com.funzio.pure2D.geom

Class Line

java.lang.Object

com.funzio.pure2D.geom.Line

public class Line
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Line()

Method Summary

Methods

Modifier and Type	Method and Description
static PointF	getLinesIntersection(PointF p1, PointF p2, PointF p3, PointF p4)
static void	getLinesIntersection(PointF p1, PointF p2, PointF p3, PointF p4, PointF result)
static boolean	linesIntersect(float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4) Detect if 2 line segments intersect.
static PointF	shiftLine(PointF p1, PointF p2, float delta) Find the parallel line that is shifted "delta" units from the given line
static PointF	shiftLine(PointF p1, PointF p2, float delta, float angle) Find the parallel line that is shifted "delta" units from the given line and angle

Methods inherited from class java.lang.Object

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

Constructor Detail

Line

public Line()

Method Detail

getLinesIntersection

public static PointF getLinesIntersection(PointF p1,
                          PointF p2,
                          PointF p3,
                          PointF p4)

Parameters:

p1 -

p2 -

p3 -

p4 -

Returns:

the intersection between 2 lines.

getLinesIntersection

public static void getLinesIntersection(PointF p1,
                        PointF p2,
                        PointF p3,
                        PointF p4,
                        PointF result)

Parameters:

p1 -

p2 -

p3 -

p4 -

result - is the intersection between 2 lines. This is more optimized because it doesn't allocate new PointF.

linesIntersect

public static boolean linesIntersect(float x1,
                     float y1,
                     float x2,
                     float y2,
                     float x3,
                     float y3,
                     float x4,
                     float y4)

Detect if 2 line segments intersect. Copied from java.awt.geom.Line2D

Parameters:

x1 -

y1 -

x2 -

y2 -

x3 -

y3 -

x4 -

y4 -

Returns:

shiftLine

public static PointF shiftLine(PointF p1,
               PointF p2,
               float delta)

Find the parallel line that is shifted "delta" units from the given line

Parameters:

p1 -

p2 -

delta -

Returns:

shiftLine

public static PointF shiftLine(PointF p1,
               PointF p2,
               float delta,
               float angle)

Find the parallel line that is shifted "delta" units from the given line and angle

Parameters:

p1 -

p2 -

angle -

delta -

Returns: