Monthly Archives: October 2011

ArcGIS Online World Topographic Map updates for October


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


Albertov Campus, Prague, Czech Republic, at 2K
Image of Albertov Campus, Prague, Czech Republic, at 2K

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Managing layer visibility and selections

Managing layer visibility and selections with the table of contents’ List By Visibility mode

The table of contents in ArcGIS 10 has several ways of listing the layers in the map: by drawing order, source location of the data, whether layers are visible, and whether layers are selectable. A particular list type may be more useful than others depending on the current mapping task. For example, List By Drawing Order is best at setting which layers draw on top of others and List By Source works well to help repair broken data links for layers from different workspaces. In an earlier post, I focused on the table of contents’ List By Selectable mode when I wrote about refining the selected features while editing. In this post, I am going to show how I can use List By Visibility to manage layer visibility and selections.

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Design principles for cartography

By Aileen Buckley, Mapping Center Lead

Design Principles Thumb

Cartographers apply many design principles when compiling their maps and constructing page layouts. Five of the main design principles are legibility, visual contrast, figure-ground, hierarchical organization, and balance. Together these form a system for seeing and understanding the relative importance of the content in the map and on the page. Without these, map-based communication will fail. Together visual contrast and legibility provide the basis for seeing the contents on the map. Figure-ground, hierarchical organization, and balance lead the map reader through the contents to determine the importance of things and ultimately find patterns.

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Posted in Mapping, Migrate | Tagged , , , | 8 Comments

Blog Series – Importing and Using Your Own Data in Business Analyst – (3 of 6) Creating a Custom Report with Custom Data (Part B)

by Jeff Hincy

This is Part B of the third entry of a six part product team blog series that will walk you through importing your custom data and exposing it in multiple aspects of Business Analyst – such as maps, reports, analysis, and applications. The upcoming entries will highlight some great tips and tricks for all things Business Analyst customization. Check out the previous post here.

In Part A I focused on building a report utilizing the custom data created in a previous blog with Business Analyst Desktop. In Part B I will show you how to install the report report and run it.

Now that we have a custom report built the next step is to Continue reading

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Community Analyst Success Stories

by Donna Buhr

Have you had an opportunity to readany of the Community Analyst Success Stories and the innovative ways that users are finding to analyze data and create valuable insight into their communities? I like the user story, “Transparent Communication Keeps Contributions Coming”, telling how Direct Relief International (DRI), a nonprofit organization located in Santa Barbara, California, is implementing Community Analyst as a cost-efficient solution to help target potential donors.

Andrew Schroeder, Director of Research and Analysis for DRI, said, “As a lean nonprofit, we can’t spend a lot of money on a market research firm to help us find donors, so we need much better tools and intelligence internal to our organizations.”Schroeder explains, “By understanding our existing donors and finding more like them, we can attract a substantial and sustainable significant donor base. We’ll be more able to think strategically about how to raise resources.” It is really an interesting story, so you should definitely read “the rest of the story”.

Community Analyst provides you with everything you need in one easy to use application to make your own success story. Here is a link to read the full story on DRI, and how others are using Community Analyst to solve their own unique problems.Esri Community Analyst | Success Stories

We never get tired of hearing these user stories, so please let us know your Community Analyst success story.

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Blog Series – Importing and Using Your Own Data in Business Analyst – (3 of 6) Creating a Custom Report with Custom Data (Part A)

by Jeff Hincy

This is the third entry of a six part product team blog series that will walk you through importing your custom data and exposing it in multiple aspects of Business Analyst – such as maps, reports, analysis, and applications.The upcoming entries will highlight some great tips and tricks for all things Business Analyst customization. Check out the previous post here.

In this entry I will focus on building a report utilizing the custom data created in the first blog with Business Analyst desktop.

We have seen how to take custom data and transform it into a Business Analyst Datasource (BDS) and how to take that data and analyze it using the tools in Business Analyst Desktop to better understand and visualize the data. Now I am going to show you Continue reading

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Overviews and pyramids: Part 1 of 2, What are they and why do I need them?

This is part 1 in a 2-part blog. Part 1 provides an overview of pyramids and overviews. Part 2 will provide you with some guidance on generating them when creating a mosaic dataset.

Basically—overviews are not pyramids and pyramids are not overviews.  But pyramids generated by ArcGIS have an .ovr extension (short for overview)…Wait, did I just write that?

Yes, the storage format for a pyramid is an .ovr file. But please don’t confuse this with overviews. Fortunately, overviews are organized in a folder named *.overviews. Both are similar but pyramids are created for raster datasets and overviews are created for mosaic datasets.




Lower resolution (downsampled) images of the original data.


Improve display speed and performance.

Created for

Raster datasets

Mosaic datasets


Writes .ovr files—with a few exceptions.

Writes as .tif files.

Reads pyramids stored externally as *.ovr or *.rrd or internally (e.g. MrSID)


In a single file that generally resides next to the source raster dataset and using the same name.

By default, in a folder next to the geodatabase with a *.overviews extension, or internally for ArcSDE.

Storage location is customizable.

Storage size

2 to 10% (compared to original raster datasets)

Downsampling factor


3 (default)


  • Each pyramid level covers the entire raster dataset.

  • You can specify the number of levels to generate.

  • Can cover part of or all of a mosaic dataset.

  • Each level can consist of one or more images.

Options when building

  • Number of levels to create

  • Resampling method

  • Compression method & quality

  • Number of levels to create

  • Tile size

  • Base pixel size

  • Resampling method

  • Compression method and quality

  • Output location

  • Extent Sampling factor

Why are you generating them?

Pyramids aren’t mandatory—but without them, the display speed of your raster dataset can be prohibitively slow, especially if the datasets are very large.

Overviews aren’t mandatory—but they are highly recommended. You do not have to create them or you can generate them in only particular parts of the mosaic dataset, such as a highly visited part of the imagery. However, if you don’t create them you may not see any imagery (you may see a wireframe instead or gray images), since there is a limit to the number of rasters that will be processed at one time (which you can change). Without them, the mosaic dataset may display slowly because of all the processing.

How to create pyramids

If a raster dataset doesn’t have pyramids, then you will often be prompted to create them when you display the data in an ArcGIS application, such as ArcMap. But it’s better to create them before you use the data. Pyramids can be created using geoprocessing tools. There are a few tool choices, since it depends on whether you have one or many datasets to process. To learn about these, see Building pyramids using geoprocessing tools. You can change the properties of the pyramids, such as the resampling method and compression via the geoprocessing environments.

Learn more about pyramids

How to create overviews

To create overviews, first they are defined, then generated. When they are defined, the application analyzes the mosaic dataset and using the parameters set for the overviews it defines how many are needed, at what levels, and where. Then they are added as items in the mosaic dataset which appear as new rows in the attribute table. At this point, only the rows have been created to identify the properties and number of the overviews. Next, the overview files are generated. Both defining and generating can be done with one tool—Build Overviews. However, if you need to modify any properties, such as defining a new output location or tile size, then you must run Define Overvews first (to define the properties and add the items to the attribute table), then run Build Overviews to generate the overview files.

When you do generate them, the mosaic dataset keeps track of any changes made to it, such as updating an image, adding or removing images, or altering the footprints. By running the Build Overviews tool or Synchronize Mosaic Dataset tool, with the appropriate options, the overviews will be updated.

Learn more about overviews

Associated blogs

Submitted by: Melanie Harlow

Posted in Imagery, Services | Tagged , , , , , , , , , , , | 1 Comment

ArcGIS API for iOS v2.1 now available

We are happy to announce that v2.1 of ArcGIS API for iOS (henceforth referred to as ArcGIS Runtime SDK for iOS) is now available.

This release builds on the support for iOS 5 provided by v2.0.1 and includes additional functionality such as -

  • Ability to view map content using ArcGIS 10.1 tile packages (*.tpk files) even when the device is offline.
  • New GPS auto panning modes for vehicle navigation and compass navigation
  • Flexible callout positioning
  • Ability to rotate the map
  • ..and much more

You can refer to the documentation for more information about what’s new at v2.1 and how to migrate your existing applications.

Contributed by Divesh Goyal of the ArcGIS for iOS Development Team

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ArcGIS for Android v1.0 Released

We are proud to announce the initial release of ArcGIS on the Android platform.  You can install it from the Android Market now.  More information provided by the ArcGIS Mobile Blog

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ArcGIS for Android v1.0 Released!

The Mobile Team is proud to announce the initial release of ArcGIS on the Android platform!! You can download it from the Android Market now!

Use the ArcGIS application to connect to ArcGIS Online or your on-premise ArcGIS Server and extend the reach of GIS to Android devices within your organization.

Using the application you can:

  • Browse ArcGIS Online or your on-premise ArcGIS Server to find maps
  • Display and navigate map content
  • Collect GIS data using the map or using GPS
  • Tap on the map and discover rich GIS content using popups
  • Find addresses and places
  • Identify your location on the map or tap on the map to get location details
  • Measure lines and areas
  • Share maps with others

For more details please visit the ArcGIS for Android Resource Center.

Mobile Team 

IMPORTANT NOTICE: Version 1.0 of the ArcGIS for Android application has been designed specifically for Android Phones equipped with ARMv7 or higher processors running OS version 2.2 or higher. If you cannot find the ArcGIS application when searching the Marketplace then it is more than likely your device does not meet the minimum specifications of ARMv7 processor and/or Android OS version 2.2 or higher.

The following is a list of devices that are running ARMv7 (note this list may be incomplete and Esri has not yet tested with all of these devices):

  • Acer
    Iconia Tab A500
  • Acer
    Liquid, Liquid A1
  • Advent
    Vega (P10AN01)
  • Archos
    101 Internet Tablet
  • Barnes&Noble
    Nook Color (root required)
  • Dell
    Streak, Streak 7
  • HTC
  • HTC
    Desire S
  • HTC
    Desire HD (AT&T Inspire 4G)
  • HTC
    Droid Incredible/HTC Droid Incredible 2
  • HTC
    EVO 4G, EVO Shift 4G
  • HTC
  • HTC
    Glacier (T-Mobile myTouch 4G)
  • HTC
    Incredible S
  • HTC
    Inspire 4G
  • HTC
    Nexus One
  • HTC
  • HTC
    Thunderbolt 4G
  • Huawei
    Ideos S7
  • LG
    Optimus 2X
  • LG
    Optimus Black (P970)
  • LG
    Optimus Z
  • Motorola
    Atrix 4G
  • Motorola
  • Motorola
    Cliq 2
  • Motorola
  • Motorola
    Droid 2, Droid 2 Global
  • Motorola
    Droid Pro (Motorola PRO)
  • Motorola
    Droid X
  • Motorola
  • POV
    Mobii Tegra Tablet
  • Samsung
    Continuum (i400)
  • Samsung
    Droid Charge
  • Samsung
    Galaxy S (i9000, Captivate, Fascinate, Vibrant, Epic 4G)
  • Samsung
    Galaxy S 4G
  • Samsung
    Galaxy S II
  • Samsung
    Galaxy Tab, Galaxy Tab 10.1
  • Samsung
    Infuse 4G
  • Samsung
    Nexus S
  • Samsung
    T-Mobile Sidekick 4G
  • Samsung
    4G LTE SCH-i520/Inspiration/Droid Charge/Stealth V
  • Sharp
    Galapagos 003SH, 005SH
  • Sony
    Ericsson Xperia Arc
  • Sony
    Ericsson Xperia Play
  • Viewsonic

If your device is not on the above list, we recommend that you research the device itself for details on the processor. The following is a list of devices known to be running ARMv6 and as such are not compatible with the ArcGIS application:

  • Asus
    Garmin nuvifone A50 (T-Mobile Garminfone)
  • Augen
    GENTouch 78 Tablet
  • Coby
    Kyros Internet Tablet (MID7015)
  • Geeksphone
    One, Geeksphone Zero
  • HTC
  • HTC
  • HTC
    Dream (T-Mobile G1, Android Dev Phone 1)
  • HTC
    Droid Eris
  • HTC
    Espresso (T-Mobile myTouch 3G Slide)
  • HTC
    Hero (T-Mobile G2 Touch)
  • HTC
  • HTC
    Magic (T-Mobile myTouch 3G, T-Mobile G1 Touch)
  • HTC
  • HTC
  • HTC
  • Huawei
  • Huawei
    Ideos U8150-B (T-Mobile Comet)
  • Huawei
    U8110 (T-Mobile Pulse Mini)
  • Huawei
  • LG
    Ally (Apex) (LG VS740)
  • LG
    GW620 (Eve, InTouch Max, LinkMe)
  • LG
    Optimus, Optimus M, Optimus T, Optimus S, Optimus V
  • LG
  • MAG
    iMiTO iM7
  • MAG
    iMiTO iM7S
  • Motorola
  • Motorola
  • Motorola
    Cliq (MB200)
  • Motorola
  • Motorola
  • Motorola
  • Motorola
    Spice XT300
  • Motorola
    Quench XT5 XT502
  • Pandigital
  • Samsung
    Behold, Behold 2
  • Samsung
    GT-S5570 Galaxy Mini
  • Samsung
    i5500 Galaxy 5 (Corby)
  • Samsung
    i5700 Galaxy Portal (Spica)
  • Samsung
    i5800 Galaxy 3
  • Samsung
    i7500 Galaxy
  • Samsung
  • Samsung
    M900 Moment
  • Samsung
    S5830 Galaxy Ace
  • Samsung
  • Sanyo
    ZIO M6000
  • Sony
    Ericsson Xperia X8
  • Sony
    Ericsson Xperia X10 Mini
  • Sony
    Ericsson Xperia X10 Mini Pro
  • Superpad
    10.2″ Tablet PC
  • Viewsonic
    ViewPad 7 Tablet
  • Velocity
    Micro T103 Cruz tablet
  • Vodafone
  • ZTE
    Blade / San Francisco
  • ZTE
    Light / V9

We are investigating the possibility of supporting devices running ARMv6 processors but have not yet determined if this is feasible.

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