geography
Class StreetSegment

java.lang.Object
  |
  +--geography.StreetSegment

class StreetSegment

extends java.lang.Object

A street segment corresponding to a line in a .map file. This class exists specifically to read the data in .map files. Such files were constructed just for this homework, by taking a simple subset of the TIGER/Line data publicly available from the US Census Bureau. This class is not public. It is only visible within the geography package.

Field Summary

(package private) java.lang.Integer	housenumLeftEnd
(package private) java.lang.Integer	housenumLeftStart House numbers nearest the pStart end of this segment, on the left and right sides.
(package private) java.lang.Integer	housenumRightEnd
(package private) java.lang.Integer	housenumRightStart House numbers nearest the pStart end of this segment, on the left and right sides.
(package private) java.lang.String	name Name of the street, e.g., "N Charles St".
(package private) java.lang.String	nameSuper Base name of the "superstreet" that this is part of, e.g., "Charles St".
(package private) geography.Point	pEnd Physical start and end points of this segment
(package private) geography.Point	pStart Physical start and end points of this segment

Constructor Summary

StreetSegment(geography.StreetSegment ss)
Copy constructor.

StreetSegment(java.lang.String line)
Constructs a StreetSegment from a line in a .map file.

Method Summary

private java.lang.Integer	houseNum(java.lang.String s) Converts a house number string like "323" or "" into an Integer like 323 or null, respectively.
private double	longlat(java.lang.String s) Converts a longitude or latitude string like +39210703 into a double like 39.210703.
geography.StreetSegment	makeSuperStreetSegment()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

name

java.lang.String name

Name of the street, e.g., "N Charles St". May be "" if unknown.

nameSuper

java.lang.String nameSuper

Base name of the "superstreet" that this is part of, e.g., "Charles St". Will be null for most streets.

pStart

geography.Point pStart

Physical start and end points of this segment

pEnd

geography.Point pEnd

Physical start and end points of this segment

housenumLeftStart

java.lang.Integer housenumLeftStart

House numbers nearest the pStart end of this segment, on the left and right sides. Similarly for the pEnd end of this segment. May be null if there are no buildings on that side of the street.

housenumRightStart

java.lang.Integer housenumRightStart

House numbers nearest the pStart end of this segment, on the left and right sides. Similarly for the pEnd end of this segment. May be null if there are no buildings on that side of the street.

housenumLeftEnd

java.lang.Integer housenumLeftEnd

housenumRightEnd

java.lang.Integer housenumRightEnd

Constructor Detail

StreetSegment

public StreetSegment(java.lang.String line)
              throws DataFormatException

Constructs a StreetSegment from a line in a .map file.

StreetSegment

public StreetSegment(geography.StreetSegment ss)

Copy constructor.

Method Detail

makeSuperStreetSegment

public geography.StreetSegment makeSuperStreetSegment()

longlat

private double longlat(java.lang.String s)
                throws java.lang.NumberFormatException

Converts a longitude or latitude string like +39210703 into a double like 39.210703.

java.lang.NumberFormatException

houseNum

private java.lang.Integer houseNum(java.lang.String s)
                            throws java.lang.NumberFormatException

Converts a house number string like "323" or "" into an Integer like 323 or null, respectively. Occasionally a number may be a hyphenated range, like "5916-5900", in which case we arbitrarily take the start of the range, i.e., 5916.

java.lang.NumberFormatException