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6

The cache directory at C:/Users/Russell/.qgis/cache/ is actually the WMS-C/WMTS cache as @jef has mentioned. That's why it's in the Network tab of the Options dialog along with the WMS search address and proxy settings. The naming is unfortunate but it has nothing to do with the render caching which is used to speed up redraws and other common operations. ...


4

There are several overlapping issues here. ArcGIS Desktop is single-threaded, but can make use of a multi-core machine because it can then get the exclusive use of one core. Unless there's a Direct Connect connection to an enterprise geodatabase, in which case, each connection will be run as an additional thread. ArcGIS Server supports multiple cores ...


3

I think you should investigate Basemap Layers: Basemap layers are a kind of map layer that provides a framework onto which you display your dynamic operational information. Basemap display performance is very fast. Since basemap layers are relatively static and do not change frequently, their display can be computed once and reused many times. ...


2

Luckily a standardized series of bounding boxes already exists, the TMS tile scheme. If your ok with making more requests for smaller amounts of data, splitting it into tiles can work very well, it caches well, and makes nice looking URLs. Once you have a tile coordinate(zoom/x/y) it can be converted to a bounding box, fetch the data, then depending on the ...


2

You name 500MB cache size because of the setting you get when running the caching process after publishing a map service. This is the default setting you get in ArcGIS Desktop which can be seen in ArcMap > Customize > ArcMap Options > Sharing tab. You can disable this warning if you know that you are going to generate multiple caches of bigger size. Why ...


2

The updated=1372394902000 Parameter is basically the Unix epoch time in milseconds. Your tile is being requested with a HTTP GET request. What you need to know about Http Get's is that you can pile on any arbitrary parameters at the end of a Get Request, and if the parameter does not make sense to the server, it will ignore it. This fact is exploited ...


2

I was indeed correct with my hypothesis. The correct way to set up Apache so that our requests are never duplicated unless required is to set a Expires mod in the HTTPD.conf file. First, enable the module: LoadModule expires_module modules/mod_expires.so Then, turn on caching for PNG images: ExpiresActive on ExpiresByType image/png "access plus 1 year" ...


1

As you can see here it is a known issue. There is bug submitted to GWC GitHub: https://github.com/GeoWebCache/geowebcache/issues/232


1

Tile packages are just normal zip files which contain the images in a "bundle" format along with metadata in more familiar formats. The bundle format is proprietary and undocumented. Some details including initial code sample are available on the ArcGIS forums.


1

You can't do it in a single service, but you could do it with two services using scale ranges for visibility. Cache the one and leave the other dynamic. As far as creating tiles on demand: Space, I understand. If you don't have it you don't have it. Speed "issues" only occur for the first person ever to request the area. Thereafter, it goes as fast as ...


1

The general workflow is like this: Design your Map in ArcMap with all the layers that you need. Set the symbology according to your needs. Publish the Map as a MapService on ArcGIS Server. Cache the Service if required. If a service is cached, then while defining the cache, the administrator selects the scales at which the service will be cached and ...


1

There are two issues that might cause the original question: 1. the soc account does not have access; 2. there are too many of the files Please make sure that the tiffs are located where the soc account has access to-> republish the service->delete the cache folder ->recreate the cache You can try with all the tiffs in one map document. Also recreate ...


1

I also had the same problem. Sometimes you can not restart the machine. You can "fix" this problem if you set "create tiles on demand" (in ArcGIS Server) Also you can use tool "manage map server cache" (if you have ArcMap). Here you can select layers for generating cache.


1

One option is to store the features in the mobile local storage like a sqlite database, you can even store it in a html5 web sql database. When it's offline you can create the layer from stored feature. Edit: Following is the code to save the features (in geojson format) to local storage var features = ...; // This is the features you will store in local ...


1

Check the server cache directory. with... http://mygisserver.com/arcgis/admin/system/directories/arcgiscache Ensure it is registered with the server. Make sure the cache geoprocessing service is running. You might also check the jobs folder to see if there is something hung up there. http://mygisserver.com/arcgis/admin/system/jobs Also check the ...


1

Monotonically increasing is a maths term that roughly means that "the next one is greater than this one". It doesn't have to be by the same amount each time. So in the context of GeoWebCache configuration, the code expects that the expiration rules increase in zoom level. You've pretty much got it in your second example: <expireCacheList> ...


1

Set the data frame coordinate system (right click on the data frame name, Layers by default, click on properties and choose coordinate system) to the coordinate system that you want to cache (epsg 3857, 102100 is superseded by the now documented 3857) and your imagery from SDE will reproject within your dataframe. When your caching runs it will take that ...


1

I know this question has been asked some time ago, but just wanted to share what ESRI said about this if others run into this issue. The "Automatic cache updating" radio button or honored when you are going through the publishing or re-publishing process. If you don't want the server to cache your service automatically, just make sure the setting is set to ...


1

If you are using Quantum GIS, you could utilise the OpenLayers plugin. Progams such as Mapertive can download tiles from OpenStreetMap, using the generate-tiles method. Other programs may be available for other sources. Mapertive exports the images into the 'Tiles' subfolder. Once you have the tiles downloaded, make a copy of one of the files in the ...


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A year later, the better answer is to use the Multidimensional Supplemental Tools, which are described in this blog post. The tools ship with a specially compiled version of NetCDF4-Python, and include a number of useful features for interacting with NetCDF data sources. If you're doing analysis that is more complex with NetCDF objects, also look into the ...



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