Exemplos de GEGL_CHANT_OPERATION em C++ (Cpp)

Exemplo n.º 1

Arquivo: scale-ratio.c Projeto: ChristianBusch/gegl

static void
create_matrix (OpTransform *op,
               GeglMatrix3 *matrix)
{
  GeglChantOperation *chant = GEGL_CHANT_OPERATION (op);

  matrix->coeff [0][0] = chant->x;
  matrix->coeff [1][1] = chant->y;
}

Exemplo n.º 2

Arquivo: translate.c Projeto: jcupitt/gegl-vips

static void
create_matrix (OpAffine    *op,
               GeglMatrix3  matrix)
{
  GeglChantOperation *chant = GEGL_CHANT_OPERATION (op);

  matrix [0][2] = chant->x;
  matrix [1][2] = chant->y;
}

Exemplo n.º 3

Arquivo: rotate.c Projeto: jcupitt/gegl-vips

static void
create_matrix (OpAffine    *op,
               GeglMatrix3  matrix)
{
  GeglChantOperation *chant = GEGL_CHANT_OPERATION (op);
  gdouble radians = chant->degrees * (2 * G_PI / 360.);

  matrix [0][0] = matrix [1][1] = cos (radians);
  matrix [0][1] = sin (radians);
  matrix [1][0] = - matrix [0][1];
}

Exemplo n.º 4

Arquivo: reflect.c Projeto: jcupitt/gegl-vips

static void
create_matrix (OpAffine    *op,
               GeglMatrix3  matrix)
{
  GeglChantOperation *chant = GEGL_CHANT_OPERATION (op);
  gdouble ux=0, uy=0;
  gdouble l;

  ux = chant->x;
  uy = chant->y;

  l = sqrt(uy*uy + ux*ux);
  ux /= l;
  uy /= l;

  matrix [0][0] = 2*ux*ux - 1;
  matrix [1][1] = 2*uy*uy - 1;
  matrix [0][1] = matrix [1][0] = 2*ux*uy;
}