vector 3 LIBG3D Library vector Vector manipulation and calculation #include <g3d/vector.h> typedef G3DVector; gboolean g3d_vector_normal (G3DFloat ax, G3DFloat ay, G3DFloat az, G3DFloat bx, G3DFloat by, G3DFloat bz, G3DFloat *nx, G3DFloat *ny, G3DFloat *nz); gboolean g3d_vector_unify (G3DFloat *nx, G3DFloat *ny, G3DFloat *nz); gboolean g3d_vector_transform (G3DFloat *x, G3DFloat *y, G3DFloat *z, G3DMatrix *matrix); A vector is a one-dimensional array of floating point data. Declare it as statically as: G3DVector vector[3]; or allocate it dynamically with: G3DVector *vector = g3d_vector_new(3, 1); G3DVectortypedef G3DFloat G3DVector; Vector element type. g3d_vector_normalgboolean g3d_vector_normal (G3DFloat ax, G3DFloat ay, G3DFloat az, G3DFloat bx, G3DFloat by, G3DFloat bz, G3DFloat *nx, G3DFloat *ny, G3DFloat *nz); calculate the normal from a plane defined by two vectors ax : x component first vector ay : y component first vector az : z component first vector bx : x component second vector by : y component second vector bz : z component second vector nx : x component resulting normal ny : y component resulting normal nz : z component resulting normal Returns : TRUE on success, FALSE else g3d_vector_unifygboolean g3d_vector_unify (G3DFloat *nx, G3DFloat *ny, G3DFloat *nz); Transforms the given vector to the unit vector. nx : x component of vector ny : y component of vector nz : z component of vector Returns : TRUE on success, FALSE else g3d_vector_transformgboolean g3d_vector_transform (G3DFloat *x, G3DFloat *y, G3DFloat *z, G3DMatrix *matrix); Transforms the given vector corresponding to the given matrix x : x component of vector y : y component of vector z : z component of vector matrix : transformation matrix (4x4) Returns : TRUE on success, FALSE else