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Friday, November 20, 2009 1:42 PM

ArcGIS Online moving to Google / Bing tiling scheme: What does this mean for you?

Earlier this year ESRI announced that ArcGIS Online services will be migrating to the Mercator-based tiling scheme used by Google Maps and Bing Maps. The ArcGIS Online engineers have been busy caching tiles for months in anticipation of this switch, which
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Thursday, September 03, 2009 5:00 PM

Achieving smooth transitions with adjacent services

In your ArcGIS Server application you might have reason to work with adjacent map and image services. This is most often occurs when you want to display your authoritative data for a small area while using a public service (ArcGIS Online, Bing Maps, or
Posted by sterlingdq | 3 Comments
Friday, May 01, 2009 9:50 AM

Questions and answers about ArcGIS Server 9.3.1 map services

In a previous post Design patterns for Web maps , we talked about strategies and challenges for displaying different types of map layers on the Web for the best performance. Caching is the fastest way to serve Web maps, but requires an initial time investment
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Thursday, March 05, 2009 4:19 PM

Extending tiled layers in the ArcGIS API for Flex

The ArcGIS API for Flex supports access to layer types not included with the API. Depending on what you are trying to connect to (or do), you might want to extend TiledMapServiceLayer , DynamicMapServiceLayer or Layer . Extend DynamicMapServiceLayer if
Posted by sterlingdq | 5 Comments
Thursday, February 05, 2009 9:38 AM

Tips for caching by feature class

The ArcGIS Server 9.3 map caching tools allow you to create tiles based on the boundaries of a feature class. Caching by feature class allows you to create tiles only in the places where you need them, avoiding empty or uninteresting areas. For example,
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Wednesday, December 03, 2008 9:35 AM

Map caching case study: New Zealand topo maps

I have the New Zealand 1:50,000 Topographic Database and I wanted to serve out several layers from that database using ArcGIS Server. The intention was that this service be used as a basemap for mapping projects as well as a test for and demonstration
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Friday, October 17, 2008 2:48 PM

Tips for choosing a cache image format

We often receive questions about which image format is most appropriate for ArcGIS Server map caches. In response we recently added the following information to the topic Choosing Cache Properties in the ArcGIS Server 9.3 Web Help. Your choice of cache
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Thursday, October 02, 2008 1:01 PM

ArcGIS Server 9.3 Nationwide Seminar Series occurring now

ESRI has been working on two, half-day ArcGIS Server 9.3 Seminars . These seminars started September 23rd and are taking place through November within the U.S. This is a great opportunity to see how to implement ArcGIS Server to its fullest capabilities.
Posted by sterlingdq | 2 Comments
Thursday, September 18, 2008 1:04 PM

Strategies for on-demand caching

ArcGIS Server 9.3 introduces the option to create map cache tiles "on demand" as they are visited by users. The first user to navigate to an uncached area must wait while the corresponding tiles are drawn by the server. The tiles are then added to the
Posted by sterlingdq | 0 Comments
Tuesday, August 26, 2008 11:53 AM

Live training seminar to demonstrate map caching strategies

During the past several weeks I've been working with Danielle Hopkins of ESRI Educational Services to prepare a live training seminar on ArcGIS Server map caching. The seminar is free and will be broadcast three times this Thursday, August 28 or you can
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Tuesday, August 05, 2008 10:52 AM

Design patterns for Web maps

Web maps often contain a base map, which provides a geographic frame of reference, and operational (or thematic) layers, which show a focused item of interest on top of the base map. A familiar example might be an online mapping service that provides
Posted by sterlingdq | 1 Comments
Tuesday, May 27, 2008 2:04 PM

Building a partial map cache at large scales

We’re occasionally asked how to build a partial map cache at large scale levels, while having a full cache at smaller scales. This is useful if you have highly detailed data in certain areas of your map. For example, you might have medium resolution data
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Thursday, January 31, 2008 12:47 PM

Deconstructing the map cache tiling scheme (Part II): Working with map caches programmatically

This post explains ways to access cached map service tiles programmatically. This is useful if you don’t have access to a Web ADF Map control but you still want to quickly retrieve map images for a certain area. Another reason to retrieve tiles programmatically
Posted by sterlingdq | 6 Comments
Friday, January 04, 2008 3:40 PM

Updating your map caches automatically: The key to caching dynamic data

For the fastest performance of your ArcGIS Server map services, we recommend that you use map caching wherever it’s appropriate. A map cache is a picture of your map at one point in time. Map caches are obviously appropriate for maps that don’t change
Posted by sterlingdq | 11 Comments
Wednesday, November 07, 2007 2:00 PM

Deconstructing the map cache tiling scheme (Part I)

In ArcGIS Server map caches, the tiling scheme defines how the map is broken up into a grid for creating tiles. Today’s post gives some of the terms you need to know when working with the tiling scheme. An upcoming post will discuss how to work with the
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