Tag Archives: ArcGIS.com
Updating ArcGIS.com Hosted Feature Services with Python
More organizations are moving towards using ArcGIS.com hosted feature services to serve data. One common task that has become a popular question of late is, “How do I automatically update the data within this hosted service?” For example, your organization may want to push nightly updates to keep synchronized with the daily changes made by your Desktop users. One of the easiest ways this can be done as this blog describes, is by overwriting the feature service completely with an updated one.
The following Python script demonstrates how to:
- Turn a map document into a sddraft.
- Modify the XML inside with the appropriate settings.
- Analyze the draft for errors.
- Stage the sddraft into a .sd (service definition) file.
- Upload the service to ArcGIS.com. Note that this code shares the feature service with everyone on ArcGIS.com.
Consuming WebMaps from ArcGIS.com with ArcGIS Runtime for iOS
ArcGIS Online brings the concept of WebMaps, a ready to use intelligent map that includes a way to “mashup” of all your data. WebMaps are highly configurable for any user wanting to tell a story or share their geographic information. … Continue reading
Telling thematic stories in ArcGIS Online
By Kenneth Field (Research Cartographer), Damien Demaj (ArcGIS Online Cartography) and Linda Beale (Geoprocessing)
At the 2012 Esri Education GIS Conference and the 2012 Esri International User Conference, we demonstrated how you can build informative thematic maps using the ArcGIS System. The purpose of the sessions was to take relatively simple datasets and create a range of alternative thematic map types that told a story in different ways. This demonstrated the techniques for creating the maps using ArcGIS for Desktop as our authoring environment and ArcGIS Online as our publishing mechanism. As the XXX Olympiad is currently taking place in London, UK we illustrated how alternative maps can be made to tell different stories of the relative success of nations over the period since the first Olympic games in 1896. Continue reading
Developer Summit Europe
To build on the success of recent Developer Summit in California, we’ve decided to take the event on the road. Esri will be hosting 3 Dev Summits in Europe this September.
I hope developers from all over Europe and the world will come together in Rotterdam, Berlin or London (all 3 if you want). The technical sessions will focus on becoming more effective at building web, mobile and desktop applications. Senior Esri development staff will be presenting so you’ll get a chance to see what’s coming next. Registration information will be available soon but mark your calendar now and plan to join us in Europe.
New versions of Runtime SDKs for WP, iOS and Android released!
New versions of the ArcGIS Runtime SDKs for Windows Phone, iOS and Android have been rolled out today! The recent release of the ArcGIS applications were built using these SDKs, so you know they are tried and tested.
ArcGIS 10.1 support
They all have support for lots of ArcGIS 10.1 goodies, including editor tracking, ownership based access control, fine grained editing capabilities and lots more.
Using a binning technique for point-based multiscale web maps
By Kenneth Field, Esri Research Cartographer
Presenting point-based data on a web map is challenging because of the problem of overlapping symbology, particularly as you zoom out of the map to view data at smaller scales. So-called push-pin web maps are very easy to make with ArcGIS Online but making the map make visual sense at the smaller scales requires a little more work. In this blog entry we illustrate how data binning can be used to aggregate large point-based datasets into hexagonal polygons to overcome the problem and improve the web map across all scales.
Well count aggregation web map
By Mark Smithgall, Esri Cartographer
This well count aggregation web map shows how a complex data source, such as gas wells in a producing field, can be aggregated and portrayed in an easy-to-understand manner. This was designed as an ArcGIS Online web map to show the aggregation number as a proportional symbol of wells per administrative area. In this case, three levels of aggregation were used based on the most logical administrative areas: parishes, Public Land Survey System (PLSS) townships, and PLSS sections. Continue reading
Using alternative thematic basemaps with ArcGIS.com map viewer
By Kenneth Field, Esri Research Cartographer
The default projection for all basemaps in ArcGIS Online is Web Mercator. In a previous blog entry, Bern Szukalski explained using custom basemaps as an alternative to Web Mercator and the ArcGIS Resource Center provides information on how to build online basemaps. Mercator projections are very useful for certain mapping tasks but not so good for others because they dramatically exaggerate northern and southern latitudes. This exaggeration deforms the shape and size of areas. Whilst Web Mercator has become a widely adopted web mapping standard (because of the tiling system being well suited to this spatial reference), there are situations where you may want a different map projection. In thematic mapping, for instance, you might want to preserve areas or shapes or even use a more pleasing view of the world than Web Mercator provides at small scales. This blog entry describes how you can switch out the default basemap for your own, simplified thematic basemap.
An intelligent map checklist
When you create an intelligent web map or map service, you are sharing something that you hope will stand on its own and be useful to others. How can you deliver a map that is both attractive and useful for … Continue reading
ArcGIS Online Maps Through Community Analyst – The Good Stuff
You might have noticed the new Select tool in the map tool palette. What in the world is this? How is it going to be useful to me? What else can I do after bringing in a web map from ArcGIS Online? Continue reading to find out more…
As discussed in a previous blog post, you can bring in the maps created in ArcGIS Online into Community Analyst and make the maps more meaningful. With the help of this new Select tool, you can make it even more powerful. Here’s how… Continue reading
