vtTin3d Class Reference

Inheritance diagram for vtTin3d:

Public Member Functions
bool	Read (const char *fname, bool progress_callback(int)=NULL)
void	SetColorMap (ColorMap *color_map)
virtual bool	FindAltitudeAtPoint (const FPoint3 &p3, float &fAltitude, bool bTrue=false, int iCultureFlags=0, FPoint3 *vNormal=NULL) const
void	MakeMaterialsFromOptions (const vtTagArray &options, bool bTextureCompression)
void	MakeMaterials (ColorMap *cmap, osg::Image *image, float fScale, float fOpacity, bool bTextureCompression)

Detailed Description

This class extends vtTin with the ability to call vtlib to create 3d geometry for the TIN. It also subclasses vtHeightField so it provides the ability to do height-testing and ray-picking.

There are three ways to apply materials to the surface.

1. If you have an existing material you want the TIN to use, pass it with SetMaterial(). It can be textured or not.
2. Or, pass some colors with SetColorMap, and those will be used (as vertex colors, no texturing.
3. Or, add some surface types with vtTin::AddSurfaceType, and those types will be used

Member Function Documentation

bool vtTin3d::FindAltitudeAtPoint ( const FPoint3 &  input, float &  fAltitude, bool  bTrue = false, int  iCultureFlags = 0, FPoint3 *  vNormal = NULL  ) const

virtual

Returns true if the point was over the TIN, false otherwise.

Reimplemented from vtTin.

void vtTin3d::MakeMaterials	(	ColorMap *	cmap,
		osg::Image *	image,
		float	fScale,
		float	fOpacity,
		bool	bTextureCompression
	)

Lower-level method to make materials.

void vtTin3d::MakeMaterialsFromOptions	(	const vtTagArray &	options,
		bool	bTextureCompression
	)

High-level method to make materials from layer options.

bool vtTin3d::Read	(	const char *	fname,
		bool	progress_callbackint = NULL
	)

Read the TIN from a file. This can either be an old-style or new-style .tin format (so far, a VTP-specific format)

void vtTin3d::SetColorMap ( ColorMap *  color_map )

inline

Takes ownership of the colormap you provide