#include <mapgrid.h>

Public Member Functions
	MapGrid ()

	MapGrid (const GisGrid &source_grid)
	create a MapGrid. the optional parameter "create_index" indicates if a spatial index (e.g. to query all pixels with a given value) should be built. More...

	MapGrid (const QString &fileName, const bool create_index=true)

bool	loadFromFile (const QString &fileName, const bool create_index=true)
	load ESRI style text file More...

bool	loadFromGrid (const GisGrid &source_grid, const bool create_index=true)
	load from an already present GisGrid More...

void	createEmptyGrid ()
	create an empty grid with the size of the height grid of iLand (all values are 0, no index is created) More...

void	createIndex ()
	(re-)creates the internal index (mRUIndex, mRectIndex, ...) More...

const QString &	name () const

bool	isValid () const

const Grid< int > &	grid () const

int	count () const
	number of stands stored in the index More...

bool	isValid (const int id) const
	returns true, if 'id' is a valid id in the grid, false otherwise. More...

QRectF	boundingBox (const int id) const
	returns the bounding box of a polygon More...

double	area (const int id) const
	return the area (m2) covered by the polygon More...

QList< ResourceUnit * >	resourceUnits (const int id) const
	returns the list of resource units with at least one pixel within the area designated by 'id' More...

QList< QPair< ResourceUnit *, double > >	resourceUnitAreas (const int id) const
	returns a list with resource units and area factors per 'id'. More...

QList< Tree * >	trees (const int id) const
	return a list of all living trees on the area 'id' More...

int	loadTrees (const int id, QVector< QPair< Tree *, double > > &rList, const QString filter=QString(), int n_estimate=0) const
	load trees and store in list 'rList'. If 'filter'<>"", then the filter criterion is applied More...

QList< int >	gridIndices (const int id) const
	return a list of grid-indices of a given stand-id More...

const QMultiHash< int, int >	neighborList () const
	extract a list of neighborhood relationships between all the polygons of the grid More...

void	updateNeighborList ()
	scan the map and fill the mNeighborList More...

QList< int >	neighborsOf (const int index) const
	retrieve a list of saplings on a given stand polygon. More...

bool	hasValue (const int id, const QPoint &lif_grid_coords) const
	return true, if the point 'lif_grid_coords' (x/y integer key within the LIF-Grid) More...

int	standIDFromLIFCoord (const QPoint &lif_grid_coords) const
	return the stand-ID at the coordinates from the LIF-Grid (i.e., 2m grid). More...

Static Public Member Functions
static void	freeLocksForStand (const int id)
	free locks for a given stand More...

Constructor & Destructor Documentation

◆ MapGrid() [1/3]

MapGrid::MapGrid ( )

◆ MapGrid() [2/3]

MapGrid::MapGrid ( const GisGrid & source_grid )

inline

create a MapGrid. the optional parameter "create_index" indicates if a spatial index (e.g. to query all pixels with a given value) should be built.

◆ MapGrid() [3/3]

MapGrid::MapGrid	(	const QString &	fileName,
		const bool	create_index = `true`
	)

inline

Member Function Documentation

◆ area()

double MapGrid::area ( const int id ) const

inline

return the area (m2) covered by the polygon

◆ boundingBox()

QRectF MapGrid::boundingBox ( const int id ) const

inline

returns the bounding box of a polygon

◆ count()

int MapGrid::count ( ) const

inline

number of stands stored in the index

◆ createEmptyGrid()

void MapGrid::createEmptyGrid ( )

create an empty grid with the size of the height grid of iLand (all values are 0, no index is created)

◆ createIndex()

void MapGrid::createIndex ( )

(re-)creates the internal index (mRUIndex, mRectIndex, ...)

◆ freeLocksForStand()

void MapGrid::freeLocksForStand ( const int id )

static

free locks for a given stand

◆ grid()

const Grid< int > & MapGrid::grid ( ) const

inline

◆ gridIndices()

QList< int > MapGrid::gridIndices ( const int id ) const

return a list of grid-indices of a given stand-id

return a list of grid-indices of a given stand-id (a grid-index is the index of 10m x 10m pixels within the internal storage) The selection is limited to pixels within the world's extent

◆ hasValue()

bool MapGrid::hasValue	(	const int	id,
		const QPoint &	lif_grid_coords
	)		const

inline

return true, if the point 'lif_grid_coords' (x/y integer key within the LIF-Grid)

◆ isValid() [1/2]

bool MapGrid::isValid ( ) const

inline

◆ isValid() [2/2]

bool MapGrid::isValid ( const int id ) const

inline

returns true, if 'id' is a valid id in the grid, false otherwise.

◆ loadFromFile()

bool MapGrid::loadFromFile	(	const QString &	fileName,
		const bool	create_index = `true`
	)

load ESRI style text file

◆ loadFromGrid()

bool MapGrid::loadFromGrid	(	const GisGrid &	source_grid,
		const bool	create_index = `true`
	)

load from an already present GisGrid

◆ loadTrees()

int MapGrid::loadTrees	(	const int	id,
		QVector< QPair< Tree *, double > > &	rList,
		const QString	filter = `QString()`,
		int	n_estimate = `0`
	)		const

load trees and store in list 'rList'. If 'filter'<>"", then the filter criterion is applied

◆ name()

const QString & MapGrid::name ( ) const

inline

◆ neighborList()

const QMultiHash< int, int > MapGrid::neighborList ( ) const

inline

extract a list of neighborhood relationships between all the polygons of the grid

◆ neighborsOf()

QList< int > MapGrid::neighborsOf ( const int index ) const

retrieve a list of saplings on a given stand polygon.

retrieve a list of all stands that are neighbors of the stand with ID "index".

◆ resourceUnitAreas()

QList< QPair< ResourceUnit *, double > > MapGrid::resourceUnitAreas ( const int id ) const

inline

returns a list with resource units and area factors per 'id'.

the area is '1' if the resource unit is fully covered by the grid-value.

◆ resourceUnits()

QList< ResourceUnit * > MapGrid::resourceUnits ( const int id ) const

returns the list of resource units with at least one pixel within the area designated by 'id'

◆ standIDFromLIFCoord()

int MapGrid::standIDFromLIFCoord ( const QPoint & lif_grid_coords ) const

inline

return the stand-ID at the coordinates from the LIF-Grid (i.e., 2m grid).

◆ trees()

QList< Tree * > MapGrid::trees ( const int id ) const

return a list of all living trees on the area 'id'

return a list of all living trees on the area denoted by 'id'

◆ updateNeighborList()

void MapGrid::updateNeighborList ( )

scan the map and fill the mNeighborList

scan the map and add neighborhood-relations to the mNeighborList the 4-neighborhood is used to identify neighbors.

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

C:/dev/iland/src/tools/mapgrid.h
C:/dev/iland/src/tools/mapgrid.cpp

Public Member Functions

Static Public Member Functions

Constructor & Destructor Documentation

◆ MapGrid() [1/3]

◆ MapGrid() [2/3]

◆ MapGrid() [3/3]

Member Function Documentation

◆ area()

◆ boundingBox()

◆ count()

◆ createEmptyGrid()

◆ createIndex()

◆ freeLocksForStand()

◆ grid()

◆ gridIndices()

◆ hasValue()

◆ isValid() [1/2]

◆ isValid() [2/2]

◆ loadFromFile()

◆ loadFromGrid()

◆ loadTrees()

◆ name()

◆ neighborList()

◆ neighborsOf()

◆ resourceUnitAreas()

◆ resourceUnits()

◆ standIDFromLIFCoord()

◆ trees()

◆ updateNeighborList()