Questions tagged [web-gis]

Web GIS is a generic term which should ONLY be applied when no specific web GIS product is identifiable

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11
votes
3answers
6k views

Editing PostGIS/GeoServer data via web?

I've got PostGIS installed and would like to create a web application to do some simple edits: Draw manually (over a Basemap) points, lines and polylines, using snapping points (points, end of lines,...
10
votes
1answer
2k views

Alternatives to Ushahidi for Crowdsourcing? [duplicate]

We all know that Ushahidi offers a versatile solution for crowdsourcing information and its effective depiction in maps. I am interested to know if there is any application(free and open source) on ...
9
votes
3answers
1k views

Performing raster map algebra in open source web GIS?

Map algebra for raster is easy with ArcGIS Raster Calculator (or QGIS). I had thought this would be easy with web GIS servers such as GeoServer and MapServer plus OpenLayers etc. as well. What I want ...
7
votes
5answers
11k views

Seeking free web GIS browser?

I have created several projects for several different clients. Each project has OS maps, shapefile layers from Government Bodies, Shapefile layers created, AutoCAD dxf loaded in (in various manners). ...
7
votes
4answers
287 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 ...
6
votes
4answers
2k views

Choosing technology to start Web GIS development? [duplicate]

I am very new to GIS development, and to be be frank I have no background about it at all. I searched the web but the tutorials I found seemed to assume the reader has some background information. ...
6
votes
3answers
2k views

Building cartograms using Web GIS?

I would like to build a cartogram map using Web GIS. I have a basemap and a set of raw data in excel. I wondered what are the steps to build up a cartogram map using Web GIS? Note: Originally ...
5
votes
7answers
13k views

How to get started on web GIS development with Java? [closed]

I am very new for GIS, I know java web development. I want to develop a GIS web application in Struts, can you suggest me how to start? My requirement are as - Any API/Tool should be open source. ...
5
votes
3answers
5k views

What is Geonode ? What all can be achieved using it?

Ok i have searched the site and did not find enough information concerning regarding what is a Geonode so i really thought i may ask everyone who has used it to give their opinion. I am trying to set ...
5
votes
1answer
2k views

Creating local web GIS server using Node.js [closed]

This is a question related to OpenLayers/jQuery without CDN?. I was looking to copy a minimal set of files on js/css files to replace online CDNs, so that I can run a test server on localhost without ...
5
votes
1answer
2k views

Geotagged tweets and Twitter API

When I do a timeline query using the Twitter API, http://api.twitter.com/1/statuses/user_timeline.xml?screen_name=MyTwitterName the geographic component of the reply looks like this: <geo>&...
4
votes
2answers
214 views

What type of data is being provided and how to process it?

I want to export parcells from a turkish website (https://parselsorgu.tkgm.gov.tr/) to process them in my local GIS. When I press the "download coordinates" (Koordinat İndir) button, I receive the ...
4
votes
1answer
3k views

How to get the legends from geoserver

I am using geoserver 2.5.5. I have to get the legends of each category from different link. Now geoserver gives whole legend as a PNG image format using this link http://localhost:8080/geoserver/wms?...
4
votes
1answer
564 views

Leaflet geojson styling leaves gaps between polygon

I'm styling a geojson polygon composed of multiple closely placed vertical segements which doesnot have a gap in between (i've checked the topology). I want to display just the fill and without stroke....
4
votes
0answers
99 views

Raster calculator using django

I want to create a web application that takes in 5 images does some calculation and shows the result on a basemap. all these images would be on geotif format single band and with values on pixels, I ...
3
votes
1answer
3k views

How do I make custom icon in leaflet depending on attribute and after filter

I'm writting a leaflet webpage with inspiration from this: http://labs.easyblog.it/maps/leaflet-panel-layers/examples/custom-item.html I have my data from Geoserver (geojson) and it getting the ...
3
votes
1answer
266 views

Seeking software for Web GIS? [closed]

I run large site focused on history. Our current project expects the use of maps (for simplicity, we use current maps, not historical) with quite many points (custom SVG markers), lines, polygons on ...
2
votes
4answers
491 views

Crowdsourcing points by on-click to web map with moderation?

I want to build a really lightweight web map interface where a user can click anywhere on a map, create a point, type in a comment -- ideally all via Facebook, but I don't want to get ahead of myself -...
2
votes
2answers
132 views

Creating Multiple Webmap Applications linked to the same data

I am creating a webgis system for a smaller municipality. They need 3 different webmap applications, all of them referencing the same data. 2 of the apps are for public view and only contain certain ...
2
votes
1answer
548 views

Is CartoDB a CMS for maps?

I test cartodb with some data and I found it very useful. I found this instructions for installing cartodb locally in github What is CartoDB? and I try to understand if cartodb is a CMS for maps. Is ...
2
votes
1answer
695 views

Differences between CKAN and GeoNode in spatial data infrastructures

We are planning to develop a spatial data infrastructure with some webGIS tools integrated. It would serve much vector and satellite data in numerous users. Until now, we are planning to create a ...
2
votes
3answers
180 views

Raster symbolization in open source web gis? [closed]

We would like to build a simple web map application that displays raster data (e.g. a digital surface model) and symbolizes values (e.g. height) using a color ramp. Is it possible to have the user ...
2
votes
0answers
286 views

Filter function based on attribute. Leaflet

Im trying to create a webmap based on Leaflet - google spreedsheets example I have a a "group" layer with three diferent group names. I have added some easy buttons to click the layers on and off, ...
2
votes
0answers
31 views

Points to Polygon in OpenLayers [closed]

Is there a method to join points together to create a polygon in OpenLayers or other WebGIS platforms? I have been searching for some while and I have found that dropzone.js can allow me to upload ...
2
votes
0answers
148 views

SLD for dot density [closed]

I am trying to find, or get help creating, an SLD to render dot density symbolization for a polygon shapefile for an online GIS display - in this case WorldMap. The dataset is county level US Census ...
2
votes
0answers
179 views

WebGIS: Adding a GeoCoder to Template

I need an step-by-step Introduction to build in an GeoCoder by ESRI. I have downloaded the Story Map - Text and Legend - Template and now I am trying to build in a simple geocoder Services. But ...
1
vote
1answer
184 views

GeoServer GeoWebCache caching wrong resolution tiles from USGS WMS

I have a simple OpenLayers 3 map with a topo layer that is cascaded from a USGS WMS through my GeoServer / GeoWebCache system. The tile zoom level resolution is correct when the GeoWebCache is turned ...
1
vote
1answer
379 views

Determining the problem with an WMS layer in Geoserver

I would like to ask a question as I'm having an issue here which I cannot really determine what is the actual problem. Is it that having more styles per layer is not really possible or could it be ...
1
vote
1answer
612 views

Is Geoserver mandatory for developing GIS web application in Java using Ol4JSF in NetBeans IDE?

I am developing a GIS web application which involves querying and creating map layers dynamically (like page getting refreshed for every 5 minutes) and also static querying etc... This application ...
1
vote
1answer
237 views

What web GIS is this? (And how can you tell?)

I'm trying to understand a site that serves maps using a URL like this (URL de-coded): http://www.bom.gov.au/jsp/weave/server/request/execute.do? crs=EPSG:3112& mapengine.id=mapengine.ngis& ...
1
vote
1answer
169 views

Title position in qgis2web

I try to change the position of the title created by qgis2web to the top left above the zoom control. Right now it is always displayed on the top right side. And is it somehow possible to make these ...
1
vote
1answer
559 views

Web application with QGIS [closed]

I am using QGIS to create maps using CSV files. I want to create a web application where the base map would be first displayed. I want the users to have dropdowns lists which would be populated with ...
1
vote
1answer
66 views

How to Convert Just a Sulawesi Map to Leaflet

I'm still develop a Web GIS that show population distribution in form of heat map. I'm use Quantum GIS with Open Street Map & Q2Leaflet Plugin as a tool to accomplish it. The problem is, I just ...
1
vote
1answer
211 views

How to export georeferenced Raster layer using QGIS2Leaf Plugin?

I got excellent results while exporting vector layer with styling through qgis2leaf plugin. Whereas when I try to do the same with a geo-referenced raster file (geotiff) which has a projection of EPSG:...
1
vote
0answers
31 views

Finding data on how users interact with web GIS?

I’m developing a geospatial data viewer that connects to various services (WMS, WMTS). I have a server that clients connect to. When a client makes a request, I cache it on the server. However, I ...
1
vote
0answers
64 views

MapProxy - Is it possible to get uniform WMS GetfeatureInfo info_format?

This is my very first mapproxy tagged question, so I hope it makes sense. I am developing a WebGIS client in my spare time, and now I am mainly focusing on my first type of OGC service: WMS. ...
1
vote
2answers
292 views

Insert WMS layer into a WebGIS with qgis2web

I created a small webgis with the plugin qgis2web. I also added a wms layer but when I go to view the webgis, this layer is not displayed, why? I would like to insert this WMS layer: http://rsdi....
1
vote
1answer
161 views

Uploading finished model to WebGIS?

A thing bugging me at the moment is the lack of information on the possibility of finishing a point cloud based 3D model in a desktop software(e.g. Solidworks, Geomagic Design), exporting it in a ...
1
vote
0answers
48 views

What are some affordable hosting services for a webgis using? [closed]

A friend and I have been building, for the first time, a webgis that enables queries and visualizations of data. Our work looks a bit like this: http://www.communityindicators.net.au/files/SingleMap/...
1
vote
0answers
300 views

How to set Persian charset in shapefile generated from GeoServer?

I have a .NET based web-gis application, and in that application different users update layers (layers information are stored in SQL server). When I generate shapefile from that layer in GeoServer ...
1
vote
0answers
29 views

Connect and modify map through localhost in ubuntu (content management system) [closed]

How can i set cartaro in linux,facing problem with installation instruction given on site.
1
vote
0answers
399 views

web based GIS geoprocessing vs desktop based GIS geoprocessing [closed]

difference between the WEB and DESKTOP GIS geoprocessing (buffer) what is the main difference in the area of processing speed or retrival speed of output take in case of contour generation from DEM , ...
1
vote
0answers
208 views

Implement a least cost path in a graph

I am trying to produce a routing functionality in a web-GIS that, given a start and an end point, will retrieve the least cost path taking into account points along edges representing major costs, ...
0
votes
3answers
121 views

Seeking Web based GIS for viewing only without need to install client side apps? [closed]

First of all I am new to GIS, I have used ArcGIS and QGIS for some basic engineering projects. Mainly I have looked for freely available GIS data online (solar radiation), downloaded the data, ...
0
votes
1answer
804 views

Getting the childcount in leaflet markercluster

I have created a custom icon for clustering my data, using leaflet markercluster. As default markercluster have the "childcount" in the icon. How can i put that number in my divicon? var markers = L....
0
votes
1answer
187 views

Geoform for points, lines and polygons in QGIS environment

I've been asked to look for an attractive way to collect information from children and young adults about the routes they are using to go to school, sports club, etc., as well as the points on the ...
0
votes
0answers
47 views

pgRouting plugin error [closed]

I have used osm2po to create routing data after load the data to database(postgresql) then from it to QGis.when using the pgrouting plugin the error appears: 2019-05-16T12:43:17 WARNING ...
0
votes
0answers
215 views

How to install QGIS-Server and QGIS Web Client

I am trying to install QGIS-Server and the Web Client 2 on Windows 8, but I have no clue how to do it. I have experience with QGIS, Arcgis, Python but no experience with creating a webgis. Till now i ...
0
votes
0answers
88 views

How to understand the which GIS server is used?

I want to understand how I can learn the GIS server type of a certain link. In instance I want to know which type of server is being used for http://barajlar.dsi.gov.tr/ web site. Related server ...
0
votes
1answer
155 views

Participative maps for collecting geographic information? [duplicate]

I'm looking for a simple way to collect information for a participative plans (regarding landscape) and show them on Google Maps. I'm thinking to a small web form for asking information to public (es:...