Message from mice32alpha on 02/12/2010

Fixed version of drawLine function:

   /* Draw a line between two points */
   function drawLine($X1,$Y1,$X2,$Y2,$Format="")
    {
     $R	    = isset($Format["R"]) ? $Format["R"] : 0;
     $G	    = isset($Format["G"]) ? $Format["G"] : 0;
     $B	    = isset($Format["B"]) ? $Format["B"] : 0;
     $Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
     $Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : NULL;
     $Cpt   = isset($Format["Cpt"]) ? $Format["Cpt"] : 1;
     $Mode  = isset($Format["Mode"]) ? $Format["Mode"] : 1;
     if (!$this->Antialias && $Ticks == NULL)
      {
       $Color = $this->allocateColor($this->Picture,$R,$G,$B,$Alpha);
       imageline($this->Picture,$X1,$Y1,$X2,$Y2,$Color);
       return(0);
      }
     $Distance = sqrt(($X2-$X1)*($X2-$X1)+($Y2-$Y1)*($Y2-$Y1));  
     if ( $Distance == 0 ) { return(-1); }
     $XStep = ($X2-$X1) / $Distance;
     $YStep = ($Y2-$Y1) / $Distance;
     if(!$this->Antialias)
      $Color = $this->allocateColor($this->Picture, $R, $G, $B, $Alpha);
     for($i=0;$i<=$Distance;$i++)
      {
       $X = $i * $XStep + $X1;
       $Y = $i * $YStep + $Y1;
       if ( $Ticks != NULL )
        {
         if ( $Cpt % $Ticks == 0 )
          { $Cpt = 0; if ( $Mode == 1 ) { $Mode = 0; } else { $Mode = 1; } }
         if ( $Mode == 1 )
	  {
            if(!$this->Antialias)
             imageSetPixel($this->Picture, $X, $Y, $Color);
            else
             $this->drawAntialiasPixel($X,$Y,array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha));
          }
         $Cpt++;
        }
       else
        $this->drawAntialiasPixel($X,$Y,array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha));
      }
     return(array($Cpt,$Mode));
    }

Message from Jean-Damien on 03/12/2010

Thanks for this fix, indeed I've forgotten to test the lib in "low-res" mod.. this is something I've written more than one year ago ;o)

I'm astonished by the rendering speeding while turning of the antialias engine.

forgotten to say : this fix is implemented in the next sub release.