Android Open Source - arcgis-runtime-samples-android Geometry Util

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The source code is released under:
Apache License
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Java Source Code

/* Copyright 2013 ESRI
 */*w  w w  .j  av a2s. c o  m*/
 * All rights reserved under the copyright laws of the United States
 * and applicable international laws, treaties, and conventions.
 *
 * You may freely redistribute and use this sample code, with or
 * without modification, provided you include the original copyright
 * notice and use restrictions.
 *
 * See the sample code usage restrictions document for further information.
 */

package com.arcgis.android.samples.geometrysample;

import com.esri.android.map.GraphicsLayer;
import com.esri.core.geometry.Geometry;
import com.esri.core.geometry.MultiPoint;
import com.esri.core.geometry.Point;
import com.esri.core.geometry.Polygon;
import com.esri.core.geometry.Polyline;
import com.esri.core.map.Graphic;
import com.esri.core.symbol.SimpleFillSymbol;
import com.esri.core.symbol.SimpleLineSymbol;
import com.esri.core.symbol.SimpleMarkerSymbol;
import com.esri.core.symbol.SimpleMarkerSymbol.STYLE;

public class GeometryUtil {

  /**
   * highlight graphic objects in random colors
   */
  public static void highlightGeometriesWithColor(Geometry[] results,
      GraphicsLayer graphicsLayer, int color) throws Exception {
    highlightGeometriesWithColor(results, graphicsLayer, color, 16);
  }

  public static void highlightGeometriesWithColor(Geometry[] results,
      GraphicsLayer graphicsLayer, int color, int size) throws Exception {

    if (results == null || results.length == 0)
      return;

    for (int i = 0; i < results.length; i++) {
      Geometry geom = results[i];
      String typeName = geom.getType().name();

      /*
       * Create appropriate symbol, based on geometry type
       */
      if (typeName.equalsIgnoreCase("point")) {

        addPointToGraphicsLayer((Point) geom, graphicsLayer, color,
            size, STYLE.CIRCLE);

      } else if (typeName.equalsIgnoreCase("polyline")) {
        addPolylineToGraphicsLayer((Polyline) geom, color, size / 4,
            graphicsLayer);

      } else if (typeName.equalsIgnoreCase("multipoint")) {
        addMultiPointToGraphicsLayer((MultiPoint) geom, STYLE.CIRCLE,
            size, color, graphicsLayer);
      }

      else if (typeName.equalsIgnoreCase("polygon")) {

        SimpleFillSymbol sfs = new SimpleFillSymbol(color);
        sfs.getOutline().setWidth(size / 4);
        // sfs.setAlpha(50);
        graphicsLayer.addGraphic(new Graphic(geom, sfs));
      }

      else if (typeName.equalsIgnoreCase("envelope")) {

        SimpleFillSymbol sfs = new SimpleFillSymbol(color);
        sfs.getOutline().setWidth(size / 4);
        graphicsLayer.addGraphic(new Graphic(geom, sfs));
      }
    }

  }// end of method

  public static void addPolylineToGraphicsLayer(Polyline pl, int color,
      int size, GraphicsLayer graphicsLayer) throws Exception {

    SimpleLineSymbol sls = new SimpleLineSymbol(color, size,
        com.esri.core.symbol.SimpleLineSymbol.STYLE.SOLID);
    Graphic g = new Graphic(pl, sls);
    graphicsLayer.addGraphic(g);
  }

  public static void addPolygonToGraphicsLayer(Polygon pg, int color,
      int size, int alpha, GraphicsLayer graphicsLayer) throws Exception {

    SimpleFillSymbol sfs = new SimpleFillSymbol(color);
    sfs.setAlpha(alpha);
    Graphic g = new Graphic(pg, sfs);
    graphicsLayer.addGraphic(g);
  }

  /**
   * add points to graphic layer
   */
  public static void addPointToGraphicsLayer(Point point,
      GraphicsLayer graphicsLayer, int color, int size, STYLE style)
      throws Exception {

    SimpleMarkerSymbol sms = new SimpleMarkerSymbol(color, size, style);
    Graphic graphic = new Graphic(point, sms);
    graphicsLayer.addGraphic(graphic);

  }// end of method

  /**
   * add multipoint to a graphic layer
   */
  public static void addMultiPointToGraphicsLayer(MultiPoint mPoint,
      STYLE style, int size, int color, GraphicsLayer graphicsLayer)
      throws Exception {
    int len = mPoint.getPointCount();
    Graphic[] graphics = new Graphic[len];

    for (int i = 0; i < len; i++) {
      Point geom = mPoint.getPoint(i);

      SimpleMarkerSymbol sms = new SimpleMarkerSymbol(color, size, style);
      graphics[i] = new Graphic(geom, sms);
      graphicsLayer.addGraphic(graphics[i]);

    }

  }// end of method

}
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