@doegis/core
Version:
DOE GIS API
3 lines (1 loc) • 1.65 kB
JavaScript
import{isSome as e}from"../../../../core/maybe.js";import{Edge as t}from"../EditGeometry.js";class r{constructor(e,t,r=0){this._editGeometry=e,this._vertices=t,this._minNumberOfVertices=r,this.removedVertices=null}apply(){let t="redo";if(null==this.removedVertices){const r=this.removedVertices=[];this._vertices.forEach((t=>{const i=this._removeVertex(t);e(i)&&r.push(i)})),t="apply"}else this.removedVertices.forEach((e=>{this._removeVertex(e.removedVertex)}));this._editGeometry.notifyChanges({operation:t,removedVertices:this._vertices})}undo(){this.removedVertices?.forEach((e=>{this._undoRemoveVertex(e)})),this._editGeometry.notifyChanges({operation:"undo",addedVertices:this._vertices})}accumulate(){return!1}_removeVertex(e){const r=e.component;if(r.vertices.length<=this._minNumberOfVertices)return null;const i={removedVertex:e,createdEdge:null},s=e.leftEdge,d=e.rightEdge;return r.vertices.splice(r.vertices.indexOf(e),1),s&&(r.edges.splice(r.edges.indexOf(s),1),s.leftVertex.rightEdge=null),d&&(r.edges.splice(r.edges.indexOf(d),1),d.rightVertex.leftEdge=null),0===e.index&&d&&this._vertices.length>0&&r.swapVertices(r.vertices.indexOf(d.rightVertex),0),s&&d&&(i.createdEdge=new t(r,s.leftVertex,d.rightVertex),r.edges.push(i.createdEdge)),d&&r.updateVertexIndex(d.rightVertex,d.rightVertex.index-1),i}_undoRemoveVertex(e){const t=e.removedVertex,r=e.removedVertex.component,i=t.leftEdge,s=t.rightEdge;e.createdEdge&&r.edges.splice(r.edges.indexOf(e.createdEdge),1),r.vertices.push(t),i&&(r.edges.push(i),i.leftVertex.rightEdge=i),s&&(r.edges.push(s),s.rightVertex.leftEdge=s),r.updateVertexIndex(t,t.index)}}export{r as RemoveVertices};