I have some data that has been mapped in ArcGIS Desktop.  I would like to develop something like if I add/change some parameters a new map can be derived so that it can be used for predicting as well.  All this need be done online.  I need this because mine is a health based project and I want it to be made available for public use.   At least I would like to know how it can be published online.
3177
I want to start working on a web map at work to map some of our statistics by city.    I have an idea, but I'm not exactly sure where to start.   Are there any definitive resources that provide step by step guidance on how to do this?
44658
I've got a polygon featurelayer in ArcMap 10.  The coordinate system of the featurelayer's featureclass is web mercator.  The dataframe of the map uses an equal-area projected coordinate system.  I've got a field on the featureclass called Acreage.   I'd like to calculate Acreage based on the polygon's re-projected area (into that of the dataframe's projection).  I don't want to create a new featureclass to do this.  Is there an easy way to do this in ArcMap 10?
8001
I am currently looking at the various libraries that I can use to show a map in my custom Android App. I have found several like Mapsforge, OSMDroid, ArcGIS runtime for Android, Google Maps for Android and so on. I'm sure that I am missing a few.   Is there a comparison chart somewhere about the differences in functionalities and pros and cons of each one?   If there isn't one, we could make this question community wiki, to serve alongside  &amp; .
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I am currently trying to get a group on connected polygons that are within the same feature to a raster so I can reclassify it for cost analysis. I noticed that ArcGIS for Desktop has a "feature to raster" and "polygon to raster" tool that I can use. Both of the tools recognize my layer, and they seem like they will accomplish the same task, however, I was wondering if there is one that I should use in my specific scenario over the other, or does it really not matter?
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I've used the integration of  with QGIS, and found it a very uesful tool. Having taken a look at the R toolbox  and the  it appears they both offer only point clustering to demonstrate the proof of concept.   Can other analysis methods available in R be implemented in ArcGIS Desktop through a python script (for example, implementing specific parts of the  package)?
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I'm a long-term user of ESRI software, and I now have a need to use free and open source software.   I've been reading about OpenLayers, PostgreSQL, PostGIS, GeoServer and MapServer but I can't find a good overview stating what each product does, why it's needed, and how they all fit together.  For example,  and  both list a bunch of products but don't give enough information for me to decide which ones are relevant.  In ArcGIS, I would use the following:   file geodatabase or ArcSDE geodatabase for data storage ArcMap desktop to edit the data and compile the map document ArcGIS Server to create web services ArcGIS Server JavaScript API to create the end-user maps from the web services   What are the equivalent FOSS products?
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Is it possible to utilise the Data Driven Pages (DDP) tool in ArcMap or ArcPy to create a set of maps with the same extent but showing different layers?   To clarify I regularly make large sets of maps for projects all in the same location often with the same baselayers but modified to focus on different aspects for the relevant section of a report such as monitoring locations, land-use, key features etc. which all require separate .mxds to be created and maintained.   A DDP type system would allow me to utilise the dynamic text and ensure a standard template / output throughout, it would also make life a lot easier when updating a general figure number or comment as a report is written in one .mxd rather than multiple for a client.  I'm using ArcMap 10.1, but having read through the  I assume this would have to be done with ArcPy as I've been unable to figure out how to do it within ArcMap. I'm aware that QGIS has the , although I'm not as familiar with its capabilities but would happily use it as an alternative.
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I have created a point layer with ~150 points. I have a DEM beneath it, which is where I have taken the X and Y values from.   Does anybody know how I can retrieve the Z values, without using the info button?  I am using ArcGIS Desktop 10. I have licences for the spatial analyst etc tools.
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I have been working with QGIS/PostGIS for a while now, without problems, but now I have to change QGIS for ArcGIS Desktop 10.1.  I am having trouble adding a layer from PostgreSQL and being able to edit that layer. I want to work directly with the database, and if I change something in the map it should be reflected on the database.  Can I do this without a Geodatabase?
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Looking at this information page for a dataset hosted on esri.com:   Trying to figure out how I can get access to the raw data (either raw lat/lng coordinates or SHP).  It looks like the data is available, I just can't figure out how to pull it from this interface.
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I'm new in Python programming If there are websites where developers can share their add-ins and scripts that will be great. do you know any? unfortunately, arcgis.com only provide very few
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I have a conundrum that I am getting mixed advice on how to go about.  Therefore id like to put it to GIS-SE for some justified answers.  Scenario:     Client has a web mapping application.  Does not want to split into multiple smaller applications.  Although this goes against what the modern day approach is for maps on the web,  (i.e. lots of focussed web-map apps over one main web-map) I strongly believe that for some users, trying to replicate a GIS application on the web is ok (). Client has cached as much of his basemap layers into separate services. Client still requires an additional 600-700 layers in a dynamic map service... The service will be published with all of these layers turned off. It is not anticipated that users will turn on more than 10-40 layers at a time.   I imagine your initial reaction to this is similar to mine (600+?! WTF?!)  However - the requirement is set in stone and why not?  Their prior ArcIMS application had similar functionality, so why can't this newer ArcGIS Server product do the same?  The users potentially need to be able to cross compare and perform analysis on the entire range of layers, even if the layers belong to other departments.  Before you jump to conclusions, the client is a clued up ArcGIS Server admin. They have administered the 600 layers by all of the best practice rules: e.g. scale ranges combined with definition queries; annotation over labelling; generalising complex layers at small scales; publish as MSDs; etc  Problem:  What is the better approach here?     Publish all 600 layers into one dynamic map service   Split the layers into logical groupings (hydrology, planning, ecology, utilities, etc)   If you go with #1, and you have a few complex layers turned on.  If you want to turn on a simple points layer, then ArcGIS Server will still have to render the entire layers being displayed all over again.  If you go with #2, each time your making a request, potentially, the web application could have to make several GET requests for ExportMaps from the individual map services (is this bad, or does it create additional load to ArcGIS Server over #1?)  And then this leads to configuration &amp; tuning to ensure everything is as quick as possible. We can scale the back end of ArcGIS Server to multiple hosts and have some good hardware to sit it on.  If you go with #1, you can throw the maximum # of instances that you AGS can handle.  If you go with #2, I assume you evaluate the performance of the map services (load testing and look at wait times) and address the min/max instances accordingly to ensure there is not one service that is a 'weak link'.  Im currently leaning towards the #2 approach, as my head is still telling me that having 600 layers in one service is madness, but if they are all turned off by default, there really is no issue.  Would love to hear your thoughts.  Let me know if you need more info via the comments, but not looking for answers like 'use a desktop application' or 'educate them to do things differently'    From discussions in comments, I failed to mention another consideration.  The application that the service will be consumed within, has the ability for layer level security (at the application level).  Therefore the group of users (that is fairly large) are assigned to a particular role, and that role will have access to the full 600 layers.  Other roles will be limited.
104578
I was hoping to use ESRI's ArcGIS Editor for OpenStreetMap to view OpenStreetMap data in ArcMap, but my organization hasn't upgraded to version 10 yet.   I also know about ArcBruTile, but I prefer not to use that software because of the potential TOS violations with Google, Bing, etc.   Does anyone know of another way to bring OpenStreetMap tiles into ArcGIS 9.3.1?
25803
For various reasons I need to add layers to a map object using a response returned by an esriRequest to an ArcGIS Server. One reason being the data will change constantly and hard coding FeatureLayer URLs would prove inefficient.  I have successfully been able to return a JSON object containing attribution that appears to be the same data one would see on the layers REST node.     maps = [];  require([     "esri/map", "esri/layers/FeatureLayer",      "esri/dijit/Print", "esri/tasks/PrintTemplate", "esri/request",      "esri/config","esri/dijit/BasemapToggle",      "dojo/_base/array", "dojo/dom", "dojo/parser",  "dojo/domReady!"  ], function (Map, FeatureLayer,Print, PrintTemplate, esriRequest,      esriConfig,BasemapToggle,arrayUtils, dom, parser){  parser.parse();  console.log("Map Start");  esriConfig.defaults.io.proxyUrl = "http://........./proxy.ashx";  maps.addRespLyrs = function addRespLyrs (layer) {     if (layer.type == "Feature layer") {         console.log(layer.name);         maps.map.addLayer(layer);     } };   maps.handleMapInfo = function handleMapInfo (resp) {     console.log("handleMapInfo called");     maps.layers = resp.layers;     console.log(maps.layers);     for (i in maps.layers) {         var layer = maps.layers[i];         maps.addRespLyrs(layer);     } };  maps.layerRequest = function layerRequest () {     var mapInfo = esriRequest({         "url": "https://........./Application Name/MapServer/layers",         "content" : {"f":"json"},         "handleAs" : "json",         "callbackParamName" : "callback"     });     mapInfo.then(maps.handleMapInfo); };  maps.map = new Map("cpCentCent", {     basemap:"topo",     center: [-98.5795, 39.8282],     zoom: 5 });   console.log("Map End");   When attempting to add the data using the addLayer() method I recieve an error thrown from deep with in esri's API.      init.js:199 TypeError: a.id.match is not a function(…) "TypeError: a.id.match is not a function   Any thoughts as to what could be going wrong here or how to create a layer from my JSON?
35716
Through my frustration of not finding the post-installation wizard with ArcSDE 10.1 and being unsuccessful with the command line tool to start an SDE service on our SDE databases, I found I was able to access the databases and copy/past/add features/delete features/etc. all through direct connections to our SQL Server 2012 machine. This was WITHOUT ArcSDE running.   So... The question is, why do I need to go through the trouble of trying to get the SDE services to run if I can manage our databases through the Desktop tools? I was even able to create an enterprise geodatabase and verified that all of the necessary business tables were created. I have even recreated all our map services in ArcGIS Server 10.1 with direct connect and the web editing is perfectly working.   Perhaps I'm missing something...  UPDATE:  As indicated in the  topic:     "The recommended method to access enterprise geodatabases is to   connect directly from ArcGIS clients. If you only use direct   connections to your geodatabase, you do not have to install the ArcSDE   application server."   If you need to edit settings in the ArcSDE system tables, though, you should still install the command line tools included with the application server. I don't think editing system tables directly through SQL is supported technically.
32373
I want to try to make a simple 3D map for a small area (10 square miles) with some housing, some roads and some vegetation on it. My geodata is as follows:    shapes with houses/roads/vegetation.  LIDAR point cloud data over the area (can easily be built to a dem). georeferenced aerial image.   Any idea where to start to bundle these geodata together and make a neat looking 3D map?
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I have raster displaying Lat/ Long grid, but map information shows that, it s been mapped in Gauss Krugger projetion/ Beijing 1954. So, technically we need to geo reference the map in Gauss Krugger/ Beigjing 1954 Projectec Coordinated System in ArcGIS.   So, basically what I need to do is, georeference raster by input of Lat/Long, but need to update the georeferencing by projected coordinated system mentioned above.  In Global mapper, we can load the raster and enter Lat/Long available in the map, straight away it will be recalculated to Projected coordinated system.   Can we get anything same in ArcGIS?