Java ConsecutivePairs類代碼示例

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
@Override
    protected void createInitial() {
//        createCircularPoints( 5, 200, 200, 150);

        // cross shape:
        Loop<Bar> loop = new Loop();
        edges.add(loop);

        for (Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>(Arrays.asList(
                new Point2d(250, 100),
                new Point2d(350, 100),
                new Point2d(350, 250),
                new Point2d(500, 250),
                new Point2d(500, 350),
                new Point2d(350, 350),
                new Point2d(350, 500),
                new Point2d(250, 500),
                new Point2d(250, 350),
                new Point2d(100, 350),
                new Point2d(100, 250),
                new Point2d(250, 250)), true)) {
            Bar bar = new Bar(pair.first(), pair.second());
            offset.put(bar, Math.random() > 0.5 );
            loop.append(bar);
        }
    }
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public static Loop<Edge> fromPoints( List<Point2d> ribbon )
{
    Loop<Edge> loop = new Loop();
    Cache<Point2d, Corner> cache = new Cache<Point2d, Corner>()
    {
        @Override
        public Corner create( Point2d i )
        {
            return new Corner (i.x, i.y);
        }
    };
    for ( Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>( ribbon, true ) )
    {
        loop.append( new Edge( cache.get( pair.first() ), cache.get( pair.second() ) ) );
    }

    return loop;
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public void setFrom (double[][] ptData, Profile[] profs)
{
    points = new LoopL();
    Loop<Bar> loop = new Loop();
    points.add( loop );

    List<Point2d> lPoints = new ArrayList();
    for (double[] dv : ptData) {
        lPoints.add(new Point2d(dv[0], dv[1]));
    }

    int i = 0;
    for (Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>(lPoints, true)) {
        Bar b;
        loop.append(b = new Bar(pair.first(), pair.second()));
        profiles.put(b, profs[i++]);
    }
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public static void createCross( Plan plan, Profile profile ) {
	LoopL<Bar> loopl = new LoopL();
	Loop<Bar> loop = new Loop();
	loopl.add( loop );

	List<Point2d> pts = Arrays.asList(
			//            new Point2d (100, 250),
			//            new Point2d (250,250),
			//            new Point2d (250,100),
			//            new Point2d (350,100),
			//            new Point2d (400,600)

			new Point2d( 250, 100 ), new Point2d( 350, 100 ), new Point2d( 350, 250 ), new Point2d( 500, 250 ), new Point2d( 500, 350 ), new Point2d( 350, 350 ), new Point2d( 350, 500 ), new Point2d( 250, 500 ), new Point2d( 250, 350 ), new Point2d( 100, 350 ), new Point2d( 100, 250 ), new Point2d( 250, 250 ) );

	for ( Point2d p : pts )
		p.scale( 0.3 );

	for ( Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>( pts, true ) ) {
		Bar b;
		loop.append( b = new Bar( pair.first(), pair.second() ) );
		plan.profiles.put( b, profile );
	}
	plan.points = loopl;
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
@Override
			public void paint( Object o, Graphics2D g, PanMouseAdaptor ma ) {
				
				Prof p = (Prof)o;
				
				for (Pair<Point2d, Point2d> line : new ConsecutivePairs<>( p, false )) {
//					g.setColor( Color.black );
					g.drawLine(ma.toX(line.first().x), ma.toY(-line.first().y), ma.toX(line.second().x), ma.toY(-line.second().y));
					PaintThing.setBounds( line.first() );
//					g.setColor( Color.red );
					for (Point2d s : new Point2d[] {line.first(), line.second()}) {
						g.fillOval(ma.toX(s.x) - 4, ma.toY(-s.y) - 4, 8, 8);
					}
				}
			}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
private void addCoords (Coordinate coords[], MathTransform transform) throws Throwable {
		for (Pair<Coordinate, Coordinate> pair : new ConsecutivePairs<Coordinate>( Arrays.asList( coords ) , true)) {
			
			double 
				x1 = pair.first().x,// - cen.getCoordinate().x, 
				y1 = pair.first().y,// - cen.getCoordinate().y,
				x2 = pair.second().x,// - cen.getCoordinate().x, 
				y2 = pair.second().y;// - cen.getCoordinate().y;

			if (targetCRS != null && transform != null)
			{
				double[] result = new double[] {x1, y1, x2, y2, 0, 0};
				transform.transform( result, 0, result, 0, 2 );
				
				addLine (
						new double[] {result[0], result[1], result[2]}, 
						new double[] {result[3], result[4], result[5]}
						);
				
			}
			else {
				
				addLine(new double[] {x1, y1}, new double[] { x2, y2} );
			}
			
//			GML2Graph.this.result.newLine(new Point2d(x1, y1), new Point2d(x2, y2));
			
		}

	}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public static LoopL<Bar> createfourSqaures( Plan plan, Profile profile ) {
	LoopL<Bar> loopl = new LoopL();

	List<Point2d> pts = Arrays.asList(
			//            new Point2d (100, 250),
			//            new Point2d (250,250),
			//            new Point2d (250,100),
			//            new Point2d (350,100),
			//            new Point2d (400,600)

			new Point2d( 0, 0 ), new Point2d( -50, 0 ), new Point2d( -50, -50 ), new Point2d( 0, -50 ) );

	//         for (Point2d p : pts)
	//             p.scale( 0.3 );

	List<List<Point2d>> stp = new ArrayList();

	for ( Point2d offset : new Point2d[] { new Point2d( 0, 150 ), new Point2d( 0, -150 ), new Point2d( 150, 0 ), new Point2d( -150, 0 ) } ) {
		List<Point2d> t = new ArrayList();
		stp.add( t );

		for ( Point2d pt : pts )
			t.add( new Point2d( offset.x + pt.x, offset.y + pt.y ) );
	}

	for ( List<Point2d> pts2 : stp ) {
		Loop<Bar> loop = new Loop();
		loopl.add( loop );

		for ( Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>( pts2, true ) ) {
			Bar b;
			loop.append( b = new Bar( pair.first(), pair.second() ) );
			plan.profiles.put( b, profile );
		}
	}

	return loopl;
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public static void tube (MeshBuilder out, 
			Collection<LinearForm3D> before, Collection<LinearForm3D> after, 
			Line3d line, LinearForm3D left, LinearForm3D right, CrossGen gen ) {
		
		if (angle ( before, line) < 0.1 || angle ( after, line ) < 0.1 )
			return; // too pointy to touch
		
		Point3d middle = line.fromPPram( 0.5 );
		
		Vector3d along = line.dir();
		along.normalize();
		Vector3d nAlong = new Vector3d (along);
		nAlong.negate();
		
		Vector3d o1 = left.normal(), u1 = new Vector3d();
		u1.cross( along, o1 );
		
		Frame frame = Mathz.buildFrame ( o1, u1, along, middle);
		
		Vector3d u2 = right.normal();
		u2.cross( u2, along );
//		u2.add( middle );
		
		Vector2d leftDir = Mathz.toXY ( frame, u1 );
		Vector2d rightDir = Mathz.toXY ( frame, u2 );
		
		List<Point3d> profilePts = gen.gen( leftDir, rightDir ).stream().
				map( p -> Mathz.fromXY( frame, p ) ).collect( Collectors.toList() );
		
		List<LinearForm3D> dummy = new ArrayList<>();
		
		for (Pair <Point3d, Point3d> pair : new ConsecutivePairs<Point3d>( profilePts, true ) ) {
			
			Point3d 
					f1 = clip ( pair.first (), along , after , dummy ),
					f2 = clip ( pair.second(), along , after , dummy ),
					b1 = clip ( pair.first (), nAlong, before, dummy ),
					b2 = clip ( pair.second(), nAlong, before, dummy );

			out.add (f2, f1, b1, b2);
		}
		
//		cap( out, after ,  along, profilePts, true  );
//		cap( out, before, nAlong, profilePts, false );
	}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
protected void createInitial()
    {
//        createCircularPoints( 5, 200, 200, 150);

        // cross shape:
        Loop<Bar> loop = new Loop();
        edges.add( loop );

        for ( Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>( Arrays.asList(
            new Point2d (250,100),
            new Point2d (350,100),
            new Point2d (350,250),
            new Point2d (500, 250),
            new Point2d (500, 350),
            new Point2d (350, 350),
            new Point2d (350, 500),
            new Point2d (250, 500),
            new Point2d (250, 350),
            new Point2d (100, 350),
            new Point2d (100, 250),
            new Point2d (250,250)
                ), true ))
        {
            loop.append( new Bar( pair.first(), pair.second() ) );
        }

// F-shape
//        for ( Pair<Point2d, Point2d> pair : new ConsecutivePairs<Point2d>( Arrays.asList(
//            new Point2d (250,100),
//            new Point2d (350,100),
//            new Point2d (350,250),
//            new Point2d (500, 250),
//            new Point2d (500, 100),
//            new Point2d (600, 100),
//            new Point2d (600, 250),
//            new Point2d (700, 250),
//            new Point2d (700, 350),
//            new Point2d (100, 350),
//            new Point2d (100, 250),
//            new Point2d (250,250)
//                ), true ))
//        {
//            loop.append( new Bar( pair.first(), pair.second() ) );
//        }
    }
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public Point2d findRoofLine() {

		double nonVertRun = 0;
		Line up = new Line( 0, 0, 0, 1 );
		Point2d runStart = null;

		
		for ( Pair<Point2d, Point2d> line : new ConsecutivePairs<>( this, false ) ) {
			Line l = new Line( line.first(), line.second() );

			double angle = l.absAngle( up );
			
			if ( angle > Math.PI / 6 && angle < Math.PI ) {
				if ( nonVertRun == 0 )
					runStart = l.start;

				nonVertRun += l.length();
			} else {
				
				if (nonVertRun > 2 && runStart != null)
					return runStart;
					
				nonVertRun = 0;
			}

		}
		
		return runStart == null ? get(size()-1) : runStart;
	}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
public double length() {
	
	double out = 0;
	
	for (Pair<Point2d, Point2d> line : new ConsecutivePairs<>( this, false ))
		out += new Line (line.first(), line.second()).length();
	
	return out;
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
@Override
public double getDistance( Point2d pt ) {
	
       double dist = Double.MAX_VALUE;

       for (Pair<Point2d,Point2d> pts : new ConsecutivePairs<Point2d> ( Arrays.asList( points() ), true))
           dist = Math.min (dist, new Line( pts.first(), pts.second() ).distance(pt, true));

       if (contains( pt ))
       	return 0;
       
       return dist;
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
private double minHullAngle() { // very sharp, and very concave angles return high values
	
	if (hull.size() <= 1)
		return 0;
	
	double min = Double.MAX_VALUE;
	
	for (Pair <Line,Line> a : new ConsecutivePairs<>(hull, false)) 
		min = Math.min(min, Anglez.dist ( a.first().aTan2(), a.second().aTan2() ) );
	
	return min;
}
 

import org.twak.utils.collections.ConsecutivePairs; //導入依賴的package包/類
@Override
		public void geometry(Geometry arg0) {
			
			if (arg0 == null || arg0.getArea() < 80)
				return;
			
			// TODO Auto-generated method stub
			if (count != 0) {
				System.out.println(arg0.getGeometryType());
		
				try {
					
					Point cen = arg0.getCentroid();
					Coordinate latLong = new Coordinate();
					
					JTS.transform(cen.getCoordinate(), latLong, transform);
					
					System.out.println(" ************************* " + count + " " + featureName);
					System.out.println("in EPSG:27700 " + cen);
					System.out.println("lat long " + latLong);

					URL url = new URL("https://maps.googleapis.com/maps/api/staticmap?center="+latLong.x+","+latLong.y+"&zoom=20&size=640x640&maptype=satellite&format=png32&key=AIzaSyDYAQH5nMlF0vEfdIg0seTiGUIcRbLNeI4");
					URLConnection connection = url.openConnection();
					InputStream is = connection.getInputStream();
//					
					BufferedImage image = ImageIO.read(is);// new BufferedImage( 640,640, BufferedImage.TYPE_3BYTE_BGR );
//					BufferedImage image = new BufferedImage( 640,640, BufferedImage.TYPE_3BYTE_BGR );
					Graphics2D g2 = (Graphics2D) image.getGraphics();
					g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
					
					double scale = 11f;

					int imageCenX = image.getWidth () >> 1,
						imageCenY = image.getHeight() >> 1;
					
							
					g2.setColor(Color.red);
					g2.setStroke(new BasicStroke(2f));
					
					for (Pair<Coordinate, Coordinate> pair : new ConsecutivePairs<Coordinate>( Arrays.asList( arg0.getCoordinates() ), true)) {
						
						double 
							x1 = pair.first().x - cen.getCoordinate().x, 
							y1 = pair.first().y - cen.getCoordinate().y,
							x2 = pair.second().x - cen.getCoordinate().x, 
							y2 = pair.second().y - cen.getCoordinate().y;

						x1 *= scale; x2 *= scale; y1 *= scale; y2 *= scale;
							
						g2.draw( new Line2D.Double(x1 + imageCenX, - y1 + imageCenY, x2 + imageCenX, - y2 +imageCenY) );
						
					}
					
					
					g2.drawString( HeightsToRedis.getHeight(featureName) +"m below roof", 5, 15 );
					g2.drawString( HeightsToRedis.getRoof(featureName) +"m including roof", 5, 30 );
					g2.drawString( latLong.x + ", " + latLong.y + " location ", 5, 45 );
					
					
					g2.dispose();
					
					
					
					ImageIO.write(image, "png", new FileOutputStream ( String.format( "/home/twak/data/footprints/center%04d.png", count )) );
					
					is.close();
					
					if (count > 1000)
						System.exit(0);
					
					
				} catch (Throwable e) {
					e.printStackTrace();
					System.exit(0);
				}
			}
			count++;
			featureName = "?";
		}