Group

Documentation of 'edu.rit.draw.item.Group' Java class Group

All Classes

Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method

java.lang.Object
- edu.rit.draw.item.DrawingItem
- - edu.rit.draw.item.Group

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable
```
public class Group
extends DrawingItem
implements java.io.Externalizable
```
Class Group provides a DrawingItem that consists of a group of other DrawingItems. To add drawing items to a group, call the group's append() and prepend() methods.
The group can be scaled as a unit by calling the xScale() and yScale() methods. The group can be sheared as a unit by calling the xShear() and yShear() methods. The group can be rotated as a unit by calling the rotationAngle() method; the group is always rotated around its center point. The order in which these transforms are applied is first scaling, then shearing, then rotation.
The group's "bounding box" is the smallest rectangle that encloses all the contained drawing items' bounding boxes, after applying the scale, shear, and rotation transforms if any. The nw(), n(), ne(), w(), c(), e(), sw(), s(), and se() methods refer to points on the group's bounding box. The setter versions of these methods translate the group so the designated point on the group's bounding box coincides with the point specified as the argument. The getter versions of these methods return the designated point on the group's bounding box.
The group's "original bounding box" is the smallest rectangle that encloses all the contained drawing items' bounding boxes, before applying the scale, shear, and rotation transforms if any. The orig_nw(), orig_n(), orig_ne(), orig_w(), orig_c(), orig_e(), orig_sw(), orig_s(), and orig_se() methods refer to points on the group's original bounding box. The setter versions of these methods translate the group so the designated point on the group's original bounding box coincides with the point specified as the argument. The getter versions of these methods return the designated point on the group's original bounding box.
The transform() method takes a point, applies the group's scaling, shearing, rotation, and translation transforms to the point, and returns the transformed point. You can use this method, for example, to find out where a point defined before applying transforms to the group would end up after applying transforms to the group.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static double`	`NORMAL_ROTATION_ANGLE` The normal rotation angle (0).
`static double`	`NORMAL_X_SCALE` The normal X scale factor (1).
`static double`	`NORMAL_X_SHEAR` The normal X shear factor (0).
`static double`	`NORMAL_Y_SCALE` The normal Y scale factor (1).
`static double`	`NORMAL_Y_SHEAR` The normal Y shear factor (0).

Constructor Summary

Constructors
Constructor and Description
`Group()` Construct a new empty group.
`Group(Group theGroup)` Construct a new group that contains the same drawing items, has the same transforms, and is at the same location, as the given group.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Group`	`add()` Add this group to the end of the default drawing's sequence of drawing items.
`Group`	`add(Drawing theDrawing)` Add this group to the end of the given drawing's sequence of drawing items.
`Group`	`addFirst()` Add this group to the beginning of the default drawing's sequence of drawing items.
`Group`	`addFirst(Drawing theDrawing)` Add this group to the beginning of the given drawing's sequence of drawing items.
`Group`	`append(DrawingItem theItem)` Add the given drawing item to the end of this group's list of drawing items.
`Group`	`c(double x, double y)` Set the center point of this group's bounding box.
`Group`	`c(Point thePoint)` Set the center point of this group's bounding box.
`Group`	`clear()` Clear this group.
`Point`	`content_c()` Returns the center point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_e()` Returns the east center point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_n()` Returns the north center point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_ne()` Returns the northeast corner point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_nw()` Returns the northwest corner point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_s()` Returns the south center point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_se()` Returns the southeast corner point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_sw()` Returns the southwest corner point of this group's original bounding box, without applying the group's transformations if any.
`Point`	`content_w()` Returns the west center point of this group's original bounding box, without applying the group's transformations if any.
`static double`	`defaultRotationAngle()` Returns the default rotation angle.
`static void`	`defaultRotationAngle(double theAngle)` Set the default rotation angle.
`static double`	`defaultXScale()` Returns the default X scale factor.
`static void`	`defaultXScale(double theXScale)` Set the default X scale factor.
`static double`	`defaultXShear()` Returns the default X shear factor.
`static void`	`defaultXShear(double theXShear)` Set the default X shear factor.
`static double`	`defaultYScale()` Returns the default Y scale factor.
`static void`	`defaultYScale(double theYScale)` Set the default Y scale factor.
`static double`	`defaultYShear()` Returns the default Y shear factor.
`static void`	`defaultYShear(double theYShear)` Set the default Y shear factor.
`void`	`draw(java.awt.Graphics2D g2d)` Draw this drawing item in the given graphics context.
`Group`	`e(double x, double y)` Set the east middle point of this group's bounding box.
`Group`	`e(Point thePoint)` Set the east middle point of this group's bounding box.
`double`	`height()` Returns the height of this group's bounding box.
`Group`	`n(double x, double y)` Set the north middle point of this group's bounding box.
`Group`	`n(Point thePoint)` Set the north middle point of this group's bounding box.
`Group`	`ne(double x, double y)` Set the northeast corner point of this group's bounding box.
`Group`	`ne(Point thePoint)` Set the northeast corner point of this group's bounding box.
`Point`	`nw()` Returns the northwest corner point of this group's bounding box.
`Group`	`nw(double x, double y)` Set the northwest corner point of this group's bounding box.
`Group`	`nw(Point thePoint)` Set the northwest corner point of this group's bounding box.
`Point`	`orig_c()` Returns the center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_c(double x, double y)` Set the center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_c(Point thePoint)` Set the center point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_e()` Returns the east center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_e(double x, double y)` Set the east center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_e(Point thePoint)` Set the east center point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_n()` Returns the north center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_n(double x, double y)` Set the north center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_n(Point thePoint)` Set the north center point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_ne()` Returns the northeast corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_ne(double x, double y)` Set the northeast corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_ne(Point thePoint)` Set the northeast corner point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_nw()` Returns the northwest corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_nw(double x, double y)` Set the northwest corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_nw(Point thePoint)` Set the northwest corner point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_s()` Returns the south center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_s(double x, double y)` Set the south center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_s(Point thePoint)` Set the south center point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_se()` Returns the southeast corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_se(double x, double y)` Set the southeast corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_se(Point thePoint)` Set the southeast corner point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_sw()` Returns the southwest corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_sw(double x, double y)` Set the southwest corner point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_sw(Point thePoint)` Set the southwest corner point of this group's original bounding box, after applying the group's transformations if any.
`Point`	`orig_w()` Returns the west center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_w(double x, double y)` Set the west center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`orig_w(Point thePoint)` Set the west center point of this group's original bounding box, after applying the group's transformations if any.
`Group`	`prepend(DrawingItem theItem)` Add the given drawing item to the beginning of this group's list of drawing items.
`void`	`readExternal(java.io.ObjectInput in)` Read this group from the given object input stream.
`double`	`rotationAngle()` Returns this group's rotation angle.
`Group`	`rotationAngle(double theAngle)` Set this group's rotation angle.
`Group`	`s(double x, double y)` Set the south middle point of this group's bounding box.
`Group`	`s(Point thePoint)` Set the south middle point of this group's bounding box.
`Group`	`se(double x, double y)` Set the southeast corner point of this group's bounding box.
`Group`	`se(Point thePoint)` Set the southeast corner point of this group's bounding box.
`Size`	`size()` Returns the size of this group's bounding box.
`Group`	`sw(double x, double y)` Set the southwest corner point of this group's bounding box.
`Group`	`sw(Point thePoint)` Set the southwest corner point of this group's bounding box.
`Point`	`transform(Point thePoint)` Transform the given point by applying this group's scaling, shearing, rotation, and translation transforms.
`Group`	`w(double x, double y)` Set the west middle point of this group's bounding box.
`Group`	`w(Point thePoint)` Set the west middle point of this group's bounding box.
`double`	`width()` Returns the width of this group's bounding box.
`void`	`writeExternal(java.io.ObjectOutput out)` Write this group to the given object output stream.
`double`	`xScale()` Returns this group's X scale factor.
`Group`	`xScale(double theXScale)` Set this group's X scale factor.
`double`	`xShear()` Returns this group's X shear factor.
`Group`	`xShear(double theXShear)` Set this group's X shear factor.
`double`	`yScale()` Returns this group's Y scale factor.
`Group`	`yScale(double theYScale)` Set this group's Y scale factor.
`double`	`yShear()` Returns this group's Y shear factor.
`Group`	`yShear(double theYShear)` Set this group's Y shear factor.

Methods inherited from class edu.rit.draw.item.DrawingItem
boundingBox, c, e, n, ne, s, se, sw, w

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - NORMAL_X_SCALE
```
public static final double NORMAL_X_SCALE
```
    The normal X scale factor (1).
    
    See Also:
    
    Constant Field Values
  - NORMAL_Y_SCALE
```
public static final double NORMAL_Y_SCALE
```
    The normal Y scale factor (1).
    
    See Also:
    
    Constant Field Values
  - NORMAL_X_SHEAR
```
public static final double NORMAL_X_SHEAR
```
    The normal X shear factor (0).
    
    See Also:
    
    Constant Field Values
  - NORMAL_Y_SHEAR
```
public static final double NORMAL_Y_SHEAR
```
    The normal Y shear factor (0).
    
    See Also:
    
    Constant Field Values
  - NORMAL_ROTATION_ANGLE
```
public static final double NORMAL_ROTATION_ANGLE
```
    The normal rotation angle (0).
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Group
```
public Group()
```
    Construct a new empty group. The group's northwest corner is located at (0,0).
  - Group
```
public Group(Group theGroup)
```
    Construct a new group that contains the same drawing items, has the same transforms, and is at the same location, as the given group.
    
    Parameters:
    
    theGroup - Group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if theGroup is null.
- Method Detail
  - defaultXScale
```
public static double defaultXScale()
```
    Returns the default X scale factor.
    
    Returns:
    
    Default X scale factor.
  - defaultXScale
```
public static void defaultXScale(double theXScale)
```
    Set the default X scale factor. Before calling this method the first time, the default X scale factor is 1.
    
    Parameters:
    
    theXScale - Default X scale factor.
  - defaultYScale
```
public static double defaultYScale()
```
    Returns the default Y scale factor.
    
    Returns:
    
    Default Y scale factor.
  - defaultYScale
```
public static void defaultYScale(double theYScale)
```
    Set the default Y scale factor. Before calling this method the first time, the default Y scale factor is 1.
    
    Parameters:
    
    theYScale - Default Y scale factor.
  - defaultXShear
```
public static double defaultXShear()
```
    Returns the default X shear factor.
    
    Returns:
    
    Default X shear factor.
  - defaultXShear
```
public static void defaultXShear(double theXShear)
```
    Set the default X shear factor. Before calling this method the first time, the default X shear factor is 0.
    
    Parameters:
    
    theXShear - Default X shear factor.
  - defaultYShear
```
public static double defaultYShear()
```
    Returns the default Y shear factor.
    
    Returns:
    
    Default Y shear factor.
  - defaultYShear
```
public static void defaultYShear(double theYShear)
```
    Set the default Y shear factor. Before calling this method the first time, the default Y shear factor is 0.
    
    Parameters:
    
    theYShear - Default Y shear factor.
  - defaultRotationAngle
```
public static double defaultRotationAngle()
```
    Returns the default rotation angle.
    
    Returns:
    
    Default rotation angle.
  - defaultRotationAngle
```
public static void defaultRotationAngle(double theAngle)
```
    Set the default rotation angle. Before calling this method the first time, the default rotation angle is 0.
    
    Parameters:
    
    theAngle - Default rotation angle.
  - xScale
```
public double xScale()
```
    Returns this group's X scale factor.
    
    Returns:
    
    X scale factor.
  - xScale
```
public Group xScale(double theXScale)
```
    Set this group's X scale factor.
    
    Parameters:
    
    theXScale - X scale factor.
    
    Returns:
    
    This group.
  - yScale
```
public double yScale()
```
    Returns this group's Y scale factor.
    
    Returns:
    
    Y scale factor.
  - yScale
```
public Group yScale(double theYScale)
```
    Set this group's Y scale factor.
    
    Parameters:
    
    theYScale - Y scale factor.
    
    Returns:
    
    This group.
  - xShear
```
public double xShear()
```
    Returns this group's X shear factor.
    
    Returns:
    
    X shear factor.
  - xShear
```
public Group xShear(double theXShear)
```
    Set this group's X shear factor.
    
    Parameters:
    
    theXShear - X shear factor.
    
    Returns:
    
    This group.
  - yShear
```
public double yShear()
```
    Returns this group's Y shear factor.
    
    Returns:
    
    Y shear factor.
  - yShear
```
public Group yShear(double theYShear)
```
    Set this group's Y shear factor.
    
    Parameters:
    
    theYShear - Y shear factor.
    
    Returns:
    
    This group.
  - rotationAngle
```
public double rotationAngle()
```
    Returns this group's rotation angle.
    
    Returns:
    
    Rotation angle.
  - rotationAngle
```
public Group rotationAngle(double theAngle)
```
    Set this group's rotation angle.
    
    Parameters:
    
    theAngle - Rotation angle.
    
    Returns:
    
    This group.
  - clear
```
public Group clear()
```
    Clear this group. All drawing items in this group are removed.
    
    Returns:
    
    This group.
  - append
```
public Group append(DrawingItem theItem)
```
    Add the given drawing item to the end of this group's list of drawing items.
    
    Parameters:
    
    theItem - Drawing item.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if theItem is null.
  - prepend
```
public Group prepend(DrawingItem theItem)
```
    Add the given drawing item to the beginning of this group's list of drawing items.
    
    Parameters:
    
    theItem - Drawing item.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if theItem is null.
  - size
```
public Size size()
```
    Returns the size of this group's bounding box.
    
    Overrides:
    
    size in class DrawingItem
    
    Returns:
    
    Size.
  - width
```
public double width()
```
    Returns the width of this group's bounding box.
    
    Specified by:
    
    width in class DrawingItem
    
    Returns:
    
    Width.
  - height
```
public double height()
```
    Returns the height of this group's bounding box.
    
    Specified by:
    
    height in class DrawingItem
    
    Returns:
    
    Height.
  - nw
```
public Point nw()
```
    Returns the northwest corner point of this group's bounding box.
    
    Specified by:
    
    nw in class DrawingItem
    
    Returns:
    
    Northwest corner point.
  - nw
```
public Group nw(double x,
                double y)
```
    Set the northwest corner point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of northwest corner point.
    
    y - Y coordinate of northwest corner point.
    
    Returns:
    
    This group.
  - nw
```
public Group nw(Point thePoint)
```
    Set the northwest corner point of this group's bounding box.
    
    Parameters:
    
    thePoint - Northwest corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - n
```
public Group n(double x,
               double y)
```
    Set the north middle point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of north middle point.
    
    y - Y coordinate of north middle point.
    
    Returns:
    
    This group.
  - n
```
public Group n(Point thePoint)
```
    Set the north middle point of this group's bounding box.
    
    Parameters:
    
    thePoint - North middle point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - ne
```
public Group ne(double x,
                double y)
```
    Set the northeast corner point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of northeast corner point.
    
    y - Y coordinate of northeast corner point.
    
    Returns:
    
    This group.
  - ne
```
public Group ne(Point thePoint)
```
    Set the northeast corner point of this group's bounding box.
    
    Parameters:
    
    thePoint - Northeast corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - w
```
public Group w(double x,
               double y)
```
    Set the west middle point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of west middle point.
    
    y - Y coordinate of west middle point.
    
    Returns:
    
    This group.
  - w
```
public Group w(Point thePoint)
```
    Set the west middle point of this group's bounding box.
    
    Parameters:
    
    thePoint - West middle point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - c
```
public Group c(double x,
               double y)
```
    Set the center point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of center point.
    
    y - Y coordinate of center point.
    
    Returns:
    
    This group.
  - c
```
public Group c(Point thePoint)
```
    Set the center point of this group's bounding box.
    
    Parameters:
    
    thePoint - Center point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - e
```
public Group e(double x,
               double y)
```
    Set the east middle point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of east middle point.
    
    y - Y coordinate of east middle point.
    
    Returns:
    
    This group.
  - e
```
public Group e(Point thePoint)
```
    Set the east middle point of this group's bounding box.
    
    Parameters:
    
    thePoint - East middle point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - sw
```
public Group sw(double x,
                double y)
```
    Set the southwest corner point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of southwest corner point.
    
    y - Y coordinate of southwest corner point.
    
    Returns:
    
    This group.
  - sw
```
public Group sw(Point thePoint)
```
    Set the southwest corner point of this group's bounding box.
    
    Parameters:
    
    thePoint - Southwest corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - s
```
public Group s(double x,
               double y)
```
    Set the south middle point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of south middle point.
    
    y - Y coordinate of south middle point.
    
    Returns:
    
    This group.
  - s
```
public Group s(Point thePoint)
```
    Set the south middle point of this group's bounding box.
    
    Parameters:
    
    thePoint - South middle point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - se
```
public Group se(double x,
                double y)
```
    Set the southeast corner point of this group's bounding box.
    
    Parameters:
    
    x - X coordinate of southeast corner point.
    
    y - Y coordinate of southeast corner point.
    
    Returns:
    
    This group.
  - se
```
public Group se(Point thePoint)
```
    Set the southeast corner point of this group's bounding box.
    
    Parameters:
    
    thePoint - Southeast corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_nw
```
public Point orig_nw()
```
    Returns the northwest corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    Northwest corner point.
  - orig_nw
```
public Group orig_nw(double x,
                     double y)
```
    Set the northwest corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of northwest corner point.
    
    y - Y coordinate of northwest corner point.
    
    Returns:
    
    This group.
  - orig_nw
```
public Group orig_nw(Point thePoint)
```
    Set the northwest corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - Northwest corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_n
```
public Point orig_n()
```
    Returns the north center point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    North center point.
  - orig_n
```
public Group orig_n(double x,
                    double y)
```
    Set the north center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of north center point.
    
    y - Y coordinate of north center point.
    
    Returns:
    
    This group.
  - orig_n
```
public Group orig_n(Point thePoint)
```
    Set the north center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - North center point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_ne
```
public Point orig_ne()
```
    Returns the northeast corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    Northeast corner point.
  - orig_ne
```
public Group orig_ne(double x,
                     double y)
```
    Set the northeast corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of northeast corner point.
    
    y - Y coordinate of northeast corner point.
    
    Returns:
    
    This group.
  - orig_ne
```
public Group orig_ne(Point thePoint)
```
    Set the northeast corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - Northeast corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_w
```
public Point orig_w()
```
    Returns the west center point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    West center point.
  - orig_w
```
public Group orig_w(double x,
                    double y)
```
    Set the west center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of west center point.
    
    y - Y coordinate of west center point.
    
    Returns:
    
    This group.
  - orig_w
```
public Group orig_w(Point thePoint)
```
    Set the west center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - West center point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_c
```
public Point orig_c()
```
    Returns the center point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    Center point.
  - orig_c
```
public Group orig_c(double x,
                    double y)
```
    Set the center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of center point.
    
    y - Y coordinate of center point.
    
    Returns:
    
    This group.
  - orig_c
```
public Group orig_c(Point thePoint)
```
    Set the center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - Center point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_e
```
public Point orig_e()
```
    Returns the east center point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    East center point.
  - orig_e
```
public Group orig_e(double x,
                    double y)
```
    Set the east center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of east center point.
    
    y - Y coordinate of east center point.
    
    Returns:
    
    This group.
  - orig_e
```
public Group orig_e(Point thePoint)
```
    Set the east center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - East center point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_sw
```
public Point orig_sw()
```
    Returns the southwest corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    Southwest corner point.
  - orig_sw
```
public Group orig_sw(double x,
                     double y)
```
    Set the southwest corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of southwest corner point.
    
    y - Y coordinate of southwest corner point.
    
    Returns:
    
    This group.
  - orig_sw
```
public Group orig_sw(Point thePoint)
```
    Set the southwest corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - Southwest corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_s
```
public Point orig_s()
```
    Returns the south center point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    South center point.
  - orig_s
```
public Group orig_s(double x,
                    double y)
```
    Set the south center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of south center point.
    
    y - Y coordinate of south center point.
    
    Returns:
    
    This group.
  - orig_s
```
public Group orig_s(Point thePoint)
```
    Set the south center point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - South center point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - orig_se
```
public Point orig_se()
```
    Returns the southeast corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Returns:
    
    Southeast corner point.
  - orig_se
```
public Group orig_se(double x,
                     double y)
```
    Set the southeast corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    x - X coordinate of southeast corner point.
    
    y - Y coordinate of southeast corner point.
    
    Returns:
    
    This group.
  - orig_se
```
public Group orig_se(Point thePoint)
```
    Set the southeast corner point of this group's original bounding box, after applying the group's transformations if any.
    
    Parameters:
    
    thePoint - Southeast corner point.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if thePoint is null.
  - content_nw
```
public Point content_nw()
```
    Returns the northwest corner point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    Northwest corner point.
  - content_n
```
public Point content_n()
```
    Returns the north center point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    North center point.
  - content_ne
```
public Point content_ne()
```
    Returns the northeast corner point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    Northeast corner point.
  - content_w
```
public Point content_w()
```
    Returns the west center point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    West center point.
  - content_c
```
public Point content_c()
```
    Returns the center point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    Center point.
  - content_e
```
public Point content_e()
```
    Returns the east center point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    East center point.
  - content_sw
```
public Point content_sw()
```
    Returns the southwest corner point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    Southwest corner point.
  - content_s
```
public Point content_s()
```
    Returns the south center point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    South center point.
  - content_se
```
public Point content_se()
```
    Returns the southeast corner point of this group's original bounding box, without applying the group's transformations if any.
    
    Returns:
    
    Southeast corner point.
  - add
```
public Group add()
```
    Add this group to the end of the default drawing's sequence of drawing items.
    
    Overrides:
    
    add in class DrawingItem
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if there is no default drawing.
    
    See Also:
    
    Drawing.defaultDrawing()
  - add
```
public Group add(Drawing theDrawing)
```
    Add this group to the end of the given drawing's sequence of drawing items.
    
    Overrides:
    
    add in class DrawingItem
    
    Parameters:
    
    theDrawing - Drawing.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if theDrawing is null.
  - addFirst
```
public Group addFirst()
```
    Add this group to the beginning of the default drawing's sequence of drawing items.
    
    Overrides:
    
    addFirst in class DrawingItem
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if there is no default drawing.
    
    See Also:
    
    Drawing.defaultDrawing()
  - addFirst
```
public Group addFirst(Drawing theDrawing)
```
    Add this group to the beginning of the given drawing's sequence of drawing items.
    
    Overrides:
    
    addFirst in class DrawingItem
    
    Parameters:
    
    theDrawing - Drawing.
    
    Returns:
    
    This group.
    
    Throws:
    
    java.lang.NullPointerException - (unchecked exception) Thrown if theDrawing is null.
  - writeExternal
```
public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException
```
    Write this group to the given object output stream.
    
    Specified by:
    
    writeExternal in interface java.io.Externalizable
    
    Overrides:
    
    writeExternal in class DrawingItem
    
    Parameters:
    
    out - Object output stream.
    
    Throws:
    
    java.io.IOException - Thrown if an I/O error occurred.
  - readExternal
```
public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException
```
    Read this group from the given object input stream.
    
    Specified by:
    
    readExternal in interface java.io.Externalizable
    
    Overrides:
    
    readExternal in class DrawingItem
    
    Parameters:
    
    in - Object input stream.
    
    Throws:
    
    java.io.IOException - Thrown if an I/O error occurred.
    
    java.lang.ClassNotFoundException - Thrown if any class needed to deserialize this group cannot be found.
  - draw
```
public void draw(java.awt.Graphics2D g2d)
```
    Draw this drawing item in the given graphics context. This method is allowed to change the graphics context's paint, stroke, and transform, and it doesn't have to change them back.
    
    Overrides:
    
    draw in class DrawingItem
    
    Parameters:
    
    g2d - 2-D graphics context.
  - transform
```
public Point transform(Point thePoint)
```
    Transform the given point by applying this group's scaling, shearing, rotation, and translation transforms.
    
    Parameters:
    
    thePoint - Point before applying transforms.
    
    Returns:
    
    Point after applying transforms.

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Class Group

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Methods inherited from class edu.rit.draw.item.DrawingItem

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NORMAL_X_SCALE

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Constructor Detail

Group

Group

Method Detail

defaultXScale

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defaultXShear

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defaultYShear

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defaultRotationAngle

xScale

xScale

yScale

yScale

xShear

xShear

yShear

yShear

rotationAngle

rotationAngle

clear

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width

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nw

nw

nw

n

n

ne

ne

w

w

c

c

e

e

sw

sw

s

s

se

se

orig_nw

orig_nw

orig_nw

orig_n

orig_n

orig_n

orig_ne

orig_ne

orig_ne

orig_w

orig_w

orig_w

orig_c

orig_c

orig_c

orig_e

orig_e

orig_e

orig_sw