Function
Gimpvector_2d_to_3d
Declaration [src]
void
gimp_vector_2d_to_3d (
  gint sx,
  gint sy,
  gint w,
  gint h,
  gint x,
  gint y,
  const GimpVector3* vp,
  GimpVector3* p
)
Description [src]
"Compute screen (sx, sy) - (sx + w, sy + h) to 3D unit square mapping. The plane to map to is given in the z field of p. The observer is located at position vp (vp->z != 0.0)."
In other words, this computes the projection of the point (x, y)
to the plane z = p->z (parallel to XY), from the vp point of view
through the screen (sx, sy)->(sx + w, sy + h).
Parameters
- sx
- 
            Type: gintThe abscissa of the upper-left screen rectangle. 
- sy
- 
            Type: gintThe ordinate of the upper-left screen rectangle. 
- w
- 
            Type: gintThe width of the screen rectangle. 
- h
- 
            Type: gintThe height of the screen rectangle. 
- x
- 
            Type: gintThe abscissa of the point in the screen rectangle to map. 
- y
- 
            Type: gintThe ordinate of the point in the screen rectangle to map. 
- vp
- 
            Type: GimpVector3The position of the observer. The data is owned by the caller of the function. 
- p
- 
            Type: GimpVector3The resulting point. The data is owned by the caller of the function.