Main class to handle feature. More...

#include <feature.h>

Inheritance diagram for pal::FeaturePart:

Public Member Functions
	FeaturePart (Feature feat, const GEOSGeometry geom)
	create a new generic feature
virtual	~FeaturePart ()
	Delete the feature.
void	addSizePenalty (int nbp, LabelPosition **lPos, double bbx[4], double bby[4])
LabelPosition *	curvedPlacementAtOffset (PointSet path_positions, double path_distances, int orientation, int index, double distance)
bool	getAlwaysShow ()
Feature *	getFeature ()
	return the feature
bool	getFixedPosition ()
bool	getFixedRotation ()
const GEOSGeometry *	getGeometry () const
	return the geometry
double	getLabelAngle ()
double	getLabelDistance () const
double	getLabelHeight () const
double	getLabelWidth () const
Layer *	getLayer ()
	return the layer that feature belongs to
int	getNumSelfObstacles () const
PointSet *	getSelfObstacle (int i)
const char *	getUID ()
	get the unique id of the feature
PalGeometry *	getUserGeometry ()
bool	isConnected (FeaturePart *p2)
	check whether this part is connected with some other part
bool	mergeWithFeaturePart (FeaturePart *other)
	merge other (connected) part with this one and save the result in this part (other is unchanged).
void	print ()
	Print feature information Print feature unique id, geometry type, points, and holes on screen.
void	setLabelDistance (double dist)
void	setLabelInfo (LabelInfo *info)
void	setLabelSize (double lx, double ly)
int	setPosition (double scale, LabelPosition **lPos, double bbox_min[2], double bbox_max[2], PointSet mapShape, RTree< LabelPosition , double, 2, double > candidates)
	generic method to generate candidates This method will call either setPositionFromPoint(), setPositionFromLine or setPositionFromPolygon
int	setPositionForLine (double scale, LabelPosition **lPos, PointSet mapShape, double delta_width)
	generate candidates for line feature Generate candidates for line features
int	setPositionForLineCurved (LabelPosition **lPos, PointSet mapShape)
	Generate curved candidates for line features.
int	setPositionForPoint (double x, double y, double scale, LabelPosition ***lPos, double delta_width, double angle)
	generate candidates for point feature Generate candidates for point features
int	setPositionForPolygon (double scale, LabelPosition **lPos, PointSet mapShape, double delta_width)
	generate candidates for point feature Generate candidates for point features
int	setPositionOverPoint (double x, double y, double scale, LabelPosition ***lPos, double delta_width, double angle)
	generate one candidate over specified point
Public Member Functions inherited from pal::PointSet
	PointSet ()
	PointSet (int nbPoints, double x, double y)
virtual	~PointSet ()
CHullBox *	compute_chull_bbox ()
PointSet *	createProblemSpecificPointSet (double bbmin[2], double bbmax[2], bool *inside)
PointSet *	extractShape (int nbPtSh, int imin, int imax, int fps, int fpe, double fptx, double fpty)
void	getBoundingBox (double min[2], double max[2]) const
void	getCentroid (double &px, double &py, bool forceInside=false)
double	getDist (double px, double py, double rx, double ry)
	return the minimum distance bw this and the point (px,py)
int	getGeosType () const
PointSet *	getHoleOf ()
	returns NULL if this isn't a hole.
int	getNumPoints () const
void	getPoint (double d, double ad, double dl, double px, double py)

Protected Member Functions
void	extractCoords (const GEOSGeometry *geom)
	read coordinates from a GEOS geom
void	removeDuplicatePoints ()
	find duplicate (or nearly duplicate points) and remove them.
Protected Member Functions inherited from pal::PointSet
	PointSet (double x, double y)
	PointSet (PointSet &ps)
void	deleteCoords ()

Protected Attributes
Feature *	f
PointSet **	holes
int	nbHoles
bool	ownsGeom
GEOSGeometry *	the_geom
Protected Attributes inherited from pal::PointSet
int *	cHull
int	cHullSize
PointSet *	holeOf
int	nbPoints
PointSet *	parent
int	type
double *	x
double	xmax
double	xmin
double *	y
double	ymax
double	ymin

Additional Inherited Members
Static Public Member Functions inherited from pal::PointSet
static void	splitPolygons (LinkedList< PointSet * > shapes_toProcess, LinkedList< PointSet > shapes_final, double xrm, double yrm, char uid)

Detailed Description

Main class to handle feature.

Definition at line 138 of file feature.h.

Constructor & Destructor Documentation

pal::FeaturePart::FeaturePart	(	Feature *	feat,
		const GEOSGeometry *	geom
	)

create a new generic feature

Parameters

feat	a pointer for a Feat which contains the spatial entites
geom	a pointer to a GEOS geometry

Definition at line 98 of file feature.cpp.

pal::FeaturePart::~FeaturePart ( )

virtual

Delete the feature.

Definition at line 115 of file feature.cpp.

Member Function Documentation

void pal::FeaturePart::addSizePenalty	(	int	nbp,
		LabelPosition **	lPos,
		double	bbx[4],
		double	bby[4]
	)

Definition at line 1408 of file feature.cpp.

LabelPosition * pal::FeaturePart::curvedPlacementAtOffset	(	PointSet *	path_positions,
		double *	path_distances,
		int	orientation,
		int	index,
		double	distance
	)

Definition at line 727 of file feature.cpp.

void pal::FeaturePart::extractCoords ( const GEOSGeometry * geom )

protected

read coordinates from a GEOS geom

Definition at line 138 of file feature.cpp.

bool pal::FeaturePart::getAlwaysShow ( )

inline

Definition at line 310 of file feature.h.

Feature* pal::FeaturePart::getFeature ( )

inline

return the feature

Returns: the feature

Definition at line 244 of file feature.h.

bool pal::FeaturePart::getFixedPosition ( )

inline

Definition at line 309 of file feature.h.

bool pal::FeaturePart::getFixedRotation ( )

inline

Definition at line 307 of file feature.h.

const GEOSGeometry* pal::FeaturePart::getGeometry ( ) const

inline

return the geometry

Returns: the geometry

Definition at line 250 of file feature.h.

double pal::FeaturePart::getLabelAngle ( )

inline

Definition at line 308 of file feature.h.

double pal::FeaturePart::getLabelDistance ( ) const

inline

Definition at line 304 of file feature.h.

double pal::FeaturePart::getLabelHeight ( ) const

inline

Definition at line 302 of file feature.h.

double pal::FeaturePart::getLabelWidth ( ) const

inline

Definition at line 301 of file feature.h.

Layer * pal::FeaturePart::getLayer ( )

return the layer that feature belongs to

Returns: the layer of the feature

Definition at line 267 of file feature.cpp.

int pal::FeaturePart::getNumSelfObstacles ( ) const

inline

Definition at line 312 of file feature.h.

PointSet* pal::FeaturePart::getSelfObstacle ( int i )

inline

Definition at line 313 of file feature.h.

const char * pal::FeaturePart::getUID ( )

get the unique id of the feature

Returns: the feature unique identifier

Definition at line 273 of file feature.cpp.

PalGeometry* pal::FeaturePart::getUserGeometry ( )

inline

Definition at line 298 of file feature.h.

bool pal::FeaturePart::isConnected ( FeaturePart * p2 )

check whether this part is connected with some other part

Definition at line 1448 of file feature.cpp.

bool pal::FeaturePart::mergeWithFeaturePart ( FeaturePart * other )

merge other (connected) part with this one and save the result in this part (other is unchanged).

Return true on success, false if the feature wasn't modified

Definition at line 1453 of file feature.cpp.

void pal::FeaturePart::print ( )

Print feature information Print feature unique id, geometry type, points, and holes on screen.

Definition at line 1285 of file feature.cpp.

void pal::FeaturePart::removeDuplicatePoints ( )

protected

find duplicate (or nearly duplicate points) and remove them.

Probably to avoid numerical errors in geometry algorithms.

Definition at line 220 of file feature.cpp.

void pal::FeaturePart::setLabelDistance ( double dist )

inline

Definition at line 303 of file feature.h.

void pal::FeaturePart::setLabelInfo ( LabelInfo * info )

inline

Definition at line 305 of file feature.h.

void pal::FeaturePart::setLabelSize	(	double	lx,
		double	ly
	)

inline

Definition at line 300 of file feature.h.

int pal::FeaturePart::setPosition	(	double	scale,
		LabelPosition ***	lPos,
		double	bbox_min[2],
		double	bbox_max[2],
		PointSet *	mapShape,
		RTree< LabelPosition , double, 2, double >	candidates
	)

generic method to generate candidates This method will call either setPositionFromPoint(), setPositionFromLine or setPositionFromPolygon

Parameters

scale	the map scale is 1:scale
lPos	pointer to candidates array in which candidates will be put
bbox_min	min values of the map extent
bbox_max	max values of the map extent
mapShape	generate candidates for this spatial entites
candidates	index for candidates

Returns: the number of candidates in *lPos

Definition at line 1308 of file feature.cpp.

int pal::FeaturePart::setPositionForLine	(	double	scale,
		LabelPosition ***	lPos,
		PointSet *	mapShape,
		double	delta_width
	)

generate candidates for line feature Generate candidates for line features

Parameters

scale	map scale is 1:scale
lPos	pointer to an array of candidates, will be filled by generated candidates
mapShape	a pointer to the line
delta_width	delta width

Returns: the number of generated cadidates

Definition at line 523 of file feature.cpp.

int pal::FeaturePart::setPositionForLineCurved	(	LabelPosition ***	lPos,
		PointSet *	mapShape
	)

Generate curved candidates for line features.

Definition at line 931 of file feature.cpp.

int pal::FeaturePart::setPositionForPoint	(	double	x,
		double	y,
		double	scale,
		LabelPosition ***	lPos,
		double	delta_width,
		double	angle
	)

generate candidates for point feature Generate candidates for point features

Parameters

x	x coordinates of the point
y	y coordinates of the point
scale	map scale is 1:scale
lPos	pointer to an array of candidates, will be filled by generated candidates
delta_width	delta width
angle	orientation of the label

Returns: the number of generated cadidates

Definition at line 356 of file feature.cpp.

int pal::FeaturePart::setPositionForPolygon	(	double	scale,
		LabelPosition ***	lPos,
		PointSet *	mapShape,
		double	delta_width
	)

generate candidates for point feature Generate candidates for point features

Parameters

scale	map scale is 1:scale
lPos	pointer to an array of candidates, will be filled by generated candidates
mapShape	a pointer to the polygon
delta_width	delta width

Returns: the number of generated cadidates

Definition at line 1048 of file feature.cpp.

int pal::FeaturePart::setPositionOverPoint	(	double	x,
		double	y,
		double	scale,
		LabelPosition ***	lPos,
		double	delta_width,
		double	angle
	)

generate one candidate over specified point

Definition at line 278 of file feature.cpp.

Member Data Documentation

Feature* pal::FeaturePart::f

protected

Definition at line 142 of file feature.h.

PointSet** pal::FeaturePart::holes

protected

Definition at line 145 of file feature.h.

int pal::FeaturePart::nbHoles

protected

Definition at line 144 of file feature.h.

bool pal::FeaturePart::ownsGeom

protected

Definition at line 148 of file feature.h.

GEOSGeometry* pal::FeaturePart::the_geom

protected

Definition at line 147 of file feature.h.

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

/tmp/buildd/qgis-2.8.2+12wheezy/src/core/pal/feature.h
/tmp/buildd/qgis-2.8.2+12wheezy/src/core/pal/feature.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation