Tag Archives: ArcGIS Online

Web Maps Must Be Updated if Using Styles that Adjust Symbol Size Automatically Based on Map Scale

This blog pertains to web maps and layer items that have both of these characteristics:

  • Web maps and layers authored with ArcGIS Online prior to the June 2016 update.
  • Contains polygon layers that are styled using Smart Mapping tools to adjust symbol size and/or outline width automatically based on scale

Smart Mapping tools allow you to select between various methods for using attribute values to drive the size of marker symbols when mapping data associated with polygons. You can specify a concrete size range for the symbols, or use automatic sizing so that they are optimized for the initial map zoom level and will automatically adjust so they look better across more zoom levels. We discovered an issue when using the automatic sizing option where the size of each symbol was being incorrectly represented in the web map with pixel values rather than point values (points are the correct unit of measure according to the web map specification). The ArcGIS API for JavaScript was also using pixel values. The result was inconsistent sizing between ArcGIS clients.

You also have the ability to automatically adjust the width of the outline of the polygon based on the current scale. Automatic sizing of polygon outline widths were also being represented using pixels rather than points.

Starting with the June update of ArcGIS Online, sizing values will be correctly represented using points which will enable marker sizing in web maps to be displayed consistently in all ArcGIS clients. The ArcGIS API 3.17 for JavaScript was also updated to use point values rather than pixels. While this update resolves the inconsistencies with auto sizing values going forward, it also means that web maps that were created before the June 2016 update of Online will have marker symbols and polygon outline widths that appear 1.3 times larger than the initial sizes you saw when originally authoring your map.

Example map with automatic sizing before the update            

Example map with automatic sizing after the update

What can you do if your web map was affected by this update?

If you created a web map or layer item in Online prior to the June update with layer styles that take advantage of automatic sizing based on scale, we recommend that you reauthor your web map. This process will resave your web map with the correct sizing values for consistent display in all ArcGIS clients. Here are the steps to reauthor your web map:

  1. Open your web map or layer item
  2. Click on “Change Style” in the layer menu for the polygon layer(s) that use automatic sizing of symbols. Note: You might want to write down the options you have selected so that you can easily reselect them in step 4.
  3. Select a different style for your symbols than you originally had selected and click “Done.”
  4. Click “Change Style” again on the same layer and reselect the original styling options you had, and click “Done.” Any options that were configured within the original style must be reconfigured.
  5. Save your web map or layer item. Your web map will now have size represented using point values.

For information on changing the style of your web map or layer item, see this help topic.

Note: this issue also occurs in web maps and layers that were created in Portal for ArcGIS and will be addressed in Portal for ArcGIS version 10.5. This article will be updated once a solution is available.

Julie Powell
Technical Product Manager, ArcGIS API for JavaScript

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Google Chrome 51 Issues when Logging in to Portal for ArcGIS, ArcGIS Online, or Custom Apps

Update, 2 June 2016: Google Chrome 51.0.2704.79 was just released; it fixes the change that caused a blank screen for ArcGIS Online, Portal for ArcGIS, and applications built with the ArcGIS API for JavaScript. If you are affected by this, please click the Customize and control Google Chrome button and navigate to “Help > About Google Chrome” to force an update check and upgrade to this latest patch level.

The previous version was 51.0.2704.63, and the fixed version is 51.0.2704.79.

Update, 27 May 2016: KB 13156 has been published on the Support website to provide additional information about this issue.

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Google released an update to Google Chrome (version 51), which was pushed out to the public on Wednesday, May 25th. Unfortunately, this update included a change that impacts anyone using Google Chrome to access ArcGIS Online or Portal for ArcGIS versions 10.3, 10.3.1, 10.4, or 10.4.1.

This change impacts many apps built on the ArcGIS API for Javascript (versions 3.8 – 3.16), several subsets of custom apps built by users, partners, and Esri Professional Services (for example, any app that uses the feature table or an analysis widget), and, most notably, the “home app” in ArcGIS Online and Portal for ArcGIS.

You may be seeing a screen similar to this after logging in: a blank screen with few or no elements.

What you can do:

If you are using Google Chrome to access ArcGIS Online, the above listed Portal for ArcGIS versions, or apps built with the above-listed versions of the ArcGIS API for JavaScript, please turn off auto-update in your Chrome browser now. If Chrome was updated, you will need to temporarily use another browser (such as Internet Explorer or Mozilla Firefox) until patches have been released.

What Esri is doing:

  • The ArcGIS Online team is preparing fixes that will go live this evening.
  • We are still working on a solution for Portal for ArcGIS.
  • Developers using the hosted version of the JavaScript API are unaffected, as it has already been patched.
  • We are working on a solution for JavaScript API developers that use either a custom build of the API or use it locally.

We will provide updates at the top of this blog post regarding Portal for ArcGIS and ArcGIS API for JavaScript as soon as we have more information. A technical article has been released for this issue, KB 13156, which provides some additional detail about this problem.

If you have run into any problems as a result of this bug that impact your workflows, please contact Esri Support Services at 1-888-377-4575.


Gregory L. – Online Support Resources

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Tips and Tricks for Disconnected Editing with Collector for ArcGIS

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Interested in deploying a person or crew of workers to edit your authoritative geographic data in the field without needing a connection to the internet? We are too! Collector for ArcGIS is the perfect client for you if your mobile … Continue reading

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Release of the Mid-Year 2015 Update to the Deprecated Features for ArcGIS

Esri logo

This blog post provides updated information regarding deprecated features of ArcGIS 10.3.1 and the upcoming ArcGIS 10.4 release. ArcGIS 10.3.1 was released in May 2015.

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Supporting the First Esri Intern Hackathon

On the weekend of August 1st, the Esri summer interns came together to participate in a hackathon hosted in the Esri café. The weekend was designed to encourage innovation through the rapid creation of applications; the event was extremely successful. One of most interesting aspects of the hackathon was watching the diversity within each team harmonize to improve the overall quality of the final products. Each team included at least one developer to write the code and several other members from Marketing, Support Services, Professional Services, and other Esri departments to help with creative design, the use of GIS, and the delivery of the final presentation. Continue reading

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The Secret Way to Create an Empty Feature Service to Use with ArcGIS Online

Edit empty feature service from developers.arcgis.com in ArcGIS Online

Have you ever wanted to create an empty feature service to use in ArcGIS Online, and found yourself stuck with no easy way to get this done? If you’re asking why in the world anybody would want to do this, … Continue reading

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Announcing New ArcGIS Pro Licensing at Beta 5

Participating in the ArcGIS Pro Beta program is just as easy at Beta 5 as in previous beta releases. However, there are a few things users and their ArcGIS Online administrators need to know heading into this release. Continue reading

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The Heartbleed Bug – What does it mean for you?

Heartbleed

As you may or may not be aware, a recent security vulnerability was unveiled for servers using the OpenSSL cryptographic library that affects many different products and software worldwide. This vulnerability has been codenamed ‘The Heartbleed Bug’, and potentially allows attackers to read … Continue reading

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Push Your Geotrigger Service Questions to Support

DCarroll-geotrigger

We are pleased to announce support for Esri’s new Geotrigger Service and have a great team ready to help developers push out useful information to people based on their locations. With more ease than ever, messages can be pushed out to mobile devices … Continue reading

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