Class TGArcOp

java.lang.Object
  TGArcOp

All Implemented Interfaces:

TGGraphicsOp

public class TGArcOp
extends java.lang.Object
implements TGGraphicsOp

This class implements a TurtleGraphics ARC graphics operation.

Constructor Summary

TGArcOp(TGPoint origin, double radius, double startAng, double arcAng, java.awt.Color color, int penSz)
Return a TGArcOp object, a TGGraphicsOp, which can be queued for TGCanvas to paint.

TGArcOp(TGPoint origin, double radius, double strtAng, double arcAng, java.awt.Color color, int penSz, float[] penPat)
Return a TGArcOp object, a TGGraphicsOp, which can be queued for TGCanvas to paint.

Method Summary

java.awt.Rectangle

doIt(java.awt.image.BufferedImage inMemoryImage) Perform an operation on (do something) with the provided Image and return a Rectangle which is a cliprect for the area of the Image that was changed.

Methods inherited from class java.lang.Object

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

Constructor Detail

TGArcOp

public TGArcOp(TGPoint origin,
               double radius,
               double startAng,
               double arcAng,
               java.awt.Color color,
               int penSz)

Return a TGArcOp object, a TGGraphicsOp, which can be queued for TGCanvas to paint.

Parameters:

origin - center of the arc, a TGPoint

radius - radius of the arc

startAng - Start angle in radians; 0 is along the positive X axis, radians increase counter-clockwise

arcAng - Angular extent of the arc, relative to startAngle, in radians as with startAngle

color - pen color

penSz - pen size, width of the arc

TGArcOp

public TGArcOp(TGPoint origin,
               double radius,
               double strtAng,
               double arcAng,
               java.awt.Color color,
               int penSz,
               float[] penPat)

Return a TGArcOp object, a TGGraphicsOp, which can be queued for TGCanvas to paint.

Parameters:

origin - center/origin of the arc, a TGPoint

radius - radius of the arc

strtAng - Start angle in radians; 0 is along the positive X axis, radians increase counter-clockwise

arcAng - Angular extent of the arc, relative to startAngle, in radians as with startAngle

color - pen color

penSz - pen size, width of the arc

penPat - dashed line pattern. even elements are draw amounts, odd elements are skip amounts

Method Detail

doIt

public java.awt.Rectangle doIt(java.awt.image.BufferedImage inMemoryImage)

Perform an operation on (do something) with the provided Image and return a Rectangle which is a cliprect for the area of the Image that was changed.

Specified by:

doIt in interface TGGraphicsOp

Parameters:

inMemoryImage - the object on which to draw

Returns:

Rectangle bounds of the pixels in the Image that were changed