Function
Gimpvector_3d_to_2d
Declaration [src]
void
gimp_vector_3d_to_2d (
gint sx,
gint sy,
gint w,
gint h,
gdouble* x,
gdouble* y,
const GimpVector3* vp,
const GimpVector3* p
)
Description [src]
Convert the given 3D point to 2D (project it onto the viewing plane, (sx, sy, 0) - (sx + w, sy + h, 0). The input is assumed to be in the unit square (0, 0, z) - (1, 1, z). The viewpoint of the observer is passed in vp.
This is basically the opposite of gimp_vector_2d_to_3d().
Parameters
sx |
gint |
The abscissa of the upper-left screen rectangle. |
|
sy |
gint |
The ordinate of the upper-left screen rectangle. |
|
w |
gint |
The width of the screen rectangle. |
|
h |
gint |
The height of the screen rectangle. |
|
x |
gdouble* |
The abscissa of the point in the screen rectangle to map (return value). |
|
The data is owned by the caller of the function. | |
y |
gdouble* |
The ordinate of the point in the screen rectangle to map (return value). |
|
The data is owned by the caller of the function. | |
vp |
GimpVector3 |
Position of the observer. |
|
The data is owned by the caller of the function. | |
p |
GimpVector3 |
The 3D point to project to the plane. |
|
The data is owned by the caller of the function. |