Module java.desktop

Package java.awt.geom


package java.awt.geom
Provides the Java 2D classes for defining and performing operations on objects related to two-dimensional geometry. Some important features of the package include:
  • classes for manipulating geometry, such as AffineTransform and the PathIterator interface which is implemented by all Shape objects.
  • classes that implement the Shape interface, such as CubicCurve2D, Ellipse2D, Line2D, Rectangle2D, and GeneralShape.
  • the Area class which provides mechanisms for add (union), subtract, intersect, and exclusiveOR operations on other Shape objects.
Since:
1.2
  • Related Packages
    Package
    Description
    Contains all of the classes for creating user interfaces and for painting graphics and images.
  • Interface Summary
    Interface
    Description
    The PathIterator interface provides the mechanism for objects that implement the Shape interface to return the geometry of their boundary by allowing a caller to retrieve the path of that boundary a segment at a time.
  • Class Summary
    Class
    Description
    The AffineTransform class represents a 2D affine transform that performs a linear mapping from 2D coordinates to other 2D coordinates that preserves the "straightness" and "parallelness" of lines.
    Arc2D is the abstract superclass for all objects that store a 2D arc defined by a framing rectangle, start angle, angular extent (length of the arc), and a closure type (OPEN, CHORD, or PIE).
    This class defines an arc specified in double precision.
    This class defines an arc specified in float precision.
    An Area object stores and manipulates a resolution-independent description of an enclosed area of 2-dimensional space.
    The CubicCurve2D class defines a cubic parametric curve segment in (x,y) coordinate space.
    A cubic parametric curve segment specified with double coordinates.
    A cubic parametric curve segment specified with float coordinates.
    The Dimension2D class is to encapsulate a width and a height dimension.
    The Ellipse2D class describes an ellipse that is defined by a framing rectangle.
    The Double class defines an ellipse specified in double precision.
    The Float class defines an ellipse specified in float precision.
    The FlatteningPathIterator class returns a flattened view of another PathIterator object.
    The GeneralPath class represents a geometric path constructed from straight lines, and quadratic and cubic (Bézier) curves.
    This Line2D represents a line segment in (x,y) coordinate space.
    A line segment specified with double coordinates.
    A line segment specified with float coordinates.
    The Path2D class provides a simple, yet flexible shape which represents an arbitrary geometric path.
    The Double class defines a geometric path with coordinates stored in double precision floating point.
    The Float class defines a geometric path with coordinates stored in single precision floating point.
    The Point2D class defines a point representing a location in (x,y) coordinate space.
    The Double class defines a point specified in double precision.
    The Float class defines a point specified in float precision.
    The QuadCurve2D class defines a quadratic parametric curve segment in (x,y) coordinate space.
    A quadratic parametric curve segment specified with double coordinates.
    A quadratic parametric curve segment specified with float coordinates.
    The Rectangle2D class describes a rectangle defined by a location (x,y) and dimension (w x h).
    The Double class defines a rectangle specified in double coordinates.
    The Float class defines a rectangle specified in float coordinates.
    RectangularShape is the base class for a number of Shape objects whose geometry is defined by a rectangular frame.
    The RoundRectangle2D class defines a rectangle with rounded corners defined by a location (x,y), a dimension (w x h), and the width and height of an arc with which to round the corners.
    The Double class defines a rectangle with rounded corners all specified in double coordinates.
    The Float class defines a rectangle with rounded corners all specified in float coordinates.
  • Exception Summary
    Exception
    Description
    The IllegalPathStateException represents an exception that is thrown if an operation is performed on a path that is in an illegal state with respect to the particular operation being performed, such as appending a path segment to a GeneralPath without an initial moveto.
    The NoninvertibleTransformException class represents an exception that is thrown if an operation is performed requiring the inverse of an AffineTransform object but the AffineTransform is in a non-invertible state.