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IntPolygon2dC::IntPolygon2dC(void) IntPolygon2dC::IntPolygon2dC(const IntPolygon2dC &) IntPolygon2dC::IntPolygon2dC(const Index2ListC &) IntPolygon2dC::IntPolygon2dC(const DListC &) IntPolygon2dC::IntPolygon2dC(const DListC &) IntPolygon2dC::List(void) const IntPolygon2dC::Area2(void) const IntPolygon2dC::MinimumRectangle(void) const IntPolygon2dC::MyList(void) IntPolygon2dC::operator>>(istream &,IntPolygon2dC &) IntPolygon2dC::operator<<(ostream &,const IntPolygon2dC &)

IntPolygon2dC
An integer polygon in 2d space
include	"amma/IPolyg2.hh"
User Level:	Default
Library:	Mcg2
Example:	exBnd.cc
Section:	Geometry.2-D
In Scope:	std

Comments:
The IntPolygon2dC class is a representation of a polygon in 2 dimensional digital space. A polygon is the region of a plane bounded by a finite collection of line segments forming a simple closed curve.

private Index2ListC

typedef LongIntT AreaT;

polygon area

typedef RealT DAreaT;

non-integer area during computation.

IntPolygon2dC()

Empty polygon.

IntPolygon2dC(const IntPolygon2dC & points)

Another access to the polygon.

IntPolygon2dC(const Index2ListC & points)

Constructs a polygon from a list of points. The 'points' will be shared by the polygon (as a big object).

IntPolygon2dC(const DListC<EdgePtrC> & vertexes)

Construct a polygon from a list of vertexes.

IntPolygon2dC(const DListC<EdgeCPtrC> & vertexes)

Construct a polygon from a list of vertexes. Access to the object model --------------------------

const Index2ListC & List() const

Access to the constant list of vertexes. Derived characteristics of the object -------------------------------------

AreaT Area2() const

Returns twice the signed area of this polygon. Ref.: - O'Rourke,J.: Computatinal geometry in C; Cambridge University Press, 1994, pp. 20-26

IntRectangleTPC MinimumRectangle() const

Returns a minimum enclosing rectangle of this polygon. The polygon must be convex and counter-clockwise oriented.

Index2ListC & MyList()

Returns the reference to the list of indexes.

istream & operator>>(istream & s,IntPolygon2dC & pol)

ostream & operator<<(ostream & s,const IntPolygon2dC & pol)