ij.gui
Class PolygonRoi

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

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

FreehandRoi

public class PolygonRoi
extends Roi

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

Field Summary

protected java.awt.Graphics	g
protected int	maxPoints
protected int	nPoints
protected int[]	xp
protected int[]	xp2
protected int[]	yp
protected int[]	yp2

Fields inherited from class ij.gui.Roi

clipboard, clipHeight, clipWidth, clipX, clipY, constrain, CONSTRUCTING, FREELINE, FREEROI, HANDLE_SIZE, ic, imp, LINE, MOVING, NORMAL, oldHeight, oldWidth, oldX, oldY, OVAL, pasteMode, 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)
Creates a new polygon or polyline ROI from x and y coordinate arrays.

PolygonRoi(int ox, int oy, ImagePlus imp)
Creates a new user-generated polygon or polyline ROI.

Method Summary

boolean	contains(int x, int y)
void	draw(java.awt.Graphics g)
void	drawPixels()
double	getAngle() Returns the angle in degrees between the first two segments of this polyline.
double	getLength() Returns the perimeter (for ROIs) or length (for lines).
int[]	getMask()
int	getNCoordinates() Returns the number of XY coordinates.
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 x, int y)
protected void	handleMouseUp(int sx, int sy)
protected void	updatePolygon()

Methods inherited from class ij.gui.Roi

abortPaste, clone, endPaste, getAngle, getBoundingRect, getColor, getState, getType, handleMouseDown, handleMouseDrag, nudge, nudgeCorner, setColor, setImage, setLocation, setPasteMode, showStatus, toString, updateClipRect

Methods inherited from class java.lang.Object

equals, 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

g

protected java.awt.Graphics g

Constructor Detail

PolygonRoi

public PolygonRoi(int ox,
                  int oy,
                  ImagePlus imp)

Creates a new user-generated polygon or polyline ROI.

PolygonRoi

public PolygonRoi(int[] xPoints,
                  int[] yPoints,
                  int nPoints,
                  ImagePlus imp,
                  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 or Roi.POLYLINE.

Method Detail

draw

public void draw(java.awt.Graphics g)

Overrides:

draw in class Roi

drawPixels

public void drawPixels()

Overrides:

drawPixels in class Roi

grow

protected void grow(int x,
                    int y)

Overrides:

grow in class Roi

updatePolygon

protected void updatePolygon()

handleMouseUp

protected void handleMouseUp(int sx,
                             int sy)

Overrides:

handleMouseUp in class Roi

contains

public boolean contains(int x,
                        int y)

Overrides:

contains in class Roi

getMask

public int[] getMask()

Overrides:

getMask in class Roi

getLength

public double getLength()

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

Overrides:

getLength 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.