TinCreation::TinCreationSimplificationLindstromTurkStrategy Class Reference

Creates a TIN using an edge-collapse simplification method. More...

#include <tin_creation_simplification_lindstrom_turk_strategy.h>

Inheritance diagram for TinCreation::TinCreationSimplificationLindstromTurkStrategy:

Public Member Functions
	TinCreationSimplificationLindstromTurkStrategy (int stopEdgesCount, double weightVolume=0.5, double weightBoundary=0.5, double weightShape=1e-10)
	TinCreationSimplificationLindstromTurkStrategy (std::vector< int > stopEdgesCountPerZoom, double weightVolume=0.5, double weightBoundary=0.5, double weightShape=1e-10)
void	setParamsForZoom (const unsigned int &zoom)
	Adapts the parameters of the algorithm for the desired zoom level. More...
Polyhedron	create (const std::vector< Point_3 > &dataPts, const bool &constrainEasternVertices, const bool &constrainWesternVertices, const bool &constrainNorthernVertices, const bool &constrainSouthernVertices)
	Create a TIN from a set of points. More...
Public Member Functions inherited from TinCreation::TinCreationStrategy
	TinCreationStrategy ()
	Constructor.
void	setScaleZ (const double &scale)
double	getScaleZ ()
	Get the scale in Z.
void	setBounds (const double &minX, const double &minY, const double &minZ, const double &maxX, const double &maxY, const double &maxZ)
double	getMinX () const
	Get the minimum X coordinate.
double	getMinY () const
	Get the minimum Y coordinate.
double	getMinZ () const
	Get the minimum Z coordinate.
double	getMaxX () const
	Get the maximum X coordinate.
double	getMaxY () const
	Get the maximum Y coordinate.
double	getMaxZ () const
	Get the maximum Z coordinate.
bool	hasOriginalBoundingBox () const
std::vector< Point_3 >	convertUVHToECEF (const std::vector< Point_3 > &pts) const
	Convert points to ECEF assuming that they are on a UVH format, and given the limits of the tile.
std::vector< Point_3 >	convertECEFToUVH (const std::vector< Point_3 > &pts) const
	Convert points from local UVH to ECEF given the limits of the tile.
Point_3	convertUVHToECEF (const Point_3 &p) const
	Convert points to ECEF assuming that they are on a UVH format, and given the limits of the tile.
Point_3	convertECEFToUVH (const Point_3 &p) const
	Convert points from local UVH to ECEF given the limits of the tile.

Detailed Description

Creates a TIN using an edge-collapse simplification method.

This class uses a modified version of the Lindstrom-Turk algorithm [1][2]

[1] P. Lindstrom and G. Turk. Fast and memory efficient polygonal simplification. In IEEE Visualization, pages 279–286, 1998.
[2] P. Lindstrom and G. Turk. Evaluation of memoryless simplification. IEEE Transactions on Visualization and Computer Graphics, 5(2):98–115, slash 1999.

Constructor & Destructor Documentation

TinCreationSimplificationLindstromTurkStrategy() [1/2]

TinCreation::TinCreationSimplificationLindstromTurkStrategy::TinCreationSimplificationLindstromTurkStrategy ( int  stopEdgesCount, double  weightVolume = 0.5, double  weightBoundary = 0.5, double  weightShape = 1e-10  )

inline

Constructor

Parameters

stopEdgesCount	Desired number of edges for the simplified mesh
weightVolume	Volume weight (see original reference)
weightBoundary	Boundary weight (see original reference)
weightShape	Shape weight (see original reference)

TinCreationSimplificationLindstromTurkStrategy() [2/2]

TinCreation::TinCreationSimplificationLindstromTurkStrategy::TinCreationSimplificationLindstromTurkStrategy ( std::vector< int >  stopEdgesCountPerZoom, double  weightVolume = 0.5, double  weightBoundary = 0.5, double  weightShape = 1e-10  )

inline

Constructor

Parameters

stopEdgesCount	Desired number of edges for the simplified mesh per zoom
weightVolume	Volume weight (see original reference)
weightBoundary	Boundary weight (see original reference)
weightShape	Shape weight (see original reference)

Member Function Documentation

create()

Polyhedron TinCreation::TinCreationSimplificationLindstromTurkStrategy::create ( const std::vector< Point_3 > &  dataPts, const bool &  constrainEasternVertices, const bool &  constrainWesternVertices, const bool &  constrainNorthernVertices, const bool &  constrainSouthernVertices  )

virtual

Create a TIN from a set of points.

While it does not impose any regularity on the input points, the use of constrain<X>Vertices is restricted to the shape of the convex hull of the input point being an axis-aligned rectangle.

Parameters

dataPts	Input 3D point set
constrainEasternVertices	Flag indicating whether the vertices on the eastern border of the tile should be preserved or not
constrainWesternVertices	Flag indicating whether the vertices on the western border of the tile should be preserved or not
constrainNorthernVertices	Flag indicating whether the vertices on the northern border of the tile should be preserved or not
constrainSouthernVertices	Flag indicating whether the vertices on the southern border of the tile should be preserved or not

Returns

Implements TinCreation::TinCreationStrategy.

setParamsForZoom()

void TinCreation::TinCreationSimplificationLindstromTurkStrategy::setParamsForZoom ( const unsigned int &  zoom )

inlinevirtual

Adapts the parameters of the algorithm for the desired zoom level.

For further information, see the parameters' setting mechanism in the tutorial.

Parameters

zoom	Current zoom level

Implements TinCreation::TinCreationStrategy.

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

• /mnt/Raid1Ext/EMODNET/Code/src/tin_creation/tin_creation_simplification_lindstrom_turk_strategy.h
• /mnt/Raid1Ext/EMODNET/Code/src/tin_creation/tin_creation_simplification_lindstrom_turk_strategy.cpp