Java java.awt.geom Class Arc2D.Float（JDK8）

Field Detail

• x

  public float x

  The X coordinate of the upper-left corner of the framing rectangle of the arc.

  Since:

  1.2

• y

  public float y

  The Y coordinate of the upper-left corner of the framing rectangle of the arc.

  Since:

  1.2

• width

  public float width

  The overall width of the full ellipse of which this arc is a partial section (not considering the angular extents).

  Since:

  1.2

• height

  public float height

  The overall height of the full ellipse of which this arc is a partial section (not considering the angular extents).

  Since:

  1.2

• start

  public float start

  The starting angle of the arc in degrees.

  Since:

  1.2

• extent

  public float extent

  The angular extent of the arc in degrees.

  Since:

  1.2

Constructor Detail

• Float

  public Float()

  Constructs a new OPEN arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0).

  Since:

  1.2

• Float

  public Float(int type)

  Constructs a new arc, initialized to location (0, 0), size (0, 0), angular extents (start = 0, extent = 0), and the specified closure type.

  Parameters:

  type - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

  Since:

  1.2

• Float

  public Float(float x,
               float y,
               float w,
               float h,
               float start,
               float extent,
               int type)

  Constructs a new arc, initialized to the specified location, size, angular extents, and closure type.

  Parameters:

  x - The X coordinate of the upper-left corner of the arc's framing rectangle.

  y - The Y coordinate of the upper-left corner of the arc's framing rectangle.

  w - The overall width of the full ellipse of which this arc is a partial section.

  h - The overall height of the full ellipse of which this arc is a partial section.

  start - The starting angle of the arc in degrees.

  extent - The angular extent of the arc in degrees.

  type - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

  Since:

  1.2

• Float

  public Float(Rectangle2D ellipseBounds,
               float start,
               float extent,
               int type)

  Constructs a new arc, initialized to the specified location, size, angular extents, and closure type.

  Parameters:

  ellipseBounds - The framing rectangle that defines the outer boundary of the full ellipse of which this arc is a partial section.

  start - The starting angle of the arc in degrees.

  extent - The angular extent of the arc in degrees.

  type - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

  Since:

  1.2

Method Detail

• getX

  public double getX()

  Returns the X coordinate of the upper-left corner of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

  Specified by:

  getX in class RectangularShape

  Returns:

  the X coordinate of the upper-left corner of the framing rectangle.

  Since:

  1.2

• getY

  public double getY()

  Returns the Y coordinate of the upper-left corner of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

  Specified by:

  getY in class RectangularShape

  Returns:

  the Y coordinate of the upper-left corner of the framing rectangle.

  Since:

  1.2

• getWidth

  public double getWidth()

  Returns the width of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

  Specified by:

  getWidth in class RectangularShape

  Returns:

  the width of the framing rectangle.

  Since:

  1.2

• getHeight

  public double getHeight()

  Returns the height of the framing rectangle in double precision. Note that the arc partially inscribes the framing rectangle of this RectangularShape.

  Specified by:

  getHeight in class RectangularShape

  Returns:

  the height of the framing rectangle.

  Since:

  1.2

• getAngleStart

  public double getAngleStart()

  Returns the starting angle of the arc.

  Specified by:

  getAngleStart in class Arc2D

  Returns:

  A double value that represents the starting angle of the arc in degrees.

  Since:

  1.2

  See Also:

  Arc2D.setAngleStart(double)

• getAngleExtent

  public double getAngleExtent()

  Returns the angular extent of the arc.

  Specified by:

  getAngleExtent in class Arc2D

  Returns:

  A double value that represents the angular extent of the arc in degrees.

  Since:

  1.2

  See Also:

  Arc2D.setAngleExtent(double)

• isEmpty

  public boolean isEmpty()

  Determines whether the RectangularShape is empty. When the RectangularShape is empty, it encloses no area.

  Specified by:

  isEmpty in class RectangularShape

  Returns:

  true if the RectangularShape is empty; false otherwise.

  Since:

  1.2

• setArc

  public void setArc(double x,
                     double y,
                     double w,
                     double h,
                     double angSt,
                     double angExt,
                     int closure)

  Sets the location, size, angular extents, and closure type of this arc to the specified double values.

  Specified by:

  setArc in class Arc2D

  Parameters:

  x - The X coordinate of the upper-left corner of the arc.

  y - The Y coordinate of the upper-left corner of the arc.

  w - The overall width of the full ellipse of which this arc is a partial section.

  h - The overall height of the full ellipse of which this arc is a partial section.

  angSt - The starting angle of the arc in degrees.

  angExt - The angular extent of the arc in degrees.

  closure - The closure type for the arc: Arc2D.OPEN, Arc2D.CHORD, or Arc2D.PIE.

  Since:

  1.2

• setAngleStart

  public void setAngleStart(double angSt)

  Sets the starting angle of this arc to the specified double value.

  Specified by:

  setAngleStart in class Arc2D

  Parameters:

  angSt - The starting angle of the arc in degrees.

  Since:

  1.2

  See Also:

  Arc2D.getAngleStart()

• setAngleExtent

  public void setAngleExtent(double angExt)

  Sets the angular extent of this arc to the specified double value.

  Specified by:

  setAngleExtent in class Arc2D

  Parameters:

  angExt - The angular extent of the arc in degrees.

  Since:

  1.2

  See Also:

  Arc2D.getAngleExtent()

• makeBounds

  protected Rectangle2D makeBounds(double x,
                                   double y,
                                   double w,
                                   double h)

  Constructs a Rectangle2D of the appropriate precision to hold the parameters calculated to be the framing rectangle of this arc.

  Specified by:

  makeBounds in class Arc2D

  Parameters:

  x - The X coordinate of the upper-left corner of the framing rectangle.

  y - The Y coordinate of the upper-left corner of the framing rectangle.

  w - The width of the framing rectangle.

  h - The height of the framing rectangle.

  Returns:

  a Rectangle2D that is the framing rectangle of this arc.

  Since:

  1.2