"Web mapping is the process of designing, implementing, generating and delivering maps on the World Wide Web ..."
4
votes
3answers
232 views
With just a web browser we want our field staff to collaboratively make complex maps with secured private data--looking for options?
Simple Question
With just a web browser we want our field staff to collaboratively make complex maps with secured private data.
What are our options?
Note: Please provide specific product examples ...
2
votes
2answers
352 views
Using Web APIs with ArcFM Data
Has anyone worked with ArcGIS server, when the data is stored in SDE with ArcFM?
While researching this Issue for a friend, I found out that ArcFM Server would be needed.
What is not clear, is if a ...
12
votes
4answers
430 views
How to create spatial tag clouds or “tag maps”?
I'm looking for implementations of spatial tag clouds or "tag maps". Some papers I found talk about a Yahoo Tag Maps API, but I couldn't find any such thing.
I'd prefer OpenLayers-based solutions, ...
4
votes
2answers
191 views
Using a web map to identify and access data
I am trying to making a webpage where the user pans and zooms on a map, and based on the location and zoom level, some data is displayed on the webpage (drawn from another source). The data that will ...
5
votes
1answer
2k views
Find bounding box of a Google map
Is it possible to get the bounding coordinates of a google map that a user has zoomed to using Javascript? I see that it can be done using the Google App Engine but I don't know if is possible using ...
7
votes
4answers
1k views
GeoWebCache: misalignment of tiles
I'm trying to test simple web map based on PostGIS/Geoserver/OpenLayers stack on Windows Server 2008.
When I load my WMS layer by:
var gwctest = new OpenLayers.Layer.WMS(
"gwctest",
...
12
votes
3answers
2k views
How to speed-up Dynamic Map services?
I am working on a ESRI Flex based application that will display data from a Dynamic Map Service. It need to be Dynamic, since the end user should have the option to turn on & off layers. This is ...
6
votes
5answers
852 views
Effectively displaying a large amount of data on Google Maps APi
I have about 20 layers that I'd like to put on a Google maps API. I assume I'll need some form of a tile cache server and perhaps under mapserver or geoserver. These layers amount to about 400mb so ...
5
votes
7answers
971 views
Problem with Swiss coordinate system overlay in WMS
I have administrative boundaries data for communities in Switzerland from SwissTopo. Original data came in shape files with 'Bessel 1841 Hotine Oblique Mercator Azimuth Natural Origin' projection.
...
3
votes
1answer
581 views
Configuring WMS from a MSSQL data source with MapGuide Open Source
I've having trouble configuring WMS out of MapGuide Open Source. Here's what I've done so far:
Installed MapGuide
Downloaded MapGuide Maestro
Created a "feature" in Maestro that connects to ...
2
votes
4answers
270 views
mapserver not displaying anything
I've been reading through Tyler Mitchel's Web Mapping Illustrated and also downloaded a copy of the itasca sample from maptools.org. Then created some shapefiles in OpenEV and modified the itasca.map ...
6
votes
4answers
217 views
How to serve web maps with user-specific datasets from ArcGIS Server
I am a new ArcGIS Server user and am trying to understand how our web mapping application specification would fit into the ArcGIS Server map services architecture.
Our application should support ...
19
votes
4answers
2k views
Offline tiled map web app
I'm not sure whether to post this here or on Stackoverflow, as it's sort of a crossover. Let me give it a try.
In the proposed HTML5 standard, there's the option of storing web application data in a ...
-4
votes
1answer
604 views
Geoportal examples: Commercial vs Open source [closed]
What geoportals do you know built in commercial environment (ESRI ArcGis Server, Intergraph) and what do you know built with Open Source solutions (like geoserver, mapserver + Open layers)?
11
votes
4answers
231 views
Forest portals in the context of GIS and maps
Do you know any portals connected with forests and forestry in the context of GIS and maps?
The best for me will be portals where the data is served via WMS, WFS or WCS services.
The only portals i ...
12
votes
3answers
5k views
How to georeference a web mercator tile correctly using gdal?
As an example I will take the following tile http://a.tile.openstreetmap.org/3/4/2.png and save it as "4_2.png".
The WGS84 coordinates of this tile can be calculated or read there by clicking the ...
5
votes
3answers
159 views
Most timely source of California Fire Map data?
Fire season always has me scouring the web for satellite fire map information. Unfortunately many of the locations I find are outdated or not maintained well. What would be the best site to go to for ...
3
votes
1answer
418 views
Is there a Java library to load data from a WFS server?
I am writing a java client to display remote GIS data. I want to load data provided in GML by a WFS server. Do you know a java library I could use for that?
2
votes
1answer
231 views
is there any free software to create a mapserver that can be installed directly in a subdomain without a server install?
i want to create a webmap page using my own shapefiles but all the mapserver softwares that i've seen need to be installed directly in the server.
so, is there any software that allows me to create ...
2
votes
3answers
159 views
Medium resolution imagery for the US?
For my web map application http://ian01.geog.psu.edu/geoserver/www/pa/pa3.html I have three levels of background imagery as the user zooms in. At small scales I'm using NASA Blue Marble and a large ...
6
votes
2answers
891 views
Restrict pan and zoom in ArcGIS Javascript API?
I'm creating a web map of a university campus. I have the map functioning, but I don't want to be able to pan off of the basemap, into whitespace. Do you know of a function that will auto-pan the ...
2
votes
2answers
3k views
Access-Control-Allow-Origin error in web map
I am having trouble getting a WFS layer working using Geoserver, OpenLayers and GeoExt.
I get the following error:
XMLHttpRequest cannot load http://10.0.0.155/geoserver/wfs. Origin ...
6
votes
5answers
4k views
How do I display geojson polygons on a map?
Here's a very basic question for you all.
I've got 17,000 polygons in a GeoDjango database. How do I create a slippy web map that can display these polygons?
In other words, do I:
load a GMap, ...
4
votes
2answers
622 views
Django PolygonField: how to display on map?
Extremely beginner question.
I have a GeoDjango model with a MultiPolygonField. How do I retrieve the value of this field and display it as a polygon on a map?
class county(models.Model):
cd = ...
3
votes
2answers
403 views
Trying to load this map service from ArcServer.. its on our own system but its not working… or I don't have access
Can anyone see this?
http://gis.co.frederick.va.us/ArcGIS/rest/services/TestSDEService/MapServer
Spatial reference is..
var initExtent = new esri.geometry.Extent({
"xmin": ...
4
votes
2answers
452 views
Data entry and manipulation using web pages
I am working on a project where we want to move a database from Microsoft Access to PostGIS, and we want the data entry forms to be web page based rather than forms within the Access database.
I am ...
12
votes
2answers
2k views
How can I switch baselayers as a user zooms in to the map in OpenLayers
I have a map which overlays Open Street Map data on imagery for Pennsylvania. As a baselayer to the roads (and eventually other layers) I have two baselayers - Blue Marble NG and USGS EROS 1ft ...
2
votes
3answers
2k views
Render vectors from OSM data in POSTGIS database
I'm a newbie when it comes to mapping application. I had successfully loaded my OpenstreetMap data in a Postgresql/PostGIS database. Now my problem is how to render the vector data (the POI's, ways, ...
5
votes
6answers
412 views
Is anyone using JSONP in Web mapping applications to get around the browser same origin policy?
Javascript based Web mapping apps that use ajax requests to get data from a server are limited by the Same Origin Policy to only request the data from a server in the same domain (subdomain and port). ...
1
vote
1answer
395 views
setting up php_mapscript in portable GIS
I'm new here, and I'm also new in webgis, I have download portable
gis, and I love this new version with lot more tools, I have a
question regarding to mapserver that comes with portable GIS v2, how
...
3
votes
2answers
3k views
OpenLayers and the legend
Is it a possibility in OL to add a legend (symbology) directly to (under) particular layer (not only switch on/off the layer)?
7
votes
2answers
184 views
What are “M” point locations on the NOAA forcecast cone map?
I don't think I've ever noticed M before.
H and S are Hurricane and Tropical Storm.
7
votes
4answers
221 views
Case studies of Participatory Spatial Planning
I am wondering if you know any well implemented geoportals for Participatory Spatial Planning. I am looking for the one related to environmental protection or connected somehow with the topic (but of ...
9
votes
3answers
1k views
Can one render maps from OpenLayers?
My organization has a web application for displaying global and regional climate data and we're considering improvements to it. Our leading idea is to create an OpenLayers-based application to ...
27
votes
10answers
4k views
What is the state of the art in html5 geospatial applications?
I am very interested in the html5 canvas element for maps; work like Cartagen from an MIT Media Lab researcher looks very promising, for example. There is some interesting SVG based work at ...
3
votes
3answers
1k views
GeoServer in Windows x64 - war file installation versus Windows installer?
After running a GeoServer war file installation in Tomcat for some time in Windows Server 2008 x64, I've become increasingly unhappy with Tomcat's chronic memory issues and leaks. Now that the ...
19
votes
7answers
6k views
Options for displaying PostGIS vectors in OpenLayers
I am very new to web-mapping, so this question may be a little misguided.
I want to have a very simple web interface using OpenLayers (or even Google Maps if that will be easier) which can display a ...
7
votes
4answers
2k views
Anybody know any WMS clients for Android?
I am interested in finding a project (with source) for a WMS client for Android.
7
votes
7answers
1k views
Examples of thematic mapping web services built with FOSS GIS
What are some current examples of web services serving thematic mapping based on free and open source software? The thematic mapping could be in the form of choropleth or point layers. It would be ...
4
votes
2answers
682 views
What are the key features of a web map?
In response to comments, I'll rephrase the question:
We're building a web based mapping and data querying system. The data are at several different scales, and should be queryable at these scales. ...
8
votes
10answers
2k views
Web GIS Development Skill Sets [closed]
What technologies and skill sets should one who wants to do web GIS development study/acquire?
One skill/technology per answer please.
9
votes
4answers
942 views
What is a “mashup”?
GIS users mix spatial data layers from an early age of GI science.
What is new in the concept of "mashup"?
Is it something really new, or only a trendy word?
7
votes
7answers
541 views
List of Virtual Globes
I kept a listing of virtual globes in 2005 and 2006, but it's now woefully out of date http://geography2.blogspot.com/2005/11/listing-of-virtual-globes.html. Today, the main four seem to be: Google ...
