Monthly Archives: December 2011

ArcGIS Online World Topographic Map end of year updates

The ArcGIS Online World Topographic Map (World_Topo_Map) was recently updated with several more contributions from the user community.

Blank Park Zoo and Golf Course in Des Moines, Iowa, at 1:2K
Blank Park Zoo and Golf Course in Des Moines, Iowa, at 1:2K
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Changes to ArcGIS Desktop basemaps

The National Geographic basemap has now been added to the File > Add Data > Add Basemap dialog in ArcGIS Desktop 10. It has also been added into the list of basemaps that appears if you choose the File > Add Data From ArcGIS Online command in ArcGIS Desktop 9.3.1.

 

In the Add Basemap dialog, the Shaded Relief basemap entry has been removed in order to make space for the National Geographic basemap and keep the number of basemaps to 12. However, we have updated the Terrain basemap so that it includes the Shaded Relief service. So if you want to add shaded relief to your map, choose the Terrain basemap, and then in the Table Of Contents you can choose between the terrain service and the shaded relief service, whichever looks best for your map. The layer also includes reference overlays that you can turn on.

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Managing National Wireless Coverage Data With Mosaic Datasets – Part 1

National level datasets for a wireless carrier often encompass many regional extracts of data. The number of regions can be as few as 5 or 6 to possibly a hundred depending on how the carrier manages it national footprint. The regional extracts usually come in the form of a “best server” array that aggregates the cell tower coverage for that region. One problem carriers are faced with is how to take these individual regional rasters and create a seamless view at the national level that can be served up and shared with the general public or others within the organization?

This is not as simple as it sounds since wireless coverage does not honor the boundaries of regions and bleeds into other regions. We therefore have the possibility for multiple areas of overlapping coverage. The seamless national view needs to maintain the “best server” properties for any given location and only show the best level of coverage for any location. So how do we create this seamless view that merges the properties in the correct manner for these areas of overlap?

Luckily we have a data management solution in the form of Mosaic datasets Continue reading

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Tips on exposing your published map services on ArcGIS Online

By Rupert Essinger, ArcGIS Development Team

Publishing Your Services thumbnail

If you’ve published or are planning to publish web map services using ArcGIS, here are some things you can do that will help people successfully find and use your services through ArcGIS Online.

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Posted in Mapping | 2 Comments

Using scale visibility ranges for symbology in ArcGIS Online web maps

By Kenneth Field, Esri Research Cartographer

Using scale visibility ranges to set symbology in ArcGIS online web maps thumbnail

When creating a web map using ArcGIS.com Map Viewer, the basic approach involves adding operational overlays to a basemap.  As you add layers, they are set by default to be visible at all zoom scales. This often leads to problems at smaller scales as symbols overlap which can very easily render your map illegible and meaningless. By contrast, when you create a static map at a single scale you would consider the available map space and so design and position symbols to avoid these problems. It is useful to keep this principle in mind when designing web maps in a multi-scale environment since not all layers should necessarily be visible at all scales.  This blog entry shows you how you can use the visibility range settings in ArcGIS.com Map Viewer so that operational overlays are only visible at certain scales.  By taking a thoughtful approach to designing the content for your layers and setting their visibility range you can optimize the viewing experience for your map reader rather than bombard them with a mashup of tangled symbols. Continue reading

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ArcGIS – CityEngine Urban Planning videos

For your viewing pleasure: 4 videos to accompany the CityEngine: Philadelphia example we published a couple of weeks ago. The videos show the full ArcGIS – CityEngine round trip:

Note: you need to download the latest CityEngine Urban Planning Example for updated rules!

Have a good Xmas break and see you back in 2012!

Gert
Esri R&D Center Zürich

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ArcGIS for Local Government – The Road Ahead in 2012

As the year winds down, we wanted to take a minute to thank everyone for the participation and feedback this year. It’s been really exciting to see the user community embrace the maps and apps on the ArcGIS for Local Government resource center and provide feedback that will ultimately make these ArcGIS maps and apps better for everyone using them. The team really enjoys the ongoing dialog with our local government users and looks forward to working with each and every one of you in the near future.

In 2012, we’re excited to incorporate the functionality emerging in ArcGIS 10.1 and ArcGIS Online, along with what we learned in 2011 from you, into the ArcGIS for Local Government solution. And we’ve got some plans we’d like to share with you for 2012 that we hope will make your adoption and use of ArcGIS simpler and more successful.http://blogs.esri.com/esri/arcgis/wp-includes/js/tinymce/plugins/wordpress/img/trans.gif

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Update to Campus Maps and Apps

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ArcGIS Online World Topographic Map updated with user contributions

The ArcGIS Online World Topographic Map (World_Topo_Map) was recently updated with several more contributions from the user community.

Dedham, Massachusetts, at 1:9K

Dedham, Massachusetts, at 1:9K
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Share your source raster within an image service – Part 1

Image services are a great way to allow others to use your service layers within their GIS projects. Did you know you can actually allow users to download your source files? By default, this option already enabled when you publish a mosaic dataset. Continue reading

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