makVrv::DtOsgTexturizer Class Reference

OpenSceneGraph implementation of terrain texturing. More...

List of all members.

Public Member Functions
	DtOsgTexturizer (DtDe &de)
virtual void	drapeTexture (osg::Node *node, const std::string &definition, int textureunit=0)
	Project a texture over the terrain, scaled to the model The projection is isometric down the Z axis so maps nicely to terrain that is nearly an XY plane.
virtual void	drapeTexture (osg::Node *node, const std::string &definition, std::vector< double > scale, std::vector< double > offset, osg::TexEnv::Mode blendmode=osg::TexEnv::MODULATE, osg::Texture::WrapMode wrapMode=osg::Texture::REPEAT, int textureunit=0)
	Project a texture over the terrain, scaled to the model The projection is isometric down the Z axis so maps nicely to terrain that is nearly an XY plane.
virtual void	colorizeByElevation (osg::Node *node, const std::string &definition, int textureunit=0)
	Colorize a terrain using a specified gradient When scale and offset are 0.0, the gradient is stretched to match the terrain such that 0 in terrain-local coordinates represents the midpoint of the gradient.
virtual void	drawContours (osg::Node *node, const std::string &definition, int textureunit=0)
	Project a repeating contour texture over the terrain The projection is isometric down the Z axis.
virtual void	enableAutoTexturing (osg::Node *node)
	Recursively exempt anything under node that should not be texturized.
virtual void	blankMaterial (osg::Node *node, int minunit=0, int maxunit=3)
	Replace current material with a blank white material suitable for texturing.
virtual void	defaultDrapeParameters (osg::Node *node, const std::string &definition, double &xScale, double &yScale, double &xOffset, double &yOffset, osg::Texture::WrapMode &wrapMode, osg::TexEnv::Mode &blendMode)
	The scale and offset to entirely cover the terrain.
virtual void	reset (osg::Node *node, int minunit=0, int maxunit=3)
	Resets matrices.
virtual void	resetUnit (osg::Node *node, int unit)
	Resets texture unit.
Protected Member Functions
osg::Image *	createGradientImageRGBA (const std::string &def, int resolution=256)
virtual void	graphBoundingBox (const osg::Node *node, osg::BoundingBox &bbox) const
	Change bbox to fit node and every child of node.
virtual void	project2dTexture (osg::Node *node, const std::string &texdef, osg::Matrix mat, osg::Texture::WrapMode wrapmode, osg::TexEnv::Mode blendmode, unsigned int texunit)
	Project texture texdef onto node using generated coordinates, using texture matrix mat.
virtual void	project1dTexture (osg::Node *node, const std::string &texdef, osg::Matrix mat, osg::Texture::WrapMode wrapmode, osg::TexEnv::Mode blendmode, unsigned int texunit)
	Project texture texdef onto node using generated coordinates, using texture matrix mat.
virtual void	rescaleTexture (osg::Node *node, osg::Matrix mat, osg::TexEnv::Mode blendmode, unsigned int texunit)
	rescale texture on node using generated coordinates and texture matrix mat
virtual bool	isNameTextureExempt (const std::string &name) const
	Returns true if name describes something that should not be texturized (trees, etc.)
virtual osg::Image *	convertImageToRGBA (osg::Image *img)
	Converts a RGB image to an RGBA image. Frees image that is passed in.
Protected Attributes
DtDe &	myDe

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Detailed Description

OpenSceneGraph implementation of terrain texturing.

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Constructor & Destructor Documentation

makVrv::DtOsgTexturizer::DtOsgTexturizer

(

DtDe &

de

)

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Member Function Documentation

virtual void makVrv::DtOsgTexturizer::drapeTexture	(	osg::Node *	node,
		const std::string &	definition,
		int	textureunit = 0
	)		[virtual]

Project a texture over the terrain, scaled to the model The projection is isometric down the Z axis so maps nicely to terrain that is nearly an XY plane.

virtual void makVrv::DtOsgTexturizer::drapeTexture	(	osg::Node *	node,
		const std::string &	definition,
		std::vector< double >	scale,
		std::vector< double >	offset,
		osg::TexEnv::Mode	blendmode = osg::TexEnv::MODULATE,
		osg::Texture::WrapMode	wrapMode = osg::Texture::REPEAT,
		int	textureunit = 0
	)		[virtual]

Project a texture over the terrain, scaled to the model The projection is isometric down the Z axis so maps nicely to terrain that is nearly an XY plane.

virtual void makVrv::DtOsgTexturizer::colorizeByElevation	(	osg::Node *	node,
		const std::string &	definition,
		int	textureunit = 0
	)		[virtual]

Colorize a terrain using a specified gradient When scale and offset are 0.0, the gradient is stretched to match the terrain such that 0 in terrain-local coordinates represents the midpoint of the gradient.

virtual void makVrv::DtOsgTexturizer::drawContours	(	osg::Node *	node,
		const std::string &	definition,
		int	textureunit = 0
	)		[virtual]

Project a repeating contour texture over the terrain The projection is isometric down the Z axis.

If scale is 0 (the default), the contour texture will scale to 1/20 of the total height.

virtual void makVrv::DtOsgTexturizer::enableAutoTexturing

(

osg::Node *

node

)

[virtual]

Recursively exempt anything under node that should not be texturized.

This should be done once before using any of the automatic texturing functions (drapeTexture, colorizeByElevation, etc.) and will prevent texturing on detectable non-terrain elements. Calling this more than once is harmless, but it can be time-consuming for large terrain.

virtual void makVrv::DtOsgTexturizer::blankMaterial	(	osg::Node *	node,
		int	minunit = 0,
		int	maxunit = 3
	)		[virtual]

Replace current material with a blank white material suitable for texturing.

virtual void makVrv::DtOsgTexturizer::defaultDrapeParameters	(	osg::Node *	node,
		const std::string &	definition,
		double &	xScale,
		double &	yScale,
		double &	xOffset,
		double &	yOffset,
		osg::Texture::WrapMode &	wrapMode,
		osg::TexEnv::Mode &	blendMode
	)		[virtual]

The scale and offset to entirely cover the terrain.

virtual void makVrv::DtOsgTexturizer::reset	(	osg::Node *	node,
		int	minunit = 0,
		int	maxunit = 3
	)		[virtual]

Resets matrices.

virtual void makVrv::DtOsgTexturizer::resetUnit	(	osg::Node *	node,
		int	unit
	)		[virtual]

Resets texture unit.

osg::Image* makVrv::DtOsgTexturizer::createGradientImageRGBA	(	const std::string &	def,
		int	resolution = 256
	)		[protected]

virtual void makVrv::DtOsgTexturizer::graphBoundingBox	(	const osg::Node *	node,
		osg::BoundingBox &	bbox
	)		const [protected, virtual]

Change bbox to fit node and every child of node.

virtual void makVrv::DtOsgTexturizer::project2dTexture	(	osg::Node *	node,
		const std::string &	texdef,
		osg::Matrix	mat,
		osg::Texture::WrapMode	wrapmode,
		osg::TexEnv::Mode	blendmode,
		unsigned int	texunit
	)		[protected, virtual]

Project texture texdef onto node using generated coordinates, using texture matrix mat.

virtual void makVrv::DtOsgTexturizer::project1dTexture	(	osg::Node *	node,
		const std::string &	texdef,
		osg::Matrix	mat,
		osg::Texture::WrapMode	wrapmode,
		osg::TexEnv::Mode	blendmode,
		unsigned int	texunit
	)		[protected, virtual]

Project texture texdef onto node using generated coordinates, using texture matrix mat.

virtual void makVrv::DtOsgTexturizer::rescaleTexture	(	osg::Node *	node,
		osg::Matrix	mat,
		osg::TexEnv::Mode	blendmode,
		unsigned int	texunit
	)		[protected, virtual]

rescale texture on node using generated coordinates and texture matrix mat

virtual bool makVrv::DtOsgTexturizer::isNameTextureExempt

(

const std::string &

name

)

const [protected, virtual]

Returns true if name describes something that should not be texturized (trees, etc.)

virtual osg::Image* makVrv::DtOsgTexturizer::convertImageToRGBA

(

osg::Image *

img

)

[protected, virtual]

Converts a RGB image to an RGBA image. Frees image that is passed in.

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Member Data Documentation

DtDe& makVrv::DtOsgTexturizer::myDe [protected]

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

• include/vrvOsg/DtOsgTexturizer.h