public function Apply($target)
{
if ($target instanceof ALiVE_Matrix) {
return ALiVE_Matrices_Multiply($target, $this->ToMatrix());
} else {
if ($target instanceof ALiVE_Vector) {
return new ALiVE_2D_Vector($this->Apply($target->ToMatrix()));
} else {
if (is_array($target)) {
foreach ($target as $vector) {
w_assert($vector instanceof ALiVE_Vector);
}
$result = $this->Apply(ALiVE_Vectors_ToMatrix($target));
$ret = array();
for ($i = 0; $i < $result->M(); ++$i) {
$thismatrix = new ALiVE_Matrix(1, 4);
$thismatrix->Set(0, 0, $result->Get($i, 0));
$thismatrix->Set(0, 1, $result->Get($i, 1));
$thismatrix->Set(0, 2, $result->Get($i, 2));
$thismatrix->Set(0, 3, $result->Get($i, 3));
$ret[] = new ALiVE_2D_Vector($thismatrix);
}
return $ret;
}
}
}
throw new Exception('Invalid projection application argument');
}
public function Power($pow)
{
w_assert(is_int($pow) && $pow >= 0);
switch ($pow) {
case 1:
return clone $this;
default:
$result = ALiVE_Matrix_Create_Identity($this->Order());
for ($i = 0; $i < $pow; ++$i) {
$result = ALiVE_Matrices_Multiply($result, $this);
}
return $result;
}
}
