com.esri.core.geometry.LinearUnit Java Examples

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);
	
}
 

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;

}
 

private void addEllipses(int numberOfEllipses) {
  SimpleMarkerSymbol[] symbols = {symbol4, symbol3, symbol2, symbol1};
  // some values that works well
  int majorAxisLength = 4612483;
  int minorAxisLength = 1843676;

  centerPoint = new Point(500000-5000000, 500000 + 3000000);
  centerGraphicsLayer.addGraphic(new Graphic(centerPoint, null));

  for (int i = 0; i < numberOfEllipses; i++) {
    Point center = new Point(random.nextInt(500000)-5000000, random.nextInt(500000) + 3000000);
    int majorAxisDirection = random.nextInt(60);
    LinearUnit unit = new LinearUnit(LinearUnit.Code.METER);

    Geometry ellipse = GeometryEngine.geodesicEllipse(center, map.getSpatialReference(), majorAxisLength, minorAxisLength,
        majorAxisDirection, pointCount, unit, Geometry.Type.MULTIPOINT);

    if (ellipse instanceof MultiPoint) {
      SimpleMarkerSymbol symbol = symbols[i%4];
      MultiPoint mp = (MultiPoint) ellipse;
      Ellipse currentEllipse = new Ellipse(mp); 
      ellipses.add(currentEllipse);
      int j = 0;
      while (j < mp.getPointCount()) {
        if (j%8==0) {
          Point point = mp.getPoint(j);
          int id = ellipseGraphicsLayer.addGraphic(new Graphic(point, symbol));
          currentEllipse.addPoint(id, j);
        }
        j++;
      }
    }
  }
}
 

private Unit queryUnit(String units)
{
	UnitConverter uc = new UnitConverter();
	String cn = uc.findConnonicalName(units);
	int unitout = uc.findWkid(cn);
	Unit  u = new LinearUnit(unitout);
	return u;
}
 

private void addEllipses(int numberOfEllipses) {
  SimpleMarkerSymbol[] symbols = {symbol4, symbol3, symbol2, symbol1};
  // some values that works well
  int majorAxisLength = 4612483;
  int minorAxisLength = 1843676;

  centerPoint = new Point(500000-5000000, 500000 + 3000000);
  centerGraphicsLayer.addGraphic(new Graphic(centerPoint, null));

  for (int i = 0; i < numberOfEllipses; i++) {
    Point center = new Point(random.nextInt(500000)-5000000, random.nextInt(500000) + 3000000);
    int majorAxisDirection = random.nextInt(60);
    LinearUnit unit = new LinearUnit(LinearUnit.Code.METER);

    Geometry ellipse = GeometryEngine.geodesicEllipse(center, map.getSpatialReference(), majorAxisLength, minorAxisLength,
        majorAxisDirection, pointCount, unit, Geometry.Type.MULTIPOINT);

    if (ellipse instanceof MultiPoint) {
      SimpleMarkerSymbol symbol = symbols[i%4];
      MultiPoint mp = (MultiPoint) ellipse;
      Ellipse currentEllipse = new Ellipse(mp); 
      ellipses.add(currentEllipse);
      int j = 0;
      while (j < mp.getPointCount()) {
        if (j%8==0) {
          Point point = mp.getPoint(j);
          int id = ellipseGraphicsLayer.addGraphic(new Graphic(point, symbol));
          currentEllipse.addPoint(id, j);
        }
        j++;
      }
    }
  }
}
 

@Override
public void onLocationChanged(Location location) {
  if (!locationChanged) {
    // For first fix location, convert to map spatial reference.
    Point currentPt = new Point(location.getLongitude(), location.getLatitude());
    Point currentMapPt = (Point) GeometryEngine.project(currentPt,
        SpatialReference.create(4326), mMapView.getSpatialReference());

    // Use a suitable accuracy value for the typical app usage, if no accuracy
    // value is available.
    float accuracy = 100;
    if (location.hasAccuracy()) {
      accuracy = location.getAccuracy();
    }

    // Convert the accuracy to units of the map, and apply a suitable zoom
    // factor for the app.
    Unit mapUnits = mMapView.getSpatialReference().getUnit();
    double zoomToWidth = 500 * Unit.convertUnits(accuracy,
        Unit.create(LinearUnit.Code.METER), mapUnits);
    Envelope zoomExtent = new Envelope(currentMapPt, zoomToWidth, zoomToWidth);

    // Make sure that the initial zoom is done WITHOUT animation, or it may
    // interfere with autopan.
    mMapView.setExtent(zoomExtent, 0, false);

    // Dont run this again.
    locationChanged = true;

    // Now start the navigation mode.
    mLocDispMgr.setAutoPanMode(LocationDisplayManager.AutoPanMode.NAVIGATION);
  }
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

private void processVertices(GeoEvent ge, Polyline polyln, double distTotal, long start, long end, LinearUnit lu, Boolean projected) throws MessagingException, FieldException
{
	int count = polyln.getPointCount();
	double currentDist = 0;
	long currentTime = start;
	long totalTime = end - start;
	Geometry outGeo = null;
	Point projGeo = null;
	Point lastPoint = null;
	for(int i = 0; i < count; ++i)
	{
		projGeo = polyln.getPoint(i);
		
		if(i!=0)
		{
			Polyline seg = new Polyline();
			seg.startPath(lastPoint);
			seg.lineTo(projGeo);
			double segDist = GeometryEngine.geodesicLength(seg, processSr, lu);
			currentDist += segDist;
			double percent = currentDist/distTotal;
			currentTime = (long) Math.floor((start + (totalTime*percent)));
			
		}
		if(projected)
		{
			outGeo = GeometryEngine.project(projGeo, processSr, outSr);
		}
		else
		{
			outGeo=projGeo;
		}
		MapGeometry outMapGeo = new MapGeometry(outGeo, outSr);
		double minutesFromStart = (currentTime - start)/60000;
		GeoEvent msg = createVertexGeoevent(ge, outMapGeo, currentDist, currentTime, minutesFromStart, i);
		send(msg);
		lastPoint = projGeo;
	}
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

private Unit queryUnit(String units) {
	UnitConverter uc = new UnitConverter();
	String cn = uc.findConnonicalName(units);
	int unitout = uc.findWkid(cn);
	Unit u = LinearUnit.create(unitout);
	return u;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

private Unit queryUnit(String units)
{
	UnitConverter uc = new UnitConverter();
	String cn = uc.findConnonicalName(units);
	int unitout = uc.findWkid(cn);
	Unit  u = LinearUnit.create(unitout);
	return u;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = LinearUnit.create(wkidin);
	Unit uout = LinearUnit.create(wkidout);
	value = Unit.convertUnits(value, uin, uout);
	return value;
}
 

public double Convert( double value, int wkidin, int wkidout)
{
	Unit uin = new LinearUnit(wkidin);
	Unit uout = new LinearUnit(wkidout);
	value = Unit.convertUnits(value, uin, uout);
	return value;
}