DiskTreeReader (HM Gears 0.10.7 API)

java.lang.Object
- org.hortonmachine.gears.io.disktree.DiskTreeReader

All Implemented Interfaces:

IDiskTree
```
public class DiskTreeReader
extends Object
implements IDiskTree
```
Reader for the Sort-Tile-Recursive disk index.

Author:

Andrea Antonello (www.hydrologis.com)

See Also:

IDiskTree

Field Summary
- Fields inherited from interface org.hortonmachine.gears.io.disktree.IDiskTree
  INDEX_ADDRESS_POSITION, INDEX_ADDRESS_SIZE, INDEX_LENGTH_SIZE

Constructor Summary

Constructors
Constructor Description

DiskTreeReader(String path)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes the filehandle.
`org.locationtech.jts.geom.Geometry`	`pickGeometry(long position, long size)`	Reads a single geomtry, using the info from the quadtree read in `readIndex()`.
`org.locationtech.jts.index.strtree.STRtree`	`readIndex()`	Reads the `STRtree` object from the file.

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

- Constructor Detail
  - DiskTreeReader
```
public DiskTreeReader(String path)
```
    Constructor.
    
    Parameters:
    
    path - the path from which to read.
- Method Detail
  - readIndex
```
public org.locationtech.jts.index.strtree.STRtree readIndex()
                                                     throws Exception
```
    Reads the STRtree object from the file.
    
    Returns:
    
    the quadtree, holding envelops and geometry positions in the file.
    
    Throws:
    
    Exception
  - pickGeometry
```
public org.locationtech.jts.geom.Geometry pickGeometry(long position,
                                                       long size)
                                                throws Exception
```
    Reads a single geomtry, using the info from the quadtree read in readIndex().
    
    Parameters:
    
    position - the position of the geom to read.
    
    size - the size of the geom to read.
    
    Returns:
    
    the read geometry.
    
    Throws:
    
    Exception
  - close
```
public void close()
           throws IOException
```
    Closes the filehandle.
    
    Throws:
    
    IOException