Function dissolve

  • dissolve(feature, options?): FeatureCollection<Polygon, {
        [name: string]: any;
    }>

  • Polygon FeatureCollection을 입력받아 같은 propertyName을 가진 Feature끼리 묶어주는 함수입니다.

    Parameters

    • feature: FeatureCollection<Polygon, {
          [name: string]: any;
      }>

      분해할 Polygon FeatureCollection 입니다.

    • Optional options: {
          propertyName?: string;
      }

      필터링 기준이 되는 propertyName 입니다.

      • Optional propertyName?: string

    Returns FeatureCollection<Polygon, {
        [name: string]: any;
    }>

    분해된 Polygon Feature들을 포함하는 Polygon FeatureCollection이 반환됩니다.

    Example

    const polygon1: ktGms.geometry.Polygon = new ktGms.geometry.Polygon(
       [
         [
           [126.9795470621487, 37.57520655422071],
           [126.9750838663474, 37.57491744562108],
           [126.9752769853963, 37.57270657804507],
           [126.9790964510346, 37.57199228372285],
           [126.9795470621487, 37.57520655422071],
         ],
       ],
       { flag: "true" }
     );
     const polygon2: ktGms.geometry.Polygon = new ktGms.geometry.Polygon(
       [
         [
           [126.97700432235615, 37.57605019879898],
           [126.97214608947786, 37.575858743873866],
           [126.97195820201864, 37.57413562740092],
           [126.97662854743771, 37.57217845909456],
           [126.98057418408416, 37.57305068175859],
           [126.97700432235615, 37.57605019879898],
         ],
       ],
       { flag: "true" }
     );
     const polygon3: ktGms.geometry.Polygon = new ktGms.geometry.Polygon(
       [
         [
           [126.98722890876707, 37.575393623892694],
           [126.98317340873803, 37.57510451601934],
           [126.98325923942645, 37.57231541771728],
           [126.98832325004645, 37.57219636851373],
           [126.98722890876707, 37.575393623892694],
         ],
       ],
       { flag: "false" }
     );
    const features = analysis.helper.featureCollection([polygon1, polygon2, polygon3]);
    const dissolved = analysis.transformation.dissolve(features, {propertyName: 'flag'});
    // features의 길이가 2인 FeatureCollection 반환 (polygon1과 polygon2가 병합 / polygon3 따로 존재)

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