ij.gui
Class PolygonRoi

java.lang.Object
  ij.gui.Roi
      ij.gui.PolygonRoi

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

Direct Known Subclasses:

FreehandRoi, PointRoi

public class PolygonRoi

extends Roi

This class represents a polygon region of interest or polyline of interest.

See Also:

Serialized Form

Field Summary

protected int	maxPoints
protected int	nPoints
protected int	splinePoints
protected int[]	xp
protected int[]	xp2
protected int[]	xScreenSpline
protected int[]	xSpline
protected int[]	yp
protected int[]	yp2
protected int[]	yScreenSpline
protected int[]	ySpline

Fields inherited from class ij.gui.Roi

ANGLE, cachedMask, center, clipboard, clipHeight, clipWidth, clipX, clipY, COMPOSITE, constrain, CONSTRUCTING, FREELINE, FREEROI, HANDLE_SIZE, handleColor, ic, imp, instanceColor, LINE, mag, MOVING, MOVING_HANDLE, name, NORMAL, NOT_PASTING, oldHeight, oldWidth, oldX, oldY, OVAL, pasteMode, POINT, POLYGON, POLYLINE, previousRoi, RECTANGLE, RESIZING, ROIColor, TRACED_ROI, type, updateFullWindow, xMax, yMax

Constructor Summary

PolygonRoi(int[] xPoints, int[] yPoints, int nPoints, ImagePlus imp, int type)
Obsolete

PolygonRoi(int[] xPoints, int[] yPoints, int nPoints, int type)
Creates a new polygon or polyline ROI from x and y coordinate arrays.

PolygonRoi(int sx, int sy, ImagePlus imp)
Starts the process of creating a new user-generated polygon or polyline ROI.

PolygonRoi(java.awt.Polygon p, int type)
Creates a new polygon or polyline ROI from a Polygon.

Method Summary

protected void	addOffset()
java.lang.Object	clone() Returns a copy of this PolygonRoi.
boolean	contains(int x, int y)
void	draw(java.awt.Graphics g)
void	drawPixels(ImageProcessor ip) Draws the selection outline on the specified ImageProcessor.
void	fitSpline(int evaluationPoints)
double	getAngle() Returns the angle in degrees between the first two segments of this polyline.
double	getFeretsDiameter() Returns Feret's diameter, the greatest distance between any two points along the ROI boundary.
double	getLength() Returns the perimeter (for ROIs) or length (for lines).
ImageProcessor	getMask() Override Roi.nudge() to support splines.
int	getNCoordinates() Returns the number of XY coordinates.
java.awt.Polygon	getPolygon() Returns this PolygonRoi as a Polygon.
int[]	getXCoordinates() Returns this ROI's X-coordinates, which are relative to origin of the bounding box.
int[]	getYCoordinates() Returns this ROI's Y-coordinates, which are relative to origin of the bounding box.
protected void	grow(int sx, int sy)
protected void	handleMouseUp(int sx, int sy)
int	isHandle(int sx, int sy) Returns a handle number if the specified screen coordinates are inside or near a handle, otherwise returns -1.
protected void	mouseDownInHandle(int handle, int sx, int sy)
protected void	moveHandle(int sx, int sy)
protected void	updatePolygon()

Methods inherited from class ij.gui.Roi

abortPaste, drawPixels, endPaste, equals, getAngle, getBoundingRect, getBounds, getColor, getCurrentPasteMode, getName, getPasteMode, getState, getType, getTypeAsString, handleMouseDown, handleMouseDrag, isArea, isLine, isVisible, nudge, nudgeCorner, setColor, setImage, setInstanceColor, setLocation, setName, setPasteMode, showStatus, startPaste, toString, update, updateClipRect

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

maxPoints

protected int maxPoints

xp

protected int[] xp

yp

protected int[] yp

xp2

protected int[] xp2

yp2

protected int[] yp2

nPoints

protected int nPoints

xSpline

protected int[] xSpline

ySpline

protected int[] ySpline

xScreenSpline

protected int[] xScreenSpline

yScreenSpline

protected int[] yScreenSpline

splinePoints

protected int splinePoints

Constructor Detail

PolygonRoi

public PolygonRoi(int[] xPoints,
                  int[] yPoints,
                  int nPoints,
                  int type)

Creates a new polygon or polyline ROI from x and y coordinate arrays. Type must be Roi.POLYGON, Roi.FREEROI, Roi.TRACED_ROI, Roi.POLYLINE, Roi.FREELINE or Roi.ANGLE.

PolygonRoi

public PolygonRoi(java.awt.Polygon p,
                  int type)

Creates a new polygon or polyline ROI from a Polygon. Type must be Roi.POLYGON, Roi.FREEROI, Roi.TRACED_ROI, Roi.POLYLINE, Roi.FREELINE or Roi.ANGLE.

PolygonRoi

public PolygonRoi(int[] xPoints,
                  int[] yPoints,
                  int nPoints,
                  ImagePlus imp,
                  int type)

Obsolete

PolygonRoi

public PolygonRoi(int sx,
                  int sy,
                  ImagePlus imp)

Starts the process of creating a new user-generated polygon or polyline ROI.

Method Detail

draw

public void draw(java.awt.Graphics g)

Overrides:

draw in class Roi

drawPixels

public void drawPixels(ImageProcessor ip)

Description copied from class: Roi

Draws the selection outline on the specified ImageProcessor.

Overrides:

drawPixels in class Roi

See Also:

ImageProcessor.setColor(java.awt.Color), ImageProcessor.setLineWidth(int)

grow

protected void grow(int sx,
                    int sy)

Overrides:

grow in class Roi

updatePolygon

protected void updatePolygon()

moveHandle

protected void moveHandle(int sx,
                          int sy)

Overrides:

moveHandle in class Roi

mouseDownInHandle

protected void mouseDownInHandle(int handle,
                                 int sx,
                                 int sy)

Overrides:

mouseDownInHandle in class Roi

fitSpline

public void fitSpline(int evaluationPoints)

handleMouseUp

protected void handleMouseUp(int sx,
                             int sy)

Overrides:

handleMouseUp in class Roi

addOffset

protected void addOffset()

contains

public boolean contains(int x,
                        int y)

Overrides:

contains in class Roi

isHandle

public int isHandle(int sx,
                    int sy)

Returns a handle number if the specified screen coordinates are inside or near a handle, otherwise returns -1.

Overrides:

isHandle in class Roi

getMask

public ImageProcessor getMask()

Override Roi.nudge() to support splines.

Overrides:

getMask in class Roi

getLength

public double getLength()

Returns the perimeter (for ROIs) or length (for lines).

Overrides:

getLength in class Roi

getFeretsDiameter

public double getFeretsDiameter()

Returns Feret's diameter, the greatest distance between any two points along the ROI boundary.

Overrides:

getFeretsDiameter in class Roi

getAngle

public double getAngle()

Returns the angle in degrees between the first two segments of this polyline.

getNCoordinates

public int getNCoordinates()

Returns the number of XY coordinates.

getXCoordinates

public int[] getXCoordinates()

Returns this ROI's X-coordinates, which are relative to origin of the bounding box.

getYCoordinates

public int[] getYCoordinates()

Returns this ROI's Y-coordinates, which are relative to origin of the bounding box.

getPolygon

public java.awt.Polygon getPolygon()

Returns this PolygonRoi as a Polygon.

Overrides:

getPolygon in class Roi

See Also:

ImageProcessor.setRoi(java.awt.Rectangle), ImageProcessor.drawPolygon(java.awt.Polygon), ImageProcessor.fillPolygon(java.awt.Polygon)

clone

public java.lang.Object clone()

Returns a copy of this PolygonRoi.

Overrides:

clone in class Roi