../../core/Logger.js";import{GeometryCursor as s}from"../../../geometry/GeometryCursor.js";import o from"../../../geometry/SpatialReference.js";import{isPolygon as i,isPolyline as l}from"../../../geometry/support/jsonTypeUtils.js";import r from"../../../geometry/support/PolylineBuilder.js";import{Point as n}from"../../../geometry/support/TileClipper.js";import{PathEffectCursor as h}from"../CIMCursor.js";import{lazyGeneralizeOperator as a,lazyLengthOperator as c,lazySimplifyOperator as _}from"../CIMEffects.js";const p=()=>t.getLogger("esri.symbols.cim.effects.EffectTaperedPolygon");class y{static{this.instance=null}static local(){return null===y.instance&&(y.instance=new y),y.instance}execute(e,t,s){return new f(e,t,s)}}class f extends h{constructor(e,t,s){super(e,!1,!0),this._slopeS=0,this._slopeC=1,this._lastTangent1=new n(NaN,NaN),this._lastWidth=0,this._geomUnitsPerPoint=s,this._halfFromWidth=Math.abs(void 0!==t.fromWidth?t.fromWidth:0)*s*.5,this._halfToWidth=Math.abs(void 0!==t.toWidth?t.toWidth:1)*s*.5,this._originalLength=(void 0!==t.length?t.length:0)*s,this._length=0}processPath(t){if(t.totalSize<=0)return null;if(this._halfFromWidth<=0&&this._halfToWidth<=0){const e=s.createEmptyOptimizedCIM("esriGeometryPolygon",!1,!1,t.yFactor);for(t.seekPathEnd();t.prevPoint();)e.pushXY(t.x,t.y);for(t.seekPathStart();t.nextPoint();)e.pushXY(t.x,t.y);return e}const n=t.getCurrentPath().asJSON(),h=a.module.execute(n,.25*this._geomUnitsPerPoint,{removeDegenerateParts:!0}),y=null==h?null:i(h)?h.rings:l(h)?h.paths:null;if(!y)return p().error(new e("mapview-bad-resource","Unable to process geometry")),null;const f=c.module.execute(h);if((0===this._originalLength||this._originalLength>f)&&f>0){this._length=f;const e=(this._halfToWidth-this._halfFromWidth)/this._length;if(Math.abs(e)<1){const t=e*e;this._slopeC=Math.sqrt(1/(1+t)),this._slopeS=Math.sqrt(t/(1+t)),e<0&&(this._slopeS=-this._slopeS)}else this._slopeC=this._slopeS=.7071}else this._length=this._originalLength,this._slopeC=1,this._slopeS=0;const m=[];for(const e of y){const t=new r,s=new r;let o=0;this._setFromOffset(e.slice(0,2),t,s);for(let r=0,n=3;n<=e.length;++r,++n)o=this._setOffset(e.slice(r,n),o,t,s);this._setToOffset(e.slice(-2),o,t,s);const[i]=t.getGeometry(),[l]=s.getGeometry();m.push([...i,...l.reverse()])}const x={rings:m,spatialReference:{wkid:o.WebMercator.wkid}},d=_.module.execute(x);return s.fromJSONCIM(d)}_setFromOffset([[e,t],[s,o]],i,l){const r=this._halfFromWidth,h=new n(s-e,o-t).normalize().scale(r);i.beginPath([e-h.y,t+h.x]),l.beginPath([e+h.y,t-h.x])}_setToOffset([[e,t],[s,o]],i,l,r){let h;h=(i+=Math.sqrt((s-e)**2+(o-t)**2))>=this._length?this._halfToWidth:this._halfFromWidth+(this._halfToWidth-this._halfFromWidth)*i/this._length;const a=new n(s-e,o-t).normalize().scale(h);l.lineTo([s-a.y,o+a.x]),r.lineTo([s+a.y,o-a.x])}_setOffset([[t,s],[o,i],[l,r]],h,a,c){const _=Math.sqrt((o-t)**2+(i-s)**2);let y;y=h+_>=this._length?this._halfToWidth:this._halfFromWidth+(this._halfToWidth-this._halfFromWidth)*(h+_)/this._length,h+=_;const f=new n(o,i),m=new n(o-t,i-s).normalize(),x=new n(l-o,r-i).normalize(),d=n.sub(x,m),g=a.getPointCount(),u=c.getPointCount();m.leftPerpendicular(),x.leftPerpendicular();const T=m.x*x.x+m.y*x.y;if(T>.99){const e=n.add(m,x).scale(y/2),t=e.clone().rotate(this._slopeC,this._slopeS);a.lineTo([f.x+t.x,f.y+t.y]);const s=e.rotateReverse(this._slopeC,this._slopeS);c.lineTo([f.x-s.x,f.y-s.y])}else{const o=m.x*x.y-m.y*x.x;if(d.scale(1/o),o<0){d.scale(-y).rotateReverse(this._slopeC,this._slopeS);const t=c.getXY(u-1);t||p().error(new e("mapview-bad-resource","Unable to process geometry, index out of scope"));const s=n.add(f,d).sub(n.fromArray(t));if(m.x*s.y-m.y*s.x>0){const e=m.clone().scale(-y).rotateReverse(this._slopeC,this._slopeS),t=x.clone().scale(-y).rotateReverse(this._slopeC,this._slopeS);c.lineTo([f.x+e.x,f.y+e.y]),c.lineTo([f.x,f.y]),c.lineTo([f.x+t.x,f.y+t.y])}else c.lineTo([f.x+d.x,f.y+d.y])}else{d.scale(y).rotate(this._slopeC,this._slopeS);const t=a.getXY(g-1);t||p().error(new e("mapview-bad-resource","Unable to process geometry, index out of scope"));const s=n.add(f,d).sub(n.fromArray(t));if(m.x*s.y-m.y*s.x>0){const e=m.clone().scale(y).rotate(this._slopeC,this._slopeS),t=x.clone().scale(y).rotate(this._slopeC,this._slopeS);a.lineTo([f.x+e.x,f.y+e.y]),a.lineTo([f.x,f.y]),a.lineTo([f.x+t.x,f.y+t.y])}else a.lineTo([f.x+d.x,f.y+d.y])}const i=Math.acos(T);let l=1;if(y>.25){const e=2*Math.acos(1-.25/y);e<i&&(l=Math.round(i/e))}const r=Math.cos(i/l),h=Math.sin(i/l),_=m.clone();if(o<0){_.rotate(this._slopeC,this._slopeS);const o=a.getXY(g-1);o||p().error(new e("mapview-bad-resource","Unable to process geometry, index out of scope"));const i=n.add(f,_.clone().scale(this._lastWidth)),l=n.sub(i,n.fromArray(o)),r=m.x*l.y-m.y*l.x;if(!isNaN(this._lastTangent1.x)&&!isNaN(this._lastTangent1.y)&&r>0){const e=new n(t,s),o=this._lastTangent1.clone().scale(this._lastWidth);o.rotate(this._slopeC,this._slopeS);const i=m.clone().scale(this._lastWidth);i.rotate(this._slopeC,this._slopeS),a.lineTo([e.x+o.x,e.y+o.y]),a.lineTo([e.x,e.y]),a.lineTo([e.x+i.x,e.y+i.y])}}else{_.scale(-1).rotateReverse(this._slopeC,this._slopeS);const o=c.getXY(u-1);o||p().error(new e("mapview-bad-resource","Unable to process geometry, index out of scope"));const i=n.add(f,_.clone().scale(this._lastWidth)),l=n.sub(i,n.fromArray(o)),r=m.x*l.y-m.y*l.x;if(!isNaN(this._lastTangent1.x)&&!isNaN(this._lastTangent1.y)&&r>0){const e=new n(t,s),o=this._lastTangent1.clone().scale(-this._lastWidth);o.rotateReverse(this._slopeC,this._slopeS);const i=m.clone().scale(-this._lastWidth);i.rotateReverse(this._slopeC,this._slopeS),c.lineTo([e.x+o.x,e.y+o.y]),c.lineTo([e.x,e.y]),c.lineTo([e.x+i.x,e.y+i.y])}}_.scale(y);for(let e=0;e<=l;e++)o<0?(a.lineTo([f.x+_.x,f.y+_.y]),_.rotateReverse(r,h)):(c.lineTo([f.x+_.x,f.y+_.y]),_.rotate(r,h))}return this._lastTangent1.setCoords(m.x,m.y),this._lastWidth=y,h}}export{y as EffectTaperedPolygon};