PolyshapeReader.XReader Class Reference

from Apache 2.0 licensed: https://github.com/googlemaps/android-maps-utils/blob/master/library/src/com/google/maps/android/PolyUtil.java More...

Collaboration diagram for PolyshapeReader.XReader:

Public Member Functions
	XReader (final Reader input, GeometryFactory shpFactory) throws IOException
Coordinate []	readPoints () throws IOException
double	readLat () throws IOException
double	readLng () throws IOException
double	readDouble () throws IOException
int	peek ()
char	readKey () throws IOException
boolean	isData ()
boolean	isDone ()
boolean	isEvent ()

Package Functions
int	readInt () throws IOException

Package Attributes
int	lat = 0
int	lng = 0
int	head = -1
final Reader	input
final GeometryFactory	shpFactory

Detailed Description

from Apache 2.0 licensed: https://github.com/googlemaps/android-maps-utils/blob/master/library/src/com/google/maps/android/PolyUtil.java

Constructor & Destructor Documentation

XReader()

XReader	(	final Reader	input,
		GeometryFactory	shpFactory
	)		throws IOException

References PolyshapeReader.XReader.input, and PolyshapeReader.XReader.shpFactory.

                                                                                      {
      this.input = input;
      this.shpFactory = shpFactory;
      head = input.read();
    }

Member Function Documentation

isData()

boolean isData

(

)

Referenced by PolyshapeReader.XReader.readPoints().

                            {
      return head >= '?';
    }

isDone()

boolean isDone

(

)

Referenced by PolyshapeReader.read().

                            {
      return head < 0;
    }

isEvent()

boolean isEvent

(

)

Referenced by PolyshapeReader.read().

                             {
      return head > 0 && head < '?';
    }

peek()

int peek

(

)

References PolyshapeReader.XReader.head.

Referenced by PolyshapeReader.read().

                      {
      return head;
    }

readDouble()

double readDouble

(

)

throws IOException

References PolyshapeReader.XReader.readInt().

Referenced by PolyshapeReader.read().

                                                  {
      return readInt() * 1e-5;
    }

readInt()

int readInt ( ) throws IOException

package

Referenced by PolyshapeReader.XReader.readDouble(), PolyshapeReader.XReader.readLat(), and PolyshapeReader.XReader.readLng().

    {
      int b;
      int result = 1;
      int shift = 0;
      do {
        b = head - 63 - 1;
        result += b << shift;
        shift += 5;
        
        head = input.read();
      } while (b >= 0x1f);
      return (result & 1) != 0 ? ~(result >> 1) : (result >> 1);
    }

readKey()

char readKey

(

)

throws IOException

Referenced by PolyshapeReader.read().

                                             {
      lat = lng = 0; // reset the offset
      char key = (char)head;
      head = input.read();
      return key;
    }

readLat()

double readLat

(

)

throws IOException

References PolyshapeReader.XReader.readInt().

Referenced by PolyshapeReader.read(), and PolyshapeReader.XReader.readPoints().

                                               {
      lat += readInt();
      return lat * 1e-5;
    }

readLng()

double readLng

(

)

throws IOException

References PolyshapeReader.XReader.readInt().

Referenced by PolyshapeReader.read(), and PolyshapeReader.XReader.readPoints().

                                               {
      lng += readInt();
      return lng * 1e-5;
    }

readPoints()

Coordinate [] readPoints

(

)

throws IOException

References PolyshapeReader.XReader.isData(), PolyshapeReader.XReader.readLat(), and PolyshapeReader.XReader.readLng().

Referenced by PolyshapeReader.read().

                                                        {
      List<Coordinate> coords=new ArrayList<Coordinate>();
      while(isData()) {
          coords.add(new Coordinate(readLat(),readLng()));
      }
      return coords.toArray(new Coordinate[0]);
    }

Member Data Documentation

head

int head = -1

package

Referenced by PolyshapeReader.XReader.peek().

input

final Reader input

package

Referenced by PolyshapeReader.XReader.XReader().

lat

int lat = 0

package

lng

int lng = 0

package

shpFactory

final GeometryFactory shpFactory

package

Referenced by PolyshapeReader.XReader.XReader().