for ($i = $this->h3d; $i >= 0; $i--)
{
//imagearc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color]);
for ($i = $this->h3d; $i >= 0; $i--)
{
//imagearc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color]);