ipe::Angle Class Reference

#include <ipegeo.h>

Public Member Functions
	Angle ()
	Angle (double alpha)
	operator double () const
double	degrees () const
Angle	normalize (double lowlimit)
bool	liesBetween (Angle small, Angle large) const

Static Public Member Functions
static Angle	Degrees (double alpha)

Detailed Description

A double that's an angle.

An Angle is really nothing more than a double. Having a separate type is sometimes useful, for instance in the Vector constructor, and this class serves as the right place for a few utility functions. It also makes it clear whether a value is in radians or in degrees.

Constructor & Destructor Documentation

Angle() [1/2]

ipe::Angle::Angle ( )

inlineexplicit

Construct uninitialized angle.

Referenced by Degrees().

Angle() [2/2]

ipe::Angle::Angle ( double  alpha )

inline

Construct an angle (in radians).

Member Function Documentation

Degrees()

static Angle ipe::Angle::Degrees ( double  alpha )

inlinestatic

Construct an angle in degrees.

References Angle().

Referenced by ipe::ImlParser::parseStyle().

operator double()

ipe::Angle::operator double ( ) const

inline

Return value (in radians).

degrees()

double Angle::degrees

(

)

const

Referenced by ipe::StyleSheet::saveAsXml().

normalize()

Angle Angle::normalize

(

double

lowlimit

)

Normalize the value to the range lowlimit .. lowlimit + 2 pi.

This Angle object is modified, a copy is returned.

Referenced by ipe::Painter::doDrawArc(), ipe::Snap::getLine(), and liesBetween().

liesBetween()

bool Angle::liesBetween	(	Angle	small,
		Angle	large
	)		const

When considering the positively oriented circle arc from angle small to large, does it cover this angle?

References normalize().

Referenced by ipe::Arc::bbox(), ipe::Arc::distance(), and ipe::Arc::intersect().

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

• ipegeo.h
• ipegeo.cpp