topic Add NAIP Imagery as a Map Service in ArcGIS API for Flex Questions

Add NAIP Imagery as a Map Service

MattShetzer — Fri, 23 Jul 2010 17:09:47 GMT

Hi All,
I'm trying to add the latest NAIP for Colorado from the USDA to my Flex Project. I'm struggling with this, and not able to display the data.

The service I'm trying to access is at:
http://gis.apfo.usda.gov/ArcGIS/rest/services/NAIP_Imagery/Colorado/MapServer

and the line of code in the SFV Config.xml calling the service is:
<mapservice label="Test Colorado NAIP" type="tiled" visible="true" alpha="1" icon="com/esri/solutions/flexviewer/assets/images/icons/i_shuttle.png">http://gis.apfo.usda.gov/ArcGIS/rest/services/NAIP_Imagery/Colorado/MapServer</mapservice>

Thanks in advance for your help !!!

Matt Shetzer

Re: Add NAIP Imagery as a Map Service

RobertScheitlin__GISP — Fri, 23 Jul 2010 17:21:14 GMT

Matt,

When you go to the link that you provided the REST Service Directory tells you that you are working with a dynamic map service and not a tiled one. You can determine this by seeing that there is no LOD defined in the service directory. So all you need to do is change the type="dynamic" in your config.xml and you should be good to go.

Re: Add NAIP Imagery as a Map Service

MattShetzer — Fri, 23 Jul 2010 17:29:02 GMT

Perfect !!! That did the trick !!

Thanks Robert.

Re: Add NAIP Imagery as a Map Service

MattShetzer — Sun, 01 Aug 2010 04:01:09 GMT

Everything works great in Development and when I test in Flex, but when I push it up to the Server, the Imagery just appears as a gray background, and is not loading anything.

Does anyone have any ideas?

Thanks,
Matt

Re: Add NAIP Imagery as a Map Service

RobertScheitlin__GISP — Sun, 01 Aug 2010 10:45:41 GMT

Matt,

They do not seem to have a crossdomain.xml file on their server. Flex is looking for http://gis.apfo.usda.gov/crossdomain.xml and can not find it. Adobe has a concept call security sandboxes and when you are developing on your dev machine you are in a local trusted sandbox and can see their map service with out the crossdomain.xml but when you deploy to your server you are no longer in the local sandbox and Flex requires the crossdomain.xml on their server. The other option beside contacting them and asking them to put a crossdomain.xml on thier server is to use the proxy server that comes with Flexviewer. Using a proxy allows you to connect with their map service without the crossdomain.xml

More info on crossdomain here: http://help.arcgis.com/en/webapi/flex/help/content/deploy_application.htm

More info in using a proxy here: http://help.arcgis.com/en/webapi/javascript/arcgis/help/jshelp_start.htm#jshelp/ags_proxy.htm