JTS Topology Suite version 1.13

com.vividsolutions.jts.noding
Class IteratedNoder

java.lang.Object
  extended by com.vividsolutions.jts.noding.IteratedNoder
All Implemented Interfaces:
Noder

public class IteratedNoder
extends java.lang.Object
implements Noder

Nodes a set of NodedSegmentStrings completely. The set of segment strings is fully noded; i.e. noding is repeated until no further intersections are detected.

Iterated noding using a FLOATING precision model is not guaranteed to converge, due to roundoff error. This problem is detected and an exception is thrown. Clients can choose to rerun the noding using a lower precision model.

Version:
1.7

Field Summary
static int MAX_ITER
           
 
Constructor Summary
IteratedNoder(PrecisionModel pm)
           
 
Method Summary
 void computeNodes(java.util.Collection segStrings)
          Fully nodes a list of SegmentStrings, i.e.
 java.util.Collection getNodedSubstrings()
          Returns a Collection of fully noded SegmentStrings.
 void setMaximumIterations(int maxIter)
          Sets the maximum number of noding iterations performed before the noding is aborted.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

MAX_ITER

public static final int MAX_ITER
See Also:
Constant Field Values
Constructor Detail

IteratedNoder

public IteratedNoder(PrecisionModel pm)
Method Detail

setMaximumIterations

public void setMaximumIterations(int maxIter)
Sets the maximum number of noding iterations performed before the noding is aborted. Experience suggests that this should rarely need to be changed from the default. The default is MAX_ITER.

Parameters:
maxIter - the maximum number of iterations to perform

getNodedSubstrings

public java.util.Collection getNodedSubstrings()
Description copied from interface: Noder
Returns a Collection of fully noded SegmentStrings. The SegmentStrings have the same context as their parent.

Specified by:
getNodedSubstrings in interface Noder
Returns:
a Collection of SegmentStrings

computeNodes

public void computeNodes(java.util.Collection segStrings)
                  throws TopologyException
Fully nodes a list of SegmentStrings, i.e. peforms noding iteratively until no intersections are found between segments. Maintains labelling of edges correctly through the noding.

Specified by:
computeNodes in interface Noder
Parameters:
segStrings - a collection of SegmentStrings to be noded
Throws:
TopologyException - if the iterated noding fails to converge.

JTS Topology Suite version 1.13