Tag: globe services
The Esri ArcGIS Online Basemap system (i.e., services.arcgisonline.com, server.arcgisonline.com) will be upgraded from ArcGIS 10.2 for Server to ArcGIS 10.3 for Server on Tuesday June 9. The update will improve system stability and performance, with no known issues at this … Continue reading
The Esri ArcGIS Online Basemap system (i.e., services.arcgisonline.com, server.arcgisonline.com) was upgraded last night to ArcGIS 10.2 for Server. See Esri Basemap System Upgrade to ArcGIS 10.2 for Server for details about the new capabilities in ArcGIS 10.2 for Server and … Continue reading
NOTE AS OF FEB. 21, 2014: The basemap system upgrade to ArcGIS 10.2 for Server occurred last night. See Basemap System Upgrade to ArcGIS 10.2 for Server Completed for the latest information on this update. The Esri ArcGIS Online Basemap … Continue reading
NOTE AS OF FEB. 21, 2014: The basemap system upgrade to ArcGIS 10.2 for Server occurred last night. See Basemap System Upgrade to ArcGIS 10.2 for Server Completed for the latest information on this update. NOTE AS OF FEB. 5, … Continue reading
NOTE AS OF FEB. 5, 2014: The update was postponed because of some issues detected during the upgrade. The update will be re-scheduled as soon as the issues are resolved, and this post will be updated to reflect our plans. … Continue reading
NOTE AS OF FEB. 21, 2014: The basemap system upgrade to ArcGIS 10.2 for Server occurred last night. See Basemap System Upgrade to ArcGIS 10.2 for Server Completed for the latest information on this update. As mentioned in the What’s … Continue reading
6/30/10–Last December, a new set of ArcGIS Online services were published in the Google Maps/Bing Maps tiling scheme in Web Mercator Auxiliary Sphere (WKID 102100). These services are meant to replace an older set of services in the ArcGIS Online tiling scheme in GCS WGS84.
Many of you have already migrated to the newer services in Web Mercator Auxiliary Sphere. These services are updated twice a year, and the latest update was this month. Those of you who haven’t migrated yet, we encourage you to make plans to do so. The older set of services in the original ArcGIS Online tiling scheme, while still available, have not had any content updates since June of last year.
We announced last December that the older services would remain available for at least six months. We’ve heard back from some of you that more time was needed to complete your migration, and we have extended the retirement another six months until December 2010. If you are still using these services, you should be actively making plans to migrate your applications to use the services in Web Mercator Auxiliary Sphere. The following table lists the services that are deprecated along with the associated service in Web Mercator Auxiliary Sphere.
What services do I switch to?
If you are using one of these services in the ArcGIS Online tiling scheme that are deprecated
Switch to this service in the Google/Bing Maps tiling scheme
Note for ArcGIS Desktop 9.2 users: The Web Mercator Auxiliary Sphere coordinate system is not supported in 9.2. ArcGIS Desktop 9.3 or more recent is required to use services in the Google/Bing Maps tiling scheme.
If you have questions, please post them to our forum at http://forums.arcgis.com/forums/30-ArcGIS-Online.
12/22/09–As announced in November, the ArcGIS Online servers were updated late last week (services.arcgisonline.com, server.arcgisonline.com, premium.arcgisonline.com), and the hosted ArcGIS Online map services were migrated to the Google Maps/Bing Maps tiling scheme in Web Mercator Auxiliary Sphere (WKID 102100). These map services may be used for both 2D and 3D display.
New (updated) maps
The following new maps were published in Web Mercator Auxiliary Sphere (WKID 102100) using the ArcGIS Google Maps/Bing Maps tiling scheme. The new maps are listed in the table below along with the existing maps and globes using the ArcGIS Online tiling scheme that are updated with these new maps.
|New maps in Google Maps/Bing Maps tiling scheme||Existing maps in ArcGIS Online tiling scheme being updated|
Summary of updates to these maps
The new World_Imagery map consolidates the best of the USA Prime Imagery map and earlier World Imagery map, including the best available imagery for the United States plus high-resolution imagery around the world. The map includes more recent and detailed imagery for the United States, including i-cubed Nationwide Prime 1m or better resolution imagery featuring Aerials Express 0.3 to 0.6m resolution imagery for metropolitan areas, and Getmapping 1m imagery for Great Britain.
The new World_Street_Map includes enhancements to cartography at all scale levels, and updates to the latest AND global road data and Tele Atlas street data at large scales. It also includes additional coverage for large scale maps for other countries and regions such as South Africa, Japan, Thailand, Colombia, and Hong Kong.
New demographic maps introduced
Seven new demographic services featuring 2009 data from ESRI’s demographic data team were also published in Web Mercator Auxiliary Sphere (WKID 102100):
Maps updated to Web Mercator Auxiliary Sphere
The following maps previously published in Web Mercator (WKID 102113) were updated to Web Mercator Auxiliary Sphere (WKID 102100):
3D globes removed from the Premium environment
The following 3D globe services were removed from the Premium environment (premium.arcgisonline.com). Subscription users who want to use these 3D globe services in a production environment can access them on the freely available servers (services.arcgisonline.com and server.arcgisonline.com):
Note about maps and globes in the current ArcGIS Online tiling scheme
The existing map and globe services in the ArcGIS Online tiling scheme will remain available for at least six months on the ArcGIS Online servers and, depending on need, may remain available longer. Although the map and globe services will remain available, the content in these services will no longer be updated.
For details about the migration, see Migrating map tiling schemes in ArcGIS Online Help.
Note for ArcGIS Desktop 9.2 users: The Web Mercator Auxiliary Sphere coordinate system is not supported in 9.2. ArcGIS Desktop 9.3 or more recent is required to use these new services.
If you have questions, please post them to our forum at http://forums.esri.com/forums.asp?c=188.
7/9/09—Several new maps were added to ArcGIS Online this past week. As mentioned in our earlier announcement in May, this includes several maps in the Google Maps/Bing Maps tiling scheme. These consist of 12 USA demographic maps featuring recently released 2009 data from ESRI’s demographic data team, a world terrain basemap and a world reference overlay map designed for use with thematic maps like demographics, and a world basemap from DeLorme. Also included is a new world topographic map that was compiled to uniform cartography from best available sources assembled from data providers such as the USGS, EPA, FAO, NPS, AND, and TANA. Learn more about the world topographic map in the ESRI Mapping Center.
In addition, a few final updates and additions were made to maps in the traditional ArcGIS Online tiling scheme. This includes a new World IKONOS Cities Imagery map with high-resolution imagery for over 700 metro areas around the world, designed to be overlaid on the USA Prime Imagery or other imagery basemaps. Lastly, there was an update to our world user imagery map with high-resolution imagery for the State of Pennsylvania and Ventura County, California.
To learn about these new maps, visit the following links in the new ArcGIS Online sharing application:
Google Maps/Bing Maps tiling scheme
- DeLorme World Basemap
- World Terrain Base
- World Topographic Map
- World Reference Overlay
- USA 1990-2000 Population Change
- USA Average Household Size
- USA Daytime Population
- USA Diversity Index
- USA Labor Force Participation Rate
- USA Median Age
- USA Median Home Value
- USA Median Household Income
- USA Population Density
- USA Projected Population Change
- USA Recent Population Change
- USA Unemployment Rate
ArcGIS Online tiling scheme
The following maps in the ArcGIS Online tiling scheme were updated to include coverage for the State of Pennsylvania and Ventura County, CA:
- World User Imagery globe service
- World User Imagery map service
- World User Imagery Coverage map service
If you have previously used any of these updated map services, you may need to clear your cache in order to see the updates.
One purpose of this blog is to share some of the things we’ve learned about our software by using it ourselves. The ArcGIS Online project uses the ArcGIS Server map and globe caching technology. In this post, we share a technique we’ve developed to create 3D caches for ArcGIS Online.
For performance and appearance benefits, many of the 3D globe caches on ArcGIS Online were created originally from 2D fused map caches. These 2D caches were overlaid on the globe and cached to make globe tiles. This technique improves the performance of the globe service because it yields only one cached layer. It also improves the appearance of the service because anti-aliasing effects in the 2D cache transfer to the 3D cache. This post lists the steps that you can follow to create a 3D cache from a 2D cache.
The instructions in this post are written for intermediate to advanced ArcGIS Server users. Before attempting this technique, it’s helpful to have some previous experience publishing ArcGIS Server services, creating map caches, and connecting to GIS services in ArcGlobe.
Create the 2D map cache
The first step in this process is to create the 2D cached map service. Start by using ArcMap to create an attractive map document that is designed for display at some pre-determined scale levels. You’ll need to select the scale levels you want cached and then apply the appropriate symbology for each scale level. You can find tips for this process in Planning a map cache.
Below is a list of scale levels used by ArcGIS Online 2D caches. These scale levels translate well to the fixed scale levels used by ArcGIS Explorer and ArcGlobe, and are strongly recommended if you plan on eventually creating a 3D cache from your 2D cache. The high-precision values of the scales prevent tiles from overlapping at the edge of the globe near the International Date Line. If your map does not have worldwide coverage, you do not have to enter all of the decimal places for these numbers, but it’s recommended that you stay close to these numbers for the best visual effects. You do not have to use all of the scales; you can use a sequential subset of them.
Recommended scales for your 2D cache
- 147748799.285417 (To clarify, this corresponds to approximately 1:147,748,799 scale)
- 73874399.6427087 (This corresponds to approximately 1:73,874,299)
- 36937199.8213544 (Etc.)
Once you’ve finished designing and creating your map document, you should publish it as an ArcGIS Server map service and create a map cache. If using the above values, you can copy and paste them directly into the Generate Map Server Cache tool. This post does not focus on the details of publishing the 2D service and generating the cache, but ample instructions are available in the ArcGIS Server Help.
Configure a custom error for missing tiles
A previous post on this blog explained how you can configure your web server to return a blank or “No data available” image in areas where a client cannot find a cache tile. This is an important step when you’re generating a 3D cache from a 2D cache because the tile edges may not always line up between the two types of caches. The 3D cache generating process will perform better with a blank or “No data available” tile than it will when no tile is found. Follow the steps at this link to configure your web server to return the blank tile: Configuring your server to display a “Data not available” tile for empty map cache areas.
Create a globe document from the 2D service
Now that you have a 2D map service running, you can add it to an ArcGlobe document. The service will be draped over the globe in 3D. Follow these steps to create and appropriately configure the document:
- Start ArcGlobe
Tip: If you’re using ArcGlobe in a remote desktop session, you may get better performance by resizing the application window to eliminate the globe portion of the display. You don’t need to see the globe during these steps.
- Remove the default layers named Continents and World Image.
- Click Tools > Options and click the Cache tab.
- Set the Cache path to be the same as the server cache directory where you want your globe cache to be created, with “GlobeCache” appended to the end (Example: \myServercacheGlobeCache) This is an application-level property, so you may want to make note of the original cache path and set this value back the next time you use ArcGlobe.
- Click OK to dismiss the options dialog, then click the Add Data button.
- Add the 2D map service that you created in the previous steps. Be sure to use an Internet connection to ArcGIS Server (not a local connection). ArcGlobe can display the 2D service draped over the globe.
- Right-click the map service layer and select Properties.
- In the Globe General tab, modify the Layer Name and Description as you like.
- Click the Cache tab
- If you’re creating a base map layer, such as satellite imagery or a street map, check “Use lossy spatial compression”. If you’re creating a transparent reference layer, such as boundaries or a road network, this compression is not necessary.
- If you are using the recommended ArcGIS Online scale levels listed above, change the minimum cell size to twice the calculated value. Leaving this unchanged will cause your cache to grow larger than necessary.
- Click OK to dismiss the dialog.
- Save the globe document and close ArcGlobe.
Create a globe service
Now you need to publish a globe service using the globe document you created in the steps above. You can create the service in ArcCatalog or Manager. Be sure to set the service properties to reference the appropriate cache directory (It’s not necessary to append “GlobeCache” to the name this time.)
The globe service you create should be pooled, with 2 – 4 instances per server object container (SOC) that will be employed in the cache-building process. You may need to adjust this number depending on memory and CPU constraints you observe during the caching process.
Note about number of service instances: The map service that you created earlier only needs to have about ¼ the number of instances that your globe service has at this point. This is because you’ve cached the map service already, so requests for its tiles can be generally satisfied by the virtual cache directory, without making a request to the GIS server. The globe service is going to need a lot of instances while caching. After the cache is generated you can reduce the number of globe service instances.
Generate a globe cache
Once the globe service is started, you can begin generating the cache. You must do this step in ArcCatalog. In the Caching tab of the globe service properties, you’ll find two options for generating the cache. The Generate button creates a cache for the entire globe service, while the Update option only caches an extent that you provide.
As you set the parameters for the caching tools, you’ll need to select the levels of detail that the cache will be created at. Set the From level to “Globe – 1:10000000″ even if your service does not have global coverage. This will not generate an unreasonably large cache because tiles that are outside the service extent will just be skipped by the cache generation process.
When selecting the To level of detail, use the table below which associates each ArcGIS Online scale level with the appropriate To level of detail you should use for your globe cache. For example, if your map cache’s closest scale level is 72142.968… choose “City – 1:9765″ from the To Level of Detail dropdown in the Generate Globe Server Cache tool. Ignore the scale given in the dropdown (in this example 1:9765).
|Scale level||Globe cache “To” level of detail|
When you’ve set all of the parameters for the caching tools, click OK and let the cache generation process do its work. When it completes, you’ll have a set of globe tiles that look like the tiles in your 2D map cache.
Create a disconnected service (optional)
At this point, you could leave your globe service running and users would see the new cache tiles. However, your map service would always need to be running in order for your globe service to start correctly. To avoid this dependence on the map service, you can do the following to create a disconnected globe service:
- Stop the globe service you created previously.
- Open ArcGlobe and create a new globe document.
- Remove the default layers named Continents and World Image.
- Click the Add Data button.
- Browse to the folder on disk that contains the globe cache you just created. This involves browsing to your server cache directory, opening the GlobeCache folder, and finding the folder that represents your new globe cache. (Tip: The folder name will probably contain a representation of the URL of your 2D service, for example: ESRI_ServerLyrLocalGlobeCache_http___myserver_arcgis_services_world_mapserver_Layers_world.)
- Inside the globe cache’s folder, you’ll see a file named cache.lyr. Add cache.lyr to your map.
- Save the globe document and close ArcGlobe.
- Use ArcGIS Server to publish the globe document as a globe service. You’ve created a disconnected globe service.
(Note: Creating a 3D cache from a 2D cache using the method described above adds temporary local cache files that can add up to cumbersome sizes during long caching jobs. If this occurs you can use the operating system tools to schedule a task that deletes the local cache periodically, such as every 10 minutes. The local cache is typically stored in C:Documents and Settings<SOC account name>Local SettingsTempesrimapcache.)
Do you have a question about this technique or a tip of your own you’d like to share? If so, please leave a comment.