ImageHeightmap Class Reference

Encapsulates an image that will be interpreted as a heightmap. More...

#include <ImageHeightmap.hh>

Public Member Functions
	ImageHeightmap ()
	Constructor. More...
std::string	Filename () const
	Get the full filename of loaded heightmap image/dem. More...
void	FillHeightMap (int _subSampling, unsigned int _vertSize, const gz::math::Vector3d &_size, const gz::math::Vector3d &_scale, bool _flipY, std::vector< float > &_heights) const
	Create a lookup table of the terrain's height. More...
unsigned int	Height () const
	Get the terrain's height. More...
int	Load (const std::string &_filename="")
	Load an image file as a heightmap. More...
float	MaxElevation () const
	Get the maximum terrain's elevation. More...
unsigned int	Width () const
	Get the terrain's width. More...
Public Member Functions inherited from HeightmapData
virtual	~HeightmapData ()=default
	Destructor. More...
virtual float	MinElevation () const
	Get the min terrain's elevation. More...

Detailed Description

Encapsulates an image that will be interpreted as a heightmap.

Constructor & Destructor Documentation

ImageHeightmap()

ImageHeightmap

(

)

Constructor.

Parameters

[in]

_filename

the path to the image

Member Function Documentation

Filename()

std::string Filename ( ) const

virtual

Get the full filename of loaded heightmap image/dem.

Returns

The filename used to load the heightmap image/dem

Implements HeightmapData.

FillHeightMap()

void FillHeightMap ( int  _subSampling, unsigned int  _vertSize, const gz::math::Vector3d &  _size, const gz::math::Vector3d &  _scale, bool  _flipY, std::vector< float > &  _heights  ) const

virtual

Create a lookup table of the terrain's height.

Parameters

[in]	_subsampling	Multiplier used to increase the resolution. Ex: A subsampling of 2 in a terrain of 129x129 means that the height vector will be 257 * 257.
[in]	_vertSize	Number of points per row.
[in]	_size	Real dimensions of the terrain.
[in]	_scale	Vector3 used to scale the height.
[in]	_flipY	If true, it inverts the order in which the vector is filled.
[out]	_heights	Vector containing the terrain heights.

Implements HeightmapData.

Height()

unsigned int Height ( ) const

virtual

Get the terrain's height.

Returns

The terrain's height [pixels].

Implements HeightmapData.

Load()

int Load

(

const std::string &

_filename = ""

)

Load an image file as a heightmap.

Parameters

[in]

_filename

the path to the image file.

Returns

True when the operation succeeds to open a file.

MaxElevation()

float MaxElevation ( ) const

virtual

Get the maximum terrain's elevation.

Returns

The maximum terrain's elevation.

Implements HeightmapData.

Width()

unsigned int Width ( ) const

virtual

Get the terrain's width.

Returns

The terrain's width [pixels].

Implements HeightmapData.

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

• gz/common/geospatial/ImageHeightmap.hh