andriod arcgis createPolygons创建带空的面

Posted 2020-10-10 gisoracle

 private void createPolygons() {

    // create input polygon 1
    PointCollection pointsPoly = new PointCollection(SpatialReferences.getWebMercator());
    pointsPoly.add(new Point(-13160, 6710100));
    pointsPoly.add(new Point(-13300, 6710500));
    pointsPoly.add(new Point(-13760, 6710730));
    pointsPoly.add(new Point(-14660, 6710000));
    pointsPoly.add(new Point(-13960, 6709400));
    inputPolygon1 = new Polygon(pointsPoly);

    // create and add a blue graphic to show input polygon 1
    SimpleFillSymbol fillSymbol = new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, 0x990000CC, lineSymbol);
    inputGeometryOverlay.getGraphics().add(new Graphic(inputPolygon1, fillSymbol));

    // create input polygon 2 with a green (0xFF009900) symbol
    // outer ring
    PointCollection outerRingSegmentCollection = new PointCollection(SpatialReferences.getWebMercator());
    outerRingSegmentCollection.add(new Point(-13060, 6711030));
    outerRingSegmentCollection.add(new Point(-12160, 6710730));
    outerRingSegmentCollection.add(new Point(-13160, 6709700));
    outerRingSegmentCollection.add(new Point(-14560, 6710730));
    outerRingSegmentCollection.add(new Point(-13060, 6711030));
    Part outerRing = new Part(outerRingSegmentCollection);

    // inner ring
    PointCollection innerRingSegmentCollection = new PointCollection(SpatialReferences.getWebMercator());
    innerRingSegmentCollection.add(new Point(-13060, 6710910));
    innerRingSegmentCollection.add(new Point(-12450, 6710660));
    innerRingSegmentCollection.add(new Point(-13160, 6709900));
    innerRingSegmentCollection.add(new Point(-14160, 6710630));
    innerRingSegmentCollection.add(new Point(-13060, 6710910));
    Part innerRing = new Part(innerRingSegmentCollection);

    // add both parts (rings) to a part collection and create a geometry from it
    PartCollection polygonParts = new PartCollection(outerRing);
    polygonParts.add(innerRing);
    inputPolygon2 = new Polygon(polygonParts);

    // create and add a green graphic to show input polygon 2
    fillSymbol = new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, 0x99009900, lineSymbol);
    inputGeometryOverlay.getGraphics().add(new Graphic(inputPolygon2, fillSymbol));
  }