AreaMetricsBuilder (JHotDraw8 2D Geometry Classes 0.3 API)

java.lang.Object

org.jhotdraw8.geom.AbstractPathBuilder<Double>

org.jhotdraw8.geom.AreaMetricsBuilder

All Implemented Interfaces:: PathBuilder<Double>

public class AreaMetricsBuilder extends AbstractPathBuilder<Double>

Computes the area of a path. This only makes sense for closed paths.

FIXME implement doCurveTo and doQuadTo

XXX Only works with consolidated inputs, for example from a Area object

Constructor Summary

Constructors

Constructor

Description

AreaMetricsBuilder()
Method Summary

Modifier and Type

Method

Description

Double

build()

Builds something.

protected void

doClosePath(double lastX, double lastY, double lastMoveToX, double lastMoveToY)

protected void

doCurveTo(double lastX, double lastY, double x1, double y1, double x2, double y2, double x, double y)

protected void

doLineTo(double lastX, double lastY, double x, double y)

protected void

doMoveTo(double x, double y)

protected void

doQuadTo(double lastX, double lastY, double x1, double y1, double x, double y)

Methods inherited from class org.jhotdraw8.geom.AbstractPathBuilder
arcTo, closePath, curveTo, doArcTo, doSmoothCurveTo, doSmoothQuadTo, getLastCX, getLastCY, getLastMoveToX, getLastMoveToY, getLastPoint, getLastX, getLastY, lineTo, moveTo, needsMoveTo, quadTo, setLastCX, setLastCY, setLastX, setLastY, smoothCurveTo, smoothQuadTo

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jhotdraw8.geom.PathBuilder
circle, counterClockwiseCircle, curveTo, lineTo, moveTo, pathDone, quadTo, smoothCurveTo, smoothQuadTo

Constructor Details
- AreaMetricsBuilder
  
  public AreaMetricsBuilder()
Method Details
- doClosePath
  
  protected void doClosePath(double lastX, double lastY, double lastMoveToX, double lastMoveToY)
  
  Specified by:
  
  doClosePath in class AbstractPathBuilder<Double>
- doCurveTo
  
  protected void doCurveTo(double lastX, double lastY, double x1, double y1, double x2, double y2, double x, double y)
  
  Specified by:
  
  doCurveTo in class AbstractPathBuilder<Double>
- doLineTo
  
  protected void doLineTo(double lastX, double lastY, double x, double y)
  
  Specified by:
  
  doLineTo in class AbstractPathBuilder<Double>
- doMoveTo
  
  protected void doMoveTo(double x, double y)
  
  Specified by:
  
  doMoveTo in class AbstractPathBuilder<Double>
- doQuadTo
  
  protected void doQuadTo(double lastX, double lastY, double x1, double y1, double x, double y)
  
  Specified by:
  
  doQuadTo in class AbstractPathBuilder<Double>
- build
  
  public Double build()
  
  Description copied from interface: PathBuilder
  
  Builds something.
  Some implementations may guarantee a non-null return value.