function setScale($scale)
    {
        $oldScale = $this->scale;
        $this->scale = $scale;
        $this->onScale($oldScale);
    }
function setScale($scale)
    {
        $oldScale = $this->scale;
        $this->scale = $scale;
        $this->onScale($oldScale);
    }
function setScale ( $ scale ) { $ oldScale = $ this -> scale ; $ this -> scale = $ scale ; $ this -> onScale ( $ oldScale ) ; }
Sets the scale factor of the element. 1=original size, 2=double size, 0.5
=half size
@param float
Sets the scale factor of the element . 1 = original size 2 = double size 0 . 5 = half size