VIEW3D REFERENCE

Geometry and Vector Functions

The following convenience functions are provided to facilitate the calculation of normals when creating a mesh surface object.

Function Name Description
XintGeomCalculateNormal Calculate a normal vector from three points.
XintVectorCopy3 Copy a vector.
XintVectorNormalize3 Normalize a vector.

Function Name	Description
XintGeomCalculateNormal	Calculate a normal vector from three points.
XintVectorCopy3	Copy a vector.
XintVectorNormalize3	Normalize a vector.

XintGeomCalculateNormal

This function calculates a normal vector from three points.

     void XintGeomCalculateNormal(...)

XintVector3 normal On return, contains normal vector.
XintVector3 p1 First input point.
XintVector3 p2 Second input point.
XintVector3 p3 Third input point.

XintVectorCopy3

This function copies a vector.

     void XintVectorCopy3 (...)

XintVector3 dest Destination vector.
XintVector3 src Source vector.

XintVectorNormalize3

This function normalizes a vector.

     void XintVectorNormalize3 (...)

XintVector3 dest Destination vector that has been normalized.
XintVector3 src Source vector.

XintVector3	normal	On return, contains normal vector.
XintVector3	p1	First input point.
XintVector3	p2	Second input point.
XintVector3	p3	Third input point.

XintVector3	dest	Destination vector.
XintVector3	src	Source vector.

XintVector3	dest	Destination vector that has been normalized.
XintVector3	src	Source vector.