jfig.objects
Class FigEllipse

java.lang.Object
  jfig.objects.FigBaseobject
      jfig.objects.FigEllipse

All Implemented Interfaces:

FigDrawable, FigObject

Direct Known Subclasses:

Circle, SolderDot

public class FigEllipse

extends FigBaseobject

FIG ellipse/circle object.

Field Summary

(package private) java.awt.Point	center
(package private) FigRenderer	renderer
(package private) java.awt.Point	size

Fields inherited from class jfig.objects.FigBaseobject

attribs, bbox, comment, debug, painter, printer, sc_bbox, sc_bbox_timestamp, selected, showPoints, syncRedrawFlag, timestamp, trafo, visible, x, y

Constructor Summary

FigEllipse(java.awt.Point p1, java.awt.Point p2, FigAttribs attribs, FigTrafo2D trafo)
Basic FigEllipse constructor, center Point p1.

Method Summary

void	appendPoint(java.awt.Point wp) No, we cannot append, insert, or delete a Point in a rectangle.
boolean	canRotate(double angle_in_rad)
FigObject	copy() build a copy of this FigEllipse object.
void	createRenderer()
java.awt.Point	deletePoint(java.awt.Point wp) delete the Point with specified coords from our Point list.
java.awt.Point	getCenterPoint()
java.awt.Point[]	getMovePointNeighbors(java.awt.Point wp) getMovePointNeighbors( Point wp ): find the nearest Point of the rectangle and return an array with the opposite corner, to allow the main editor correct rubberbanding.
java.awt.Point	getNearestPoint(java.awt.Point wp) return the point of this object nearest to Point wp, if any.
java.awt.Point[]	getNeighborPoints(java.awt.Point wp) get the two neighbor Points for the specified Point wp from our Point list.
java.awt.Point[]	getPoints() return a list of all Points of this objects.
java.awt.Point	getRadiusPoint()
void	insertPoint(java.awt.Point wp, java.awt.Point wpnew) insert a Point wp into our Point list after Point wprev.
boolean	isClosed() return true if this object is 'closed' (polygon vs. polyline, etc)
double	minDistance(java.awt.Point wp) return the minimum distance of any points (edges,corners) of this object and the Point wp.
void	mirrorX(int mirror_x, int mirror_y) mirrorX():
void	mirrorY(int mirror_x, int mirror_y) mirrorY():
void	move(int dx, int dy) method stub for the move() method
void	movePoint(java.awt.Point wp, java.awt.Point wpnew) move the Point wp to position wpnew.
void	paint(java.awt.Graphics g) paint() this object.
void	rebuild() rebuild (=re-initialize) this object given its current points, attributes, transformation, and the global Java2D enable status.
void	rotate(java.awt.Point anchor, double angle_in_rad) Try to rotate a FigEllipse, as best as we currently can.
void	setAttributes(FigAttribs attribs) set object attributes
void	setCenterAndRadius(java.awt.Point p1, java.awt.Point p2)
void	setPoints(java.awt.Point[] pp) set PointList (if any), world-coordinates.
void	setTrafo(FigTrafo2D trafo) set transformation
boolean	supportsPointOps() yes, we support the point operations (actually, only movePoint).
java.lang.String	toString() debug object information
(package private) void	update_bbox()
void	update(FigAttribs new_attribs) update(): get the new text attribs and recalculate the bbox.

Methods inherited from class jfig.objects.FigBaseobject

build_sc_bbox, clonePoints, deselect, get_sc_bbox, getAttributes, getBbox, getComment, getLayer, getPosition, getSyncRedrawFlag, getText, getTimestamp, getTrafo, initialize, isSelected, isShowPoints, isVisible, isVisible, keyPressed, manhattan, message, minDistanceEuclid, numPoints, paint, paintSave, reset_debug, scale, select, set_debug, setComment, setConsole, setObjectPainter, setSyncRedrawFlag, setText, setVisible, showPoints, writeAsResource

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

renderer

FigRenderer renderer

center

java.awt.Point center

size

java.awt.Point size

Constructor Detail

FigEllipse

public FigEllipse(java.awt.Point p1,
                  java.awt.Point p2,
                  FigAttribs attribs,
                  FigTrafo2D trafo)

Basic FigEllipse constructor, center Point p1. Point p2 is used to specify the radius(es).

Method Detail

createRenderer

public void createRenderer()

setAttributes

public void setAttributes(FigAttribs attribs)

Description copied from class: FigBaseobject

set object attributes

Specified by:

setAttributes in interface FigObject

Overrides:

setAttributes in class FigBaseobject

getCenterPoint

public java.awt.Point getCenterPoint()

getRadiusPoint

public java.awt.Point getRadiusPoint()

setTrafo

public void setTrafo(FigTrafo2D trafo)

Description copied from class: FigBaseobject

set transformation

Specified by:

setTrafo in interface FigObject

Overrides:

setTrafo in class FigBaseobject

setCenterAndRadius

public void setCenterAndRadius(java.awt.Point p1,
                               java.awt.Point p2)

rebuild

public void rebuild()

Description copied from interface: FigObject

rebuild (=re-initialize) this object given its current points, attributes, transformation, and the global Java2D enable status. This is a potentially expensive but sometimes necessary operation.

Specified by:

rebuild in interface FigObject

Overrides:

rebuild in class FigBaseobject

getPoints

public java.awt.Point[] getPoints()

Description copied from class: FigBaseobject

return a list of all Points of this objects. No Points in a FigBaseobject.

Specified by:

getPoints in interface FigObject

Overrides:

getPoints in class FigBaseobject

setPoints

public void setPoints(java.awt.Point[] pp)

Description copied from interface: FigObject

set PointList (if any), world-coordinates. This function should be used by input file parsers to speed up the construction of polylines, polygons, or splines with many points.

Specified by:

setPoints in interface FigObject

Overrides:

setPoints in class FigBaseobject

supportsPointOps

public boolean supportsPointOps()

yes, we support the point operations (actually, only movePoint).

Specified by:

supportsPointOps in interface FigObject

Overrides:

supportsPointOps in class FigBaseobject

isClosed

public boolean isClosed()

Description copied from interface: FigObject

return true if this object is 'closed' (polygon vs. polyline, etc)

Specified by:

isClosed in interface FigObject

Overrides:

isClosed in class FigBaseobject

appendPoint

public void appendPoint(java.awt.Point wp)

No, we cannot append, insert, or delete a Point in a rectangle. Therefore, these functions just return without doing anything.

(To support these operations, we might convert the FigRectangle automatically into a polygon. But currently I don't want this.)

Specified by:

appendPoint in interface FigObject

Overrides:

appendPoint in class FigBaseobject

deletePoint

public java.awt.Point deletePoint(java.awt.Point wp)

Description copied from class: FigBaseobject

delete the Point with specified coords from our Point list.

Specified by:

deletePoint in interface FigObject

Overrides:

deletePoint in class FigBaseobject

insertPoint

public void insertPoint(java.awt.Point wp,
                        java.awt.Point wpnew)

Description copied from class: FigBaseobject

insert a Point wp into our Point list after Point wprev.

Specified by:

insertPoint in interface FigObject

Overrides:

insertPoint in class FigBaseobject

getMovePointNeighbors

public java.awt.Point[] getMovePointNeighbors(java.awt.Point wp)

getMovePointNeighbors( Point wp ): find the nearest Point of the rectangle and return an array with the opposite corner, to allow the main editor correct rubberbanding.

Specified by:

getMovePointNeighbors in interface FigObject

Overrides:

getMovePointNeighbors in class FigBaseobject

movePoint

public void movePoint(java.awt.Point wp,
                      java.awt.Point wpnew)

move the Point wp to position wpnew. Note that this method will search and move the rectangle corner nearest to wp, independent of the actual distance.

Specified by:

movePoint in interface FigObject

Overrides:

movePoint in class FigBaseobject

getNearestPoint

public java.awt.Point getNearestPoint(java.awt.Point wp)

Description copied from class: FigBaseobject

return the point of this object nearest to Point wp, if any.

Specified by:

getNearestPoint in interface FigObject

Overrides:

getNearestPoint in class FigBaseobject

getNeighborPoints

public java.awt.Point[] getNeighborPoints(java.awt.Point wp)

Description copied from class: FigBaseobject

get the two neighbor Points for the specified Point wp from our Point list.

Specified by:

getNeighborPoints in interface FigObject

Overrides:

getNeighborPoints in class FigBaseobject

update_bbox

void update_bbox()

paint

public void paint(java.awt.Graphics g)

Description copied from class: FigBaseobject

paint() this object. This function currently handles drawing the bounding box corners with emply rectangles for (showPoint) and with filled rectangles for (selected). Subclasses can therefore directly call this method to implement drawing of (showPoints) and (selected) objects.

Specified by:

paint in interface FigObject

Overrides:

paint in class FigBaseobject

move

public void move(int dx,
                 int dy)

Description copied from class: FigBaseobject

method stub for the move() method

Specified by:

move in interface FigObject

Overrides:

move in class FigBaseobject

copy

public FigObject copy()

build a copy of this FigEllipse object.

Specified by:

copy in interface FigObject

Overrides:

copy in class FigBaseobject

mirrorX

public void mirrorX(int mirror_x,
                    int mirror_y)

mirrorX():

Specified by:

mirrorX in interface FigObject

Overrides:

mirrorX in class FigBaseobject

mirrorY

public void mirrorY(int mirror_x,
                    int mirror_y)

mirrorY():

Specified by:

mirrorY in interface FigObject

Overrides:

mirrorY in class FigBaseobject

update

public void update(FigAttribs new_attribs)

update(): get the new text attribs and recalculate the bbox.

Specified by:

update in interface FigObject

Overrides:

update in class FigBaseobject

canRotate

public boolean canRotate(double angle_in_rad)

Specified by:

canRotate in interface FigObject

Overrides:

canRotate in class FigBaseobject

rotate

public void rotate(java.awt.Point anchor,
                   double angle_in_rad)

Try to rotate a FigEllipse, as best as we currently can. Due to the very incomplete status of FigEllipse with respect to rotation angle != 0, we use the following hack: First, we retrieve the current values of the ellipse center point and the "radius point" (which gives the ellipse size for the un-rotated ellipse). Next, we rotate the center point using a standard rotation matrix. Then, we update the FigAttribs.fig_ellipse_angle value. However, we keep the original (un-rotated!) value of the radius. Finally, we are ready to call rebuild. This algorithm provides the correct visual for the ellipse, even if the bounding box still is sub-optimal.

Specified by:

rotate in interface FigObject

Overrides:

rotate in class FigBaseobject

minDistance

public double minDistance(java.awt.Point wp)

return the minimum distance of any points (edges,corners) of this object and the Point wp. Coordinates are world-coordinates, the distance is therefore given as a multiple of 2400 dpi.

Specified by:

minDistance in interface FigObject

Overrides:

minDistance in class FigBaseobject

toString

public java.lang.String toString()

debug object information

Specified by:

toString in interface FigObject

Overrides:

toString in class FigBaseobject