[Mapserver-users] Problem coloring layer

[Sam Choudry]

Hello,

    Here is the same old problem still not solved. I want to change the
color of my area layer "nal-blk" according to user input. For that I am
using the code:

	if($r!='' && $g!='' && $b!='')
	{
		$layer = $map->getlayerbyname("nal-blks");
		$class = $layer->getclass(0);
		$layer->open($map->shapepath);
		$index = findindex($r,$g,$b);
		$class->set('color',index);
	}



    I am using a function I received from one of the list members,
	
	function findindex($r,$g,$b)
 	{
   		GLOBAL $map;
   
   		$r1=(int) $r;
   		$g1=(int) $g;
   		$b1=(int) $b;
 
   		for($i=-10;$i<0;$i++)
    		{
      			$col=$map->getColorByIndex($i);
      
      			$tr=$col->red;
      			$tg=$col->green;
      			$tb=$col->blue;

      			if(($r1 == $tr) && ($g1 == $tg) && ($b1 == $tb))
       			{
         			$in=$i;
         			break;      
       			}  
     		}
   		$in=$in+1;
   		return($in);
 	}


  The Error message are :
	Warning: Wrong parameter count for open() in 
	c:\inetpub\wwwroot\php\nalbari.php on line 21

	Fatal error: Property 'color' does not exist in this object.
	in c:\inetpub\wwwroot\php\nalbari.php on line 23


  The Map File snippet is also provided:

	LAYER 			#DISTRICT BLOCKS#
	  NAME "nal-blks"
	  DATA nal-blks
	  STATUS ON
	  TYPE POLYGON
	  CLASS
	   NAME '0'
	   COLOR 219 250 253
	   OUTLINECOLOR 154 181 250
	  END
	END        

  What can be the possile solution to this? Regards,

					Samuzzal

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