ij.gui
Class PolygonRoi

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

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

EllipseRoi, 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 float[]	xpf
protected float[]	xSpline
protected int[]	yp
protected int[]	yp2
protected float[]	ypf
protected float[]	ySpline

Fields inherited from class ij.gui.Roi

ANGLE, asp_bk, aspect, cachedMask, center, clipboard, clipHeight, clipWidth, clipX, clipY, COMPOSITE, constrain, CONSTRUCTING, defaultFillColor, fillColor, FREELINE, FREEROI, HANDLE_SIZE, handleColor, ic, ignoreClipRect, imp, instanceColor, LINE, lineWidth, mag, MOVING, MOVING_HANDLE, nonScalable, NORMAL, NOT_PASTING, oldHeight, oldWidth, oldX, oldY, onePixelWide, OVAL, overlay, pasteMode, POINT, POLYGON, POLYLINE, previousRoi, RECTANGLE, RESIZING, ROIColor, stroke, strokeColor, TRACED_ROI, type, updateFullWindow, wideLine, xMax, yMax

Constructor Summary

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

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

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

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

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

Method Summary

protected void	addOffset()
protected int	clipRectMargin()
Object	clone() Returns a copy of this PolygonRoi.
boolean	contains(int x, int y)
void	deleteHandle(double ox, double oy)
void	draw(Graphics g)
void	drawPixels(ImageProcessor ip) Draws the selection outline on the specified ImageProcessor.
void	enableSubPixelResolution()
void	exitConstructingMode()
void	fitSpline()
void	fitSpline(int evaluationPoints)
void	fitSplineForStraightening()
double	getAngle() Returns the angle in degrees between the first two segments of this polyline.
Polygon	getConvexHull() Uses the gift wrap algorithm to find the convex hull and returns it as a Polygon.
String	getDebugInfo()
boolean	getDrawOffset() Returns true if this is a PolygonRoi that supports sub-pixel resolution and polygons are drawn on zoomed images offset down and to the right by 0.5 pixels..
FloatPolygon	getFloatPolygon() Returns this polygon or polyline as float arrays.
FloatPolygon	getInterpolatedPolygon(double interval, boolean smooth) Returns, as a FloatPolygon, an interpolated version of this selection with points spaced 'interval' pixels apart.
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.
Polygon	getNonSplineCoordinates()
FloatPolygon	getNonSplineFloatPolygon()
Polygon	getPolygon() Returns this PolygonRoi as a Polygon.
double	getUncalibratedLength()
int[]	getXCoordinates() Obsolete; replaced by either getPolygon() or getFloatPolygon().
int[]	getYCoordinates() Obsolete; replaced by either getPolygon() or getFloatPolygon().
protected void	grow(int sx, int sy)
protected void	handleMouseUp(int sx, int sy) With segmented selections, ignore first mouse up and finalize when user double-clicks, control-clicks or clicks in start box.
int	isHandle(int sx, int sy) Returns a handle number if the specified screen coordinates are inside or near a handle, otherwise returns -1.
boolean	isSplineFit() Returns 'true' if this selection has been fitted with a spline.
protected void	mouseDownInHandle(int handle, int sx, int sy)
void	mouseMoved(MouseEvent e)
protected void	moveHandle(int sx, int sy)
void	removeSplineFit()
void	setDrawOffset(boolean drawOffset)
void	setLocation(double x, double y) Set the location of the ROI in image coordinates.
boolean	subPixelResolution() Returns true if this is a slection that supports sub-pixel resolution.
protected void	updatePolygon()

Methods inherited from class ij.gui.Roi

abortPaste, copyAttributes, drawOverlay, drawPixels, endPaste, equals, getAngle, getBoundingRect, getBounds, getColor, getCornerDiameter, getCPosition, getCurrentPasteMode, getDefaultFillColor, getFeretsDiameter, getFeretValues, getFillColor, getFloatAngle, getFloatBounds, getFloatHeight, getFloatWidth, getHashCode, getImage, getImageID, getInterpolatedPolygon, getInterpolatedPolygon, getMagnification, getName, getPasteMode, getPosition, getProperties, getProperty, getPropertyCount, getPrototypeOverlay, getRoundRectArcSize, getScaledStroke, getState, getStroke, getStrokeColor, getStrokeWidth, getTPosition, getType, getTypeAsString, getXBase, getYBase, getZPosition, handleMouseDown, handleMouseDrag, isActiveOverlayRoi, isArea, isDrawingTool, isLine, isVisible, mouseDragged, mouseReleased, nudge, nudgeCorner, screenX, screenXD, screenY, screenYD, setColor, setCornerDiameter, setDefaultFillColor, setFillColor, setIgnoreClipRect, setImage, setInstanceColor, setLineWidth, setLocation, setName, setNonScalable, setPasteMode, setPosition, setPosition, setProperties, setProperty, setPrototypeOverlay, setRoundRectArcSize, setStroke, setStrokeColor, setStrokeWidth, setStrokeWidth, showStatus, startPaste, temporarilyHide, toFloat, toInt, toInt, toIntR, toString, update, updateClipRect, updateWideLine

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

xpf

protected float[] xpf

ypf

protected float[] ypf

xp2

protected int[] xp2

yp2

protected int[] yp2

nPoints

protected int nPoints

xSpline

protected float[] xSpline

ySpline

protected float[] ySpline

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(float[] xPoints,
                  float[] yPoints,
                  int nPoints,
                  int type)

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

PolygonRoi

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

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

PolygonRoi

public PolygonRoi(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(FloatPolygon p,
                  int type)

Creates a new polygon or polyline ROI from a FloatPolygon. 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)

Deprecated.

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(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()

mouseMoved

public void mouseMoved(MouseEvent e)

Overrides:

mouseMoved in class Roi

exitConstructingMode

public void exitConstructingMode()

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

deleteHandle

public void deleteHandle(double ox,
                         double oy)

fitSpline

public void fitSpline(int evaluationPoints)

fitSpline

public void fitSpline()

removeSplineFit

public void removeSplineFit()

isSplineFit

public boolean isSplineFit()

Returns 'true' if this selection has been fitted with a spline.

fitSplineForStraightening

public void fitSplineForStraightening()

getUncalibratedLength

public double getUncalibratedLength()

handleMouseUp

protected void handleMouseUp(int sx,
                             int sy)

With segmented selections, ignore first mouse up and finalize when user double-clicks, control-clicks or clicks in start box.

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

getAngle

public double getAngle()

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

Overrides:

getAngle in class Roi

getNCoordinates

public int getNCoordinates()

Returns the number of XY coordinates.

getXCoordinates

public int[] getXCoordinates()

Obsolete; replaced by either getPolygon() or getFloatPolygon().

getYCoordinates

public int[] getYCoordinates()

Obsolete; replaced by either getPolygon() or getFloatPolygon().

getNonSplineCoordinates

public Polygon getNonSplineCoordinates()

getNonSplineFloatPolygon

public FloatPolygon getNonSplineFloatPolygon()

getPolygon

public 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)

getFloatPolygon

public FloatPolygon getFloatPolygon()

Returns this polygon or polyline as float arrays.

Overrides:

getFloatPolygon in class Roi

subPixelResolution

public boolean subPixelResolution()

Description copied from class: Roi

Returns true if this is a slection that supports sub-pixel resolution.

Overrides:

subPixelResolution in class Roi

getConvexHull

public Polygon getConvexHull()

Uses the gift wrap algorithm to find the convex hull and returns it as a Polygon.

Overrides:

getConvexHull in class Roi

getInterpolatedPolygon

public FloatPolygon getInterpolatedPolygon(double interval,
                                           boolean smooth)

Description copied from class: Roi

Returns, as a FloatPolygon, an interpolated version of this selection with points spaced 'interval' pixels apart. If 'smooth' is true, traced and freehand selections are first smoothed using a 3 point running average.

Overrides:

getInterpolatedPolygon in class Roi

clipRectMargin

protected int clipRectMargin()

Overrides:

clipRectMargin in class Roi

clone

public Object clone()

Returns a copy of this PolygonRoi.

Overrides:

clone in class Roi

getDrawOffset

public boolean getDrawOffset()

Description copied from class: Roi

Returns true if this is a PolygonRoi that supports sub-pixel resolution and polygons are drawn on zoomed images offset down and to the right by 0.5 pixels..

Overrides:

getDrawOffset in class Roi

setDrawOffset

public void setDrawOffset(boolean drawOffset)

Overrides:

setDrawOffset in class Roi

setLocation

public void setLocation(double x,
                        double y)

Description copied from class: Roi

Set the location of the ROI in image coordinates.

Overrides:

setLocation in class Roi

enableSubPixelResolution

public void enableSubPixelResolution()

Overrides:

enableSubPixelResolution in class Roi

getDebugInfo

public String getDebugInfo()

Overrides:

getDebugInfo in class Roi