problem with disappearing basemap

[Garey Mills]

Hi -

     I'm running OGP1 on a Redhat Linux machine, and it has been working perfectly for quite a while now. 

     But today I got a message that it wasn't working. I opened it up (http://gis.lib.berkeley.edu:9081) and the basemap isn't showing up. None of the basemap choices display.

     And there is nothing in the tomcat logs.

     Has anyone had this problem? Has something changed?

     Can you give me some idea how to debug this?

Any help appreciated;

Garey Mills

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[Barnett, Christopher S]

Hi Garey,

This has to do with a change in the Google maps javascript API code.

In mapDiv.js, there is a function: 

org.OpenGeoPortal.MapController.prototype.changeBackgroundMap 

This function adds a listener via the Google maps javascript API:

			google.maps.event.addListener(bgMap.mapObject, "tilesloaded", function() {
				  //console.log("Tiles loaded");
				  that.render(that.userDiv);
					jQuery(".mapClearButtonItemInactive").text("clear previews");
					that.userMapAction = true;
					jQuery(document).trigger("mapReady");
					//really should only fire the first time
					google.maps.event.clearListeners(bgMap.mapObject, "tilesloaded");
					jQuery("#geoportalMap").fadeTo("slow", 1);

				});
For some reason, “tilesloaded” is no longer being called when the first set of tiles is loaded.

You might try manually firing the “tilesloaded” event, like so:

google.maps.event.trigger(bgMap.mapObject, "tilesloaded”);

This isn’t perfect, since the whole point of having the listener is to wait for the tiles to be loaded. 

thanks,

Chris

[Garey Mills]

sorry to be thick, but is there someplace that you would recommend putting the trigger code?

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[Barnett, Christopher S]

Sorry Garey,

Put the trigger code right after the chunk listed below.

This must be Google update day. My gmail settings in my email client are now causing me problems.

-Chris

[Garey Mills]

Thanks Chris. That worked. Why is it only affecting OGP1?

Garey

[Chris Barnett]

Hi Garey,

I’m not totally sure yet. I’m working on a minor update to OGP2 that includes moving to OpenLayers 2.13.1 and am experiencing a similar issue. I’ll let you know when I figure it out!

thanks,

Chris

[Chris Barnett]

Sorry Garey,

Put the trigger code right after the chunk listed below.

Chris

On May 21, 2015, at 5:47 PM, Garey Mills <garey...@gmail.com> wrote:

[Dave Siegel]

Garey,

I just hit your site (http://gis.lib.berkeley.edu:9081/) and the base map, as well as selected layers are displaying fine for me. Perhaps it could be a simple browser caching issue?

Dave

D

_________________________

Dave Siegel

http://spatialtechnotes.blogspot.com

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[Garey Mills]

Thanks Dave. No, Chris was right. I put the line he sent triggering the 'tilesloaded' event into mapDiv.js and everything started working correctly.

Garey