public class ShapeUtilities
extends java.lang.Object
Shape
objects.Modifier and Type | Method and Description |
---|---|
static boolean |
contains(java.awt.geom.Rectangle2D rect1,
java.awt.geom.Rectangle2D rect2)
Checks, whether the given rectangle1 fully contains rectangle 2
(even if rectangle 2 has a height or width of zero!).
|
static java.awt.Shape |
createDiagonalCross(float l,
float t)
Creates a diagonal cross shape.
|
static java.awt.Shape |
createDiamond(float s)
Creates a diamond shape.
|
static java.awt.Shape |
createDownTriangle(float s)
Creates a triangle shape that points downwards.
|
static java.awt.Shape |
createLineRegion(java.awt.geom.Line2D line,
float width)
Creates a region surrounding a line segment by 'widening' the line
segment.
|
static java.awt.Shape |
createRegularCross(float l,
float t)
Creates a diagonal cross shape.
|
static java.awt.Shape |
createTranslatedShape(java.awt.Shape shape,
double transX,
double transY)
Creates and returns a translated shape.
|
static java.awt.Shape |
createUpTriangle(float s)
Creates a triangle shape that points upwards.
|
static boolean |
equal(java.awt.geom.Arc2D a1,
java.awt.geom.Arc2D a2)
Compares two arcs and returns
true if they are equal or
both null . |
static boolean |
equal(java.awt.geom.Ellipse2D e1,
java.awt.geom.Ellipse2D e2)
Compares two ellipses and returns
true if they are equal or
both null . |
static boolean |
equal(java.awt.geom.GeneralPath p1,
java.awt.geom.GeneralPath p2)
Tests two polygons for equality.
|
static boolean |
equal(java.awt.geom.Line2D l1,
java.awt.geom.Line2D l2)
Compares two lines are returns
true if they are equal or
both null . |
static boolean |
equal(java.awt.Polygon p1,
java.awt.Polygon p2)
Tests two polygons for equality.
|
static java.awt.geom.Point2D |
getPointInRectangle(double x,
double y,
java.awt.geom.Rectangle2D area)
Returns a point based on (x, y) but constrained to be within the bounds
of a given rectangle.
|
static boolean |
intersects(java.awt.geom.Rectangle2D rect1,
java.awt.geom.Rectangle2D rect2)
Checks, whether the given rectangle1 fully contains rectangle 2
(even if rectangle 2 has a height or width of zero!).
|
static java.awt.Shape |
rotateShape(java.awt.Shape base,
double angle,
float x,
float y)
Rotates a shape about the specified coordinates.
|
public static boolean equal(java.awt.geom.Line2D l1, java.awt.geom.Line2D l2)
true
if they are equal or
both null
.l1
- the first line (null
permitted).l2
- the second line (null
permitted).public static boolean equal(java.awt.geom.Ellipse2D e1, java.awt.geom.Ellipse2D e2)
true
if they are equal or
both null
.e1
- the first ellipse (null
permitted).e2
- the second ellipse (null
permitted).public static boolean equal(java.awt.geom.Arc2D a1, java.awt.geom.Arc2D a2)
true
if they are equal or
both null
.a1
- the first arc (null
permitted).a2
- the second arc (null
permitted).public static boolean equal(java.awt.Polygon p1, java.awt.Polygon p2)
null
this
method returns true
.p1
- polygon 1 (null
permitted).p2
- polygon 2 (null
permitted).public static boolean equal(java.awt.geom.GeneralPath p1, java.awt.geom.GeneralPath p2)
null
this
method returns true
.p1
- path 1 (null
permitted).p2
- path 2 (null
permitted).public static java.awt.Shape createTranslatedShape(java.awt.Shape shape, double transX, double transY)
shape
- the shape (null
not permitted).transX
- the x translation (in Java2D space).transY
- the y translation (in Java2D space).public static java.awt.Shape rotateShape(java.awt.Shape base, double angle, float x, float y)
base
- the shape (null
permitted, returns
null
).angle
- the angle (in radians).x
- the x coordinate for the rotation point (in Java2D space).y
- the y coordinate for the rotation point (in Java2D space).public static java.awt.Shape createDiagonalCross(float l, float t)
l
- the length of each 'arm'.t
- the thickness.public static java.awt.Shape createRegularCross(float l, float t)
l
- the length of each 'arm'.t
- the thickness.public static java.awt.Shape createDiamond(float s)
s
- the size factor (equal to half the height of the diamond).public static java.awt.Shape createUpTriangle(float s)
s
- the size factor (equal to half the height of the triangle).public static java.awt.Shape createDownTriangle(float s)
s
- the size factor (equal to half the height of the triangle).public static java.awt.Shape createLineRegion(java.awt.geom.Line2D line, float width)
line
- the line (null
not permitted).width
- the width of the region.public static java.awt.geom.Point2D getPointInRectangle(double x, double y, java.awt.geom.Rectangle2D area)
x
- the x-coordinate.y
- the y-coordinate.area
- the constraining rectangle (null
not
permitted).java.lang.NullPointerException
- if area
is null
.public static boolean contains(java.awt.geom.Rectangle2D rect1, java.awt.geom.Rectangle2D rect2)
rect1
- the first rectangle.rect2
- the second rectangle.public static boolean intersects(java.awt.geom.Rectangle2D rect1, java.awt.geom.Rectangle2D rect2)
rect1
- the first rectangle.rect2
- the second rectangle.RH, 2017