sgTools Namespace Reference

Functions
long	getFileLength (FILE *file)
int	traceRayTriangle (sgVector3 from, sgVector3 to, sgVector3 pos1, sgVector3 pos2, sgVector3 pos3, sgVertex *I)
void	traceRayMesh (sgMesh *mesh, sgVector3 from, sgVector3 to, sgVertex *I)

---

Detailed Description

Tools namespace. Provides functionality for different often needed tasks.

---

Function Documentation

long sgTools::getFileLength

(

FILE *

file

)

Get file length. Gets the length of a file.

Parameters:

file

pointer to the FILE

Returns:

the length

void sgTools::traceRayMesh	(	sgMesh *	mesh,
		sgVector3	from,
		sgVector3	to,
		sgVertex *	I
	)

Ray mesh intersection. Checks if the given ray intersects the given mesh.

Parameters:

	mesh	the mesh to check intersection with
	from	the rays starting point
	to	the rays end point
	I	the position of the intersection

int sgTools::traceRayTriangle	(	sgVector3	from,
		sgVector3	to,
		sgVector3	pos1,
		sgVector3	pos2,
		sgVector3	pos3,
		sgVertex *	I
	)

Ray triangle intersection. Checks if the given ray intersects the given triangle.

Parameters:

	from	the rays starting point
	to	the rays end point
	pos1	the first vertex position
	pos2	the second vertex position
	pos3	the third vertex position
	I	the position of the intersection

Returns:

-1 = triangle is degenerate (a segment or point) 0 = disjoint (no intersect) 1 = intersect in unique point I1 2 = are in the same plane