BasicStroke (Java Platform SE 8 )

java.lang.Object
- java.awt.BasicStroke

All Implemented Interfaces:

Stroke
```
public class BasicStroke
extends Object
implements Stroke
```
The BasicStroke class defines a basic set of rendering attributes for the outlines of graphics primitives, which are rendered with a Graphics2D object that has its Stroke attribute set to this BasicStroke. The rendering attributes defined by BasicStroke describe the shape of the mark made by a pen drawn along the outline of a Shape and the decorations applied at the ends and joins of path segments of the Shape. These rendering attributes include:

width
The pen width, measured perpendicularly to the pen trajectory.
end caps
The decoration applied to the ends of unclosed subpaths and dash segments. Subpaths that start and end on the same point are still considered unclosed if they do not have a CLOSE segment. See SEG_CLOSE for more information on the CLOSE segment. The three different decorations are: CAP_BUTT, CAP_ROUND, and CAP_SQUARE.
line joins
The decoration applied at the intersection of two path segments and at the intersection of the endpoints of a subpath that is closed using SEG_CLOSE. The three different decorations are: JOIN_BEVEL, JOIN_MITER, and JOIN_ROUND.
miter limit
The limit to trim a line join that has a JOIN_MITER decoration. A line join is trimmed when the ratio of miter length to stroke width is greater than the miterlimit value. The miter length is the diagonal length of the miter, which is the distance between the inside corner and the outside corner of the intersection. The smaller the angle formed by two line segments, the longer the miter length and the sharper the angle of intersection. The default miterlimit value of 10.0f causes all angles less than 11 degrees to be trimmed. Trimming miters converts the decoration of the line join to bevel.
dash attributes
The definition of how to make a dash pattern by alternating between opaque and transparent sections.
All attributes that specify measurements and distances controlling the shape of the returned outline are measured in the same coordinate system as the original unstroked Shape argument. When a Graphics2D object uses a Stroke object to redefine a path during the execution of one of its draw methods, the geometry is supplied in its original form before the Graphics2D transform attribute is applied. Therefore, attributes such as the pen width are interpreted in the user space coordinate system of the Graphics2D object and are subject to the scaling and shearing effects of the user-space-to-device-space transform in that particular Graphics2D. For example, the width of a rendered shape's outline is determined not only by the width attribute of this BasicStroke, but also by the transform attribute of the Graphics2D object. Consider this code:
// sets the Graphics2D object's Transform attribute g2d.scale(10, 10); // sets the Graphics2D object's Stroke attribute g2d.setStroke(new BasicStroke(1.5f));
Assuming there are no other scaling transforms added to the Graphics2D object, the resulting line will be approximately 15 pixels wide. As the example code demonstrates, a floating-point line offers better precision, especially when large transforms are used with a Graphics2D object. When a line is diagonal, the exact width depends on how the rendering pipeline chooses which pixels to fill as it traces the theoretical widened outline. The choice of which pixels to turn on is affected by the antialiasing attribute because the antialiasing rendering pipeline can choose to color partially-covered pixels.
For more information on the user space coordinate system and the rendering process, see the Graphics2D class comments.

See Also:

Graphics2D

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`CAP_BUTT`	Ends unclosed subpaths and dash segments with no added decoration.
`static int`	`CAP_ROUND`	Ends unclosed subpaths and dash segments with a round decoration that has a radius equal to half of the width of the pen.
`static int`	`CAP_SQUARE`	Ends unclosed subpaths and dash segments with a square projection that extends beyond the end of the segment to a distance equal to half of the line width.
`static int`	`JOIN_BEVEL`	Joins path segments by connecting the outer corners of their wide outlines with a straight segment.
`static int`	`JOIN_MITER`	Joins path segments by extending their outside edges until they meet.
`static int`	`JOIN_ROUND`	Joins path segments by rounding off the corner at a radius of half the line width.

Constructor Summary

Constructors
Constructor	Description
`BasicStroke()`	Constructs a new `BasicStroke` with defaults for all attributes.
`BasicStroke(float width)`	Constructs a solid `BasicStroke` with the specified line width and with default values for the cap and join styles.
`BasicStroke(float width, int cap, int join)`	Constructs a solid `BasicStroke` with the specified attributes.
`BasicStroke(float width, int cap, int join, float miterlimit)`	Constructs a solid `BasicStroke` with the specified attributes.
`BasicStroke(float width, int cap, int join, float miterlimit, float[] dash, float dash_phase)`	Constructs a new `BasicStroke` with the specified attributes.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Shape`	`createStrokedShape(Shape s)`	Returns a `Shape` whose interior defines the stroked outline of a specified `Shape`.
`boolean`	`equals(Object obj)`	Tests if a specified object is equal to this `BasicStroke` by first testing if it is a `BasicStroke` and then comparing its width, join, cap, miter limit, dash, and dash phase attributes with those of this `BasicStroke`.
`float[]`	`getDashArray()`	Returns the array representing the lengths of the dash segments.
`float`	`getDashPhase()`	Returns the current dash phase.
`int`	`getEndCap()`	Returns the end cap style.
`int`	`getLineJoin()`	Returns the line join style.
`float`	`getLineWidth()`	Returns the line width.
`float`	`getMiterLimit()`	Returns the limit of miter joins.
`int`	`hashCode()`	Returns the hashcode for this stroke.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - JOIN_MITER
```
@Native
public static final int JOIN_MITER
```
    Joins path segments by extending their outside edges until they meet.
    
    See Also:
    
    Constant Field Values
  - JOIN_ROUND
```
@Native
public static final int JOIN_ROUND
```
    Joins path segments by rounding off the corner at a radius of half the line width.
    
    See Also:
    
    Constant Field Values
  - JOIN_BEVEL
```
@Native
public static final int JOIN_BEVEL
```
    Joins path segments by connecting the outer corners of their wide outlines with a straight segment.
    
    See Also:
    
    Constant Field Values
  - CAP_BUTT
```
@Native
public static final int CAP_BUTT
```
    Ends unclosed subpaths and dash segments with no added decoration.
    
    See Also:
    
    Constant Field Values
  - CAP_ROUND
```
@Native
public static final int CAP_ROUND
```
    Ends unclosed subpaths and dash segments with a round decoration that has a radius equal to half of the width of the pen.
    
    See Also:
    
    Constant Field Values
  - CAP_SQUARE
```
@Native
public static final int CAP_SQUARE
```
    Ends unclosed subpaths and dash segments with a square projection that extends beyond the end of the segment to a distance equal to half of the line width.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - BasicStroke
```
@ConstructorProperties(
```

Class BasicStroke

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

JOIN_MITER

JOIN_ROUND

JOIN_BEVEL

CAP_BUTT

CAP_ROUND

CAP_SQUARE

Constructor Detail

BasicStroke