[Cartoweb-users] How can this error be handled

[VenuGopal Papasani]

Hi Group/ Pierre GIRAUD/Damien,
                   I am very much thankful for your valuabel
suggestions.Igot my problem solved with the help of your
suggestion.The problem occured because of the extra lines after my code. I
think it should not be a problem because nothing written in those lines
after my code.Any way after removing those extra lines i got my error
rectified.
                 Thanking you once again.

Regards,
venu.
On 3/9/06, Pierre GIRAUD <pierre.giraud at camptocamp.com> wrote:
>
> I didn't take a look at your code but the error you sent us isn't really
> explicit.
> Probably, you have an "echo" or "print_r" somewhere that prevent the
> error to display correctly.
>
> Are you able to check this and send back the real error message on this
> list ?
>
> Regards
>
> Pierre GIRAUD
>
>
> VenuGopal Papasani wrote:
>
> > Hi,
> >   I have written a plugin which colors the polygon of my map.The
> > following is the code wriiteen for
> > c:\wamp\www\cartoweb3\plugins\ctr\server\ServerCtr.php.
> >
> >   Before this code there was no problem with the map the map is
> > displaying after writing this I was getting  the following exception.
> >
> >            I have also made one more changes previously my project
> > name is ctr  and i used to execute it as ctr.php.As
> > <http://ctr.php.As> my plugin name and my project names are same i
> > changed it to chittoor.
> >
> >          Now I want to know where the problem actually is.Is it in the
> > code or in Renaming my file names.No doubt i have renamed everything
> > required.
> >
> >            The Exception is
> >
> >
> > *Fatal error*: Uncaught exception 'CartocommonException' with message
> > 'Error [2, Cannot modify header information - headers already sent by
> > (output started at
> > C:\wamp\www\cartoweb3\plugins\ctr\server\ServerCtr.php:123),
> > C:\wamp\www\cartoweb3\client\FormRenderer.php, 301] Backtrace: file:
> > UNKNOWN - UNKNOWN call: Common::cartowebErrorHandler(2, "Cannot modify
> > header information - headers already sent by (outp...",
> > "C:\wamp\www\cartoweb3\client\FormRenderer.php", 301, Array(1)) file:
> > 301 - C:\wamp\www\cartoweb3\client\FormRenderer.php call:
> > header("HTTP/1.1 500 Internal Server Error") file: 1032 -
> > C:\wamp\www\cartoweb3\client\Cartoclient.php call:
> > FormRenderer->showFailure(Object(SoapFaultWrapper)) file: 38 -
> > C:\wamp\www\cartoweb3\htdocs\client.php call: Cartoclient->main()
> > file: 3 - C:\wamp\www\cartoweb3\htdocs\chittoor.php call:
> > require_once("C:\wamp\www\cartoweb3\htdocs\client.php") ' in
> > C:\wamp\www\cartoweb3\common\Common.php:275 Stack trace: #0 [internal
> > function]: Common::cartowebErrorHandler(2, 'Cannot modify h... in
> > *C:\wamp\www\cartoweb3\common\Common.php* on line *275*
> >
> >
> >            Here is my code
> >
> > ServerCtr.php
> > ------------------
> > <?php
> >
> > require_once(CARTOWEB_HOME . 'common/BasicTypes.php');
> > require_once('DB.php');
> >
> > class ServerCtr extends ClientResponderAdapter
> >     implements InitProvider
> > {
> >
> >
> >     private $log;
> >
> >     public function __construct()
> >     {
> >         parent::__construct();
> >         $this->log =& LoggerManager::getLogger(__CLASS__);
> >     }
> >
> >
> >     public function getInit()
> >     {
> >         // Things to learn from the LayerInit
> >     }
> >
> >     public function getValues($id)
> >     {
> >         $values = array();
> >         for($k=0;$k=1105;$k++)
> >         {
> >             $values[k] = rand(0,100);
> >         }
> >         return $values;
> >     }
> >
> >     public function initializeRequest($requ)
> >     {
> >         $msMapObj = $this->serverContext->getMapObj();
> >
> >         $resultArray = $this->getValues($requ->dataElement_id);
> >         $msLayer = $msMapObj->getLayerByName('chittoot');
> >         $no_intervals = 5;
> >         $color = "Reds";  //dont't think this is necessary
> >         $this->colorMapFromData($resultArray, $msLayer, $no_intervals,
> > $color);
> >     }
> >
> >     public function
> buildClassExpressions($numberOfIntervals,$resultArray)
> >     {
> >         $max_val = max($resultArray);
> >         $min_val = min($resultArray);
> >         $intervalLength = ceil(($max_val -
> $min_val)/$numberOfIntervals);
> >         $idsPerClass = array();
> >         foreach($resultArray as $id => $value)
> >         {
> >             $classNo = floor($value/$intervalLength);
> >             $idsPerClass[$classNo] .= $id. ",";
> >
> >         }
> >
> >         $classes = array();
> >         for($i=0;$i < $numberOfIntervals+1;$i++)
> >         {
> >             if ($classNo[$i])
> >                 $classIds = substr($classNo[$i],o,-1);
> >             else
> >                 $classIds = "";
> >
> >              $classes[$i] = "([".$idcol. "] IN '" . $classIds .
> > "')";
> >         }
> >
> >         return $classes;
> >     }
> >
> >     public function colorMapFromData($resultArray, $msLayer,
> > $numberOfIntervals, $colorScheme)
> >     {
> >         $expressions =
> > $this->buildClassExpressions($numberOfIntervals,$resultArray);
> >         $r = 10;
> >         $g = 10;
> >         $b = 10;
> >
> >         for($i=0;$i<numberOfIntervals;$i++)
> >         {
> >             $msClass = ms_newClassObj($msLayer);
> >             $msClass->setexpression($expressions[$i]);
> >             $msStyle = ms_newStyleObj($msClass);
> >             $msStyle->color->setRGB($r,$g,$b);
> >             $r = $r + 10;
> >             $g = $g + 10;
> >             $b = $b + 10;
> >         }
> >     }
> > }
> > ?>
> >
> >
> >                      ctr.ini consists of
> > id_col="ID"
> >
> >                              Please give me the solution how to solve
> > this problem.
> >                             Thanks in Advance,
> >
> > Regards,
> > Venu.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >------------------------------------------------------------------------
> >
> >_______________________________________________
> >Cartoweb-users mailing list
> >Cartoweb-users at lists.maptools.org
> >http://lists.maptools.org/mailman/listinfo/cartoweb-users
> >
> >
>
>
> --
> _________________________________________________________
> Pierre GIRAUD
> Géomaticien, Analyste
>
> Camptocamp France SAS
> Savoie Technolac, BP 352
> 73377 Le Bourget du Lac, Cedex
>
> Tel : 00 33 4 79 44 44 93
> Mail : pierre.giraud at camptocamp.com
> http://www.camptocamp.com
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.maptools.org/pipermail/cartoweb-users/attachments/20060309/deb455c4/attachment-0001.html