Java Code Examples for com.esri.core.geometry.GeometryEngine#buffer()

The following examples show how to use com.esri.core.geometry.GeometryEngine#buffer() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: BufferProcessor.java    From defense-solutions-proofs-of-concept with Apache License 2.0 6 votes vote down vote up 
private com.esri.ges.spatial.Geometry constructBuffer(double x, double y, double radius, String units, int wkidin, int wkidbuffer, int wkidout) throws GeometryException
{
	Point center = new Point();
	center.setX(x);
	center.setY(y);
	SpatialReference srIn = SpatialReference.create(wkidin);
	SpatialReference srBuffer = SpatialReference.create(wkidbuffer);
	SpatialReference srOut = SpatialReference.create(wkidout);
	UnitConverter uc = new UnitConverter();
	String c_name = uc.findConnonicalName(units);
	int unitout = uc.findWkid(c_name);
	Unit  u = new LinearUnit(unitout);
	Point centerProj = (Point) GeometryEngine.project(center, srIn, srBuffer);
	Geometry buffer = GeometryEngine.buffer(centerProj, srBuffer, radius, u);
	Geometry bufferout = GeometryEngine.project(buffer, srBuffer, srOut);
	String json = GeometryEngine.geometryToJson(srOut, bufferout);
	return spatial.fromJson(json);
	
}
Example 2
Source File: BufferProcessor.java    From defense-solutions-proofs-of-concept with Apache License 2.0 6 votes vote down vote up 
private Geometry constructBuffer(double x, double y,
		double radius, String units, int wkidin, int wkidbuffer, int wkidout)
		 {
	Point center = new Point();
	center.setX(x);
	center.setY(y);
	SpatialReference srIn = SpatialReference.create(wkidin);
	SpatialReference srBuffer = SpatialReference.create(wkidbuffer);
	SpatialReference srOut = SpatialReference.create(wkidout);
	UnitConverter uc = new UnitConverter();
	String c_name = uc.findConnonicalName(units);
	int unitout = uc.findWkid(c_name);
	Unit u = LinearUnit.create(unitout);
	Point centerProj = (Point) GeometryEngine.project(center, srIn,
			srBuffer);
	Geometry buffer = GeometryEngine
			.buffer(centerProj, srBuffer, radius, u);
	Geometry bufferout = GeometryEngine.project(buffer, srBuffer, srOut);
	//String json = GeometryEngine.geometryToJson(srOut, bufferout);
	return bufferout;

}
Example 3
Source File: DemoTheatreApp.java    From arcgis-runtime-demo-java with Apache License 2.0 6 votes vote down vote up 
private void highlightGeometry(Point point) {
  if (point == null) {
    return;
  }

  graphicsLayer.removeAll();
  graphicsLayer.addGraphic(
    new Graphic(point, new SimpleMarkerSymbol(Color.CYAN, 20, SimpleMarkerSymbol.Style.CIRCLE)));
  
  // -----------------------------------------------------------------------------------------
  // Zoom to the highlighted graphic
  // -----------------------------------------------------------------------------------------
  Geometry geometryForZoom = GeometryEngine.buffer(
    point, 
    map.getSpatialReference(), 
    map.getFullExtent().getWidth() * 0.10, 
    map.getSpatialReference().getUnit());
  map.zoomTo(geometryForZoom);
}
Example 4
Source File: QueryReportProcessor.java    From defense-solutions-proofs-of-concept with Apache License 2.0 5 votes vote down vote up 
private com.esri.ges.spatial.Geometry constructBuffer(Geometry geo, double radius, Unit u) throws GeometryException, JsonParseException, IOException
{
	
	com.esri.core.geometry.Geometry buffer = GeometryEngine.buffer(inGeometry, srBuffer, radius, u);
	com.esri.core.geometry.Geometry bufferout = GeometryEngine.project(buffer, srBuffer, srOut);
	String json = GeometryEngine.geometryToJson(srOut, bufferout);
	return spatial.fromJson(json);
	
}
Example 5
Source File: QueryReportProcessor.java    From defense-solutions-proofs-of-concept with Apache License 2.0 5 votes vote down vote up 
private MapGeometry constructBuffer(Geometry geo, double radius, Unit u) throws JsonParseException, IOException
{
	
	Polygon buffer = GeometryEngine.buffer(inGeometry, srBuffer, radius, u);
	Geometry bufferout = GeometryEngine.project(buffer, srBuffer, srOut);
	MapGeometry mapGeo = new MapGeometry(bufferout, srOut);
	return mapGeo;
	//String json = GeometryEngine.geometryToJson(srOut, bufferout);
	//return spatial.fromJson(json);
	
}
Example 6
Source File: SpatialQProcessor.java    From defense-solutions-proofs-of-concept with Apache License 2.0 5 votes vote down vote up 
private MapGeometry constructBuffer(Geometry geo, double radius, Unit u)
		throws JsonParseException, IOException {
	Polygon buffer = GeometryEngine.buffer(inGeometry, srBuffer, radius, u);
	Geometry bufferout = GeometryEngine.project(buffer, srBuffer, srOut);
	MapGeometry mapGeo = new MapGeometry(bufferout, srOut);
	return mapGeo;
}
Example 7
Source File: ViewshedController.java    From defense-solutions-proofs-of-concept with Apache License 2.0 5 votes vote down vote up 
/**
 * Displays a temporary graphic on the map representing the bounds of the viewshed
 * that will be calculated if the given points are used.
 * @param viewshedCenter the center of the proposed viewshed (i.e. the observer).
 * @param radius the radius of the proposed viewshed.
 * @see #showViewshedBoundsGraphic(com.esri.core.geometry.Point, com.esri.core.geometry.Point)
 * @see #removeViewshedBoundsGraphic()
 */
public void showViewshedBoundsGraphic(Point viewshedCenter, double radius) {
    Polygon buffer = GeometryEngine.buffer(
            viewshedCenter,
            mapController.getSpatialReference(),
            radius,
            mapController.getSpatialReference().getUnit());
    if (0 > viewshedBoundsGraphicId) {
        viewshedBoundsGraphicId = addGraphic(
                new Graphic(buffer, VIEWSHED_BOUNDS_SYMBOL));
    } else {
        updateGraphic(viewshedBoundsGraphicId, buffer);
    }
}
Example 8
Source File: GeometryOnlineApp.java    From arcgis-runtime-demo-java with Apache License 2.0 5 votes vote down vote up 
@Override
public void onMouseClicked(MouseEvent event) {
  graphicsLayer.removeAll();

  // add buffer as a graphic
  Point mapPoint = map.toMapPoint(event.getX(), event.getY());
  final Geometry buffer = GeometryEngine.buffer(
      mapPoint, map.getSpatialReference(), 200000, map.getSpatialReference().getUnit());
  graphicsLayer.addGraphic(new Graphic(buffer, new SimpleFillSymbol(new Color(255, 0, 0, 255))));

  // get states at the buffered area
  QueryTask queryTask = new QueryTask(featureLayer.getUrl());
  QueryParameters queryParams = new QueryParameters();
  queryParams.setInSpatialReference(map.getSpatialReference());
  queryParams.setOutSpatialReference(map.getSpatialReference());
  queryParams.setGeometry(buffer);
  queryParams.setReturnGeometry(true);
  queryParams.setOutFields(new String[] {"STATE_NAME"});

  queryTask.execute(queryParams, new CallbackListener<FeatureResult>() {

    @Override
    public void onError(Throwable arg0) {
      // deal with any exception
    }

    @Override
    public void onCallback(FeatureResult result) {
      for (Object objFeature : result) {
        Feature feature = (Feature) objFeature;
        graphicsLayer.addGraphic(new Graphic(feature.getGeometry(), stateSymbol));
        graphicsLayer.addGraphic(new Graphic(buffer, new SimpleFillSymbol(new Color(255, 0, 0, 255))));


      }
    }
  });
}
Example 9
Source File: OverlayApp.java    From arcgis-runtime-demo-java with Apache License 2.0 5 votes vote down vote up 
@Override
public void onMouseClicked(MouseEvent e) {
  Point pt = map.toMapPoint(e.getX(), e.getY());

  Geometry buffer = GeometryEngine.buffer(pt, map.getSpatialReference(), 200000, map.getSpatialReference().getUnit());

  Graphic g = new Graphic(buffer, bufferSymbol);
  graphicsLayer.addGraphic(g);
}
Example 10
Source File: GeometryOnlineApp.java    From arcgis-runtime-demo-java with Apache License 2.0 5 votes vote down vote up 
@Override
public void onMouseClicked(MouseEvent event) {
  graphicsLayer.removeAll();

  // add buffer as a graphic
  Point mapPoint = map.toMapPoint(event.getX(), event.getY());
  Geometry buffer = GeometryEngine.buffer(
      mapPoint, map.getSpatialReference(), 200000, map.getSpatialReference().getUnit());
  graphicsLayer.addGraphic(new Graphic(buffer, new SimpleFillSymbol(new Color(100, 0, 0, 80))));

  // get states at the buffered area
  QueryTask queryTask = new QueryTask(featureLayer.getUrl());
  QueryParameters queryParams = new QueryParameters();
  queryParams.setInSpatialReference(map.getSpatialReference());
  queryParams.setOutSpatialReference(map.getSpatialReference());
  queryParams.setGeometry(buffer);
  queryParams.setReturnGeometry(true);
  queryParams.setOutFields(new String[] {"STATE_NAME"});

  queryTask.executeAsync(queryParams, new CallbackListener<FeatureResult>() {

    @Override
    public void onError(Throwable arg0) {
      // deal with any exception
    }

    @Override
    public void onCallback(FeatureResult result) {
      for (Object objFeature : result) {
        Feature feature = (Feature) objFeature;
        graphicsLayer.addGraphic(new Graphic(feature.getGeometry(), stateSymbol));
      }
    }
  });
}
Example 11
Source File: OverlayApp.java    From arcgis-runtime-demo-java with Apache License 2.0 5 votes vote down vote up 
@Override
public void onMouseClicked(MouseEvent e) {
  Point pt = map.toMapPoint(e.getX(), e.getY());

  Geometry buffer = GeometryEngine.buffer(pt, map.getSpatialReference(), 200000, map.getSpatialReference().getUnit());

  Graphic g = new Graphic(buffer, bufferSymbol);
  graphicsLayer.addGraphic(g);
}
Example 12
Source File: GeoFunctions.java    From Bats with Apache License 2.0 4 votes vote down vote up 
/** Computes a buffer around {@code geom}. */
public static Geom ST_Buffer(Geom geom, double distance) {
  final Polygon g = GeometryEngine.buffer(geom.g(), geom.sr(), distance);
  return geom.wrap(g);
}
Example 13
Source File: GeoFunctions.java    From Quicksql with MIT License 4 votes vote down vote up 
/** Computes a buffer around {@code geom}. */
public static Geom ST_Buffer(Geom geom, double distance) {
  final Polygon g = GeometryEngine.buffer(geom.g(), geom.sr(), distance);
  return geom.wrap(g);
}
Example 14
Source File: GeoFunctions.java    From calcite with Apache License 2.0 4 votes vote down vote up 
/** Computes a buffer around {@code geom}. */
public static Geom ST_Buffer(Geom geom, double distance) {
  final Polygon g = GeometryEngine.buffer(geom.g(), geom.sr(), distance);
  return geom.wrap(g);
}
Example 15
Source File: GeometryOfflineApp.java    From arcgis-runtime-demo-java with Apache License 2.0 4 votes vote down vote up 
/**
 * Handle mouse-clicks.
 * On left-click - draws either a polyline or a point.
 * On right-click - computes and draws the buffer of the polyline or point.
 */
@Override
public void onMouseMoved(MouseEvent event) {
  super.onMouseMoved(event);

  gLayer.removeAll();

  Point currPoint = jMap.toMapPoint(event.getX(), event.getY());
  // point
  bufferedArea = GeometryEngine.buffer(
      currPoint,
      jMap.getSpatialReference(),
      BUFFER_DISTANCE,
      jMap.getSpatialReference().getUnit());
  Graphic currPointGraphic = new Graphic(currPoint, GeometryOfflineApp.SYM_POINT);
  gLayer.addGraphic(currPointGraphic);

  // add the buffered area to the graphics layer
  Graphic bufferedGraphic = new Graphic(bufferedArea, GeometryOfflineApp.SYM_BUFFER);
  gLayer.addGraphic(bufferedGraphic);

  if (queryInProgress.get() == false) {
    // query
    QueryParameters query = new QueryParameters();
    query.setReturnGeometry(true);
    query.setGeometry(bufferedArea);
    query.setOutFields(new String[] {"STATE_NAME"});

    // execute the query.
    table.queryFeatures(query, new CallbackListener<FeatureResult>() {

      
      @Override
      public void onError(Throwable e) {
        e.printStackTrace();
      }

      @Override
      public void onCallback(FeatureResult result) {
        gLayerResults.removeAll();
        for (Object objFeature : result) {
          Feature feature = (Feature) objFeature;
          gLayerResults.addGraphic(new Graphic(feature.getGeometry(), SYM_BUFFER));
        }
        queryInProgress.set(false);
      }
    });
    queryInProgress.set(true);
  }

  prevPoint = null;
  polyLine.setEmpty();

  return;
}
Example 16
Source File: GeometryApp.java    From arcgis-runtime-demo-java with Apache License 2.0 4 votes vote down vote up 
/**
 * Handle mouse-clicks.
 * On left-click - draws either a polyline or a point.
 * On right-click - computes and draws the buffer of the polyline or point.
 */
@Override
public void onMouseMoved(MouseEvent event) {
  super.onMouseMoved(event);

  gLayer.removeAll();

  Point currPoint = jMap.toMapPoint(event.getX(), event.getY());
  // point
  bufferedArea = GeometryEngine.buffer(
      currPoint,
      jMap.getSpatialReference(),
      BUFFER_DISTANCE,
      jMap.getSpatialReference().getUnit());
  Graphic currPointGraphic = new Graphic(currPoint, GeometryApp.SYM_POINT);
  gLayer.addGraphic(currPointGraphic);

  // add the buffered area to the graphics layer
  Graphic bufferedGraphic = new Graphic(bufferedArea, GeometryApp.SYM_BUFFER);
  gLayer.addGraphic(bufferedGraphic);

  if (queryInProgress.get() == false) {
    // query
    QueryParameters query = new QueryParameters();
    query.setReturnGeometry(true);
    query.setGeometry(bufferedArea);
    query.setOutFields(new String[] {"STATE_NAME"});

    // execute the query.
    table.queryFeatures(query, new CallbackListener<FeatureResult>() {

      
      @Override
      public void onError(Throwable e) {
        e.printStackTrace();
      }

      @Override
      public void onCallback(FeatureResult result) {
        gLayerResults.removeAll();
        for (Object objFeature : result) {
          Feature feature = (Feature) objFeature;
          gLayerResults.addGraphic(new Graphic(feature.getGeometry(), SYM_BUFFER));
        }
        queryInProgress.set(false);
      }
    });
    queryInProgress.set(true);
  }

  prevPoint = null;
  polyLine.setEmpty();

  return;
}