VDataDelta Class Reference

Search for all occurrences

---

Detailed Description

See also:

Class Mesh, Class PerData, Class MeshDelta.

Description:

This class is available in release 3.0 and later only.

VDataDelta is a way for a MeshDelta to keep track of per-vertex information. Like vertex selection, this information is explicitly set after all topological changes performed by the MeshDelta, so any active vertex data channels are always set to the size outVNum() for the related MeshDelta.

An example of this being used is in Edit Mesh, where you can assign or modify vertex weights. All these changes and assignments are stored in the Edit Mesh's main MeshDelta.

Data Members:

PerData *out;

This is where the output vertex data is kept, if the given vertex data channel has been activated.

#include <meshdelta.h>

Inheritance diagram for VDataDelta:

List of all members.

Public Member Functions
	VDataDelta ()
DllExport	~VDataDelta ()
void	SetVNum (int nv, BOOL keep=FALSE)
DllExport void	Activate (int vnum, int vdID)
DllExport void	Set (int where, void *data, int num=1)
Public Attributes
PerData *	out

---

Constructor & Destructor Documentation

VDataDelta

(

)

[inline]

Remarks:

Constructor. The data member out is set to NULL.

{ out=NULL; }

DllExport ~VDataDelta

(

)

Remarks:

Destructor. If out is allocated it is deleted.

---

Member Function Documentation

void SetVNum	(	int	nv,
		BOOL	keep = FALSE
	)		[inline]

Search for all occurrences

Remarks:

Sets the size of the output vertex data to the value specified.

Parameters:

int nv

The number of elements to allocate.

BOOL keep=FALSE

If TRUE previous values are kept (copied to the new storage); otherwise they are discarded.

{ if (out) out->SetCount(nv,keep); }

DllExport void Activate	(	int	vnum,
		int	vdID
	)

Search for all occurrences

Remarks:

If the output vertex data has not been allocated this method allocates it with the specified number of elements.

Parameters:

int vnum

The number of elements to allocate.

int vdID

The channel to allocate. One of the following values:

VDATA_SELECT

VDATA_WEIGHT

DllExport void Set	(	int	where,
		void *	data,
		int	num = 1
	)

Search for all occurrences

Remarks:

Sets the specified number of elements of vertex data at the location passed.

Parameters:

int where

The zero based index of the destination in the out array.

void *data

The source data.

int num=1

The number of elements to set.

---

Member Data Documentation

PerData* out

Search for all occurrences