org.gvsig.euclidean

Class DefaultEuclideanManager

java.lang.Object

org.gvsig.euclidean.DefaultEuclideanManager

All Implemented Interfaces:

EuclideanManager

public class DefaultEuclideanManager
extends java.lang.Object
implements EuclideanManager

Constructor Summary

Constructors

Constructor and Description
DefaultEuclideanManager()

Method Summary

Modifier and Type	Method and Description
boolean	areThreePointsInLine(double ax, double ay, double bx, double by, double cx, double cy)
double	calculateAngle(double vertexx, double vertexy, double px, double py) Find the angle in the counterclockwise direction between the horizontal line and point p relative to the vertex
double	calculateAngle(double vertexx, double vertexy, double p1x, double p1y, double p2x, double p2y) Calculate the angle between points p1 and p2 with vertex at vertex point
EuclideanLine2D	createLine2D(double m, double b)
EuclideanLine2D	createLine2D(double coefA, double coefB, double coefC)
EuclideanLine2D	createLine2D(double x0, double y0, double x1, double y1)
EuclideanLine2D	createLine2D(double m, java.awt.geom.Point2D p)
EuclideanLine2D	createLine2D(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
double	distance(double x1, double y1, double x2, double y2) Gets the distance between two points
double	distance(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2) Gets the distance between two points
java.awt.geom.Point2D	getCenter(double ax, double ay, double bx, double by, double cx, double cy) Gets center point of three points.
java.awt.geom.Point2D	getCenter(java.awt.geom.Point2D a, java.awt.geom.Point2D b, java.awt.geom.Point2D c) Gets center point of three points.
double	getCoefDirection(double centerx, double centery, double point1x, double point1y, double point2x, double point2y) Returns the coefficient that expresses the direction in which the angle with vertex at center a and from point1 to point2 is beaten coefDirection >= 0 then the direction is CCW else the direction is CW
double	getCoefDirection(java.awt.geom.Point2D center, java.awt.geom.Point2D point1, java.awt.geom.Point2D point2) Returns the coefficient that expresses the direction in which the angle with vertex at center a and from point1 to point2 is beaten coefDirection >= 0 then the direction is CCW else the direction is CW
java.awt.geom.Point2D	getMidPoint(double ax, double ay, double bx, double by) Gets midpoint of two points
java.awt.geom.Point2D	getMidPoint(java.awt.geom.Point2D a, java.awt.geom.Point2D b) Gets midpoint of two points
java.awt.geom.Point2D	getPointAtDistance(double x1, double y1, double distance, double angle, java.lang.String unit)
double	getYIntercept(double m, double x, double y)
double	getYIntercept(double m, java.awt.geom.Point2D p)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultEuclideanManager

public DefaultEuclideanManager()

Method Detail

createLine2D

public EuclideanLine2D createLine2D(double coefA,
                                    double coefB,
                                    double coefC)

Specified by:

createLine2D in interface EuclideanManager

createLine2D

public EuclideanLine2D createLine2D(double m,
                                    double b)

Specified by:

createLine2D in interface EuclideanManager

createLine2D

public EuclideanLine2D createLine2D(double x0,
                                    double y0,
                                    double x1,
                                    double y1)

Specified by:

createLine2D in interface EuclideanManager

createLine2D

public EuclideanLine2D createLine2D(java.awt.geom.Point2D p1,
                                    java.awt.geom.Point2D p2)

Specified by:

createLine2D in interface EuclideanManager

createLine2D

public EuclideanLine2D createLine2D(double m,
                                    java.awt.geom.Point2D p)

Specified by:

createLine2D in interface EuclideanManager

getYIntercept

public double getYIntercept(double m,
                            java.awt.geom.Point2D p)

Specified by:

getYIntercept in interface EuclideanManager

getYIntercept

public double getYIntercept(double m,
                            double x,
                            double y)

Specified by:

getYIntercept in interface EuclideanManager

distance

public double distance(java.awt.geom.Point2D p1,
                       java.awt.geom.Point2D p2)

Description copied from interface: EuclideanManager

Gets the distance between two points

Specified by:

distance in interface EuclideanManager

Parameters:

p1 - Point one

p2 - Point two

Returns:

distance

public double distance(double x1,
                       double y1,
                       double x2,
                       double y2)

Description copied from interface: EuclideanManager

Gets the distance between two points

Specified by:

distance in interface EuclideanManager

Parameters:

x1 - x of point one

y1 - y of point one

x2 - x of point two

y2 - y of point two

Returns:

getCenter

public java.awt.geom.Point2D getCenter(double ax,
                                       double ay,
                                       double bx,
                                       double by,
                                       double cx,
                                       double cy)

Description copied from interface: EuclideanManager

Gets center point of three points.

Specified by:

getCenter in interface EuclideanManager

Parameters:

ax - x of point one

ay - y of point one

bx - x of point two

by - y of point two

cx - x of point three

cy - y of point three

Returns:

Point center.

getCenter

public java.awt.geom.Point2D getCenter(java.awt.geom.Point2D a,
                                       java.awt.geom.Point2D b,
                                       java.awt.geom.Point2D c)

Description copied from interface: EuclideanManager

Gets center point of three points.

Specified by:

getCenter in interface EuclideanManager

Parameters:

a - Point one

b - Point two

c - Point three

Returns:

Point center.

getMidPoint

public java.awt.geom.Point2D getMidPoint(java.awt.geom.Point2D a,
                                         java.awt.geom.Point2D b)

Description copied from interface: EuclideanManager

Gets midpoint of two points

Specified by:

getMidPoint in interface EuclideanManager

Parameters:

a - Point one

b - Point two

Returns:

Mid point of points.

getMidPoint

public java.awt.geom.Point2D getMidPoint(double ax,
                                         double ay,
                                         double bx,
                                         double by)

Description copied from interface: EuclideanManager

Gets midpoint of two points

Specified by:

getMidPoint in interface EuclideanManager

Parameters:

ax - x of point one

ay - y of point one

bx - x of point two

by - y of point two

Returns:

Mid point of points.

getCoefDirection

public double getCoefDirection(double centerx,
                               double centery,
                               double point1x,
                               double point1y,
                               double point2x,
                               double point2y)

Description copied from interface: EuclideanManager

Returns the coefficient that expresses the direction in which the angle with vertex at center a and from point1 to point2 is beaten coefDirection >= 0 then the direction is CCW else the direction is CW

Specified by:

getCoefDirection in interface EuclideanManager

Returns:

getCoefDirection

public double getCoefDirection(java.awt.geom.Point2D center,
                               java.awt.geom.Point2D point1,
                               java.awt.geom.Point2D point2)

Description copied from interface: EuclideanManager

Returns the coefficient that expresses the direction in which the angle with vertex at center a and from point1 to point2 is beaten coefDirection >= 0 then the direction is CCW else the direction is CW

Specified by:

getCoefDirection in interface EuclideanManager

Returns:

calculateAngle

public double calculateAngle(double vertexx,
                             double vertexy,
                             double p1x,
                             double p1y,
                             double p2x,
                             double p2y)

Description copied from interface: EuclideanManager

Calculate the angle between points p1 and p2 with vertex at vertex point

Specified by:

calculateAngle in interface EuclideanManager

Returns:

calculateAngle

public double calculateAngle(double vertexx,
                             double vertexy,
                             double px,
                             double py)

Description copied from interface: EuclideanManager

Find the angle in the counterclockwise direction between the horizontal line and point p relative to the vertex

Specified by:

calculateAngle in interface EuclideanManager

Returns:

areThreePointsInLine

public boolean areThreePointsInLine(double ax,
                                    double ay,
                                    double bx,
                                    double by,
                                    double cx,
                                    double cy)

Specified by:

areThreePointsInLine in interface EuclideanManager

getPointAtDistance

public java.awt.geom.Point2D getPointAtDistance(double x1,
                                                double y1,
                                                double distance,
                                                double angle,
                                                java.lang.String unit)

Specified by:

getPointAtDistance in interface EuclideanManager