Category Archives: ArcGIS Online
03/25/10–Take a tour of the new features in ArcGIS online and ArcGIS Explorer Online – here’s a video of Jeremy Bartley’s presentation at the Developer Summit plenary.
You can also view the Business Partner Conference plenary video covering many of the same topics.
03/25/10–At the opening of the ESRI 2010 Business Partner Conference (BPC), Jack Dangermond introduced the vision for online GIS and ArcGIS.com (currently in internal beta, but soon to be released as a public beta). This video from the BPC plenary session showcases some of the recent changes to ArcGIS online basemaps, and introduces some exciting new applications that will be part of arcgis.com and the ArcGIS online experience.
Topographic Map (World_Topo_Map) was updated to include large-scale
international data for Canada and detailed local data for San Francisco.
The new data for Canada includes coverage from a scale of
~1:72,000 down to ~1:18,000. The data was provided by the Department of Natural Resources Canada
(NRCAN), Agriculture and Agri-Food Canada, and Tele Atlas (TANA).
A detailed city map for San Francisco, California, was added
to supplement the local data already available. This large-scale map was created
with data provided by the City of San Francisco from the San Francisco
Enterprise GIS Program.
For details on the new international and local coverage, view the list of Current World Topographic Map Contributors.
If you have previously used this service, you may need to clear your cache in
order to see the updates.
If you have feedback or comments about the updates, please post them to our
forum at http://forums.esri.com/forums.asp?c=188.
03/18/10–What is the best way to measure distance and area in maps that use the Web Mercator projection? Avoid the temptation to perform measurements of polylines and polygons
in Web Mercator. You should instead re-project user-submitted geometries
into a more appropriate coordinate system before you perform a
measurement. Learn more from the ArcGIS Server blog.
ArcGIS Explorer’s basemap gallery includes ready-to-use basemaps from ESRI and Bing, but you can also add your own. Here’s an overview of how to create and add your own custom basemaps to the basemap gallery.
There are two approaches we can consider when creating our own basemaps. One is that we’ll use one of the existing basemaps and add our own specific layers on top. The other approach is to build a completely new basemap from scratch. Let’s start with adding to an existing existing basemap, and for this example we’ll use one of the ArcGIS map services published by Jithen Singh from Eagle Technology Group, ESRI’s New Zealand distributor (and also serving the Cook Islands and Tokelau).
We’ll start with the default basemap and add a connection to the New Zealand map service that we want to use to create our own custom basemap. Using Add Content, then GIS Services, we connected to Jithen’s New Zealand map service. Here’s what our Table of Contents looks like now:
The World Imagery basemap is seen in other parts of the world, but in New Zealand the New Zealand basemap is what we see on top. Here we’ve zoomed in and used the Swipe tool to show how the New Zealand service is draped on top of the default World Imagery basemap. When we create the basemap, these two services (World Imagery and New Zealand) will be merged into a single basemap.
To save this as a new basemap, just click the ArcGIS Explorer button and choose Save As New Basemap.
We’re prompted to specify basemap options in the dialog show below. We’ve chosen the obvious ”New Zealand” as the name for our basemap. A thumbnail will be automatically captured from the current map extent, but you can create a new one and change it now or at any time later. The thumbnail is a 200px by 133px .png file.
Once we click Save the new basemap is created, and we see our new basemap under My Basemaps in the gallery.
Close the current map and open a new one, and now this new basemap can be used just like any other. Here we’re in 3D mode and have zoomed out, and you can clearly see the New Zealand map (light blue rectangle) displayed atop the World Imagery.
And in our Contents we’ll see the new combined service basemap.
In this approach we’ve leveraged the existing World Imagery basemap, including the elevation services that are part of that basemap, to create our custom New Zealand basemap by adding the New Zealand map service on top of it.
If we want to focus our basemap for use in New Zealand only, we can omit the World Imagery services (reducing our drawing overhead and optimizing performance) but we’ll still want the elevation services, or may want to add our own. So in this next iteration let’s change a few steps and author the basemap with only the New Zealand map plus elevation.
As before, we’ll open a new ArcGIS Explorer session but this time we’ll clear the basemap. Clear Basemap is found at the bottom of the Basemap Gallery.
After we clear the basemap we’ll be looking at a blank white map if we’re in 2D mode, or an empty wire mesh globe if we’re in 3D mode.
We’ll begin creating our new basemap by adding the elevation services. There are two places to find the needed elevation services. The easiest place to find them is in the ArcGIS Explorer group on ArcGIS Online. We’ve added the World Elevation Base as a layer that you can open directly in ArcGIS Explorer.
The other way to add these is to connect directly to the ArcGIS Online server (services.arcgis.online.com/arcgis/services) and look for the elevation services in the Elevation folder. You’ll want to use both services you find there.
Now we add our New Zealand map service as above. This is what our Contents looks like at this point:
Now we can save as a new basemap just like before. Looking at our basemap in 3D we see just the New Zealand map.
Note that when creating basemaps there may be other considerations. If you’re only authoring for 2D, you don’t need the elevation (but the world will be flat in 3D). You may also want to use your own elevation services if you have them available. We’ll cover these topics in more detail in future posts. For more information see the Create a Basemap Help topic.
03/04/10–ESRI recently published an Earthquake Response for Chile group on ArcGIS Online to assist in providing data and other resouces related to the recent earthquake. The content is being published by ESRI and other organizations in support of relief activities.
At the site, a variety of resources can be found, including applications that combine ESRI maps with other types of information, links to services with relevant information, and links to downloadable data and maps.
From the group landing page, click the Contents tab to view shared content. Click on a thumbnail to open the item, or click the title for more information.
Here we opened the detailed description for one of the shared items, a Web map that combines USGS earthquake data with ArcGIS Online basemaps.
Click to open the Web map. Here we used Identify to view additional information from the USGS about each earthquake in the area. The red dots represent quakes greater than 2.5 in magnitude.
By clicking Add More Layers:
We can find additional services to mashup in our application, enabling us to build upon existing maps.
Here we found another service published by the Pacific Disaster Center (PDC) and created a mashup of our original map with the PDC service, selected a new basemap, and reordered the layers in our contents.
For more information visit the ESRI Chile Earthquake Support site.
03/03/10–The ArcGIS Online sample servers (http://sampleserver1.arcgisonline.com and
http://sampleserver2.arcgisonline.com) will be offline during a two hour maintenance window on Saturday, March 6, 2010, between 9 a.m. and 11 a.m. PST. During this time, there may be some disruption of service accessing the ArcGIS Online sample mapping and geoprocessing services.
If you have feedback or comments, please post them to our forum at http://forums.esri.com/forums.asp?c=188.
02/18/10–Some of the evolving ArcGIS Online features, and a peek at forthcoming changes and enhancements, were highlighted at yesterday’s FedUC plenary session and demonstrated in the ESRI showcase and conference workshops.
The recently announced and newly updated World Imagery, World Streets, and World Topographic basemaps were featured throughout. The World Topographic map includes detailed content, such as, building footprints (in diverse worldwide locations from Geneva to Manhattan), elevation data, and even vegetation, providing coverage to 1:1,000 scale in major U.S. cities, such as, New York, Philadelphia, Portland, Pasadena, Washington, D.C., and a growing list of others.
This basemap represents a true “community basemap” built with contributions from throughout the GIS user community. Here’s an example from Washington, D.C., near the Library of Congress.
Also highlighted was the upcoming evolution of arcgisonline.com – maps.arcgis.com – which focuses on ways to provide ready-to-use maps and apps, and easy ways to share and create communities. Here’s the current map gallery – choose one and begin making your own map, or switch to the app gallery to see more examples.
A new Web mapping application is an integral part of the site, and allows users to browse ArcGIS Online, the Web, or specific ArcGIS Servers for content to mashup and share with others. New maps can also be shared via links. Here the streets basemap was chosen and mashed up with demographic data (daytime population) found on ArcGIS Online and live weather radar data discovered on the Web. Users can also connect directly to an ArcGIS Server.
Also shown was a preview of ArcGIS Explorer Online, a Silverlight-based rich internet client for working directly with ArcGIS Online content, and other resources found on the Web or at specific ArcGIS Servers.
ArcGIS Online is “built-in” to the ArcGIS user experience, and it’s inherently integrated into ArcGIS 10. Demonstrations showed how ArcMap users can find basemaps, discover additional layers to add to their maps, and modify and share data directly via ArcGIS Online. It’s a seamless and transparent part of the user experience.
More in upcoming posts, but the FedUC has provided the first glimpse at what’s ahead for ArcGIS Online and online GIS.
During yesterday’s ESRI Federal User Conference plenary and in a workshop this morning, the soon-to-be-released ArcGIS Explorer (build 1200) and ArcGIS Explorer Online were demonstrated. These new releases are forthcoming, and we’ll be taking a closer look at both in future posts, but here’s a few highlights as discussed at the FedUC.
The upcoming release of ArcGIS Explorer (build 1200) updates the currently available version with several significant new features. One of them is an updated basemap gallery, providing a variety of best-of-breed basemaps compiled with data from ESRI and major users (USGS, EPA, and local governments) and partners (such as i-Cubed, Tele Atlas, AND, and more). Microsoft Bing Maps for Enterprise,including aerials, aerials with labels, and streets, are now available for free, unlimited use, and require no additional licensing. The Bing maps are featured at the top of the gallery.
Also included are the recently updated World Imagery, World Streets, and World Topographic basemaps. The Streets and Topographic maps include detailed content, such as building footprints, elevation data, and even vegetation, providing coverage to 1:1000 scale in major US cities such as New York, Philadelphia, Washington, D.C., and others.
Users can also add their own basemaps to the gallery using new tools that make it easy to manage and organize custom basemaps along with the built-in basemaps.
Another significant new feature is the Analysis Gallery, providing an easy way to connect to GIS services without having to write any code or manage configurations. The Analysis Gallery makes it very easy to extend Explorer’s capabilities with geoprocessing services and models authored using ArcGIS Desktop, and served using ArcGIS Server.
Sample geoprocessing services from ESRI are available, so you can try these out and download the geoprocessing tools to host from your own server.
The Analysis Gallery can also be used to add and manage add-ins, including the large selection available on the ArcGIS Explorer Labs group on ArcGIS Online.
Other enhancements and improvements will be detailed in future posts.
ArcGIS Explorer Online is a rich internet client that works directly with ArcGIS Online and other server and file-based content (such as GPS files and text files), and features many of the same capabilities (like presentations) and look and feel of the desktop version. It’s built using ESRI’s Microsoft Silverlight API.
ArcGIS Explorer Online offers the same Bing and ESRI basemaps to choose from. It also makes it easy to create mashups by searching ArcGIS Online, the Web, or specific ArcGIS Servers, and share your maps with others using ArcGIS Online or by simply sending a link to your saved map.
More in upcoming posts, but the FedUC has provided the first glimpse at what we think will be very exciting releases of Explorer and Explorer Online.
02/09/10–The World Topographic Map (World_Topo_Map) was updated to include additional detailed local data in the United States.
Detailed city maps for New York, New York, and Washington, D.C, were added to supplement those already available. These large-scale maps were created with data provided by the New York City Data Mine and the District of Columbia Geographic Information System (DCGIS).
This update also includes a detailed map of Yosemite National Park in California from data provided by the Yosemite National Park Resource Management Division of the U.S. National Park Service (NPS).
For details on the local area coverage, view the list of Current ArcGIS Online World Topographic Map Contributors.
If you have previously used this service, you may need to clear your cache in order to see the updates. If you have feedback or comments about the updates, please post them to our forum at http://forums.esri.com/forums.asp?c=188.