com.vividsolutions.jtstest.testbuilder.io.shapefile.PolygonHandler Maven / Gradle / Ivy

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package com.vividsolutions.jtstest.testbuilder.io.shapefile;

import java.io.IOException;
import java.lang.reflect.Array;
import java.util.ArrayList;

import com.vividsolutions.jts.algorithm.CGAlgorithms;
import com.vividsolutions.jts.algorithm.RobustCGAlgorithms;
import com.vividsolutions.jts.geom.*;



/**
 * Wrapper for a Shapefile polygon.
 */
public class PolygonHandler implements ShapeHandler{
    protected static CGAlgorithms cga = new RobustCGAlgorithms();
    int myShapeType;
    
    public PolygonHandler()
    {
        myShapeType = 5;
    }
    
      public PolygonHandler(int type) throws InvalidShapefileException
        {
            if  ( (type != 5) &&  (type != 15) &&  (type != 25) )
                throw new InvalidShapefileException("PolygonHandler constructor - expected type to be 5, 15, or 25.");
            
            myShapeType = type;
    }
    
    //returns true if testPoint is a point in the pointList list.
    boolean pointInList(Coordinate testPoint, Coordinate[] pointList)
    {
        int t, numpoints;
        Coordinate  p;
        
        numpoints = Array.getLength( pointList) ;
        for (t=0;t= 15)
        {
          //  int fullLength = 22 + (2*numParts) + (8*numPoints) + 8 + (4*numPoints)+ 8 + (4*numPoints);
          int fullLength;
          if (myShapeType == 15)
          {
          		//polyZ (with M)
			    fullLength = 22 + (2*numParts) + (8*numPoints) + 8 + (4*numPoints)+ 8 + (4*numPoints);         	
          }
          else
          {
          		//polyM (with M)
				fullLength = 22 + (2*numParts) + (8*numPoints) + 8+ (4*numPoints) ;
          }
            if (contentLength >= fullLength)
            {
                    file.readDoubleLE();  //mmin
                    file.readDoubleLE();  //mmax
					actualReadWords += 8;
                    for(int t=0;t zmax)
                        zmax = z;
                }
                else
                {
                    validZFound = true;
                    zmin =  z ;
                    zmax =  z ;
                }
            }
           
        }
        
        result[0] = (zmin);
        result[1] = (zmax);
        return result;
        
    }
    
    
}

/*
 * $Log: PolygonHandler.java,v $
 * Revision 1.1  2009/10/14 04:21:22  mbdavis
 * added drag-n-drop for reading shp files
 *
 * Revision 1.5  2003/09/23 17:15:26  dblasby
 * *** empty log message ***
 *
 * Revision 1.4  2003/07/25 18:49:15  dblasby
 * Allow "extra" data after the content.  Fixes the ICI shapefile bug.
 *
 * Revision 1.3  2003/02/04 02:10:37  jaquino
 * Feature: EditWMSQuery dialog
 *
 * Revision 1.2  2003/01/22 18:31:05  jaquino
 * Enh: Make About Box configurable
 *
 * Revision 1.2  2002/09/09 20:46:22  dblasby
 * Removed LEDatastream refs and replaced with EndianData[in/out]putstream
 *
 * Revision 1.1  2002/08/27 21:04:58  dblasby
 * orginal
 *
 * Revision 1.3  2002/03/05 10:51:01  andyt
 * removed use of factory from write method
 *
 * Revision 1.2  2002/03/05 10:23:59  jmacgill
 * made sure geometries were created using the factory methods
 *
 * Revision 1.1  2002/02/28 00:38:50  jmacgill
 * Renamed files to more intuitve names
 *
 * Revision 1.4  2002/02/13 00:23:53  jmacgill
 * First semi working JTS version of Shapefile code
 *
 * Revision 1.3  2002/02/11 18:44:22  jmacgill
 * replaced geometry constructions with calls to geometryFactory.createX methods
 *
 * Revision 1.2  2002/02/11 18:28:41  jmacgill
 * rewrote to have static read and write methods
 *
 * Revision 1.1  2002/02/11 16:54:43  jmacgill
 * added shapefile code and directories
 *
 */