Package chunmap.model.relate.relateop

Source Code of chunmap.model.relate.relateop.Point_Polygon

/**
* Copyright (c) 2009-2011, chunquedong(YangJiandong)
*
* This file is part of ChunMap project
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE(Version >=3)
*
* History:
*     2010-05-05  Jed Young  Creation
*/
package chunmap.model.relate.relateop;

import static chunmap.model.relate.IntersectionMatrix.*;
import chunmap.model.geom.GeoPoint;
import chunmap.model.geom.Geometry;
import chunmap.model.geom.Ring;
import chunmap.model.geom.Polygon;
import chunmap.model.relate.ComputeIm;

/**
* disjion,onBoundary,within
*
* @author chunquedong
*
*/
public class Point_Polygon extends ComputeIm {

  public Point_Polygon(GeoPoint p1, Polygon a2) {
    g1 = p1;
    g2 = a2;
  }

  @Override
  protected int inner2innerDim(Geometry g1, Geometry g2) {
    if (im.get(Inner, Border) != EmptyDim) {
      return EmptyDim;
    }

    GeoPoint p1 = (GeoPoint) g1;
    Polygon a2 = (Polygon) g2;
    if (a2.getShell().containIn(p1.getCoordinate())) {
      for (Ring r : a2.getHoles()) {
        if (r.containIn(p1.getCoordinate())) {
          return EmptyDim;
        }
      }
      return PointDim;
    }
    return EmptyDim;
  }

  @Override
  protected boolean within(Geometry g1, Geometry g2) {
    if (im.get(Inner, Border) != EmptyDim)
      return true;
    if (im.get(Inner, Inner) != EmptyDim)
      return true;
    else
      return false;
  }

}
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