AbstractLine Class Reference

An Object class that is the base of the line-like Object's: Segment, Line and Ray. More...

Inheritance diagram for AbstractLine:

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Collaboration diagram for AbstractLine:

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List of all members.

Public Member Functions
double	slope () const
	Get the slope of this AbstractLine.
const QString	equationString () const
	Get a string containing the equation of this line in the form "y = a * x + b ".
LineData	data () const
	Get the LineData for this AbstractLine.
bool	equals (const Object &rhs) const
	Returns true if this Object is equal to rhs.
Static Public Member Functions
static const ObjectType *	stype ()
	Returns the ObjectType representing the AbstractLine type.

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Detailed Description

An Object class that is the base of the line-like Object's: Segment, Line and Ray.

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Member Function Documentation

static const ObjectType* AbstractLine::stype

(

)

[static]

Returns the ObjectType representing the AbstractLine type.

Reimplemented from Curve.

Reimplemented in Segment, Ray, and Line.

double AbstractLine::slope

(

)

const

Get the slope of this AbstractLine.

. For a line through points a( xa, ya ) and b ( xb, yb ), this means the value ( yb - ya ) / ( xb - xa ).

bool AbstractLine::equals

(

const Object &

rhs

)

const [virtual]

Returns true if this Object is equal to rhs.

This function checks whether rhs is of the same Object type, and whether it contains the same data as this Object.

Implements Object.