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pal::FeaturePart Class Reference

Main class to handle feature. More...

#include <feature.h>

Inheritance diagram for pal::FeaturePart:
Inheritance graph
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Public Member Functions

 FeaturePart (Feature *feat, const GEOSGeometry *geom)
 create a new generic feature More...
 
virtual ~FeaturePart ()
 Delete the feature. More...
 
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 More...
 
int setPositionOverPoint (double x, double y, double scale, LabelPosition ***lPos, double delta_width, double angle)
 generate one candidate over specified point More...
 
int setPositionForLine (double scale, LabelPosition ***lPos, PointSet *mapShape, double delta_width)
 generate candidates for line feature Generate candidates for line features More...
 
LabelPositioncurvedPlacementAtOffset (PointSet *path_positions, double *path_distances, int orientation, int index, double distance)
 
int setPositionForLineCurved (LabelPosition ***lPos, PointSet *mapShape)
 Generate curved candidates for line features. More...
 
int setPositionForPolygon (double scale, LabelPosition ***lPos, PointSet *mapShape, double delta_width)
 generate candidates for point feature Generate candidates for point features More...
 
FeaturegetFeature ()
 return the feature More...
 
const GEOSGeometry * getGeometry () const
 return the geometry More...
 
LayergetLayer ()
 return the layer that feature belongs to More...
 
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 More...
 
const char * getUID ()
 get the unique id of the feature More...
 
void print ()
 Print feature information Print feature unique id, geometry type, points, and holes on screen. More...
 
PalGeometrygetUserGeometry ()
 
void setLabelSize (double lx, double ly)
 
double getLabelWidth () const
 
double getLabelHeight () const
 
void setLabelDistance (double dist)
 
double getLabelDistance () const
 
void setLabelInfo (LabelInfo *info)
 
bool getFixedRotation ()
 
double getLabelAngle ()
 
bool getFixedPosition ()
 
bool getAlwaysShow ()
 
int getNumSelfObstacles () const
 
PointSetgetSelfObstacle (int i)
 
bool isConnected (FeaturePart *p2)
 check whether this part is connected with some other part More...
 
bool mergeWithFeaturePart (FeaturePart *other)
 merge other (connected) part with this one and save the result in this part (other is unchanged). More...
 
void addSizePenalty (int nbp, LabelPosition **lPos, double bbx[4], double bby[4])
 
- Public Member Functions inherited from pal::PointSet
 PointSet ()
 
 PointSet (int nbPoints, double *x, double *y)
 
virtual ~PointSet ()
 
PointSetextractShape (int nbPtSh, int imin, int imax, int fps, int fpe, double fptx, double fpty)
 
PointSetcreateProblemSpecificPointSet (double bbmin[2], double bbmax[2], bool *inside)
 
CHullBoxcompute_chull_bbox ()
 
double getDist (double px, double py, double *rx, double *ry)
 return the minimum distance bw this and the point (px,py) More...
 
void getCentroid (double &px, double &py, bool forceInside=false)
 
int getGeosType () const
 
void getBoundingBox (double min[2], double max[2]) const
 
PointSetgetHoleOf ()
 returns NULL if this isn't a hole. More...
 
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 More...
 
void removeDuplicatePoints ()
 find duplicate (or nearly duplicate points) and remove them. More...
 
- Protected Member Functions inherited from pal::PointSet
 PointSet (double x, double y)
 
 PointSet (PointSet &ps)
 
void deleteCoords ()
 

Protected Attributes

Featuref
 
int nbHoles
 
PointSet ** holes
 
GEOSGeometry * the_geom
 
bool ownsGeom
 
- Protected Attributes inherited from pal::PointSet
int nbPoints
 
double * x
 
double * y
 
int * cHull
 
int cHullSize
 
int type
 
PointSetholeOf
 
PointSetparent
 
double xmin
 
double xmax
 
double ymin
 
double ymax
 

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.

Constructor & Destructor Documentation

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

create a new generic feature

Parameters
feata pointer for a Feat which contains the spatial entites
geoma pointer to a GEOS geometry
pal::FeaturePart::~FeaturePart ( )
virtual

Delete the feature.

Member Function Documentation

void pal::FeaturePart::addSizePenalty ( int  nbp,
LabelPosition **  lPos,
double  bbx[4],
double  bby[4] 
)
LabelPosition * pal::FeaturePart::curvedPlacementAtOffset ( PointSet path_positions,
double *  path_distances,
int  orientation,
int  index,
double  distance 
)
void pal::FeaturePart::extractCoords ( const GEOSGeometry *  geom)
protected

read coordinates from a GEOS geom

bool pal::FeaturePart::getAlwaysShow ( )
inline
Feature* pal::FeaturePart::getFeature ( )
inline

return the feature

Returns
the feature
bool pal::FeaturePart::getFixedPosition ( )
inline
bool pal::FeaturePart::getFixedRotation ( )
inline
const GEOSGeometry* pal::FeaturePart::getGeometry ( ) const
inline

return the geometry

Returns
the geometry
double pal::FeaturePart::getLabelAngle ( )
inline
double pal::FeaturePart::getLabelDistance ( ) const
inline
double pal::FeaturePart::getLabelHeight ( ) const
inline
double pal::FeaturePart::getLabelWidth ( ) const
inline
Layer * pal::FeaturePart::getLayer ( )

return the layer that feature belongs to

Returns
the layer of the feature
int pal::FeaturePart::getNumSelfObstacles ( ) const
inline
PointSet* pal::FeaturePart::getSelfObstacle ( int  i)
inline
const char * pal::FeaturePart::getUID ( )

get the unique id of the feature

Returns
the feature unique identifier
PalGeometry* pal::FeaturePart::getUserGeometry ( )
inline
bool pal::FeaturePart::isConnected ( FeaturePart p2)

check whether this part is connected with some other part

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

void pal::FeaturePart::print ( )

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

void pal::FeaturePart::removeDuplicatePoints ( )
protected

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

Probably to avoid numerical errors in geometry algorithms.

void pal::FeaturePart::setLabelDistance ( double  dist)
inline
void pal::FeaturePart::setLabelInfo ( LabelInfo info)
inline
void pal::FeaturePart::setLabelSize ( double  lx,
double  ly 
)
inline
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
scalethe map scale is 1:scale
lPospointer to candidates array in which candidates will be put
bbox_minmin values of the map extent
bbox_maxmax values of the map extent
mapShapegenerate candidates for this spatial entites
candidatesindex for candidates
Returns
the number of candidates in *lPos
int pal::FeaturePart::setPositionForLine ( double  scale,
LabelPosition ***  lPos,
PointSet mapShape,
double  delta_width 
)

generate candidates for line feature Generate candidates for line features

Parameters
scalemap scale is 1:scale
lPospointer to an array of candidates, will be filled by generated candidates
mapShapea pointer to the line
delta_widthdelta width
Returns
the number of generated cadidates
int pal::FeaturePart::setPositionForLineCurved ( LabelPosition ***  lPos,
PointSet mapShape 
)

Generate curved candidates for line features.

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
xx coordinates of the point
yy coordinates of the point
scalemap scale is 1:scale
lPospointer to an array of candidates, will be filled by generated candidates
delta_widthdelta width
angleorientation of the label
Returns
the number of generated cadidates
int pal::FeaturePart::setPositionForPolygon ( double  scale,
LabelPosition ***  lPos,
PointSet mapShape,
double  delta_width 
)

generate candidates for point feature Generate candidates for point features

Parameters
scalemap scale is 1:scale
lPospointer to an array of candidates, will be filled by generated candidates
mapShapea pointer to the polygon
delta_widthdelta width
Returns
the number of generated cadidates
int pal::FeaturePart::setPositionOverPoint ( double  x,
double  y,
double  scale,
LabelPosition ***  lPos,
double  delta_width,
double  angle 
)

generate one candidate over specified point

Member Data Documentation

Feature* pal::FeaturePart::f
protected
PointSet** pal::FeaturePart::holes
protected
int pal::FeaturePart::nbHoles
protected
bool pal::FeaturePart::ownsGeom
protected
GEOSGeometry* pal::FeaturePart::the_geom
protected

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