"Web mapping is the process of designing, implementing, generating and delivering maps on the World Wide Web ..."

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13
votes
3answers
1k views

Best practices for visualising clustered features in web maps?

I'm looking for the best symbol to display clustered features in the ArcGIS Server JS API. I don't like the "fly-out" animated cluster symbol, as used in the Silverlight API clustering or the JS ...
8
votes
4answers
745 views

What is the best web editor and server for postgis?

I'm looking for a web editor (similar to openstreetmap) that works with an map Server (postGIS). This should permit edit and create new structures on map. What is the best option? Can you help me? ...
12
votes
1answer
918 views

Displaying cross-sections on a web page

I'm looking for inspiration and possible tools on how to display cross-sections on a (dynamic) webpage. More specifically I have to show on these cross-sections how underground pipelines are located ...
12
votes
3answers
7k 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 ...
14
votes
2answers
327 views

Toward a protocol for encoding vector data as image

This is a follow up to this question: How to create Vector Polygons at the same amazing speeds GISCloud is able to render them? In his answer, Yagi outlines a rationale for encoding geographic ...
9
votes
4answers
2k 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?
6
votes
3answers
1k views

30,000 data points… can this be reasonably served using openlayers?

I'm trying to tackle a web GIS problem and need to figure out the best strategy. I have a map with 30,000 cells on it forming a grid for the province of Alberta. I have a list of data points for ...
6
votes
2answers
287 views

How could I crowdsource spatial data with online clickable map?

Here in northern Tanzania we are experiencing a huge westward butterfly migration - originally those of us who saw it thought it was local but it turns out that it's very widespread. We're getting ...
12
votes
4answers
555 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, ...
10
votes
3answers
2k views

Are there open-source alternatives to ArcGIS online that can be hosted on my own server?

I know this might be too broad topic. But I am looking for web-GIS portal similar to ArcGIS online that is self-installable (configurable) to be hosted in my private server. The main features should ...
10
votes
4answers
3k views

Looking for a Table of Contents sample for the ArcGIS Server JavaScript API

Where can I find an example of a Table of Contents control to plug into the ArcGIS Server JavaScript API 2.3? Ideally it should support feature/dynamic/tiled layers; show symbology; and allow grouped ...
6
votes
1answer
2k views

Using local mbtiles in openlayers?

--The problem-- I've successfully added mbtiles from Mapbox free online source to OpenLayers, but cannot figure out how to get the mbtiles I've created/stored locally to show up in OpenLayers. --The ...
3
votes
1answer
867 views

Good examples of interactive maps and associated technologies?

The display of maps and data within an interactive framework is becoming more prevalent online. I'm thinking beyond merely the ability to pan/zoom/control layers, but more along the lines of ...
3
votes
2answers
407 views

Design question: what's the role of WFS-T in this kind of webapp?

I have more experience in "traditional" (Java EE) webapp development, and I am trying to figure out a decent design for a mapping web application. My application has a map, and users can see and edit ...
5
votes
1answer
168 views

Looking for collaborative webmapping projects

I´m looking for open source collaborative web mapping projects which allow vector editing, wms display and other features like comments, photo-uploads etc. I´ve only found Ushahidi and Sahana so far, ...
5
votes
1answer
2k views

How to serve local maps for an offline HTML5 webmapping app?

How could one serve maps (tiles in wherever format possible) within a Android device to be consumed by an offline webmapping app also accessed within the device's browser?
5
votes
2answers
530 views

Disk space and numbers of tiles for world layer

I'm thinking about testing tiles generation of a world layer for webmapping. In this context, I want to know how I can calculate the number of tiles (256x256 for tilecache if I remember) I will need ...
4
votes
3answers
421 views

Is there a web mapping server works on a linux shared hosting account?

Question: Is there a web mapping server software out there that works on a typical linux shared hosting account? Background: I have been trying find a web mapping server that would allow me to serve ...
7
votes
3answers
341 views

How to handle display of nested polygons (census, county/state, etc) for a given map extent

My question is how best to decide which layer (from a set of nested, aggregated census polygons) to display for any given map extent in an online map. Australia's census boundaries are built from ...
6
votes
1answer
558 views

Data visualization and maintenance tool

Background Looking to leverage an existing GIS system for exploring organizational data. Architecture The following figure represents a high-level overview of the system's desired features: The ...
3
votes
1answer
996 views

Problems with gxp Print plugin via opengeosuite sdk

I am trying to import the print plugin within an application built using the Opengeo Suite sdk and I have run into issues as is described in the following thread ...
3
votes
8answers
10k views

How to create an interactive map with JQuery and HTML?

I want to develop a map in JQuery and HTML. It needs to show world country borders. It must be enabled mouse hover effect and also popup (when mouse over) in which I can add my own text. What JS ...
2
votes
2answers
858 views

gdal2tiles.py generates wrong tiles / MapTiler the right ones

I'm trying to generate tiles with gdal2tiles.py and the resulting tiles are stored as 18/132639/164219. If I do the same thing with MapTiler (the GUI variant of gdal2tiles) the tile result is ...
0
votes
0answers
678 views

PostGIS data visualization

I have dump my data in PostGIS from shapefile successfully. I made a postgres connection through PHP and that also returning the data of other field. But the main problem is GEOM field visualization. ...
6
votes
1answer
669 views

What server and API to use for displaying complex polygons with dynamic symbology?

Background I need to interface a map into an existing website which allows the user to query a database and which currently results in a table listing population statistics per county. For example, ...
5
votes
6answers
531 views

How to put zipcodes data onto a web map?

This is to create a cellphone coverage map. I'm being given a list of zipcodes and need to create a detailed static cellphone map (plus, ideally, an interactive zoomable map) of cellphone coverage ...
5
votes
7answers
1k 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. ...
4
votes
3answers
96 views

What's the most appropriate tool(set) for creating a community map?

When you move to a new place, it's very useful to have maps tailored to your interests available at the click of a mouse or tap of a smart phone. The following projects are great examples of more ...
4
votes
3answers
109 views

Alternative layperson-friendly names for 'Legend'?

I am making a mobile mapping app that has a button that displays a legend. Because my legend is initially hidden from view, it is really important the text I put in the button that displays the ...
4
votes
2answers
666 views

How Can I make UTFGrid files?

I have been looking at the UTFGrid specification and the usage of UTFGrid in Openlayers. How do I create the required UTFGrid files for my data in PostGIS?
4
votes
2answers
698 views

PHP tile server

I am newbie in PHP. I am using tileserver.php to serve my *.mbtiles as web map. I have configure it and when I am trying to access the localhost it replying like following Now please help me to ...
3
votes
2answers
4k views

Is there a way to limit the overview map to a certain zoom level?

The OpenLayers overview map control works great when I use standard options. I would like to limit the overview to one resolution, but I can't seem to find the right combination of values for the ...
3
votes
2answers
397 views

mapserver displays raster image in mirror

I've installed Mapserver and used a map file to set a raster layer and vector(shp) layers on top of it. However, although displayed in the expected order, the png file is displayed in mirror(compared ...
2
votes
5answers
320 views

Is latitude / longitude a universal coordinate system?

I hear people complain: my biggest gripe with google spatial apis is that they hide the fact that latitude/longitude is not a universal coord system My question is Is latitude / longitude a ...
1
vote
4answers
2k views

How to host my GeoServer+Openlayers web mapping application on the internet?

I have created a web mapping application prototype using GeoServer (running on Tomcat as the servlet), Openlayers and PostGIS. Since it was a prototype, at that time, i did not bother about the ...
1
vote
1answer
813 views

How to create shortest route and multiple routes service using openlayers?

I created a digital database of many important features and locations of my city. and I want to create a web application in which shortest distance between two locations can be calculated and ...
1
vote
2answers
443 views

Make Openlayers request WMS tiles only within a certain bounds

Is there a way to actually tell openLayers not to request tiles out of particular bounds? I want the rest of map and other layers still accessible, so maxExtent on map is not an option for me. I ...
1
vote
0answers
43 views

Looking for web-based mapping software recommendation [duplicate]

Possible Duplicate: Building a disconnected web based mapping application I am doing research for an upcoming project and I need help finding a good mapping software solution. Here are the ...
0
votes
1answer
105 views

How to host web map app on ArcGIS.com?

I have created a web map app on arcgis.com. I have installed ArcGIS 10.2 for Server, and created a services and published it on arcgis.com, but it is local server. I want to any one opening my web ...
0
votes
2answers
581 views

Is QGIS suitable to create maps with image popups?

I am a new user of QGIS and was wondering if I came across the right software to achieve my goal. Long story short, I am trying to create a map with markups of various buildings. Once I click on a ...
0
votes
2answers
1k views

GIS Web API - WFS-T Edit

My organization has a asset management application using Google Maps Java API as the GIS viewer. The application does some simple editing/querying on a kml file through html form elements. Instead ...