MultiLevelROI (Geotools modules 30-SNAPSHOT API)

All Known Implementing Classes:

MultiLevelROIGeometry, MultiLevelROIGeometryOverviews, MultiLevelROIRaster
```
public interface MultiLevelROI
```
A ROI provider that handles multi-scale ROI

Author:

Andrea Aime - GeoSolutions

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Geometry`	`getFootprint()`	This method returns a `Geometry` object containing the ROI footprint or, at least, its bounding box
`ROI`	`getTransformedROI(AffineTransform at, int imageIndex, Rectangle imgBounds, ImageReadParam params, ReadType readType)`	Returns a transformed ROI based on the input parameters
`boolean`	`isEmpty()`	Checks if the provided `MultiLevelROI` object is empty or not

- Method Detail
  - getTransformedROI
```
ROI getTransformedROI(AffineTransform at,
                      int imageIndex,
                      Rectangle imgBounds,
                      ImageReadParam params,
                      ReadType readType)
```
    Returns a transformed ROI based on the input parameters
    
    Parameters:
    
    at - AffineTransformation
    
    imageIndex - Overview level used for extracting the correct image overview
    
    imgBounds - ImageBounds to set for Raster ROIs
    
    readType - ReadType object indicating how the image file must be read. This may be useful for raster ROIs
    
    Returns:
    
    a ROI object
  - isEmpty
```
boolean isEmpty()
```
    Checks if the provided MultiLevelROI object is empty or not
    
    Returns:
    
    a boolean indicating if this object is empty
  - getFootprint
```
Geometry getFootprint()
```
    This method returns a Geometry object containing the ROI footprint or, at least, its bounding box
    
    Returns:
    
    a Geometry object defining ROI bounds