| TerraLib 4.1

- Main Page
- Related Pages
- Modules
- Namespaces
- Classes
- Files
- Examples

- Class List
- Class Index
- Class Hierarchy
- Class Members

Public Member Functions | Protected Member Functions | Protected Attributes
TeCoverageInterpolatorNN< T > Class Template Reference

Provides a Nearest Neighbour interpolation method for coverages. More...

`#include <TeCoverageInterpolatorNN.h>`

Inheritance diagram for TeCoverageInterpolatorNN< T >:

List of all members.

## Public Member Functions

virtual void | setDecoder (TeCoverageDecoder< T > *decoder)
| Set the decoder.
virtual void | evaluate (const TeCoord2D &position, std::vector< double > &value)
| Retrieve the coverage value at an arbitrary location.
virtual void | evaluate (TeRaster &raster, const int rasterBand, const int coverageDimension, const TeBox &box=TeBox())
| Fill a region of a raster with interpolated coverage data.

## Protected Member Functions

virtual TeGeomValuePair< T > | nearestNeighbour (const TeCoord2D &position, double radius=0)
| Find nearest generic geometry-value pair.
double | distanceToGeom (const TeCoord2D &position, TePoint point)
| Evaluate distance from a position to a point.
double | distanceToGeom (const TeCoord2D &position, TeLine2D line)
| Evaluate distance from a position to a line.
double | distanceToGeom (const TeCoord2D &position, TePolygon poly)
| Evaluate distance from a position to a polygon.

## Protected Attributes

double | initialNeighbourhoodRadius_
| The initial radius used for interpolation.

## Detailed Description

### template<class T>
class TeCoverageInterpolatorNN< T >

Provides a Nearest Neighbour interpolation method for coverages.

## Member Function Documentation

template<class T >

double TeCoverageInterpolatorNN< T >::distanceToGeom | ( | const TeCoord2D & | position,
|  | TePoint | point
| ) |  | `[inline, protected]`

Evaluate distance from a position to a point.

template<class T >

double TeCoverageInterpolatorNN< T >::distanceToGeom | ( | const TeCoord2D & | position,
|  | TePolygon | poly
| ) |  | `[inline, protected]`

Evaluate distance from a position to a polygon.

template<class T >

double TeCoverageInterpolatorNN< T >::distanceToGeom | ( | const TeCoord2D & | position,
|  | TeLine2D | line
| ) |  | `[inline, protected]`

Evaluate distance from a position to a line.

template<class T >

virtual void TeCoverageInterpolatorNN< T >::evaluate | ( | const TeCoord2D & | position,
|  | std::vector< double > & | value
| ) |  | `[inline, virtual]`

Retrieve the coverage value at an arbitrary location.

Retrieve the coverage value at an arbitrary location, using the
  coverage decoder to access the coverage data.

This implementation looks for the generic geometry that is the
  nearest neighbour of the position passed as parameter and returns the value associated to it.

Parameters:

  position | the arbitrary location to be evaluated
  the | value vector, to be filled by this method

Implements TeCoverageInterpolator< T >.

template<class T >

virtual void TeCoverageInterpolatorNN< T >::evaluate | ( | TeRaster & | raster,
|  | const int | rasterBand,
|  | const int | coverageDimension,
|  | const TeBox & | box = `TeBox()`
| ) |  | `[inline, virtual]`

Fill a region of a raster with interpolated coverage data.

Fill the pixels of a squared region of a raster with coverage
  data. The value of each pixel coordinate is retrieved from the coverage, using an interpolation method (nearest neighbour).

Parameters:

  raster | the raster to be filled with coverage data
  rasterBand | the raster band to be filled
  coverageDimension | the coverage dimension to be evaluated
  box | defines the raster region to be filled

Implements TeCoverageInterpolator< T >.

template<class T >

virtual TeGeomValuePair<T> TeCoverageInterpolatorNN< T >::nearestNeighbour | ( | const TeCoord2D & | position,
|  | double | radius = `0`
| ) |  | `[inline, protected, virtual]`

Find nearest generic geometry-value pair.

Retrieve the generic geometry value-pair that is the nearest
  neighbour of the arbitrary location passed as parameter.

The radius parameter is used to specify the size of the
  neighbourhood to be checked first. If no neighbours can be found, the radius is increased until at least one neighbour is found.

Parameters:

  position | an arbitrary location
  radius | the size of the neighbourhood to be checked initially.

template<class T >

virtual void TeCoverageInterpolatorNN< T >::setDecoder | ( | TeCoverageDecoder< T > * | decoder | ) | `[inline, virtual]`

Set the decoder.

Parameters:

  decoder | the coverage decoder

Reimplemented from TeCoverageInterpolator< T >.

## Member Data Documentation

template<class T >

double TeCoverageInterpolatorNN< T >::initialNeighbourhoodRadius_`[protected]`

The initial radius used for interpolation.

The documentation for this class was generated from the following file:

- E:/Projetos_Primeiro_Semestre_2012/TerraView/terralib/src/terralib/kernel/TeCoverageInterpolatorNN.h

All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines