[Cartoweb-users] Problem creating new layers

[Oliver Christen]

By the way, inserting a layer via mapOverlay only create a new layer on the map image, it will not create a new entry in the menu layer tree.
Layers in the layer tree can only be selected/unselected if they already exist in your layers.ini, as far as I know.

You could eventualy use the same mecanism as the ogcLayerLoader and trigger layer insertion via the use of the userLayers variable. See ClientOgcLayerLoader, the parts around $userLayer = new UserLayer();

I have never do that myself but I presume it should be possible.

regards
Oliver
  ----- Original Message ----- 
  From: Nicolás Eugenio Ozimiça 
  To: Oliver Christen 
  Cc: cartoweb-users at lists.maptools.org 
  Sent: Thursday, July 17, 2008 4:42 PM
  Subject: Re: [Cartoweb-users] Problem creating new layers


  You're right! 

  Here is the code that tries to make visible a new layer (simulacionesGrupo):

      public function filterPostRequest(FilterRequestModifier $request) {
          $layerList = $request->getValue('layers');
          $layerList[] = 'simulacionesGrupo';
          $request->setValue('layers', $layerList); 
          $this->tempinfo = implode('--', $layerList);
      } 

  it is in the Client part of a plugin that implements FilterProvider.

  To create the layer:

      function initializeRequest($requ) {
          if ($requ) {
              $pluginManager = $this->serverContext->getPluginManager();

              if (empty($pluginManager->mapOverlay))
                  throw new CartoserverException("mapOverlay plugin not loaded, ");

              $mapOverlay = $pluginManager->mapOverlay;
              $layer = new LayerOverlay();
              $layer->name = "simulacionesGrupo";
              $layer->action = BasicOverlay::ACTION_INSERT;
              $layer->data = "raster/ozono.99.tif";
              $result = $mapOverlay->updateMap($layer);
          }
      }

  it is in the Server part of the same plugin that extends ClientResponderAdapter.

  Anyway, if the "simulacionesGrupo" layer is defined in the mapfile, and the line with ACTION_INSERT is not used in the last piece of code, and the next line is commented in 'layers.ini':
  ; mapInfo.initialMapStates.default.layers.simulacionesGrupo.selected = true

  it doesn't show up in the main map.




  On Thu, Jul 17, 2008 at 10:25 AM, Oliver Christen <oliver.christen at camptocamp.com> wrote:

    Hi

    without looking at your code, I cant really know what may or may not happens.

    regards
    Oliver
      ----- Original Message ----- 
      From: Nicolás Eugenio Ozimiça 
      To: cartoweb-users at lists.maptools.org 
      Sent: Thursday, July 17, 2008 4:16 PM
      Subject: [Cartoweb-users] Problem creating new layers


      Hi all!

      I'm using the 'mapOverlay' plugin in order to modify the layers of my project. It has worked well to modify existing layers, but when I try to insert a new one, it simply does nothing.

      Perhaps it is related to another problem I'm facing: I can only hide a layer with "FilterProvider". If I try to make visible a layer that is not set as visible by default in the "layers.ini" file, nothing happens...

      I hope someone could help!
      Thanks in advance!

      -- 
      Nicolás Eugenio Ozimiça
      Universidad de Chile 


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  -- 
  Nicolás Eugenio Ozimiça
  Universidad de Chile 
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