function thread(threadid, title, poster, threaddate, threadtime, message, postid) { this.threadid = threadid; this.title = title; this.poster = poster; this.threaddate = threaddate; this.threadtime = threadtime; // Post object, contains the post data this.post = new post(message, postid); } // This function is used to show the posts of the thread. function post(message, postid) { this.postid = postid; this.message = message; } var threads = new Array(15); threads[0] = new thread(4774414, 'Creating a Liquefaction Potential Map Using Free Online GIS Resources', 'msarmstrong1', '06/24/10', '10:48 AM','

It has been a month since I asked this question so does that mean no?? Maybe should consider changing the title of the Forum to "Mapping for Everyone With Money To Spend Community" :-)

Hi: I am a Soils and Earth Science student at Cal Poly San Luis Obispo and I am researching the possibility of "the average person" with limited computer savvy utilizing free, available online GIS maps such as Soil Types, Topography, bodies of Water and Ground Water Elevations, fault locations, etc., creating a Liquefaction Potential Map by layering available maps and outline areas that could most likely be affected by liquefaction during an earthquake. Are there free online resource tools that can be utilized to accomplish this? I have found several free GIS maps that could be utilized but have been unsuccessful in finding any free online tools available to use to outline the parameters of the areas that might be affected based on criteria that I input.

Thanks! Mike

','40788973'); threads[1] = new thread(4725496, 'Projected Shapefiles', 'tooniron', '05/20/10', '01:06 AM','I have a basic shapefile of some generalised buildings, and it\'s using British National Grid (as can be seen in the .prj), and it looks fine in ArcMap.

Loading it into ArcGIS Explorer (with the 2D Coordinate System set to British_National_Grid and the Transformation set to OSGB_1936_To_WGS_1984_1), the buildings appear in the right place.  However, when I change the basemap (or change to 3D) the buildings are now over the road (about 100m east of where they should be) - when I changed the basemap back to the original (to check the problem wasn\'t with the different base mapping) the buildings are still shown in the wrong place. 

On Adding the Shapefile


After changing the background mapping (and changing it back)

Has anybody else experienced similar problems ? 

','40321539'); threads[2] = new thread(4723998, 'ArcExplorer - Loading UK Post Codes', 'NickHancock', '05/19/10', '02:34 AM','Hi, i am trying to load a file which contains UK Post Codes and some description about the post code. The files does not have any co-ordinate information and I can not get this to load using the Address facility. Can anyone help?

Thanks

Nick
','40306337'); threads[3] = new thread(4665230, 'STUDENT GIS MODEL', 'cannon87', '04/08/10', '08:52 AM','

I am a student at North Carolina A&T SU in Greensboro NC and i am conducting a GIS project on truancy in suitland MD. I am requesting any assistance on how to obtain the shape file for Prince Georges county MD that contains all layers including neighborhoods and school districts.Any help is greatly appreciated.

','39713617'); threads[4] = new thread(4651927, 'Features offered by the Mapping for Everyone', 'scizmeli', '03/30/10', '09:06 AM','Dear community,
\r\n
\r\n
\r\nWe would like to create a Flash-driven interactive map of a city where we would display our own data. This is a non-profit project of a small NGO. We don\'t own any of ESRI\'s commercial products. We would like to know if we can make it using the free tools offered by ESRI\'s "Mapping for Everyone" (Flex API).
\r\n
\r\nThe data set we own include :
\r\n* vector point data
\r\n* vector polygons
\r\n* time series of classified Landsat images
\r\n
\r\nMy questions are as follows :
\r\n
\r\n* Are the "Mapping for Everyone" services involve data hosting from ESRI\'s side? If so, what are the hard-disk, bandwidth and other limits? No mention of such things on the website;
\r\n
\r\n* If no hosting provided, where should we host our spatial data and with what kind of protocol should the data be communicated to the flash client? No mention of any kind of open standards like WMS/WFS in the API documentation.
\r\n
\r\nI am a newbie and would appreciate your kindly patience
\r\nthank you very much for helping me to get started
\r\n
\r\nbest
\r\nServet','39574966'); threads[5] = new thread(4593148, 'Explore Your Place History', 'ubatsukh', '02/18/10', '03:47 PM','

I recently wrote the application called Explore Your Place History using the ArcGIS API for Flex. This application helps to illustrate how the environment may impact your health.  For instance, it geocodes the places you have lived inside a data grid and buffers the addresses within a 3 mile radius to check if there are any toxic release inventory items (source: U.S. EPA).  If there are no toxic release inventory items found within the 3 mile radius it will add 2 mile increments to the buffer parameters until results are found. It also shows the Heart Attack Rate (source: The Darthmouth Atlas Project) for your address.  To capture the data in report format, I used the AlivePDF API to generate a PDF report that pulls the data from the data grid. This is all done on the client-side, which make me happy that I don’t need to use any server-side processes. There is also a share map button that allows you to embed the map or share the URL of the map you created.

','38981216'); threads[6] = new thread(4489776, 'Help on .Net web ADF', 'mukunda', '02/02/10', '09:41 AM','hello experts,
\r\n
\r\ni am currently working on a web mapping application using .Net web ADF. can any one tell me how to zoom the map to certain scale level. i.e. how to set or change the map scale programatically?
\r\n
\r\nThanks
\r\nMukund','38588607'); threads[7] = new thread(4449550, 'Developer Summit (DevSummit)', 'dmartinez', '01/29/10', '09:37 AM','

DevSummit

The DevSummit is less than two months away and there is still time to register for discounts. If you haven’t had the opportunity to check out the Dev Summit Web site or explore the sessions available here are a few that caught my eye.

ESRI Business Analyst APIs -- Putting Market Analysis into Your Apps

Python Scripting for Map Automation in ArcGIS 10

Using and Extending the ArcGIS WebMap for Flex

Developing Applications with the ArcGIS for iPhone API

Of course you should always check out the Web Mapping APIs sessions. We continue to add new templates, functionality, and samples. In addition, the participation among the community continues to grow as there are code samples and live published applications submitted by developers in the Code Galleries.   

Working with the ArcGIS API for Flex

 

Working with the ArcGIS API for JavaScript

Working with the ArcGIS API for Microsoft Silverlight/WPF

Keynote & User Presentations

This year the keynote will focus around platforms in the cloud. Last year, was the first time we allowed attendees to present at the DevSummit. This was definitely a hit and we have increased the amount of presentation slots available. User Presentations are selected through a voting process by the community (you) so if you haven’t voted or would like to view them I would recommend do so as last year there were great topics.  We hope to see you at the DevSummit.

 

David

','38461263'); threads[8] = new thread(4448997, 'Mapping For Everyone', 'josephkerski', '01/29/10', '08:27 AM','Greetings:

I serve on the Education Team at ESRI and conduct many workshops throughout the year for educators in primary, secondary, community college, university, library, museum, and informal settings.  I make frequent use of the http://www.esri.com/mappingforeveryone site.  It provides an excellent way of introducing GIS, web GIS, choropleth mapping, and examining communities based on scale and 8 different variables.  I encourage you to do the same, and also share with the group what you are doing with this resource.

--Joseph Kerski
','38459000'); threads[9] = new thread(4439199, 'Mashup Challenge, Win up to $10,000', 'dmartinez', '01/28/10', '08:39 AM','

In case you haven’t heard, last week ESRI released a mashup/code challenge to the developer community. In the past, our challenges were only open to licensed ArcGIS or EDN customers, however, this challenge is open to all (no licenses needed) developers who meet the eligibility requirements.  All you need to do is build a mashup from one of our Web Mapping APIs (Flex, Silverlight, and JavaScript) and combine data from more than one source including content from ArcGIS Online.  You will also need to shoot a video of your application and post it on YouTube. The deadline for submissions is March 5, 2010 and you could possibly win one of the four cash prizes below.  Take the Mashup Challenge now.

1st Place: $10,000

2nd Place: $5,000

3rd Place: $2,500

4th Place: $2,500

','38426441'); threads[10] = new thread(4410416, 'Subdivision Level Mapping', 'TheRECoach', '01/25/10', '06:02 PM','

Can we design a map down to the naming of each subdivision level?

','38339971'); threads[11] = new thread(4348525, 'Basic requirements', 'vconover', '01/19/10', '01:00 PM','

I would like to use the mapping tool in my class of 9th graders, however, the maps do not show up on the monitor.  Is there something I need to install to make this work?

','38169239'); threads[12] = new thread(4050495, 'Earthquake Sample', 'dmartinez', '12/15/09', '10:27 AM','

I just wanted to point out some interesting features and functionality of this sample application on the front page of the Web Mapping APIs. http://serverx.esri.com/arcgisjavascriptapi/codegallery/EarthquakePopulation.html

First, it takes advantage of some free services for noncommercial use available through ArcGIS Online such as the street base map, which is a cached tiled map service. It also uses some sample services that are published under our sampleserver1 through ArcGIS Online, including a dynamic map service for the population density polygons, a geoprocessing task to calculate the population within the 100 mile predefined buffer, and a geometry task to create the buffer (polygon graphic with geometries). All of these services and tasks are served up through ArcGIS Online and does not require the client application to perform any analysis or calculation, it is all done by ArcGIS Online.

Another interesting usage of a service is how it uses Yahoo Pipes to get the earthquakes from the USGS using GeoRSS feeds and returns it as JSON. The earthquakes are retrieved after the map loads and it populates the data grid with these results. To demonstrate some of the capabilities of the ArcGIS API for JavaScript the InfoWindow is used along with the InfoTemplate to show the attributes from the earthquakes. PictureMarkerSymbols are used as graphics to display the longitude and latitude of each earthquake.  The code is well documented and you can take away some good coding patterns as well as how to combine multiple services into a single application. If anyone has any applications they would like to discuss or post, feel free to upload them to our community.

Cheers,

David   

','37060361'); threads[13] = new thread(3762641, 'Flex API - free Live Training Seminar', 'blackpoll', '10/27/09', '09:07 AM','All,

A recording of the Live Training Seminar Building Rich Internet Applications with ArcGIS API for Flex can be found at:

http://training.esri.com/acb2000/showdetl.cfm?DID=6&Product_ID=940

Enjoy!

-Matthew Baker

','35925205'); threads[14] = new thread(3699342, 'Behind the Make a Map App', 'Jeff_Archer', '10/05/09', '09:18 PM','Hello everyone,

I recently worked with the ESRI web folks to put together the Make a map application - http://tr.im/APlT.  This was a fun application to build, and I hope you find it fun to use.

This is a prototype application intended to highlight the ArcGIS API for Flex, the great demographic data available from ArcGIS Onilne, as well as the "Map Sandwich" web map layering technique proposed by the ESRI Mapping Center Team - http://tr.im/APgF.

This forum thread is intended to allow for discussions of how this application was built, and to allow for community support.  Also, since the application is in beta at the time of this thread creation, feel free to contribute your suggestions for improvement!  How the application evolves from here is largely up to you, so let us know what you think.

The most interesting technical aspect of this application is the extensive communication between the HTML host page and the embedded ArcGIS API for Flex application.  A working sample that was used to build this application will soon be available in the web mapping API sample gallery.  Stay tuned!  I\'ll be sure to update the thread as soon as it\'s available.

enjoy,

Jeff Archer 
','35590493');