OpenSceneGraph implementation of terrain texturing.

Public Member Functions
	DtOsgTexturizer (DtDe &de)

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

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

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

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

virtual void	enableAutoTexturing (osg::Node *node)

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

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)

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

virtual void	resetUnit (osg::Node *node, int 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

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

virtual osgDB::ReaderWriter::Options *	setupTerrainReadImageOptions ()

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

virtual void	rescaleTexture (osg::Node *node, const osg::Matrix &mat, osg::TexEnv::Mode blendmode, unsigned int texunit)

virtual bool	isNameTextureExempt (const std::string &name) const

virtual osg::Image *	convertImageToRGBA (osg::Image *img)

Protected Attributes
DtDe &	myDe

Constructor & Destructor Documentation

makVrv::DtOsgTexturizer::DtOsgTexturizer ( DtDe & de )

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,
		const std::vector< double > &	scale,
		const 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

protectedvirtual

Change bbox to fit node and every child of node.

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

protectedvirtual

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

virtual osgDB::ReaderWriter::Options* makVrv::DtOsgTexturizer::setupTerrainReadImageOptions ( )

protectedvirtual

Turn off cache acceleration for texturizer images since they get alpha inserted (need no compression, no mip map)

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

protectedvirtual

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

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

protectedvirtual

rescale texture on node using generated coordinates and texture matrix mat

virtual bool makVrv::DtOsgTexturizer::isNameTextureExempt ( const std::string & name ) const

protectedvirtual

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

virtual osg::Image* makVrv::DtOsgTexturizer::convertImageToRGBA ( osg::Image * img )

protectedvirtual

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

Member Data Documentation

DtDe& makVrv::DtOsgTexturizer::myDe

protected

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

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-1-branch/include/vrvOsg/DtOsgTexturizer.h

Public Member Functions

Protected Member Functions

Protected Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation