walk.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

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<A NAME="remove(org.geotools.graph.structure.Node)"><!-- --></A><H3>
remove</H3>
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public void <B>remove</B>(<A HREF="../../../../org/geotools/graph/structure/Node.html" title="interface in org.geotools.graph.structure">Node</A>&nbsp;node)</PRE>
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<DD>Removes a node from the walk. Removing a node clears the edge list which 
  will be recalculated on the next call to getEdges().
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<DT><B>Parameters:</B><DD><CODE>node</CODE> - Node to remove from the walk.</DL>
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<A NAME="remove(int)"><!-- --></A><H3>
remove</H3>
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public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <B>remove</B>(int&nbsp;index)</PRE>
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<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html#remove(int)" title="class or interface in java.util">remove</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A></CODE></DL>
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<A NAME="remove(java.lang.Object)"><!-- --></A><H3>
remove</H3>
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public boolean <B>remove</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;o)</PRE>
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<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html#remove(java.lang.Object)" title="class or interface in java.util">remove</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A></CODE></DL>
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<A NAME="removeAll(java.util.Collection)"><!-- --></A><H3>
removeAll</H3>
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public boolean <B>removeAll</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A>&nbsp;c)</PRE>
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<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html#removeAll(java.util.Collection)" title="class or interface in java.util">removeAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A></CODE></DL>
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<A NAME="isClosed()"><!-- --></A><H3>
isClosed</H3>
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public boolean <B>isClosed</B>()</PRE>
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<DD>Determines if the walk is closed. A closed walk is one in which the 
 first and last nodes are the same.
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<DT><B>Returns:</B><DD>True if closed, otherwise false.</DL>
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<A NAME="getFirst()"><!-- --></A><H3>
getFirst</H3>
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public <A HREF="../../../../org/geotools/graph/structure/Node.html" title="interface in org.geotools.graph.structure">Node</A> <B>getFirst</B>()</PRE>
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<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/graph/path/NodeSequence.html" title="interface in org.geotools.graph.path">NodeSequence</A></CODE></B></DD>
<DD>Returns the first node in the sequence.
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/graph/path/NodeSequence.html#getFirst()">getFirst</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/graph/path/NodeSequence.html" title="interface in org.geotools.graph.path">NodeSequence</A></CODE></DL>
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<DT><B>Returns:</B><DD>Object of tupe Node.<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/graph/path/NodeSequence.html#getFirst()"><CODE>NodeSequence.getFirst()</CODE></A></DL>
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<A NAME="getLast()"><!-- --></A><H3>
getLast</H3>
<PRE>
public <A HREF="../../../../org/geotools/graph/structure/Node.html" title="interface in org.geotools.graph.structure">Node</A> <B>getLast</B>()</PRE>
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<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/graph/path/NodeSequence.html" title="interface in org.geotools.graph.path">NodeSequence</A></CODE></B></DD>
<DD>Returns the last node in the sequence.
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/graph/path/NodeSequence.html#getLast()">getLast</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/graph/path/NodeSequence.html" title="interface in org.geotools.graph.path">NodeSequence</A></CODE></DL>
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<DT><B>Returns:</B><DD>Object of type node.<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/graph/path/NodeSequence.html#getLast()"><CODE>NodeSequence.getLast()</CODE></A></DL>
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<A NAME="buildEdges()"><!-- --></A><H3>
buildEdges</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A> <B>buildEdges</B>()</PRE>
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<DD>Internal method for building the edge set of the walk. This method 
 calculated the edges upon every call.
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<DT><B>Returns:</B><DD>The list of edges for the walk, or null if the edge set could
 not be calculated due to an invalid walk.</DL>
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<A NAME="reverse()"><!-- --></A><H3>
reverse</H3>
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public void <B>reverse</B>()</PRE>
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<DD>Reverses the path.
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<A NAME="truncate(int)"><!-- --></A><H3>
truncate</H3>
<PRE>
public void <B>truncate</B>(int&nbsp;index)</PRE>
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<DD>Truncates the path at the specified index. Nodes in the path whose
 index is >= the specified index are removed.
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<DT><B>Parameters:</B><DD><CODE>index</CODE> - The index of first node to be removed.</DL>
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<A NAME="riterator()"><!-- --></A><H3>
riterator</H3>
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public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Iterator.html" title="class or interface in java.util">Iterator</A> <B>riterator</B>()</PRE>
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<DD>Returns an iterator that iterates over the path in reverse. The iterator
 does not support the remove operation.
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<DT><B>Returns:</B><DD>the reverse iterator.</DL>
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<A NAME="duplicate()"><!-- --></A><H3>
duplicate</H3>
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public <A HREF="../../../../org/geotools/graph/path/Path.html" title="class in org.geotools.graph.path">Path</A> <B>duplicate</B>()</PRE>
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<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
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public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;other)</PRE>
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<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html#equals(java.lang.Object)" title="class or interface in java.util">equals</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A></CODE></DL>
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<A NAME="equals(org.geotools.graph.path.Walk)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="../../../../org/geotools/graph/path/Walk.html" title="class in org.geotools.graph.path">Walk</A>&nbsp;other)</PRE>
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<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
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<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html#hashCode()" title="class or interface in java.util">hashCode</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A></CODE></DL>
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