Detailed Description

<mrpt/img/color_maps.h>)

Enumerations
enum	mrpt::img::TColormap { mrpt::img::cmNONE = -1, mrpt::img::cmGRAYSCALE = 0, mrpt::img::cmJET, mrpt::img::cmHOT }
	Different colormaps for use in mrpt::img::colormap() More...

Functions
void	mrpt::img::hsv2rgb (float h, float s, float v, float &r, float &g, float &b)
	Transform HSV color components to RGB, all of them in the range [0,1]. More...

void	mrpt::img::rgb2hsv (float r, float g, float b, float &h, float &s, float &v)
	Transform RGB color components to HSV, all of them in the range [0,1]. More...

void	mrpt::img::colormap (const TColormap &color_map, const float color_index, float &r, float &g, float &b)
	Transform a float number in the range [0,1] into RGB components. More...

void	mrpt::img::jet2rgb (const float color_index, float &r, float &g, float &b)
	Computes the RGB color components (range [0,1]) for the corresponding color index in the range [0,1] using the MATLAB 'jet' colormap. More...

void	mrpt::img::hot2rgb (const float color_index, float &r, float &g, float &b)
	Computes the RGB color components (range [0,1]) for the corresponding color index in the range [0,1] using the MATLAB 'hot' colormap. More...

Enumeration Type Documentation

◆ TColormap

enum mrpt::img::TColormap

Different colormaps for use in mrpt::img::colormap()

Enumerator
cmNONE
cmGRAYSCALE	Undefined colormap [New in MRPT 2.0].
cmJET
cmHOT	[New in MRPT 1.5.0]

Definition at line 29 of file color_maps.h.

Function Documentation

◆ colormap()

void mrpt::img::colormap	(	const TColormap &	color_map,
		const float	color_index,
		float &	r,
		float &	g,
		float &	b
	)

Transform a float number in the range [0,1] into RGB components.

Different colormaps are available.

Definition at line 113 of file color_maps.cpp.

References mrpt::img::cmGRAYSCALE, mrpt::img::cmHOT, mrpt::img::cmJET, mrpt::img::hot2rgb(), mrpt::img::jet2rgb(), MRPT_END, MRPT_START, and THROW_EXCEPTION.

Referenced by mrpt::opengl::CColorBar::Create(), mrpt::maps::CHeightGridMap2D::getAs3DObject(), mrpt::maps::CPointsMap::TRenderOptions::loadFromConfigFile(), mrpt::maps::CPointsMap::TRenderOptions::readFromStream(), mrpt::opengl::CPointCloudColoured::recolorizeByCoordinate(), mrpt::opengl::CColorBar::render_dl(), mrpt::opengl::CMeshFast::render_dl(), mrpt::opengl::CColorBar::setColormap(), mrpt::opengl::CMesh::updateTriangles(), and mrpt::maps::CPointsMap::TRenderOptions::writeToStream().

◆ hot2rgb()

void mrpt::img::hot2rgb	(	const float	color_index,
		float &	r,
		float &	g,
		float &	b
	)

Computes the RGB color components (range [0,1]) for the corresponding color index in the range [0,1] using the MATLAB 'hot' colormap.

See also: colormap

Definition at line 204 of file color_maps.cpp.

References mrpt::math::interpolate().

Referenced by mrpt::img::colormap().

◆ hsv2rgb()

void mrpt::img::hsv2rgb	(	float	h,
		float	s,
		float	v,
		float &	r,
		float &	g,
		float &	b
	)

Transform HSV color components to RGB, all of them in the range [0,1].

See also: rgb2hsv

Definition at line 22 of file color_maps.cpp.

References min.

◆ jet2rgb()

void mrpt::img::jet2rgb	(	const float	color_index,
		float &	r,
		float &	g,
		float &	b
	)

Computes the RGB color components (range [0,1]) for the corresponding color index in the range [0,1] using the MATLAB 'jet' colormap.

See also: colormap

Definition at line 138 of file color_maps.cpp.

References mrpt::math::interpolate().

Referenced by mrpt::img::colormap(), mrpt::maps::CRandomFieldGridMap2D::getAs3DObject(), mrpt::maps::CGasConcentrationGridMap2D::getWindAs3DObject(), mrpt::maps::detail::pointmap_traits< CColouredPointsMap >::internal_loadFromRangeScan2D_prepareOneRange(), and mrpt::maps::detail::pointmap_traits< CColouredPointsMap >::internal_loadFromRangeScan3D_prepareOneRange().

◆ rgb2hsv()

void mrpt::img::rgb2hsv	(	float	r,
		float	g,
		float	b,
		float &	h,
		float &	s,
		float &	v
	)

Transform RGB color components to HSV, all of them in the range [0,1].

See also: hsv2rgb

Definition at line 73 of file color_maps.cpp.

References mrpt::max3(), min, and mrpt::min3().