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PL/SQL Determine if the coordinates of a point is within four points
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QwtPointPolar(3) Qwt User's Guide QwtPointPolar(3) NAME
QwtPointPolar - A point in polar coordinates. SYNOPSIS
#include <qwt_point_polar.h> Public Member Functions QwtPointPolar () QwtPointPolar (double azimuth, double radius) QwtPointPolar (const QwtPointPolar &) QwtPointPolar (const QPointF &) void setPoint (const QPointF &) QPointF toPoint () const bool isValid () const bool isNull () const double radius () const double azimuth () const double & rRadius () double & rAzimuth () void setRadius (double) void setAzimuth (double) bool operator== (const QwtPointPolar &) const bool operator!= (const QwtPointPolar &) const QwtPointPolar normalized () const Detailed Description A point in polar coordinates. In polar coordinates a point is determined by an angle and a distance. See http://en.wikipedia.org/wiki/Polar_coordinate_system Constructor &; Destructor Documentation QwtPointPolar::QwtPointPolar () [inline] Constructs a null point, with a radius and azimuth set to 0.0. See also: QPointF::isNull QwtPointPolar::QwtPointPolar (doubleazimuth, doubleradius) [inline] Constructs a point with coordinates specified by radius and azimuth. Parameters: azimuth Azimuth radius Radius QwtPointPolar::QwtPointPolar (const QwtPointPolar &other) [inline] Constructs a point using the values of the point specified. Parameters: other Other point QwtPointPolar::QwtPointPolar (const QPointF &p) Convert and assign values from a point in Cartesian coordinates Parameters: p Point in Cartesian coordinates See also: setPoint(), toPoint() Member Function Documentation double QwtPointPolar::azimuth () const [inline] Returns the azimuth. bool QwtPointPolar::isNull () const [inline] Returns true if radius() >= 0.0. bool QwtPointPolar::isValid () const [inline] Returns true if radius() >= 0.0. QwtPointPolar QwtPointPolar::normalized () const Normalize radius and azimuth When the radius is < 0.0 it is set to 0.0. The azimuth is a value >= 0.0 and < 2 * M_PI. bool QwtPointPolar::operator!= (const QwtPointPolar &other) const Returns true if point1 is not equal to point2; otherwise returns false. Two points are equal to each other if radius and azimuth-coordinates are the same. Points are not equal, when the azimuth differs, but other.azimuth() == azimuth() % (2 * PI). See also: normalized() bool QwtPointPolar::operator== (const QwtPointPolar &other) const Returns true if point1 is equal to point2; otherwise returns false. Two points are equal to each other if radius and azimuth-coordinates are the same. Points are not equal, when the azimuth differs, but other.azimuth() == azimuth() % (2 * PI). See also: normalized() double QwtPointPolar::radius () const [inline] Returns the radius. double & QwtPointPolar::rAzimuth () [inline] Returns the azimuth. double & QwtPointPolar::rRadius () [inline] Returns the radius. void QwtPointPolar::setAzimuth (doubleazimuth) [inline] Sets the atimuth to atimuth. void QwtPointPolar::setPoint (const QPointF &p) Convert and assign values from a point in Cartesian coordinates Parameters: p Point in Cartesian coordinates void QwtPointPolar::setRadius (doubleradius) [inline] Sets the radius to radius. QPointF QwtPointPolar::toPoint () const Convert and return values in Cartesian coordinates Note: Invalid or null points will be returned as QPointF(0.0, 0.0) See also: isValid(), isNull() Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 6.0.0 Fri Apr 15 2011 QwtPointPolar(3)
