function testMakeMatrix()
{
$data = array(array(3.0, 3.0, 3.0), array(3.0, 3.0, 3.0));
$q = Math_Matrix::makeMatrix(2, 3, 3.0);
$this->assertEquals($data, $q->getData());
}
/**
* Returns the Math_Matrix object of size (nrows, ncols), filled with the value 0 (zero)
*
* @static
* @access public
* @param integer $nrows number of rows in the generated matrix
* @param integer $ncols number of columns in the generated matrix
* @return object a Math_Matrix instance on success, PEAR_Error otherwise
* @see Math_Matrix::makeMatrix()
*/
function &makeZero($nrows, $ncols)
{
/*{{{*/
return Math_Matrix::makeMatrix($nrows, $ncols, 0);
}
public function create($array)
{
// test conditions
// TODO: test min/max
// test area
if ($this->minArea * ($this->minWidth * $this->minHeight) >= $this->maxArea * ($this->maxWidth * $this->maxHeight)) {
throw new Exception('Min/max area overlap, please adjust settings');
}
// create matrix
$this->matrix = Math_Matrix::makeMatrix($this->ysize, $this->xsize, -1);
// variable to define whether filling is active
$fill = false;
// return array
$positions = array();
foreach ($array as $k => $v) {
// get next empty space
$pos = $this->searchNextPosition();
// fill horizontal?
if ($pos[1] == 0) {
// are we at the top?
if ($pos[0] != 0) {
// are we not at [0,0] ?
if (rand(1, $this->fillTopProbability) == 1) {
// roll a dice for top position fill
// calculate fill position
$fill = $this->searchXBoundFrom($pos[0]) + $this->minWidth;
if ($this->debug) {
echo 'fill from top x=' . $fill . '<br/>';
}
} else {
$fill = false;
}
}
} elseif ($fill === false) {
// fill from halfway?
if (rand(1, $this->fillHalfwayProbability) == 1) {
// roll a dice halfway position fill
// calculate fill position
$fill = $this->searchXBoundFrom($pos[0]) + $this->minWidth;
if ($this->debug) {
echo 'fill x=' . $fill . '<br/>';
}
}
}
// get dimensions
$rand = $this->randomDimensions();
$randWidth = $rand['width'];
$randHeight = $rand['height'];
if ($fill !== false) {
$randWidth = $fill - $pos[0];
}
// height available?
$heightAvailable = $this->availableHeightFrom($pos[0], $pos[1]);
if ($heightAvailable <= $this->minHeight) {
$height = $heightAvailable;
} else {
if ($heightAvailable <= $this->minHeight * 2) {
$height = $heightAvailable;
} else {
$height = min($randHeight, $heightAvailable - $this->minHeight);
}
}
// random width
$width = $randWidth;
// debug
if ($this->debug) {
echo $k . ': ' . $height . '(' . $heightAvailable . ')x' . $width . ' @ [' . $pos[0] . ', ' . $pos[1] . ']<br/>';
}
// set ids
for ($x = $pos[0]; $x < $width + $pos[0]; $x++) {
for ($y = $pos[1]; $y < $height + $pos[1]; $y++) {
$this->matrix->setElement($y, $x, $k);
}
}
// set item position
$positions[$k] = array('x' => $pos[0] * $this->multiplier, 'y' => $pos[1] * $this->multiplier, 'w' => $width * $this->multiplier, 'h' => $height * $this->multiplier);
}
// debug: print matrix
if ($this->debug) {
echo '<pre>' . $this->matrix->toString('%3.0f') . '</pre>';
die;
}
// return array
return $positions;
}