Point2.h File Reference

#include "common.h"
#include "Vector2.h"
#include <cstring>

Go to the source code of this file.

Classes
struct	GEOM_FADE25D::Func_ltPointXYZ
	Functor to sort points lexicographically. More...
struct	GEOM_FADE25D::Func_samePointXYZ
	Functor to compare two points in 3 dimensions. More...
class	GEOM_FADE25D::Point2
	Point. More...
struct	GEOM_FADE25D::VtxColor

Functions
Point2	GEOM_FADE25D::center (const Point2 &p0, const Point2 &p1)
	Compute the midpoint of p0 and p1. More...
Point2	GEOM_FADE25D::centerWithShift (const Point2 &p0, const Point2 &p1)
	Compute the midpoint of p0 and p1 and adapt it. More...
std::ostream &	GEOM_FADE25D::operator<< (std::ostream &stream, const Point2 &pnt)
	Print to stream.
std::istream &	GEOM_FADE25D::operator>> (std::istream &stream, Point2 &pnt)
	Stream-to-Point.
double	GEOM_FADE25D::sqDistance25D (const double x0, const double y0, const double z0, const Point2 &p1)
	Get the squared distance between two points in 2D. More...
double	GEOM_FADE25D::sqDistance25D (const Point2 &p0, const Point2 &p1)
	Get the squared distance between two points. More...
double	GEOM_FADE25D::sqDistance2D (const double x0, const double y0, const Point2 &p1)
	Get the squared distance between two points in 2D. More...
double	GEOM_FADE25D::sqDistance2D (const Point2 &p0, const Point2 &p1)
	Get the squared distance between two points in 2D. More...

Function Documentation

center()

Point2 GEOM_FADE25D::center ( const Point2 &  p0, const Point2 &  p1  )

inline

Compute the midpoint of p0 and p1.

Note

: The exact midpoint of p0 and p1 may not exist in floating point numbers. Thus the returned point may not be collinear with p0 and p1.

centerWithShift()

Point2 GEOM_FADE25D::centerWithShift	(	const Point2 &	p0,
		const Point2 &	p1
	)

Compute the midpoint of p0 and p1 and adapt it.

Experimental new function that may change in the future. Thought for specific applications.

This function works like center() but additionally it adapts the midpoint to the segment (p0,p1) such that it is 'as collinear as possible' with p0 and p1 in the x/y plane. Bounds for the shift are 0.01 and 1 % of the range in x- and y-direction.

sqDistance25D() [1/2]

double GEOM_FADE25D::sqDistance25D ( const double  x0, const double  y0, const double  z0, const Point2 &  p1  )

inline

Get the squared distance between two points in 2D.

Note

In contrast to sqDistance2D this method uses also the z-coordinate of the points

sqDistance25D() [2/2]

double GEOM_FADE25D::sqDistance25D ( const Point2 &  p0, const Point2 &  p1  )

inline

Get the squared distance between two points.

Note

In contrast to sqDistance2D this method uses also the z-coordinate of the points

sqDistance2D() [1/2]

double GEOM_FADE25D::sqDistance2D ( const double  x0, const double  y0, const Point2 &  p1  )

inline

Get the squared distance between two points in 2D.

Note

This method does not use the z-coordinate

sqDistance2D() [2/2]

double GEOM_FADE25D::sqDistance2D ( const Point2 &  p0, const Point2 &  p1  )

inline

Get the squared distance between two points in 2D.

Note

This method does not use the z-coordinate