Struct

GimpVector2

Description [src] 

struct GimpVector2 {
  gdouble x;
  gdouble y;
}

A two dimensional vector.

Structure members
x

The x axis.

y

The y axis.

Constructors

gimp_vector2_new

Creates a GimpVector2 of coordinates x and y.

Functions

gimp_vector2_add

Computes the sum of two 2D vectors. The resulting GimpVector2 is stored in result.

gimp_vector2_sub

Computes the difference of two 2D vectors (vector1 minus vector2). The resulting GimpVector2 is stored in result.

Instance methods

gimp_vector2_add_val

This function is identical to gimp_vector2_add() but the vectors are passed by value rather than by reference.

gimp_vector2_cross_product

Compute the cross product of two vectors. The result is a GimpVector2 which is orthogonal to both vector1 and vector2. If vector1 and vector2 are parallel, the result will be the nul vector.

gimp_vector2_cross_product_val

Identical to gimp_vector2_cross_product(), but the vectors are passed by value rather than by reference.

gimp_vector2_inner_product

Computes the inner (dot) product of two 2D vectors. This product is zero if and only if the two vectors are orthogonal.

gimp_vector2_inner_product_val

Identical to gimp_vector2_inner_product(), but the vectors are passed by value rather than by reference.

gimp_vector2_length

Computes the length of a 2D vector.

gimp_vector2_length_val

Identical to gimp_vector2_length(), but the vector is passed by value rather than by reference.

gimp_vector2_mul

Multiplies each component of the vector by factor. Note that this is equivalent to multiplying the vectors length by factor.

gimp_vector2_mul_val

Identical to gimp_vector2_mul(), but the vector is passed by value rather than by reference.

gimp_vector2_neg

Negates the vector (i.e. negate all its coordinates).

gimp_vector2_neg_val

Identical to gimp_vector2_neg(), but the vector is passed by value rather than by reference.

gimp_vector2_normal

Compute a normalized perpendicular vector to vector.

since: 2.8

gimp_vector2_normal_val

Identical to gimp_vector2_normal(), but the vector is passed by value rather than by reference.

since: 2.8

gimp_vector2_normalize

Normalizes the vector so the length of the vector is 1.0. The nul vector will not be changed.

gimp_vector2_normalize_val

Identical to gimp_vector2_normalize(), but the vector is passed by value rather than by reference.

gimp_vector2_rotate

Rotates the vector counterclockwise by alpha radians.

gimp_vector2_rotate_val

Identical to gimp_vector2_rotate(), but the vector is passed by value rather than by reference.

gimp_vector2_set

Sets the X and Y coordinates of vector to x and y.

gimp_vector2_sub_val

This function is identical to gimp_vector2_sub() but the vectors are passed by value rather than by reference.