lucene/spatial3d/src/java/org/apache/lucene/spatial3d/geom/XdYZSolid.java - lucene-solr - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.lucene.spatial3d.geom;

 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.IOException;

 /**
  * 3D rectangle, bounded on six sides by X,Y,Z limits, degenerate in Y
  *
  * @lucene.internal
  */
 class XdYZSolid extends BaseXYZSolid {

   /** Min-X */
   protected final double minX;
   /** Max-X */
   protected final double maxX;
   /** Y */
   protected final double Y;
   /** Min-Z */
   protected final double minZ;
   /** Max-Z */
   protected final double maxZ;

   /** Min-X plane */
   protected final SidedPlane minXPlane;
   /** Max-X plane */
   protected final SidedPlane maxXPlane;
   /** Y plane */
   protected final Plane yPlane;
   /** Min-Z plane */
   protected final SidedPlane minZPlane;
   /** Max-Z plane */
   protected final SidedPlane maxZPlane;

   /** These are the edge points of the shape, which are defined to be at least one point on
    * each surface area boundary.  In the case of a solid, this includes points which represent
    * the intersection of XYZ bounding planes and the planet, as well as points representing
    * the intersection of single bounding planes with the planet itself.
    */
   protected final GeoPoint[] edgePoints;

   /** Notable points for YPlane */
   protected final GeoPoint[] notableYPoints;

   /**
    * Sole constructor
    *
    *@param planetModel is the planet model.
    *@param minX is the minimum X value.
    *@param maxX is the maximum X value.
    *@param Y is the Y value.
    *@param minZ is the minimum Z value.
    *@param maxZ is the maximum Z value.
    */
   public XdYZSolid(final PlanetModel planetModel,
     final double minX,
     final double maxX,
     final double Y,
     final double minZ,
     final double maxZ) {
     super(planetModel);
     // Argument checking
     if (maxX - minX < Vector.MINIMUM_RESOLUTION)
       throw new IllegalArgumentException("X values in wrong order or identical");
     if (maxZ - minZ < Vector.MINIMUM_RESOLUTION)
       throw new IllegalArgumentException("Z values in wrong order or identical");

     this.minX = minX;
     this.maxX = maxX;
     this.Y = Y;
     this.minZ = minZ;
     this.maxZ = maxZ;

     final double worldMinY = planetModel.getMinimumYValue();
     final double worldMaxY = planetModel.getMaximumYValue();

     // Construct the planes
     minXPlane = new SidedPlane(maxX,0.0,0.0,xUnitVector,-minX);
     maxXPlane = new SidedPlane(minX,0.0,0.0,xUnitVector,-maxX);
     yPlane = new Plane(yUnitVector,-Y);
     minZPlane = new SidedPlane(0.0,0.0,maxZ,zUnitVector,-minZ);
     maxZPlane = new SidedPlane(0.0,0.0,minZ,zUnitVector,-maxZ);

     // We need at least one point on the planet surface for each manifestation of the shape.
     // There can be up to 2 (on opposite sides of the world).  But we have to go through
     // 4 combinations of adjacent planes in order to find out if any have 2 intersection solution.
     // Typically, this requires 4 square root operations.
     final GeoPoint[] minXY = minXPlane.findIntersections(planetModel,yPlane,maxXPlane,minZPlane,maxZPlane);
     final GeoPoint[] maxXY = maxXPlane.findIntersections(planetModel,yPlane,minXPlane,minZPlane,maxZPlane);
     final GeoPoint[] YminZ = yPlane.findIntersections(planetModel,minZPlane,maxZPlane,minXPlane,maxXPlane);
     final GeoPoint[] YmaxZ = yPlane.findIntersections(planetModel,maxZPlane,minZPlane,minXPlane,maxXPlane);

     notableYPoints = glueTogether(minXY, maxXY, YminZ, YmaxZ);

     // Now, compute the edge points.
     // This is the trickiest part of setting up an XYZSolid.  We've computed intersections already, so
     // we'll start there.  We know that at most there will be two disconnected shapes on the planet surface.
     // But there's also a case where exactly one plane slices through the world, and none of the bounding plane
     // intersections do.  Thus, if we don't find any of the edge intersection cases, we have to look for that last case.

     // We need to look at single-plane/world intersections.
     // We detect these by looking at the world model and noting its x, y, and z bounds.
     // The cases we are looking for are when the four corner points for any given
     // plane are all outside of the world, AND that plane intersects the world.
     // There are four corner points all told; we must evaluate these WRT the planet surface.
     final boolean minXYminZ = planetModel.pointOutside(minX, Y, minZ);
     final boolean minXYmaxZ = planetModel.pointOutside(minX, Y, maxZ);
     final boolean maxXYminZ = planetModel.pointOutside(maxX, Y, minZ);
     final boolean maxXYmaxZ = planetModel.pointOutside(maxX, Y, maxZ);

     final GeoPoint[] yEdges;
     if (Y - worldMinY >= -Vector.MINIMUM_RESOLUTION && Y - worldMaxY <= Vector.MINIMUM_RESOLUTION &&
       minX < 0.0 && maxX > 0.0 && minZ < 0.0 && maxZ > 0.0 &&
       minXYminZ && minXYmaxZ && maxXYminZ && maxXYmaxZ) {
       // Find any point on the minY plane that intersects the world
       // First construct a perpendicular plane that will allow us to find a sample point.
       // This plane is vertical and goes through the points (0,0,0) and (0,1,0)
       // Then use it to compute a sample point.
       final GeoPoint intPoint = yPlane.getSampleIntersectionPoint(planetModel, yVerticalPlane);
       if (intPoint != null) {
         yEdges = new GeoPoint[]{intPoint};
       } else {
         yEdges = EMPTY_POINTS;
       }
     } else {
       yEdges = EMPTY_POINTS;
     }

     this.edgePoints = glueTogether(minXY, maxXY, YminZ, YmaxZ, yEdges);
   }

   /**
    * Constructor for deserialization.
    * @param planetModel is the planet model.
    * @param inputStream is the input stream.
    */
   public XdYZSolid(final PlanetModel planetModel, final InputStream inputStream) throws IOException {
     this(planetModel,
       SerializableObject.readDouble(inputStream),
       SerializableObject.readDouble(inputStream),
       SerializableObject.readDouble(inputStream),
       SerializableObject.readDouble(inputStream),
       SerializableObject.readDouble(inputStream));
   }

   @Override
   public void write(final OutputStream outputStream) throws IOException {
     SerializableObject.writeDouble(outputStream, minX);
     SerializableObject.writeDouble(outputStream, maxX);
     SerializableObject.writeDouble(outputStream, Y);
     SerializableObject.writeDouble(outputStream, minZ);
     SerializableObject.writeDouble(outputStream, maxZ);
   }

   @Override
   protected GeoPoint[] getEdgePoints() {
     return edgePoints;
   }

   @Override
   public boolean isWithin(final double x, final double y, final double z) {
     return minXPlane.isWithin(x, y, z) &&
       maxXPlane.isWithin(x, y, z) &&
       yPlane.evaluateIsZero(x, y, z) &&
       minZPlane.isWithin(x, y, z) &&
       maxZPlane.isWithin(x, y, z);
   }

   @Override
   public int getRelationship(final GeoShape path) {
     //System.err.println(this+" getrelationship with "+path);
     final int insideRectangle = isShapeInsideArea(path);
     if (insideRectangle == SOME_INSIDE) {
       //System.err.println(" some inside");
       return OVERLAPS;
     }

     // Figure out if the entire XYZArea is contained by the shape.
     final int insideShape = isAreaInsideShape(path);
     if (insideShape == SOME_INSIDE) {
       return OVERLAPS;
     }

     if (insideRectangle == ALL_INSIDE && insideShape == ALL_INSIDE) {
       //System.err.println(" inside of each other");
       return OVERLAPS;
     }

     if (path.intersects(yPlane, notableYPoints, minXPlane, maxXPlane, minZPlane, maxZPlane)) {
       //System.err.println(" edges intersect");
       return OVERLAPS;
     }

     if (insideRectangle == ALL_INSIDE) {
       //System.err.println(" shape inside rectangle");
       return WITHIN;
     }

     if (insideShape == ALL_INSIDE) {
       //System.err.println(" shape contains rectangle");
       return CONTAINS;
     }
     //System.err.println(" disjoint");
     return DISJOINT;
   }

   @Override
   public boolean equals(Object o) {
     if (!(o instanceof XdYZSolid))
       return false;
     XdYZSolid other = (XdYZSolid) o;
     if (!super.equals(other)) {
       return false;
     }
     return other.minXPlane.equals(minXPlane) &&
       other.maxXPlane.equals(maxXPlane) &&
       other.yPlane.equals(yPlane) &&
       other.minZPlane.equals(minZPlane) &&
       other.maxZPlane.equals(maxZPlane);
   }

   @Override
   public int hashCode() {
     int result = super.hashCode();
     result = 31 * result  + minXPlane.hashCode();
     result = 31 * result  + maxXPlane.hashCode();
     result = 31 * result  + yPlane.hashCode();
     result = 31 * result  + minZPlane.hashCode();
     result = 31 * result  + maxZPlane.hashCode();
     return result;
   }

   @Override
   public String toString() {
     return "XdYZSolid: {planetmodel="+planetModel+", minXplane="+minXPlane+", maxXplane="+maxXPlane+", yplane="+yPlane+", minZplane="+minZPlane+", maxZplane="+maxZPlane+"}";
   }

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.lucene.spatial3d.geom;

	import java.io.InputStream;
	import java.io.OutputStream;
	import java.io.IOException;

	/**
	* 3D rectangle, bounded on six sides by X,Y,Z limits, degenerate in Y
	*
	* @lucene.internal
	*/
	class XdYZSolid extends BaseXYZSolid {

	/** Min-X */
	protected final double minX;
	/** Max-X */
	protected final double maxX;
	/** Y */
	protected final double Y;
	/** Min-Z */
	protected final double minZ;
	/** Max-Z */
	protected final double maxZ;

	/** Min-X plane */
	protected final SidedPlane minXPlane;
	/** Max-X plane */
	protected final SidedPlane maxXPlane;
	/** Y plane */
	protected final Plane yPlane;
	/** Min-Z plane */
	protected final SidedPlane minZPlane;
	/** Max-Z plane */
	protected final SidedPlane maxZPlane;

	/** These are the edge points of the shape, which are defined to be at least one point on
	* each surface area boundary. In the case of a solid, this includes points which represent
	* the intersection of XYZ bounding planes and the planet, as well as points representing
	* the intersection of single bounding planes with the planet itself.
	*/
	protected final GeoPoint[] edgePoints;

	/** Notable points for YPlane */
	protected final GeoPoint[] notableYPoints;

	/**
	* Sole constructor
	*
	*@param planetModel is the planet model.
	*@param minX is the minimum X value.
	*@param maxX is the maximum X value.
	*@param Y is the Y value.
	*@param minZ is the minimum Z value.
	*@param maxZ is the maximum Z value.
	*/
	public XdYZSolid(final PlanetModel planetModel,
	final double minX,
	final double maxX,
	final double Y,
	final double minZ,
	final double maxZ) {
	super(planetModel);
	// Argument checking
	if (maxX - minX < Vector.MINIMUM_RESOLUTION)
	throw new IllegalArgumentException("X values in wrong order or identical");
	if (maxZ - minZ < Vector.MINIMUM_RESOLUTION)
	throw new IllegalArgumentException("Z values in wrong order or identical");

	this.minX = minX;
	this.maxX = maxX;
	this.Y = Y;
	this.minZ = minZ;
	this.maxZ = maxZ;

	final double worldMinY = planetModel.getMinimumYValue();
	final double worldMaxY = planetModel.getMaximumYValue();

	// Construct the planes
	minXPlane = new SidedPlane(maxX,0.0,0.0,xUnitVector,-minX);
	maxXPlane = new SidedPlane(minX,0.0,0.0,xUnitVector,-maxX);
	yPlane = new Plane(yUnitVector,-Y);
	minZPlane = new SidedPlane(0.0,0.0,maxZ,zUnitVector,-minZ);
	maxZPlane = new SidedPlane(0.0,0.0,minZ,zUnitVector,-maxZ);

	// We need at least one point on the planet surface for each manifestation of the shape.
	// There can be up to 2 (on opposite sides of the world). But we have to go through
	// 4 combinations of adjacent planes in order to find out if any have 2 intersection solution.
	// Typically, this requires 4 square root operations.
	final GeoPoint[] minXY = minXPlane.findIntersections(planetModel,yPlane,maxXPlane,minZPlane,maxZPlane);
	final GeoPoint[] maxXY = maxXPlane.findIntersections(planetModel,yPlane,minXPlane,minZPlane,maxZPlane);
	final GeoPoint[] YminZ = yPlane.findIntersections(planetModel,minZPlane,maxZPlane,minXPlane,maxXPlane);
	final GeoPoint[] YmaxZ = yPlane.findIntersections(planetModel,maxZPlane,minZPlane,minXPlane,maxXPlane);

	notableYPoints = glueTogether(minXY, maxXY, YminZ, YmaxZ);

	// Now, compute the edge points.
	// This is the trickiest part of setting up an XYZSolid. We've computed intersections already, so
	// we'll start there. We know that at most there will be two disconnected shapes on the planet surface.
	// But there's also a case where exactly one plane slices through the world, and none of the bounding plane
	// intersections do. Thus, if we don't find any of the edge intersection cases, we have to look for that last case.

	// We need to look at single-plane/world intersections.
	// We detect these by looking at the world model and noting its x, y, and z bounds.
	// The cases we are looking for are when the four corner points for any given
	// plane are all outside of the world, AND that plane intersects the world.
	// There are four corner points all told; we must evaluate these WRT the planet surface.
	final boolean minXYminZ = planetModel.pointOutside(minX, Y, minZ);
	final boolean minXYmaxZ = planetModel.pointOutside(minX, Y, maxZ);
	final boolean maxXYminZ = planetModel.pointOutside(maxX, Y, minZ);
	final boolean maxXYmaxZ = planetModel.pointOutside(maxX, Y, maxZ);

	final GeoPoint[] yEdges;
	if (Y - worldMinY >= -Vector.MINIMUM_RESOLUTION && Y - worldMaxY <= Vector.MINIMUM_RESOLUTION &&
	minX < 0.0 && maxX > 0.0 && minZ < 0.0 && maxZ > 0.0 &&
	minXYminZ && minXYmaxZ && maxXYminZ && maxXYmaxZ) {
	// Find any point on the minY plane that intersects the world
	// First construct a perpendicular plane that will allow us to find a sample point.
	// This plane is vertical and goes through the points (0,0,0) and (0,1,0)
	// Then use it to compute a sample point.
	final GeoPoint intPoint = yPlane.getSampleIntersectionPoint(planetModel, yVerticalPlane);
	if (intPoint != null) {
	yEdges = new GeoPoint[]{intPoint};
	} else {
	yEdges = EMPTY_POINTS;
	}
	} else {
	yEdges = EMPTY_POINTS;
	}

	this.edgePoints = glueTogether(minXY, maxXY, YminZ, YmaxZ, yEdges);
	}

	/**
	* Constructor for deserialization.
	* @param planetModel is the planet model.
	* @param inputStream is the input stream.
	*/
	public XdYZSolid(final PlanetModel planetModel, final InputStream inputStream) throws IOException {
	this(planetModel,
	SerializableObject.readDouble(inputStream),
	SerializableObject.readDouble(inputStream),
	SerializableObject.readDouble(inputStream),
	SerializableObject.readDouble(inputStream),
	SerializableObject.readDouble(inputStream));
	}

	@Override
	public void write(final OutputStream outputStream) throws IOException {
	SerializableObject.writeDouble(outputStream, minX);
	SerializableObject.writeDouble(outputStream, maxX);
	SerializableObject.writeDouble(outputStream, Y);
	SerializableObject.writeDouble(outputStream, minZ);
	SerializableObject.writeDouble(outputStream, maxZ);
	}

	@Override
	protected GeoPoint[] getEdgePoints() {
	return edgePoints;
	}

	@Override
	public boolean isWithin(final double x, final double y, final double z) {
	return minXPlane.isWithin(x, y, z) &&
	maxXPlane.isWithin(x, y, z) &&
	yPlane.evaluateIsZero(x, y, z) &&
	minZPlane.isWithin(x, y, z) &&
	maxZPlane.isWithin(x, y, z);
	}

	@Override
	public int getRelationship(final GeoShape path) {
	//System.err.println(this+" getrelationship with "+path);
	final int insideRectangle = isShapeInsideArea(path);
	if (insideRectangle == SOME_INSIDE) {
	//System.err.println(" some inside");
	return OVERLAPS;
	}

	// Figure out if the entire XYZArea is contained by the shape.
	final int insideShape = isAreaInsideShape(path);
	if (insideShape == SOME_INSIDE) {
	return OVERLAPS;
	}

	if (insideRectangle == ALL_INSIDE && insideShape == ALL_INSIDE) {
	//System.err.println(" inside of each other");
	return OVERLAPS;
	}

	if (path.intersects(yPlane, notableYPoints, minXPlane, maxXPlane, minZPlane, maxZPlane)) {
	//System.err.println(" edges intersect");
	return OVERLAPS;
	}

	if (insideRectangle == ALL_INSIDE) {
	//System.err.println(" shape inside rectangle");
	return WITHIN;
	}

	if (insideShape == ALL_INSIDE) {
	//System.err.println(" shape contains rectangle");
	return CONTAINS;
	}
	//System.err.println(" disjoint");
	return DISJOINT;
	}

	@Override
	public boolean equals(Object o) {
	if (!(o instanceof XdYZSolid))
	return false;
	XdYZSolid other = (XdYZSolid) o;
	if (!super.equals(other)) {
	return false;
	}
	return other.minXPlane.equals(minXPlane) &&
	other.maxXPlane.equals(maxXPlane) &&
	other.yPlane.equals(yPlane) &&
	other.minZPlane.equals(minZPlane) &&
	other.maxZPlane.equals(maxZPlane);
	}

	@Override
	public int hashCode() {
	int result = super.hashCode();
	result = 31 * result + minXPlane.hashCode();
	result = 31 * result + maxXPlane.hashCode();
	result = 31 * result + yPlane.hashCode();
	result = 31 * result + minZPlane.hashCode();
	result = 31 * result + maxZPlane.hashCode();
	return result;
	}

	@Override
	public String toString() {
	return "XdYZSolid: {planetmodel="+planetModel+", minXplane="+minXPlane+", maxXplane="+maxXPlane+", yplane="+yPlane+", minZplane="+minZPlane+", maxZplane="+maxZPlane+"}";
	}

	}