ij.gui
Class Line

java.lang.Object
  ij.gui.Roi
      ij.gui.Line

All Implemented Interfaces:

java.lang.Cloneable

public class Line
extends Roi

This class represents a straight line selection.

Field Summary

int	x1
int	x2
int	y1
int	y2

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

Line(int ox, int oy, ImagePlus imp)
Creates a new user-generated straight line selection.

Line(int ox1, int oy1, int ox2, int oy2, ImagePlus imp)
Creates a new straight line selection using the specified starting and ending offscreen coordinates.

Method Summary

boolean	contains(int x, int y)
void	draw(java.awt.Graphics g) Draws this line in the image.
void	drawPixels()
double	getLength() Returns the length of this line.
double[]	getPixels() Returns the pixel values along this line.
double	getRawLength() Returns the length of this line in pixels.
static int	getWidth()
protected void	grow(int xend, int yend)
void	nudgeCorner(int key) Nudge end point of line by one pixel.
static void	setWidth(int w)

Methods inherited from class ij.gui.Roi

abortPaste, clone, endPaste, getAngle, getBoundingRect, getColor, getMask, getState, getType, handleMouseDown, handleMouseDrag, handleMouseUp, nudge, 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

x1

public int x1

y1

public int y1

x2

public int x2

y2

public int y2

Constructor Detail

Line

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

Creates a new user-generated straight line selection. 'ox' and 'oy' are offscreen coordinates that specify the start of the line. The user will determine the end of the line interactively using rubber banding.

Line

public Line(int ox1,
            int oy1,
            int ox2,
            int oy2,
            ImagePlus imp)

Creates a new straight line selection using the specified starting and ending offscreen coordinates.

Method Detail

grow

protected void grow(int xend,
                    int yend)

Overrides:

grow in class Roi

draw

public void draw(java.awt.Graphics g)

Draws this line in the image.

Overrides:

draw in class Roi

getLength

public double getLength()

Returns the length of this line.

Overrides:

getLength in class Roi

getRawLength

public double getRawLength()

Returns the length of this line in pixels.

getPixels

public double[] getPixels()

Returns the pixel values along this line.

drawPixels

public void drawPixels()

Overrides:

drawPixels in class Roi

contains

public boolean contains(int x,
                        int y)

Overrides:

contains in class Roi

getWidth

public static int getWidth()

setWidth

public static void setWidth(int w)

nudgeCorner

public void nudgeCorner(int key)

Nudge end point of line by one pixel.

Overrides:

nudgeCorner in class Roi