Questions tagged [web-mapping]

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

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1answer
834 views

ArcGIS Javascript API not loading portal web map

I'm trying to set up the web map example using our portal, but nothing is actually loading The web map is shared to public HTML Code : <!DOCTYPE html> <html> <head> <meta ...
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1answer
43 views

Tabular editing of feature layer in ArcGIS Online?

I have a point feature layer in AGOL that contains the locations, station names, and a bunch of other metadata attributes (when the site was created, whether or not it's active, etc.) Is there a good ...
0
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1answer
116 views

Publishing raster image as tiles?

I have a full world image (raster) that I would like to make available, such that I can use it with a leaflet.js based web page. I have looked at GeoServer and MapServer, but from what I can tell ...
1
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1answer
465 views

qgis2web Plugin Broken?

After the qgis2web plugin was upgraded last week the popup window shows all fields in the attribute table when you click on a feature regardless of which ones were selected in the dropdowns when ...
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2answers
1k views

Slow performance of WMS server

I have QGIS Map Server, when I load WMS layer it takes 20 seconds to prepare it and only 30ms to download. How can I speed it up? Can I do this without changing QGIS projects? How to do that?
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1answer
78 views

Route planning with detours for “nearby” Points of Interest

I want to know if Google maps, Open Streetmap, or some alternative, lets me plan a route by foot (or bicycle, maybe also car, or even public transportation, but by foot is my initial project) from ...
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1answer
112 views

Self-hosted web app to view raster & vector layers and annotate

I'm trying to find a self-hosted web app that allows you to view a number of raster and vector layers on a draggable web map, and then to 'annotate' the map by adding points to the map with associated ...
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1answer
273 views

CartoDB- popup window not working

I am working on a project, and I have not worked with cartodb long, but there is something wrong with this code. It is supposed to display a little pop window showing the school district for that ...
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1answer
630 views

Is there a stats dashboard on cartoDB (now carto)

I've been looking for an overview of map stats (how many views etc) on cartoDB (now carto). All I can find is the bar charts for each map in the gallery. Is there a page on the site that brings these ...
0
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1answer
958 views

leaflet: javascript scope issue within geojson onEachFeature function

I'm new to javascript and even newer to Leaflet (version 0.7.7), so I'm having difficulty determining how to ask this question. With leaflet, when I click on a polygon, an ajax request is made, it ...
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0answers
598 views

Leaflet map with 'query of features' on mouseover and multiple layers

I have produced two working Leaflet maps that in total contain the features that I need for my application. However, I cannot solve how to have multiple 'overlay' layers that can be queried with ...
3
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0answers
445 views

Using dynamic terrain in cesium?

I've been looking into tools for displaying dynamic terrain (x,y,z(t)) via the browser and I just recently came across cesium.js which looks like a wonderful tool at first glance. Many of the demos ...
2
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2answers
2k views

Leaflet filled contour map

I have evaluated the Getis-Ord Gi*-spatial statistic for each point in my map. Like this, each point is assigned a Gi-score and due to this a certain color, as you can see in the image below. What I ...
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1answer
24 views

How to create a web map which can't be traced back to yourself? [closed]

Hypothetically speaking (of course) say that you wanted to do a Wikileaks-style exposé of some spatial data, without it being traceable back to yourself. The data could be points, line and polygons (...
3
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1answer
122 views

How to Serve a Cached/Mixed Raster to Geocortex

I have never used a Cached/Mixed Raster format before, but I had these air photos given to me and I have to get them served up to our Geocortex App. I've been trying for weeks to covert it to a JPEG ...
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1answer
265 views

Seeking alternative to Collector for ArcGIS for creating new records in Related Table in ArcGIS Online?

I'm hosting a Web Mapping Application on ArcGIS Online. The design consists of two parts. A Feature Layer called Project Description which visualizes the location of every Project in my database A ...
0
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1answer
1k views

Create buffer around point with Turf

This code is not working and I don't know why? function getlatlong(b,d){ return b,d; } function buffer(feature){ var point = { type: 'Feature', geometry: { type: 'Point', ...
3
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1answer
1k views

Web app - how to replace ESRI branding with a custom graphic?

Alough there apears to be an easy way to remove the "Powered by ESRI" graphic in JSON I would like, rather than removing it, to substitute it with a custom PNG. When I set "Logo": false, in "...
1
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1answer
687 views

How to load 2 different WFS layers using OpenLayers?

I've been trying to load 2 WFS layers with the 3857 projection and I'm only able to load one of them, a line vector layer, while the other (point vector) doesn't load at all. Later I'm going to want ...
0
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1answer
227 views

Leaflet Map Layout

I have been learning how to use leaflet recently and have create a number of maps which have all been full screen maps. I would like to understand how I would place other features on a web page along ...
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0answers
115 views

Map library supporting linestring curve rendering to produce flow map

Is there some function/plugin for any javascript map library (OL, leaflet, ArcGIS API for JS) to render WFS or Geojson LineStrings not as simple line but as curves? I want to make mobility flow maps ...
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1answer
1k views

Editing WFS from GeoServer using OpenLayers

After reading a very good tutorial on how to edit WFS with OpenLayers, I've tried replicating it but with my own WFS layer from Geoserver. I managed to load the WFS and my basemap successfully and ...
2
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0answers
63 views

Adding 3D animation on site?

I'm trying to find how i could animate a map online with no result. I've an application that users can use to query place. The result include a map. All data are store locally on a server. Now i want ...
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0answers
89 views

Seeking marketplace intended to commercialize QGIS applications?

If we want to sell general application such as website theme, plugins, mobile app, game, etc, we can use envato marketplace, google play store, or other marketplaces for selling and buying application....
2
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1answer
246 views

Heavy load Map application. where to start? [closed]

I want to start building a quite big project that I have in mind that is 99% based on the world map. I have worked with Google maps in the past and know how to use their api and I have done some ...
3
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2answers
160 views

Building a web map with spatial search functionality

I have some population and thefts data as below: I am able to geocode these and build a map of county polygons in QGIS with the attributes attached. However, my final objective is to have a web map ...
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0answers
128 views

Is disabling CORS on map tiles service security risk?

I would like to know what security issues or security risk would prevent disabling Cross-Origin Resource Sharing (CORS) on map tiles service. Most of public tiles services, such OSM, Google, Bing or ...
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1answer
64 views

recommended hostings or web spaces for GIS functionality [closed]

I just want to develop a web site which will have a Map and a few layers, including some extra GIS functionality, based on OpenLayers (javascript). I only know about Amazon EC2 as a candidate for ...
0
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1answer
37 views

Resources for digitizing in webmap and export? [closed]

Its possible with Google Map API to draw geometries and points. And exporting as well I assume. Is there other alternatives, probably based on Java that can do the same job? I've been researching on ...
0
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1answer
2k views

Text + Chart inside pop up window in Javascript

A similar question had been posted in this thread : Chart inside pop up window in Javascript I'm trying to do the same, but i would like to add others things in the popup (like text, feature ...
3
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2answers
3k views

QGIS Desktop 2.12.3 WebApp Builder

I want to use the WebApp Builder in QGIS 2.12.3 But I can not find the QGIS Web App Builder in my QGIS version 2.12.3 Like this one: http://boundlessgeo.com/2015/06/building-openlayers-3-web-app-...
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2answers
297 views

Using pgsql2shp in server code with PostGIS installed on Amazon RDS instance

I've created a web application using the Meteor web framework, GeoServer and PostGIS. I've deployed my app on Amazon Web Services with the Meteor app and GeoServer running as 2 separate tasks on 1 EC2 ...
0
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1answer
260 views

Trouble getting leaflet-label plugin to work on geojson file

I cannot figure out how to get labels on my featureLayers to show in my LeafLet map for a mapbox featureLayer using the leaflet-label plugin. I thought all i needed to do was add .bindLabel('Look ...
0
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1answer
306 views

Change marker within leaflet map when loading data from geojson file

This section of code adds markers to my map (it works), how can I change the marker to a different icon when dealing with geojson? var cycleracks = $.getJSON('cycle-racks.geojson', function (geojson) ...
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2answers
216 views

HTML file not loading for CartoDB.js using Leaflet

I am trying to create a web map that uses a layer hosted on CartoDB and a basemap created in Mapbox studio. Never mind adding the basemap to the L.map, I cannot get the cartoDB layer to draw at all. ...
1
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1answer
62 views

Where to create a web map of polygons and 50,000+ points?

I was using the qgis2web plugin to create a web map of polygons. I got this far: vehiclethefts.netne.net Then, I had to add another layer containing 50,000 points and realized the plugin couldn't ...
0
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1answer
814 views

JSONs made from shapefiles are not plotting (using folium or Leaflet alone)

My goal is to plot two shapefiles as layers on an interactive map. The files I'm using live at https://github.com/AnnaMag/maps. I transformed shapefiles to .geojson using ogr2ogr -f ... e.g. ...
5
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2answers
663 views

Is it possible to 'scrape' shapefile layer from a map saved as pdf/jpeg?

Data on the changes in voting district delimitations in SA is available as a series of maps (no shapefiles made official). I'd like to create a shapefile by scraping the boundaries from the individual ...
2
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1answer
336 views

Easiest way to display or draw low-detail maps on a WebApp

I need to display data sets, e.g. a bunch of point-based JSON files of weather forecasts, on a not-so-detailed map. The map should not be as detailed as a full-blown Google map (with roads, names of ...
3
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2answers
1k views

How to rotate an embedded web map (on pc)?

I was looking through a couple of maps I made, the maps were created by serving VectorTiles through TileStache and using Leaflet and Tangram (on respective pages) to render them. One of the reasons I ...
3
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2answers
159 views

Location Analytics - ArcGIS Web Services (Feature & Raster)

I have been attempting to develop some methodology or approach in order to monitor or track where users of our web map services are looking. Ideally the coordinates of the window. Mapbox has created ...
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2answers
425 views

Pseudo code to correct Geographic points for UTM Easting distortion on Web Mercator Projection

I have chosen to use a Web Mercator projection system for: Use of Tiling system for low memory usage Accessing only one site/area at a time Reuse of Google Tiles - for many sites In some cases I ...
2
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1answer
48 views

Is it possible to pass a JavaScript object to “Layers:”?

I am trying to use the GetFeatureInfo functionality of Openlayers v3. I am taking the layer name dynamically from the layerswitcher and trying to pass it into WMS like: var temp=JSON.stringify(...
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0answers
107 views

Android WebMap Popup Viewing not showing my layer info

I used the code for WebMap Popup Viewing from ArcGIS for Developers (https://developers.arcgis.com/android/sample-code/webmap-popup-viewing/) and I just changed the map URL with a map I created and ...
2
votes
2answers
964 views

Set view does not work after Fitbounds

I have a map and a layergroup. var map = L.map('map').setView([27.6758,85.3313], 12); L.tileLayer('http://{s}.tile.cloudmade.com/8ae544230be74379927e6dee5d416398/997/256/{z}/{x}/{y}.png', {}).addTo(...
0
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1answer
726 views

creating a transparent layer background in QGIS

I have created a heatmap in QGIS to cover my point data and I have saved it as geoTiff so that I can import into tilemill, which I managed to do but my background is black .In QGIS however I want ...
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1answer
2k views

Leaflet/GeoJSON - Changing the default blue marker to other .png files

How can I use different .png files to symbolize my GeoJSON data? I have one property in my GeoJSON file that I would like to symbolize the data by (feature.properties.issue). For each different issue ...
2
votes
1answer
4k views

Leaflet Map not Visible

I try to make my first Leaflet webmap (I'm very new to JavaScript so please ignore the dirty & repetitive code). I want layer controls and read the Leaflet layer control example but somehow my map ...
2
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1answer
717 views

QGIS2Web - how to include additional mapping functions

It is my understanding that the QGIS2Web generates a web map from my QGIS project by taking aspects of layers, styles and extent. What would it take to include map functionality to the web map such ...
1
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1answer
117 views

Is there any possibility to draw an editable map using OSM data?

I am a newbie on openstreetmap related developments, I need to build a web application using PHP or Python frameworks, that could draw map using OSM data. It should also allows to edit attributes of ...