RegionLine Class Reference

Define a linear region across the surface of the Earth, defined as a series of points. Can turn its defined region into a series of discrete points, and check if a given point is inside the region. More...

#include <geom.h>

Inheritance diagram for RegionLine:

List of all members.

Public Member Functions
	RegionLine ()
	RegionLine (vector< Point * > list)
	RegionLine (Point *p, Point *q)
	RegionLine (string filename)
	~RegionLine ()
double	length ()
vector< Point * >	discrete (double resolution)
bool	contains (Point *p)
void	add (Point *p)
Private Attributes
vector< Point * >	list
	List of all points contained in this linear region.
Friends
ofstream &	operator<< (ofstream &output, const RegionLine &r)
	Output region in "lat\tlon\n..." format.

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Detailed Description

Define a linear region across the surface of the Earth, defined as a series of points. Can turn its defined region into a series of discrete points, and check if a given point is inside the region.

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Constructor & Destructor Documentation

RegionLine::RegionLine

(

)

RegionLine::RegionLine

(

vector< Point * >

list

)

Create new linear region that will contain the given list of points.

Parameters:

list

List of points to include in the new linear region

RegionLine::RegionLine	(	Point *	p,
		Point *	q
	)

Create new linear region that contains only the two given points. Additional points can still be added later if needed.

Parameters:

	p	Starting point for new line
	q	Ending point for new line

RegionLine::RegionLine

(

string

filename

)

Create a new linear region by reading a list of points from a file. Usually used for reading in description of a roadway. Expecting file format to be "lat\tlon\n...-1\t-1\n".

Parameters:

filename

Filename to open and read list of points from

RegionLine::~RegionLine

(

)

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Member Function Documentation

double RegionLine::length

(

)

Calcuate the total length of this linear region

Returns:

Length of linear region in kilometers

vector<Point*> RegionLine::discrete

(

double

resolution

)

[virtual]

Turn the defined linear region into a discrete set of points, using resolution to describe the level of detail. Effectively steps along the line defined in resolution-length steps.

Parameters:

resolution

Level of spacing (detail) between the discrete points to be created. Value in kilometers.

Returns:

List of points that describe this region using the level of resolution requested

Implements Region.

bool RegionLine::contains

(

Point *

p

)

[virtual]

Check if this region contains the given point. Always returns false for line segments.

Parameters:

p

Point to check against

Returns:

Always returns false.

Implements Region.

void RegionLine::add

(

Point *

p

)

[virtual]

Add the given Point to this Region. Will append given point to the end of this line segment.

Parameters:

p

The point to include in this region

Implements Region.

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Friends And Related Function Documentation

ofstream& operator<<	(	ofstream &	output,
		const RegionLine &	r
	)			[friend]

Output region in "lat\tlon\n..." format.

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Member Data Documentation

vector<Point*> RegionLine::list [private]

List of all points contained in this linear region.

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The documentation for this class was generated from the following file:

• geom.h

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