geom2d.c File Reference

#include <string.h>
#include <math.h>
#include "pkgeom.h"

Include dependency graph for geom2d.c:

Defines
#define	tol   1.0e-15
Functions
void	SetPoint2d (point2d *p, double x, double y)
void	TransPoint2d (const trans2d *tr, const point2d *p, point2d *q)
void	TransVector2d (const trans2d *tr, const vector2d *v, vector2d *w)
void	Trans2Point3d (const trans2d *tr, const point3d *p, point3d *q)
void	IdentTrans2d (trans2d *tr)
void	CompTrans2d (trans2d *s, trans2d *t, trans2d *u)
void	ShiftTrans2d (trans2d *tr, double tx, double ty)
void	RotTrans2d (trans2d *tr, double angle)
void	ScaleTrans2d (trans2d *t, double sx, double sy)
void	Trans2Shiftd (trans2d *tr, double tx, double ty)
void	Trans2Rotd (trans2d *tr, double angle)
void	Trans2Scaled (trans2d *tr, double sx, double sy)
boolean	InvertTrans2d (trans2d *tr)
void	MultVector2d (double a, const vector2d *v, vector2d *w)
void	SubtractPoints2d (const point2d *p1, const point2d *p2, vector2d *v)
void	AddVector2d (const point2d *p, const vector2d *v, point2d *q)
void	AddVector2Md (const point2d *p, const vector2d *v, double t, point2d *q)
void	InterPoint2d (const point2d *p1, const point2d *p2, double t, point2d *q)
void	MidPoint2d (const point2d *p1, const point2d *p2, point2d *q)
void	Interp3Vectors2d (const vector2d *p0, const vector2d *p1, const vector2d *p2, const double *coeff, vector2d *p)
void	NormalizeVector2d (vector2d *v)
double	DotProduct2d (const vector2d *v1, const vector2d *v2)
double	det2d (const vector2d *v1, const vector2d *v2)
void	OrtVector2d (const vector2d *v1, const vector2d *v2, vector2d *v)
void	ProjectPointOnLine2d (const point2d *p0, const point2d *p1, point2d *q)
double	Point2Distanced (point2d *p, point2d *q)

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Define Documentation

#define tol   1.0e-15

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Function Documentation

void AddVector2d	(	const point2d *	p,
		const vector2d *	v,
		point2d *	q
	)

void AddVector2Md	(	const point2d *	p,
		const vector2d *	v,
		double	t,
		point2d *	q
	)

void CompTrans2d	(	trans2d *	s,
		trans2d *	t,
		trans2d *	u
	)

double det2d	(	const vector2d *	v1,
		const vector2d *	v2
	)

double DotProduct2d	(	const vector2d *	v1,
		const vector2d *	v2
	)

void IdentTrans2d

(

trans2d *

tr

)

void Interp3Vectors2d	(	const vector2d *	p0,
		const vector2d *	p1,
		const vector2d *	p2,
		const double *	coeff,
		vector2d *	p
	)

void InterPoint2d	(	const point2d *	p1,
		const point2d *	p2,
		double	t,
		point2d *	q
	)

boolean InvertTrans2d

(

trans2d *

tr

)

void MidPoint2d	(	const point2d *	p1,
		const point2d *	p2,
		point2d *	q
	)

void MultVector2d	(	double	a,
		const vector2d *	v,
		vector2d *	w
	)

void NormalizeVector2d

(

vector2d *

v

)

void OrtVector2d	(	const vector2d *	v1,
		const vector2d *	v2,
		vector2d *	v
	)

double Point2Distanced	(	point2d *	p,
		point2d *	q
	)

void ProjectPointOnLine2d	(	const point2d *	p0,
		const point2d *	p1,
		point2d *	q
	)

void RotTrans2d	(	trans2d *	tr,
		double	angle
	)

void ScaleTrans2d	(	trans2d *	t,
		double	sx,
		double	sy
	)

void SetPoint2d	(	point2d *	p,
		double	x,
		double	y
	)

void ShiftTrans2d	(	trans2d *	tr,
		double	tx,
		double	ty
	)

void SubtractPoints2d	(	const point2d *	p1,
		const point2d *	p2,
		vector2d *	v
	)

void Trans2Point3d	(	const trans2d *	tr,
		const point3d *	p,
		point3d *	q
	)

void Trans2Rotd	(	trans2d *	tr,
		double	angle
	)

void Trans2Scaled	(	trans2d *	tr,
		double	sx,
		double	sy
	)

void Trans2Shiftd	(	trans2d *	tr,
		double	tx,
		double	ty
	)

void TransPoint2d	(	const trans2d *	tr,
		const point2d *	p,
		point2d *	q
	)

void TransVector2d	(	const trans2d *	tr,
		const vector2d *	v,
		vector2d *	w
	)