Hot answers tagged web
21
There are quite a few alternatives and I've actually written free ebook on the subject entitled "Online GIS - Meet the Cloud Publication Platforms that Will Revolutionize our Industry". You can download it for free at: www.onlinegis.com
Here's a tweet length summary of the products covered in the book:
ArcGIS Online: Comprehensive feature list. Jack of ...
8
I've had good luck using GeoCommons for more lightweight mapping.
The upside is that the service is free within a certain limit, and includes some fairly powerful analysis tools. I believe any mapping is free if using or creating open data, and while my organization did not end up paying for the service, the prices seemed reasonable.
I didn't realize until ...
8
You can use the Streetdirectory API
"The easiest way to start learning about the SD Maps API is to see a simple example. The following web page displays a map centered on Streetdirectory Singapore Office, 305 Alexandra Road, Vantage Automotive Centre, Singapore 159942: "
Simple Map
http://www.streetdirectory.com/api/developer/docs/examples/map-simple.html
...
5
You should use Geoserver WFS-T,WPS protocols and some client software like openlayers
http://openlayers.org/dev/examples/wfs-protocol-transactions.html
http://openlayers.org/dev/examples/wps.html
4
Agree with @iant. You are paying for hosting. With the free ones, you have to download the installer yourself and provide your own machine. With the site you linked, they provide the server.
The editions differ in the number of CPUs, RAM and backup storage available. You can view the differences by using their product comparison feature.
As for charging ...
4
why are all WFS and WPS still cgi based?
They are not.
HTML5Canvas or SVG can render the maps on the web.
Canvas and SVG are browser technologies for drawing. WFS and WPS are server protocols for retrieval and processing.
Non-cgi WFS/WPS: GeoServer, FeatureServer, ESRI tools, GeoTools. These are in Java, Python, and C++.
3
I would look into Cartaro, it appears to be based off of OpenLayers Editor by geOps.
I also just saw this OpenLayers WFS-T Using a GeoServer Hosted PostGIS Layer.
2
Are you using Esri software? If so, take a look at this question: Can I copy an entire geodatabase with relationship classes and domains and reproject all feature classes from wgs84 to state plane?? It's a similar situation, specifically, see of the link in my answer (http://gis.stackexchange.com/a/18108/653) which walks you through creating a replica ...
2
If you have some Satellite data, you could digitize off it directly in Qgis. If you don't have any satellite data, you could look into adding either the OSM layers, or the Bing maps layers (using the OpenLayers Plugin) and digitize using that.
2
If you can see the places you are interested in with Google earth you can see the coordinates of your mouse cursor in the information bar at the bottom of the window. In the image below my mouse was over the field in the upper middle portion and you can see the coordinates in teh lower right portion of the image.
If you don't have an excessively large ...
2
We are using two ways to improve that:
1. Instead of use picture symbols in mxd, you can publish the service without any simbology and then load a picture directly inside the javascript code
2. Use the 'cluster' functionality to group symbols depending on the scale
You can find a sample here:
...
2
The answer reside on the several sources. First you must create an html code to get the user location. It can be an html form/input (doc here). You can also use a locator (go here and choose locate) .
This location you store it in a OpenLayers.LonLat (doc here), and you use it to draw the point as an Openlayers.Marker (doc enter link description here).
Then ...
2
There are a lot of options. OpenLayers or Leaflet are probably a good place to start for the client side and they can read local shapefiles. For more options have a look at the OsGeo website (especially note the webmapping links on the right hand side).
2
OpenGeo Suite
You'll have similar web based map making & editing tools to Arcgis online with added flexibility.
The OpenGeo Suite Cloud Edition is a hosted version.
If you're comfortable running your own server you could also install the free and open source Community Edition.
1
An answer a bit generic without more details.
An introduction to GTFS to read
You also need to import GTFS in database
GTFS DB
gtfs SQL importer
For viewing, really depend but if no routing needed, just use you db to make SQL join from tables and export features to geojson (e.g PostGIS) if you need vector.
Consume this GeoJson with Leaflet or ...
1
Try the source directly from the git repo here of opentripplanner. I think it's somewhere in this file where they setup the map.
There you see:
initialize : function(config)
{
otp.configure(this, config);
this.map = otp.util.OpenLayersUtils.makeMap(this.mapDiv, this.options);
if (this.baseLayer == null)
{
this.baseLayer = ...
1
Perhaps your concern comes from the fact that CGI is an obsolete technology. However there are improvements like FastCGI or SCGI that work fine. First class HTTP servers like lighttpd or nginx can use these technologies for serving dynamic content.
I have set up WMS and WFS services with MapServer, lighttpd and FastCGI, and this combination has worked ...
1
The answer isn't as simple as that. There is an overhead to creating and drawing graphics. So if you have 50 points, then the overhead is much more than one polygon with 50 vertices.
Further more, some of the Web Mapping APIs (Unfortunately I don't know much about the Bing Ajax API, so I can't answer specifically about it) often apply some kind of ...
1
in my opinion you should consider change database to PostGIS. If I were you, (I guess only opensource software is in your range?) I would base application on geoserver http://geoserver.org/ it is very good geospatial server with nice GUI. You can connect it to PostgreSQL (PostGIS exactly). When you have these two, you can upload directly from shapefile data ...
1
I will try to answer to each question separately, starting from the development enviroment: I guess any IDE that supports php will work for PHP mapscript development. I can't suggest any because I don't use php, just google 'php ide'.
As for example sites I should point you to the two most popular Open Source web applications built with PHP/mapscript:
...
1
You mention lack of scaleability, coverage issues with satellite data and holes in data.
Satellite data (for the whole world) comes at a huge cost to acquire, and you want it for free? Something has to give. These are all issues not related to the map providers, they are satellite imagery provider specific.
You want free satellite imagery at good scale ...
Only top voted, non community-wiki answers of a minimum length are eligible
