AbstractZoomTool (Geotools modules 31-SNAPSHOT API)

Object
- MapMouseAdapter
- - CursorTool
  - - AbstractZoomTool

All Implemented Interfaces:

MapMouseListener

Direct Known Subclasses:

ScrollWheelTool, ZoomInTool, ZoomOutTool
```
public abstract class AbstractZoomTool
extends CursorTool
```
Abstract base class for the zoom-in and zoom-out tools. Provides getter / setter methods for the zoom increment.

Since:

2.6

Author:

Michael Bedward

Field Summary

Fields
Modifier and Type Field Description

static double DEFAULT_ZOOM_FACTOR
The default zoom increment

protected double zoom
The working zoom increment

Constructor Summary

Constructors
Constructor Description

AbstractZoomTool()
Constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getZoom()`	Get the current areal zoom increment.
`double`	`setZoom(double newZoom)`	Set the zoom increment

Methods inherited from class CursorTool
drawDragBox, getCursor, getMapPane, setMapPane

Methods inherited from class MapMouseAdapter
onMouseClicked, onMouseDragged, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onMouseWheelMoved

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

- Field Detail
  - DEFAULT_ZOOM_FACTOR
```
public static final double DEFAULT_ZOOM_FACTOR
```
    The default zoom increment
    
    See Also:
    
    Constant Field Values
  - zoom
```
protected double zoom
```
    The working zoom increment
- Constructor Detail
  - AbstractZoomTool
```
public AbstractZoomTool()
```
    Constructor
- Method Detail
  - getZoom
```
public double getZoom()
```
    Get the current areal zoom increment.
    
    Returns:
    
    the current zoom increment as a double
  - setZoom
```
public double setZoom(double newZoom)
```
    Set the zoom increment
    
    Parameters:
    
    newZoom - the new zoom increment; values <= 1.0 will be ignored
    
    Returns:
    
    the previous zoom increment