Introduction

Here is a quick sample demonstrating the use of a Class Breaks Renderer in the ESRI ArcGIS iPhone API. The sample queries an ArcGIS Server Map Service for cities in California and renders them as graphics based on the population. Here’s a screenshot of the app running in the simulator.

Click here to download the source code from this article.

More...

Introduction

Last week I started to familiarize myself with the ESRI ArcGIS iPhone API public beta and I blogged about my First Impressions. This week I had a chance to play around with it some more and I decided to investigate working with location. I enhanced my sample application from last week to include a Location button, which when pressed zooms the map to the current location and displays a custom push pin graphic.

Click here to download the source code from this article.

There are two ways you can work with location while writing an app with ESRI’s iPhone API:

• Work directly with Apple’s Core Location framework
• Use ESRI AGSGPS class (Direct Link or Reference Index)

ESRI’s AGSGPS class provides a convenient wrapper around Core Location if you don’t want (or need) to delve into the details of the framework.

More...

The ESRI ArcGIS iPhone API was released to public beta today. Jeff Shaner blogged and tweeted about it this morning.

I downloaded the SDK this afternoon and took it for a spin. My first impressions are very favorable. Although the documentation is still a bit sparse in a few places, that’s to be expected for a first beta.

The SDK is another client API for consuming ArcGIS Server REST endpoints, and it works with versions 9.3.1 and 10.0. If you have worked with any of the other client APIs, you will already be familiar with the basic paradigm of interaction with the various REST services offered by ArcGIS Server.

The SDK Concepts Documentation provides a basic overview of the technology and includes a number of brief walkthroughs as well as short code samples illustrating how to perform common programming tasks with the API.

The installation also includes six sample applications which are installed into your ~/Library/SDKs/Samples folder. Studying these sample apps is a good way to jumpstart your familiarity with the API.

But enough talk already, let’s see some code! More...

Presenting the final day of my favorite tweets from the ESRI Business Partners Conference / Developer Summit. Many thanks to all the Tweeps who kept the rest of us informed. I hope my small role of documenting my favorites has helped a few others.

• http://twitpic.com/1atozp - Empty halls at #devsummit. Guess the party last night was a success. #earlybirdsession - via @martenhogeweg
• #MVC, test-driven development & #IOC shown with #Cairngorm 3 #devsummit #flex #as3 - via @dafkobyte
• Extending the tiledmapservicelayer in silverlight with @rex_hansen using openstreetmap. Very cool. #devsummit - via @vtforester
• @SharpGIS Dissin' the Flex folks. Too funny. I'm thinking Dodgeball game...flex team vs silverlight team. #devsummit - via @vtforester
• Yay Jeremy! "Don't put ArcMap inside firefox" #devsummit #usability - via @bnoyle
• For those interested in JS API 2 public beta...you need to get the bits from ESRI blogs. not integrated into resource centers yet #devsummit - via @bnoyle
• Idea for next #DevSummit - API team should show nice, well designed workflow apps, and then go through how to build'em and release src - via @dbouwman
• heard some people wondering what happened to gdb versioning. indeed no talk by ESRI at #devsummit -all web editing going directly to the gdb - via @oseidel
• New Geolocator stuff is impressive. Configurable, Grammar-based with a plugin model.  Unicode/internationalised. Total rewrite. #DevSummit - via @geeknixta
• Learn more about the forthcoming #ESRI ArcGIS Explorer Online from these #devsummit videos: http://bit.ly/bQ6mYW - via @bernszukalski
• ArcGIS 10 Final release in June #devsummit - via @RealIdahoBoy
• arcgis 10 prerelease available for all EDN #devsummit - via @Gazymodo
• Everyone heard, ezre said Fedora 12 support on its way. #devsummit - via @cageyjames
• @cageyjames fedora not at 10, that is post 10 #devsummit - via @spangrud
• Arcgisserver 10 to get openid support in the future! #devsummit - via @RealIdahoBoy
• #ArcGIS SDK for #iPhone: map layers, overlay graphics, search/id, locate address, collect data & tasks. #devsummit - via @dafkobyte
• Disappointed that feature service web editing is only supported using SDE. Small-ish shops could really benefit from this. #devsummit - via @BrightRain
• Last day of #devsummit. Thanks to everyone at #ESRI and I look forward to seeing you all next year. - via @calvinit21
• at Palm Springs airport. goodbye #devsummit - via @Gazymodo

For newcomers to the series, here are my day 1, day 2, day 3 and day 4 favorites.

Enjoy!

Presenting day 4 of my favorite tweets from the ESRI Business Partners Conference / Developer Summit. A lot more tweets coming through today with the #devsummit hash tag than there were the first two days with the #esri_bpc hash tag. My unscientific conclusion is that developers use Twitter more than business types.

• @trbaker Where are your #Twitter followers? GeoTweeters: http://bit.ly/lscto #devsummit #gis #socialnetworking - via @geoinformacao
• Sweet! We wom the mashup challenge! Plus big shout out to @dbouwman from #esri #devsummit - via @bnoyle
• #ESRI #mashup challenge winners now online at http://bit.ly/5jG8Dz #DevSummit #esridevsummit - via @giseducation
• Recently "mashup," now "cloud." Keywords we get to listen to for a while. #devsummit - via @RealIdahoBoy
• David Chappell: "Startups love cloud platforms. They allow startups to fail fast and cheaply (or even free)." #devsummit - via @ChrisSpagnuolo
• Hopefully Chappell will show how expensive windows azure is. #devsummit - via @cageyjames
• #esri story on cloud computing is good, but still need more info on cost/time to scale and a move away from ELA only needed #devsummit - via @bnoyle
• Spatial data stored in user tables, can be accessed via SQL #devsummit - via @TrippingTheBits
• It is odd to me tho that complex maps perform better using SHP in AGS. #devsummit - via @kirrilian
• The Flex editor is nice, but worry some will forget to use tools in the context of a workflow. Don't re-create ArcEditor in Flex! #DevSummit - via @dbouwman
• New to ArcGIS 10: Query Layers = layers based on real SQL queries! #devsummit - via @TrippingTheBits
• Sounds like FGDB API is still a ways off #devsummit - via @cageyjames
• No support for Annotation, Relationships, Networks, Topologies, Representations, Terrains and Parcel Fabrics in FGDB API #devsummit - via @cageyjames
• Sweet. Ed architecting a SQL compatible geocode soln. Off the cuff in response to question #devsummit - via @bnoyle
• Browser usage in demos: Firefox = most, Chrome = a couple, IE = NONE. #devsummit - via @gadtweet
• REST extension URLs: /serverUrl/exts/extName/extMethod #devsummit - via @TrippingTheBits
• Woah, add AGS Inet connection to ArcMap, right-click, choose Edit Features, makes local copy, sync back to db #devsummit - via @TrippingTheBits
• #devsummit ver 2 of esri #silverlight API built on #VS2010 and #SL4. New widgets for editing,time,and feature data editing in toolkit. - via @cfemmer
• #devsummit @SharpGIS is spreading the #SL goodness. woot for binding and commanding! - via @jrockers
• Playing with ArcGIS Explorer sdk...pretty awesome! A lot more control than I expected! #devsummit - via @NateStrout
• iPhone SDK for AGS Server interesting. If only I had a Mac for development.... #devsummit - via @northpointgis
• MS Surface demo, picking AGOL sources and dropping onto a map is slick! #DevSummit - via @geeknixta
• #devsummit Iphone SDK will work with iPad and iTouch too. SDK assumes always on connection. - via @jshek

For newcomers to the series, here are my day 1, day 2 and day 3 favorites.

Enjoy!

Presenting day 3 of my favorite tweets from the ESRI Business Partners Conference / Developer Summit. I missed most of the morning due to being on a client site. But here are my faves from the afternoon.

• @MapsRus I was in the Server session at the #ESRI_BPC - Nothing new in ADF for 10 . Only bug fixes. All but dead. #webADF #DevSummit - via @dbouwman
• REST Server Object Extension sounds easy, implement the two method IRESTRequestHandler #devsummit - via @TrippingTheBits
• At desktop add-in session at #devsummit. No more COM wireup with extensions. Fantastic! - via @BrightRain
• #devsummit @ajhaddad just said three very exciting letters, "MEF" - via @jrockers
• @rex_hansen showing us how to use Expression Blend to make a Silverlight app. Great starter session. API is nicely integrated. #DevSummit - via @geeknixta
• At the Silverlight WPF session where Rex @rexhansen is showing the real power of Binding #devsummit - via @alpascual
• @dbouwman just called me a troublemaker in his presentation. #sweet #devsummit - via @cageyjames
• ArcGIS for Silverlight API 2.0 public beta coming in April. Supporting VS2010, Expression Blend 4, Silverlight 4, .NET 3.5 & 4. #DevSummit - via @geeknixta
• Wow. Presenter says "filegdb faster on linux than sde". Goes against everything esri has said for years. #devsummit - via @geodatabase 
• Videos of the #ESRI_BPC demos are now available. The ArcGIS Server on Amazon demo will be posted tomorrow. http://is.gd/aUZcV - via @ESRI_BPC
• Where are the Avenue sessions? #devsummit - via @odoenet

Not too many tweets using the #esri_bpc hash tag any more. Most tweeps have moved over to #devsummit.

For newcomers to the series, here are my day 1 and day 2 favorites.

Enjoy!

Presenting day 2 of my favorite tweets from the ESRI Business Partners Conference / Developer Summit:

• There will be a new workspace type in 10 - "SQL Workspace" for direct SQL queries (spatial/nonspatial) #devsummit - via @eriknybergNET
• ArcGIS.com will be a great resource for #maps #WebApps #mobileApps and tools. #esri_bpc - via @cmcginty
• Like the features of ArcGIS.com that allow you to share with everyone or by limiting to groups. Very useful for info prep. #esri_bpc - via @cmcginty
• @mraad shows usage of local Shapefiles, and collaborative web map editing environment. #webmap #devsummit - via @dafkobyte
• ArcGIS JavaScript API 2.0 public beta made available today http://tinyurl.com/yez986j #ESRI #devsummit - via @SterlingGIS
• AGS 10 (JavaScript 2.0 API) looks great- editing and temporal data display. Nice to see all those oil & gas well app samples. #devsummit - via @dropstones
• New AGS 'FeatureServer' will allow for feature insert & update via REST & SOAP APIs #devsummit - via @TrippingTheBits
• Android sdk will be next big push after Arc10 release #Esri_bpc #devsummit - via @mapitout
• details being presented on new ESRI certification program #ESRI_BPC - via @DaleLoberger
• You know you're a bit of a nerd when you pick up a Spock bobblehead. #devsummit #swag - via @adamjpfister

Tweets seemed to peter out around 4pm today. I guess everyone was hitting the bar by then...

For newcomers to the series, day 1 favorites are here.

Enjoy!

For those of you (like me) who couldn't make it to the ESRI Business Partner Conference / Developer Summit, you can follow the action on Twitter with the hash code #esri_bpc. You should also keep an eye on #devsummit since @dbouwman seems to have an aversion to typing underscores.

Here are a few of my favorite tweets from day 1:

• #esri_bpc: Where ESRI decides when and how to eat its offspring. - via @howardbutler
• 4min to have AGS set-up in the cloud? Wow! That should drop some billable hours... #esri_bpc - via @spanaut
• ArcGIS in the Amazon cloud will work just like any other platform - except for the loading tons of data ;-) #esri_bpc - via @cmcginty
• Dear ESRI, stop saying it takes 4 min to set up ArcGIS on AWS. #false #esri_bpc - via @cageyjames
• Both an iPhone app for ArcGIS and an iPhone SDK will be available with ArcGIS 10 #ESRI_BPC - via @jeroenvanwinden
• No support for legend /toc in rest api at 10... This is a GOOD thing! #devsummit - via @dbouwman
• Just had demo of SQL Azure Spatial from Spatial Ed at #esri_bpc -- impressive. See Ed's blog http://bit.ly/bbNDoE + #FME just *works* on it - via @DaleAtSafe
• @ESRI should be paying @dbouwman & @cageyjames some coin for their coverage of AGS10 at #DevSummit. <foil hat on> - via @tokumin
• As compelling at this session is, I'm gonna install v10 beta on my laptop... #multi-tasking #DevSummit - via @dbouwman

Enjoy!

Overview

This is the third post in a series where I discuss techniques for interacting with the ArcGIS Server REST API from within a Flex 3 application built with the Google Maps API for Flash. The first and second posts presented and refined an example that demonstrated how to stream features from ArcGIS Server and overlay them on top of Google Maps data. This post demonstrates how to display an ArcGIS Server cached tile layer as a custom map type with the Google Maps API for Flash.

Sample Application Concepts

The sample application works as follows:

• The Google Maps API for Flash is embedded in a Flex 3 application.
• A cached tile layer representing Land Base features for Portland, Oregon is served via an ArcGIS Server Map Service, accessible via ArcGIS Server’s REST API.
• The cached tile layer appears as a custom map type in the Google Maps API for Flash User Interface.
• The cached tile layer is displayed at zoom levels 0 - 19.

Here are a couple of screen shots of the sample application. The first shows the application with the custom “Land Base” map type selected. The second shows the application with the normal map type selected.

Live example is here, and source code is here. More...

Overview

When working with the Find Address Task in the ArcGIS Server WebADF, the default zoom scale that is displayed when the user zooms to a found address might not be what you want. This article discusses how to change it using the ZoomToPointFactor property. More...