Possible to use OpenLayers in JS API (not other way around)

[JeffPace]

I know there are lots of examples of how to use ESRI resources in OpenLayers, i want to do the opposite.  Is there anyway to get a OpenLayer to display in a ESRI JS API application?

a sample would be really really useful.  Thank you.

[derekswingley1]

What do you want to do with OpenLayers?

[SamLarsen]

OpenLayers consumes layers from many different formats.  There is no 'OpenLayers' service to be consumed by other APIs.
Some commonly used layer types in OpenLayers include OpenStreetMap, WMS, WFS, TMS, KML, GeoRSS etc..
You can find many of these layer types also in the JavaScript API:
OpenStreetMapLayer
TiledMapServiceLayer
WMSLayer
WMTSLayer
KMLLayer
GeoRSSLayer

[JeffPace]

I have a WMS server I want to make tiled requests of.  It is not WMTS, only WMS.  OpenLayers handles this but I cant seem to figure out how to do it in the api.

Basically, i cant make level row col type requests, i need to make individual bounding box requests

  

   var wms = new OpenLayers.Layer.WMS("NASA Global Mosaic",
                                       "http://wms.jpl.nasa.gov/wms.cgi",
                                       {layers: "modis,global_mosaic"});

makes tiled requests, unless you set a singletile parameter, in which case it behaves as ESRI WMS

 

  var wms = new OpenLayers.Layer.WMS("NASA Global Mosaic",
                                       "http://wms.jpl.nasa.gov/wms.cgi",
                                       {
                                           layers: "modis,global_mosaic",
                                           transparent: true
                                       }, {
                                           opacity: 0.5,
                                           singleTile: true
                                       });

[NianweiLiu]

I'd try extend TiledMapServiceLayer, take the base map's tileInfo, run a few calculations to get the extent based on the row, level passed in by getTileUrl and construct the right WMS request.

Bring in openlayers seems quite a large overhead.

I have a WMS server I want to make tiled requests of.  It is not WMTS, only WMS.  OpenLayers handles this but I cant seem to figure out how to do it in the api.

Basically, i cant make level row col type requests, i need to make individual bounding box requests

  

[JeffPace]

agreed.  OK off to send if i can do this.

[KellyHutchins]

Jeff,

Have you seen the WebTiledLayer class added to v3.2 of the api?

http://help.arcgis.com/en/webapi/javascript/arcgis/help/jsapi/webtiledlayer.htm

Here's a sample showing how it works:
http://help.arcgis.com/en/webapi/javascript/arcgis/help/jssamples/layers_webtiled_many.html

[JeffPace]

yes i saw that, but i cant make row/col/level type requests, i need to make boundingbox width height type requests.

[derekswingley1]

I'm having a hard time understanding this. A bbox request is issued, but multiple images come back? Maybe OpenLayers is doing something different under the hood.

Is there a public example of OpenLayers using this service somewhere?

[JeffPace]

no no sorry.

when openlayers requests a wms image, you can choose two styles set via property.  If you choose "singleTile" it returns a single image, just like the esri WMS layer

if you do not set "singleTile", it sends a series of bbox/width/height requests (tile like requests), and assembles them, just like an esri tile layer.  However the requests are not /level/col/row format, they are bbox/width/height format (in the url).

http://www.mymanatee.org/lizardtech/iserv/docs/samples/wms-ajax-view.html

var wms = new OpenLayers.Layer.WMS("MODIS 2002", 
    "http://MCG-AP-GISAPP01.mcgad.local/lizardtech/iserv/ows", 
    {layers: 'MODIS',
    exceptions:"application/vnd.ogc.se_xml"},
    {tileSize: new OpenLayers.Size(256, 256), buffer: 1});
  map.addLayer(wms);