Placename/boundary caching

[KevinNCSU]

Are there cache packs for the placename and country boundary layers available for download? I've got imagery I want caching thanks to help from all the threads and programs people have written, but haven't seen anything mentioned about the placename or boundary layer data.

[bull]

http://www.worldwindcentral.com/wiki/Add-on:Classic_Placenames_cache_pack

I think there are some boundary packs on there somewhere too.

[tve]

Here you go...


Cheers!
-tve

[KevinNCSU]

Excellent, thanks a ton guys!

[tve]

I received a request for apps to fetch the other layers... so here you go....

The high res files, I have limited to my area of interest. You need to modify the lat/long angle loops and sector geometry to your area of interest....

[KevinNCSU]

Thanks alot! =)

[KevinNCSU]

For the fetching and caching of political boundaries, they seem to be downloading correctly, but they won't appear in world wind.

When I compare the cache of the one I let connect to the internet to the one that doesn't, the internet one seems to have PNG files and DDS files while the one whose cache is populated by the fetch scripts only has the DDS.

Any idea what might be causing this?

[toolshed]

When I compare the cache of the one I let connect to the internet to the one that doesn't, the internet one seems to have PNG files and DDS files while the one whose cache is populated by the fetch scripts only has the DDS.

I see this too. The correct DDS files are 257KB in size. Some of the ones downloaded are 5KB in size. When you look at the 5KB files with a binary reader, they have png headers.

EDIT: Just looked at the source. The URLBuilder class contains the following:


sb.append("&format=image/png");
sb.append("&styles=countryboundaries");
sb.append("&bgcolor=0x000000");
sb.append("&transparent=true");

[KevinNCSU]

The CountryBoundaries file in WorldWind contains the same lines though. I think you might be right about it being a problem with the 5KB vs 257KB files, though I'm not sure what to do about it.

Nevermind previous edit, they should definately be 257k when compared to the WorldWind cached data

[toolshed]

edit: or the 5KB ones might just be empty area with no boundaries, like ocean?

No, I just deleted level 0 (they were all correct DDS files) and refetched through the getPolitical call. Now they are all 5KB png files. There seems to be a missing conversion.

[toolshed]

Found fix.

replace run method in DownloadPostProcessor with this:


public ByteBuffer run(Retriever retriever)
{
if (retriever == null)
{
String msg = WorldWind.retrieveErrMsg("nullValue.RetrieverIsNull");
WorldWind.logger().log(java.util.logging .Level.FINE, msg);
throw new IllegalArgumentException(msg);
}

try
{
if (!retriever.getState().equals(Retriever. RETRIEVER_STATE_SUCCESSFUL))
return null;

if (retriever instanceof HTTPRetriever)
{
HTTPRetriever htr = (HTTPRetriever) retriever;
if (htr.getResponseCode() != HttpURLConnection.HTTP_OK)
{
System.out.println( "http error response" );
}
}

URLRetriever r = (URLRetriever) retriever;
ByteBuffer buffer = r.getBuffer();

final File outFile = WorldWind.dataFileCache().newFile(tile.g etPath());

if (buffer != null)
{
String contentType = r.getContentType();
if (outFile.getName().endsWith(".dds"))
{
// Convert to DDS and save the result.
buffer = DDSConverter.convertToDDS(buffer, contentType);
}

WWIO.saveBuffer(buffer, outFile);
return buffer;
}
}
catch (java.io.IOException e)
{
e.printStackTrace();
}
return null;
}
}

[KevinNCSU]

Nice work, looks like that handles the conversions, are political boundaries showing up for you now? They're still not for me yet =/

[toolshed]

Yeah, I see that now. The files are converted, but they contain zeros.:confused:

[tve]

Not sure why you guys are having problems. Use the original code I posted. Even though it has the png file extension. Just use it as posted. I verified it works. I'm just using parts of the code from the distribution.

Maybe the problem is that you didn't add the layer in the correct order?

Does your app load layers something similar to this order?

private BasicDemo.LayerAction[] layers = new BasicDemo.LayerAction[]{
new BasicDemo.LayerAction(new SkyColorLayer(), false),
new BasicDemo.LayerAction(new BMNGSurfaceLayer(), true),
new BasicDemo.LayerAction(new LandsatI3(), true),
new BasicDemo.LayerAction(new USGSDigitalOrtho(), false),
new BasicDemo.LayerAction(new USGSUrbanAreaOrtho(), false),
new BasicDemo.LayerAction(new USGSTopographicMaps(), false),
new BasicDemo.LayerAction(new EarthNASAPlaceNameLayer(), true),
new BasicDemo.LayerAction(new CountryBoundariesLayer(), true),
new BasicDemo.LayerAction(new CompassLayer(), true),
};

-tve

[tve]

oops... may have spoken too soon. I seem to be having problems now that I tried moving my images out of the way... hang on...
-tve
Not sure why you guys are having problems. Use the original code I posted. Even though it has the png file extension. Just use it as posted. I verified it works. I'm just using parts of the code from the distribution.

[tve]

oops... may have spoken too soon. I seem to be having problems now that I tried moving my images out of the way... hang on...
-tve

I'm thinking that the problem may be something that changed on the NASA servers. This might be why that layer isn't enabled by default? TAG?

It did work for me at one point...., but it doesn't now.

-tve

[KevinNCSU]

I don't think its a problem with the fetch scripts now either. When I clear out my cache and just run the program normally connected to the internet it downloads the dds files for the politcal boundaries but they still never show on screen

[KevinNCSU]

The files seem to be downloading and converting correctly now, I'm guessing something was wrong with the NASA servers before.

[withak]

Not an uncommon issue. :)