@juun-roh/cesium-utils/dist/highlight/index.js

Solve common Cesium.js challenges: combine multiple terrain sources, tag and filter entity collections, and add visual highlights.

import{Cesium3DTileFeature as P,Color as R,defined as H,Entity as p,GroundPrimitive as E}from"cesium";import{Cesium3DTileFeature as T,Color as f,ConstantProperty as u,defined as G,PostProcessStageLibrary as m}from"cesium";var s=class{_color=f.RED;_silhouette;_composite;_stages;_entity;_currentObject;_currentOptions;constructor(t){this._stages=t.scene.postProcessStages,this._silhouette=m.createEdgeDetectionStage(),this._silhouette.uniforms.color=this._color,this._silhouette.uniforms.length=.01,this._silhouette.selected=[],this._composite=m.createSilhouetteStage([this._silhouette]),this._stages.add(this._composite)}get color(){return this._color}set color(t){this._color=t}get currentObject(){return this._currentObject}show(t,i){if(G(t)&&!(this._currentObject===t&&this._optionsEqual(this._currentOptions,i))){this._clearHighlights();try{if(t instanceof T)this._silhouette.uniforms.color=i?.color||this._color,this._silhouette.selected.push(t);else{if(!t.model)return;this._entity=t,t.model.silhouetteSize=new u(i?.width||2),t.model.silhouetteColor=new u(i?.color||this._color)}this._currentObject=t,this._currentOptions=i?{...i}:void 0}catch(e){console.error("Failed to highlight object:",e),this._currentObject=void 0,this._currentOptions=void 0}}}hide(){this._clearHighlights(),this._currentObject=void 0,this._currentOptions=void 0}destroy(){this.hide(),this._composite&&this._stages.remove(this._composite),this._currentObject=void 0,this._currentOptions=void 0}_optionsEqual(t,i){return!t&&!i?!0:!t||!i?!1:t.outline===i.outline&&t.width===i.width&&f.equals(t.color||this._color,i.color||this._color)}_clearHighlights(){this._silhouette.selected.length>0&&(this._silhouette.selected=[]),this._entity?.model&&(this._entity.model.silhouetteColor=new u(f.TRANSPARENT),this._entity.model.silhouetteSize=new u(0),this._entity=void 0)}};import{Cartesian3 as o,ClassificationType as v,Color as O,defined as S,Entity as g,GroundPrimitive as w,HeightReference as _,PolygonGraphics as C,PolygonHierarchy as b,PolylineGraphics as a,RectangleGraphics as D}from"cesium";var l=class{_color=O.RED;_entity;_entities;_currentObject;_currentOptions;constructor(t){this._entities=t.entities,this._entity=this._entities.add(new g({id:`highlight-entity-${Math.random().toString(36).substring(2)}`,show:!1}))}get color(){return this._color}set color(t){this._color=t}get entity(){return this._entity}get currentObject(){return this._currentObject}show(t,i){if(!(!S(t)||!this._entity)){if(this._currentObject===t&&this._optionsEqual(this._currentOptions,i))return this._entity;this._clearGeometries();try{if(t instanceof g&&(t.polygon||t.polyline||t.rectangle))this._update(t,i);else if(t instanceof w)this._update(t,i);else{this._currentObject=void 0,this._currentOptions=void 0;return}return this._currentObject=t,this._currentOptions=i?{...i}:void 0,this._entity.show=!0,this._entity}catch(e){console.error("Failed to highlight object:",e),this._currentObject=void 0,this._currentOptions=void 0;return}}}hide(){this._entity&&(this._entity.show=!1),this._currentObject=void 0,this._currentOptions=void 0}destroy(){this._entities.contains(this._entity)&&this._entities.remove(this._entity),this._currentObject=void 0,this._currentOptions=void 0}_optionsEqual(t,i){return!t&&!i?!0:!t||!i?!1:t.outline===i.outline&&t.width===i.width&&O.equals(t.color||this._color,i.color||this._color)}_clearGeometries(){this._entity.polygon=void 0,this._entity.polyline=void 0,this._entity.rectangle=void 0}_update(t,i={color:this._color,outline:!1,width:2}){if(t instanceof g){if(t.polygon)if(i.outline){let e=t.polygon.hierarchy?.getValue();if(e&&e.positions){let r;e.positions.length>0&&!o.equals(e.positions[0],e.positions[e.positions.length-1])?r=[...e.positions,e.positions[0]]:r=e.positions,this._entity.polyline=new a({positions:r,material:i.color,width:i.width||2,clampToGround:!0})}}else{let e=t.polygon.hierarchy?.getValue();e&&(this._entity.polygon=new C({hierarchy:e,material:i.color,heightReference:_.CLAMP_TO_GROUND,classificationType:t.polygon.classificationType?.getValue()||v.BOTH}))}else if(t.polyline){let e=t.polyline.positions?.getValue();if(e){let r=t.polyline.width?.getValue();this._entity.polyline=new a({positions:e,material:i.color,width:r+(i.width||2),clampToGround:!0})}}else if(t.rectangle)if(i.outline){let e=t.rectangle.coordinates?.getValue();if(e){let r=[o.fromRadians(e.west,e.north),o.fromRadians(e.east,e.north),o.fromRadians(e.east,e.south),o.fromRadians(e.west,e.south),o.fromRadians(e.west,e.north)];this._entity.polyline=new a({positions:r,material:i.color,width:i.width||2,clampToGround:!0})}}else{let e=t.rectangle.coordinates?.getValue();e&&(this._entity.rectangle=new D({coordinates:e,material:i.color,heightReference:_.CLAMP_TO_GROUND}))}}else if(t instanceof w){let e=t.geometryInstances,r=Array.isArray(e)?e[0]:e;if(!r.geometry.attributes.position)return;let c=r.geometry.attributes.position.values,d=[];for(let h=0;h<c.length;h+=3)d.push(new o(c[h],c[h+1],c[h+2]));i.outline?this._entity.polyline=new a({positions:d,material:i.color,width:i.width||2,clampToGround:!0}):this._entity.polygon=new C({hierarchy:new b(d),material:i.color,heightReference:_.CLAMP_TO_GROUND,classificationType:v.BOTH})}}};var y=class n{static instances=new WeakMap;_surface;_silhouette;_color=R.RED;constructor(t){this._surface=new l(t),this._silhouette=new s(t),this._surface.color=this._color,this._silhouette.color=this._color}get color(){return this._color}set color(t){this._color=t,this._surface.color=t,this._silhouette.color=t}static getInstance(t){let i=t.container;return n.instances.has(i)||n.instances.set(i,new n(t)),n.instances.get(i)}static releaseInstance(t){let i=t.container,e=n.instances.get(i);e&&(e.hide(),e._surface&&e._surface.destroy(),e._silhouette&&e._silhouette.destroy(),n.instances.delete(i))}show(t,i={color:this._color}){let e=this._getObject(t);if(H(e))return e instanceof P?this._silhouette.show(e,i):e instanceof p&&e.model?this._silhouette.show(e,i):this._surface.show(e,i)}_getObject(t){if(H(t)){if(t instanceof p||t instanceof P||t instanceof E)return t;if(t.id instanceof p)return t.id;if(t.primitive instanceof E)return t.primitive}}hide(){this._surface.hide(),this._silhouette.hide()}},V=y;export{V as Highlight,s as SilhouetteHighlight,l as SurfaceHighlight};