Java Graphic类代码示例

import com.esri.core.map.Graphic; //导入依赖的package包/类
private void add(List<Cluster<ClusterableLocation>> clusters) {
  int max = getMax(clusters);
  for (Cluster<ClusterableLocation> cluster : clusters) {
    Geometry geometry = null;
    Symbol symbol = null;
    Color color = cluster.getPoints().size() == max ? Color.RED : Color.GRAY;
    ClusterType thisClusterType = cluster.getPoints().size() < 2 ? ClusterType.POINT : clusterType;
    switch (thisClusterType) {
      default:
      case POINT:
        geometry = getCenter(cluster);
        symbol = createPointSymbol(color, cluster.getPoints().size());
        break;
      case BOUNDING_RECTANGLE:
        geometry = getBoundingRectangle(cluster);
        symbol = createPolygonSymbol(color, cluster.getPoints().size());
        break;
      case CONVEX_HULL:
        geometry = getConvexHull(cluster);
        symbol = createPolygonSymbol(color, cluster.getPoints().size());
        break;
    };
    addGraphic(new Graphic(geometry, symbol));
  }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
/**
 * Sets the point that was used for the identify operation, for display purposes.
 * Ignored if null.
 * @param pt The point that was used for the identify operation, for display
 *           purposes. Ignored if null.
 */
public void setIdentifyPoint(Point pt) {
    identifyPoint = pt;
    if (null != pt) {
        graphicsLayer.setVisible(true);
        if (!isGraphicsLayerAdded) {
            mapController.addLayer(Integer.MAX_VALUE, graphicsLayer, false);
            isGraphicsLayerAdded = true;
        }
        String mgrs = mapController.pointToMgrs(pt, mapController.getSpatialReference());
        jLabel_mgrs.setText(mgrs);

        if (-1 != identifyPointGraphicUid) {
            graphicsLayer.updateGraphic(identifyPointGraphicUid, pt);
        } else {
            identifyPointGraphicUid = graphicsLayer.addGraphic(new Graphic(pt, identifyPointSymbol));
        }

    }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
@Override
protected Integer displaySpotReport(double x, double y, final int wkid, Integer graphicId, Geomessage geomessage) {
    try {
        Geometry pt = new Point(x, y);
        if (null != mapController.getSpatialReference() && wkid != mapController.getSpatialReference().getID()) {
            pt = GeometryEngine.project(pt, SpatialReference.create(wkid), mapController.getSpatialReference());
        }
        if (null != graphicId) {
            spotReportLayer.updateGraphic(graphicId, pt);
            spotReportLayer.updateGraphic(graphicId, geomessage.getProperties());
        } else {
            Graphic graphic = new Graphic(pt, spotReportSymbol, geomessage.getProperties());
            graphicId = spotReportLayer.addGraphic(graphic);
            
        }
        return graphicId;
    } catch (NumberFormatException nfe) {
        Logger.getLogger(getClass().getName()).log(Level.SEVERE, "Could not parse spot report", nfe);
        return null;
    }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
private void removeGeomessage(Graphic graphic, boolean sendRemoveMessageForOwnMessages) {
    final String geomessageId = (String) graphic.getAttributeValue(Geomessage.ID_FIELD_NAME);
    final String geomessageType = (String) graphic.getAttributeValue(Geomessage.TYPE_FIELD_NAME);
    String uniqueDesignation = (String) graphic.getAttributeValue("uniquedesignation");
    if (sendRemoveMessageForOwnMessages && null != uniqueDesignation && uniqueDesignation.equals(messageController.getSenderUsername())) {
        new Thread() {
            public void run() {
                try {
                    sendRemoveMessage(messageController, geomessageId, geomessageType);
                } catch (Throwable t) {
                    Logger.getLogger(getClass().getName()).log(Level.SEVERE, "Couldn't send REMOVE message", t);
                }
            }
        }.start();
    } else {
        processRemoveGeomessage(geomessageId, geomessageType);
    }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
/**
 * Computes the drive time zones on click of the mouse.
 */
@Override
public void mouseClicked(MouseEvent mapEvent) {

  super.mouseClicked(mapEvent);

  if (!enabled) {
    return;
  }

  if (mapEvent.getButton() == MouseEvent.BUTTON3) {
    // remove zones from previous computation
    graphicsLayer.removeAll();
    return;
  }

  // the click point is the starting point
  Point startPoint = jMap.toMapPoint(mapEvent.getX(), mapEvent.getY());
  Graphic startPointGraphic = new Graphic(startPoint, SYM_START_POINT);
  graphicsLayer.addGraphic(startPointGraphic);

  executeDriveTimes(startPointGraphic);
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
/**
 * Process result from geoprocessing execution.
 * 
 * @param result output of geoprocessing execution.
 */
private void processResult(GPParameter[] result) {
  for (GPParameter outputParameter : result) {
    if (outputParameter instanceof GPFeatureRecordSetLayer) {
      GPFeatureRecordSetLayer gpLayer = (GPFeatureRecordSetLayer) outputParameter;
      int zone = 0;
      // get all the graphics and add them to the graphics layer.
      // there will be one graphic per zone.
      for (Graphic graphic : gpLayer.getGraphics()) {
        Graphic theGraphic = new Graphic(graphic.getGeometry(), zoneFillSymbols[zone++]);
        // add to the graphics layer
        graphicsLayer.addGraphic(theGraphic);
      }
    }
  }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
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);
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
/**
 * Process result from geoprocessing execution.
 * 
 * @param result output of geoprocessing execution.
 */
private void processResult(GPParameter[] result) {
  for (GPParameter outputParameter : result) {
    if (outputParameter instanceof GPFeatureRecordSetLayer) {
      GPFeatureRecordSetLayer gpLayer = (GPFeatureRecordSetLayer) outputParameter;
      int zone = 0;
      // get all the graphics and add them to the graphics layer.
      // there will be one graphic per zone.
      for (Graphic graphic : gpLayer.getGraphics()) {
        SpatialReference fromSR = SpatialReference.create(4326);
        Geometry g = graphic.getGeometry();
        Geometry pg = GeometryEngine.project(g, fromSR, jMap.getSpatialReference());
        Graphic theGraphic = new Graphic(pg, zoneFillSymbols[zone++]);
        // add to the graphics layer
        graphicsLayer.addGraphic(theGraphic);
      }
    }
  }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
/**
 * Parse GeoJSON file and add the features to a graphics layer.
 * @param graphicsLayer layer to which the features should be added.
 */
private void addGeoJsonFeatures(GraphicsLayer graphicsLayer) {
  try {
    // create an instance of the parser
    GeoJsonParser geoJsonParser = new GeoJsonParser();
    
    // provide the symbology for the features
    CompositeSymbol symbol = new CompositeSymbol();
    symbol.add(new SimpleFillSymbol(new Color(0, 255, 0, 70)));
    symbol.add(new SimpleLineSymbol(Color.BLACK, 2));
    geoJsonParser.setSymbol(symbol).setOutSpatialReference(map.getSpatialReference());
    
    // parse geojson data
    File geoJsonFile = new File(GEOJSON_DATA_FILE);
    List<Feature> features = geoJsonParser.parseFeatures(geoJsonFile);
    
    // add parsed features to a layer
    for (Feature f : features) {
     graphicsLayer.addGraphic(new Graphic(f.getGeometry(), f.getSymbol(), f.getAttributes()));
    }
  } catch (Exception ex) {
    throw new RuntimeException(ex);
  }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
private List<Feature> parseFeatures(ArrayNode jsonFeatures) {
  List<Feature> features = new LinkedList<Feature>();
  for (JsonNode jsonFeature : jsonFeatures) {
    String type = jsonFeature.path(FIELD_TYPE).getTextValue();
    if (!FIELD_FEATURE.equals(type)) {
      continue;
    }
    Geometry g = parseGeometry(jsonFeature.path(FIELD_GEOMETRY));
    if (outSR != null && outSR.getID() != 4326) {
      g = GeometryEngine.project(g, inSR, outSR);
    }
    Map<String, Object> attributes = parseProperties(jsonFeature.path(FIELD_PROPERTIES));
    Feature f = new Graphic(g, symbol, attributes);
    features.add(f);
  } 
  return features; 
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
private void addStaticGraphicsBulk(int numberOfGraphicsToAdd) {

    double minx = mapExtent.getXMin();
    double maxx = mapExtent.getXMax();
    double miny= mapExtent.getYMin();
    double maxy = mapExtent.getYMax();

    Point[] points = new Point[numberOfGraphicsToAdd];
    Graphic[] graphics = new Graphic[numberOfGraphicsToAdd];
    int i = 0;
    while (i < numberOfGraphicsToAdd) {
      Point point = new Point((random.nextFloat()*(maxx-minx)) + minx, (random.nextFloat()*(maxy-miny)) + miny);
      points[i] = point;
      graphics[i] = new Graphic(point, null);
      i++;
    }
    int[] ids = staticGraphicsLayer.addGraphics(graphics);
    
    for (int j = 0; j < numberOfGraphicsToAdd; j++) {
      latestStaticPoints.put(Integer.valueOf(ids[j]), points[j]);
    }
  }
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
private void addGraphics(int numberOfGraphicsToAdd) {

    double minx = mapExtent.getXMin();
    double maxx = mapExtent.getXMax();
    double miny= mapExtent.getYMin();
    double maxy = mapExtent.getYMax();

    int i = 0;
    long startTime = System.currentTimeMillis();
    while (i < numberOfGraphicsToAdd) {
      Point point = new Point((random.nextFloat()*(maxx-minx)) + minx, (random.nextFloat()*(maxy-miny)) + miny);
      int id;
      if (addWithSymbol) {
    	  id = graphicsLayer.addGraphic(new Graphic(point, symbol));
      } else {
    	  id = graphicsLayer.addGraphic(new Graphic(point, null));  
      }
      latestDynamicPoints.put(Integer.valueOf(id), point);
      i++;
    }
    JOptionPane.showMessageDialog(appWindow, "Total time: " + (System.currentTimeMillis() - startTime)/1000.0 + " seconds.");
  }
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
private void movePoints() {
  // loop through them all
  if (dynamicGraphicsLayer.getGraphicIDs()!=null) {
    for (int id : dynamicGraphicsLayer.getGraphicIDs()) {
      Point p1 = latestDynamicPoints.get(Integer.valueOf(id));
      Point p2 = getPointForSmoothMove(p1.getX(), p1.getY(), id);
      if (moveWithReplace) {
      	dynamicGraphicsLayer.removeGraphic(id);
      	int newId = dynamicGraphicsLayer.addGraphic(new Graphic(p2, null));
          latestDynamicPoints.put(Integer.valueOf(newId), p2);
      } else {
      	dynamicGraphicsLayer.updateGraphic(id, p2);
          //dynamicGraphicsLayer.movePointGraphic(id, p2);
          latestDynamicPoints.put(Integer.valueOf(id), p2);
      }
      
      //      dynamicGraphicsLayer.movePointGraphic(id, getRandomPointFrom(p.getX(), p.getY(), spreadOfMove));
    }
  }
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
/**
 * Adds graphics symbolized with SimpleMarkerSymbols.
 * @param graphicsLayer
 */
private void addSimpleMarkerGraphics(GraphicsLayer graphicsLayer, Envelope bounds) {
  SimpleMarkerSymbol symbol = new SimpleMarkerSymbol(Color.RED, 16, Style.CIRCLE);
  double xmin = bounds.getXMin();
  double xmax = bounds.getXMax();
  double xrand;
  double ymin = bounds.getYMin();
  double ymax = bounds.getYMax();
  double yrand;
  for (int i = 0; i < 1000; i++) {
    xrand = xmin + (int) (Math.random() * ((xmax - xmin) + 1));
    yrand = ymin + (int) (Math.random() * ((ymax - ymin) + 1));
    Point point = new Point(xrand, yrand);
    graphicsLayer.addGraphic(new Graphic(point, symbol));
  }
  
}
 

import com.esri.core.map.Graphic; //导入依赖的package包/类
private String GetDistAsString(Graphic g, SpatialReference inputSr, String units)
{
	com.esri.core.geometry.Geometry geo = g.getGeometry();
	com.esri.core.geometry.Geometry curGeo;
	
	if(!inputSr.equals(srBuffer))
	{
		curGeo = GeometryEngine.project(geo, inputSr, srBuffer);
	}
	else
	{
		curGeo=geo;
	}
	double tmpDist = GeometryEngine.distance(inGeometry, curGeo, srBuffer);
	UnitConverter uc = new UnitConverter();
	int inUnitWkid = uc.findWkid(srBuffer.getUnit().getName());
	String cn = uc.findConnonicalName(units);
	int outUnitWkid = uc.findWkid(cn);
	double dist;
	if(inUnitWkid!=outUnitWkid)
	{
		dist = uc.Convert(tmpDist, inUnitWkid, outUnitWkid);
	}
	else
	{
		dist=tmpDist;
	}
	
	DecimalFormat df = new DecimalFormat("#.00");
	return df.format(dist);
}