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java.lang.Objectorg.jfree.util.ShapeUtilities
public class ShapeUtilities
Utility methods for Shape
objects.
Method Summary | |
---|---|
static Shape |
clone(Shape shape)
Returns a clone of the specified shape, or null . |
static boolean |
contains(Rectangle2D rect1,
Rectangle2D rect2)
Checks, whether the given rectangle1 fully contains rectangle 2 (even if rectangle 2 has a height or width of zero!). |
static Shape |
createDiagonalCross(float l,
float t)
Creates a diagonal cross shape. |
static Shape |
createDiamond(float s)
Creates a diamond shape. |
static Shape |
createDownTriangle(float s)
Creates a triangle shape that points downwards. |
static Shape |
createLineRegion(Line2D line,
float width)
Creates a region surrounding a line segment by 'widening' the line segment. |
static Shape |
createRegularCross(float l,
float t)
Creates a diagonal cross shape. |
static Shape |
createTranslatedShape(Shape shape,
double transX,
double transY)
Creates and returns a translated shape. |
static Shape |
createTranslatedShape(Shape shape,
RectangleAnchor anchor,
double locationX,
double locationY)
Translates a shape to a new location such that the anchor point (relative to the rectangular bounds of the shape) aligns with the specified (x, y) coordinate in Java2D space. |
static Shape |
createUpTriangle(float s)
Creates a triangle shape that points upwards. |
static void |
drawRotatedShape(Graphics2D g2,
Shape shape,
double angle,
float x,
float y)
Draws a shape with the specified rotation about (x, y) . |
static boolean |
equal(Arc2D a1,
Arc2D a2)
Compares two arcs and returns true if they are equal or
both null . |
static boolean |
equal(Ellipse2D e1,
Ellipse2D e2)
Compares two ellipses and returns true if they are equal or
both null . |
static boolean |
equal(GeneralPath p1,
GeneralPath p2)
Tests two polygons for equality. |
static boolean |
equal(Line2D l1,
Line2D l2)
Compares two lines are returns true if they are equal or
both null . |
static boolean |
equal(Polygon p1,
Polygon p2)
Tests two polygons for equality. |
static boolean |
equal(Shape s1,
Shape s2)
Tests two shapes for equality. |
static Point2D |
getPointInRectangle(double x,
double y,
Rectangle2D area)
Returns a point based on (x, y) but constrained to be within the bounds of a given rectangle. |
static boolean |
intersects(Rectangle2D rect1,
Rectangle2D rect2)
Checks, whether the given rectangle1 fully contains rectangle 2 (even if rectangle 2 has a height or width of zero!). |
static Shape |
rotateShape(Shape base,
double angle,
float x,
float y)
Rotates a shape about the specified coordinates. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
---|
public static Shape clone(Shape shape)
null
. At the
current time, this method supports cloning for instances of
Line2D
, RectangularShape
, Area
and GeneralPath
.
RectangularShape
includes Arc2D
,
Ellipse2D
, Rectangle2D
,
RoundRectangle2D
.
shape
- the shape to clone (null
permitted,
returns null
).
null
.public static boolean equal(Shape s1, Shape s2)
null
,
this method will return true
.
In the current implementation, the following shapes are supported:
Ellipse2D
, Line2D
and Rectangle2D
(implicit).
s1
- the first shape (null
permitted).s2
- the second shape (null
permitted).
public static boolean equal(Line2D l1, 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(Ellipse2D e1, 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(Arc2D a1, 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(Polygon p1, Polygon p2)
null
this
method returns true
.
p1
- polygon 1 (null
permitted).p2
- polygon 2 (null
permitted).
public static boolean equal(GeneralPath p1, GeneralPath p2)
null
this
method returns true
.
p1
- path 1 (null
permitted).p2
- path 2 (null
permitted).
public static Shape createTranslatedShape(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 Shape createTranslatedShape(Shape shape, RectangleAnchor anchor, double locationX, double locationY)
shape
- the shape (null
not permitted).anchor
- the anchor (null
not permitted).locationX
- the x-coordinate (in Java2D space).locationY
- the y-coordinate (in Java2D space).
public static Shape rotateShape(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 void drawRotatedShape(Graphics2D g2, Shape shape, double angle, float x, float y)
(x, y)
.
g2
- the graphics device (null
not permitted).shape
- the shape (null
not permitted).angle
- the angle (in radians).x
- the x coordinate for the rotation point.y
- the y coordinate for the rotation point.public static Shape createDiagonalCross(float l, float t)
l
- the length of each 'arm'.t
- the thickness.
public static Shape createRegularCross(float l, float t)
l
- the length of each 'arm'.t
- the thickness.
public static Shape createDiamond(float s)
s
- the size factor (equal to half the height of the diamond).
public static Shape createUpTriangle(float s)
s
- the size factor (equal to half the height of the triangle).
public static Shape createDownTriangle(float s)
s
- the size factor (equal to half the height of the triangle).
public static Shape createLineRegion(Line2D line, float width)
line
- the line (null
not permitted).width
- the width of the region.
public static Point2D getPointInRectangle(double x, double y, Rectangle2D area)
x
- the x-coordinate.y
- the y-coordinate.area
- the constraining rectangle (null
not
permitted).
NullPointerException
- if area
is null
.public static boolean contains(Rectangle2D rect1, Rectangle2D rect2)
rect1
- the first rectangle.rect2
- the second rectangle.
public static boolean intersects(Rectangle2D rect1, Rectangle2D rect2)
rect1
- the first rectangle.rect2
- the second rectangle.
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