com.partnersoft.geometry
Class PolylineArray

java.lang.Object
  com.partnersoft.data.DataBuffer
      com.partnersoft.geometry.PolylineArray

All Implemented Interfaces:

java.io.Serializable

public class PolylineArray
extends DataBuffer

A list of polylines. Has some handy construction methods to help with clipping etc.

Author:

Paul Reavis Copyright 2002 Partner Software, Inc.

See Also:

Serialized Form

Field Summary

DoubleBuffer[]

array

Fields inherited from class com.partnersoft.data.DataBuffer

arrayObject, capacity, end, growthCap, growthMin, start

Constructor Summary

PolylineArray()
Creates an empty polyline array.

PolylineArray(int size)
Creates a polyline array of the given size.

Method Summary

void	add(Polyline addMe)
void	addAll(PolylineArray nother)
void	addPoint(double x, double y) Adds a new point, no questions asked.
void	addSegment(double x1, double y1, double x2, double y2)
void	addSegment(Line line) Adds a new segment.
void	newArray(int size) Allocates a new, empty array of the given size and assign it to the arrayObject property.
void	startPolyline() Starts a new, empty polyline.

Methods inherited from class com.partnersoft.data.DataBuffer

append, clear, clone, copy, copyTo, getSize, insert, isEmpty, makeRoomFor, makeRoomFor, pack, remove, setToMatch, subsection, tidy, toString

Methods inherited from class java.lang.Object

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

Field Detail

array

public DoubleBuffer[] array

Constructor Detail

PolylineArray

public PolylineArray()

Creates an empty polyline array. Contents array is left null!

PolylineArray

public PolylineArray(int size)

Creates a polyline array of the given size.

Method Detail

newArray

public final void newArray(int size)

Description copied from class: DataBuffer

Allocates a new, empty array of the given size and assign it to the arrayObject property. It is assumed that subclasses will also set it to a variable of the correct class (e.g. char[]) for ease of access as well. Copying of existing contents is managed by this superclass.

Specified by:

newArray in class DataBuffer

add

public void add(Polyline addMe)

addAll

public final void addAll(PolylineArray nother)

addPoint

public final void addPoint(double x,
                           double y)

Adds a new point, no questions asked. Creates a new polyline if there is none or startNew is true, otherwise adds it to last polyline.

startPolyline

public final void startPolyline()

Starts a new, empty polyline. Use to "lift pen".

addSegment

public final void addSegment(Line line)

Adds a new segment. If there is no polyline, starts one. If there is, and it's empty, just adds it this segment to it. If there is one, and it's not empty, first compares the first point of the segment to see if it matches the last point in the polyline. if so, adds the second point of the segment to the polyline (thus adding the segment). Otherwise, starts a new polyline and adds the segment to it.

addSegment

public final void addSegment(double x1,
                             double y1,
                             double x2,
                             double y2)