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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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0answers
15 views

Mapbox – how to create a web map of geotagged photos? [on hold]

I'm trying to create a simple interactive web map of a region using Mapbox GL, based on an existing Mapbox style I've built, which shows the locations of a large collection (100,000+) of geotagged ...
0
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1answer
17 views

Set extent in a webmap Esri

I'm creating a storymap from a developers tutorial I found on Esri. The point of the tutorial is to insert an additional reference map. Everything is working well but I want the extent to closely ...
1
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1answer
22 views

Mapserver not displaying a raster properly

I have a 32bit floating point raster containing only five values (-2, -1, 0, 1, 2 + -999000000 for noData don't ask me why, it was delivered to me), no compression, projected (EPSG:3857). I am using ...
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0answers
14 views

Merging points in Web Application? [closed]

It is a simple project with a Web App through which our customers will be able to pinpoint their address on a map. However, there is a problem. Many customers might put the point of their address on ...
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0answers
30 views

Webmap plugin in QGIS 2.18

I am having big trouble using the 'Webmap' plugin. It worked very beautifully until something happened with the encoding of characters. As of now QGIS just hangs up. This is the error message I get ...
1
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1answer
33 views

GDALWARP cuts off right edge of image?

I'm reprojecting GFS GRIB files to EPSG:3857 using gdalwarp. Resulting file get little bit shorter to the right so when I zoom in from zoom level 5 and higher, I can see vertical line with missing ...
2
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3answers
61 views

Using Wordpress with GIS? [closed]

I am building a community-run map of neighbourhood stories that should feature photos, text, audio and video recordings. Ideally, I hoped I could use a powerful and relatively user-friendly CMS like ...
-1
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0answers
39 views

How to get image boundary from .tif file?

I'm developing web portal for a farmer to monitor their farm. So far I have model to train the data taken from DJI drone. I wanted to make my web portal more visualized, and I have stitched the images ...
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1answer
15 views

How to create service url to get demographic data and then tie up the demographic data with zip code?

I want to create a Map tool like https://www.eddmexperts.com/eddm-map-tool. This site is using ArcGIS map service but I did not understand where I can get the service URL they are using to get ...
3
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1answer
23 views

Automating ArcGIS Online Shortlist Story Map description customization?

Is it possible to automate the descriptions under each image/event in the Shortlist Story Map? I want the word "Year:" to appear before every yyyy. I want this type of label and colon to be bold and ...
1
vote
1answer
34 views

How do you deploy a configurable application template for ArcGIS Online or Portal for ArcGIS?

I am trying to use a configurable application template, Interactive Filter (Live Example Here) to create an online map in ArcGIS Online to be shared with others. I want my users to be able to filter ...
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0answers
16 views

Develop ECW files overlay with Shapefile web application in Java?

I want to develop ECW files overlay with Shapefile web application in Java. Can any one please Help? I went through following link and its worked --> docs.geotools.org/latest/userguide/tutorial/...
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1answer
24 views

Congressional/Legislative Member Data Set [closed]

I am working on a web map of congressional and legislative districts. I am able to find the boundary lines but not up to date data on the representatives per legislative district. Anyone know of ...
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0answers
52 views

Extract PostGIS data using shapefile/GeoJSON in OpenLayers/Leaflet

I have a PostGIS database of large shapefiles and would want A Web-App be able to let the user upload the .shp file and extract data based on it's extent. I've used the OpenLayers library to ...
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0answers
43 views

Leaflet/CARTO.js: Emulate layer click (=open info window) after search & fitBounds?

I defined info windows with the CARTO.JS event "featureClicked" - unfortunately, this does not work after the user selects a layer in the search bar that is not part of the actual map. Any idea how ...
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1answer
19 views

Set border width and color in Mapbox GL

I'm working on an application based on Mapbox GL, I need to give to the user the opportunity to set the width and the color of the borders of polygons but I can't find the right GeoJSON proprieties to ...
1
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0answers
24 views

Pros and Cons on loading vector data from ESRI Shapefile and GeoServer using OpenLayers 5 [closed]

I am developing a web map application to show the vector data on top of OpenStreetMap using the open source technologies such as OpenLayers v5.2.0, but am a bit confused to take a decision in what ...
3
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1answer
260 views

How to display pie charts in a web map created using QGIS?

I have created a web map to show some sales information using QGIS with Leaflet library. I wonder if there is a way to show pie charts in the same web map as a separate layer? Although pie charts ...
0
votes
1answer
13 views

How to use CARTO map visualization in Odyssey.js sandbox

I have a story map in Odyssey's sandbox GUI. I want to use a visualization I have in CARTO as a base map for this map. How can I find my viz key? All the documentation seems to refer to an option that ...
4
votes
3answers
148 views

Find out ESRI REST URL for web map which is hiding it

I would like to extract the pipeline geometries from https://www.arcgis.com/home/webmap/viewer.html?webmap=a00c3b5cee4e4fe0b238b5e05ed80204 It shows the existing gas & oil pipelines crossing ...
0
votes
1answer
24 views

How to make line size scale dependent in OpenLayers webmap made using qgis2web?

I've made a map in QGIS v3.2 with a vector layer named "Roads." In QGIS, the line widths representing roads are set to "meters to scale." When viewed in QGIS, this behaves exactly as I want. When I ...
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0answers
29 views

Creating a point file and entering attribute data on Openlayers 3 interactively through the web interface

I was wondering if Openlayers(3) has the functionality to create an interactive point layer, where I could click to add points and enter text data, that would then be saved. The reason I ask is to ...
2
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2answers
50 views

AGOL tiling creates multiple labels

I create a webmap and use publish it on ArcGIS Online. Unfortunately the tiling engine of AGOL creates multiple labels for the same item. How can I prevent this? Same label problems occured, when I ...
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0answers
30 views

Automating Redshift data dump to a PostgreSQL DB every 12 hours

I have a redshift database that changes multiple times a day. I want to use this "live" data to make web maps and I have a Postgres DB where all my web-mapping data is stored. I want to continuously ...
2
votes
3answers
183 views

Adding a map from a website into QGIS

I need to add a historical map from a website into QGIS. I installed the QuickMapServices Plugin and I tried to make new XYZ connections, but nothing appeared. The website is: https://mapire.eu/en/...
1
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0answers
215 views

Show tooltip on the D3 map

I've created a basic map using D3 with countries GeoJSON. Here is the demo. Now when the user clicks on any coordinate on the map, I am showing a weather info within a tooltip with weather icon as a ...
0
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0answers
62 views

Combining python and JS (mapbox) for interactive rendering

I plan on visualising a huge dataset (probably around 20-30GB of data) using Mapbox in order to have a very nice map visualization. However I would like this visualization to be interactive and I am ...
0
votes
1answer
16 views

Carto zoom to areas in “link second layer”

I have a Carto map with two layers which I have linked using Carto's "Link Second Layer" analysis. I added a widget which lets me select the name of polygons and through this link, the map returns ...
0
votes
1answer
196 views

Uncaught TypeError: FeatureLayer is not a constructor

I am trying to test adding a clickable layer to a web app. I am just using a test layer from arcgis online rest services shown in a tutorial. When I try to add the layer using esri/FeatureLayer I, get ...
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0answers
37 views

Why 'Simple' example is not giving in Mapfish pdf report?

I am using windows. I installed tomcat 8.5. Then deployed print-servlet 3.9 war. There are some example print apps. I tried to print "Simple", but it didn't build any pdf report, gave some error ...
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0answers
147 views

Uncaught TypeError: L.GeoJSON.AJAX is not a constructor - Error in geodjango

I am following Wanjo Hikibui's excellent guide to GeoDjango At the end of part 5, I am getting the same error, but I don't know how to fix it, as the solution in the video was not sufficient, and it ...
0
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1answer
37 views

Responsive design of webmap

I created a web map with the qgis2web plugin. The map simply contains 2 polygon and 1 point layer. Since I just wanted a static map with these 3 layer I don´t use any basemap. The final map should be ...
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0answers
17 views

Expanding Layer List in Portal Web Application 10.4.1

Is there a way to expand the layer list in a Portal web app such that all layer categories are displayed without having to expand the list in the widget? Currently users must press an arrow icon on ...
0
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0answers
17 views

Using Geoserver and PostgreSQL to build a web mapping tool? [duplicate]

I've been an ESRI user and a Carto user and like both tools but I am now hoping to build my own web-mapping platform. The issue is, I have no web-development experience other than the little I've ...
1
vote
1answer
136 views

WFS filter for property name

I need help with WFS filtering for GML. I want to filter only by one property (name of administrative unit) - that is all. Lets say I would like to get the second member of this GML: http://services....
0
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0answers
26 views

How do we create a map like Google? [duplicate]

I am a student in math, so I don't know much about GIS and mapping. I want to create a map in detail (using for autopilot car for example) of my small village on my own, I mean from zero step by step ...
7
votes
1answer
948 views

Do Tile Servers typically store every tile for every zoom level?

As I understand, a basic tile server provides raster image tiles for different zoom levels. To cover the world, it requires 1 tile at zoom level 0, 4 at zoom level 1, 4n for zoom level n. These are ...
0
votes
1answer
215 views

Scraping data from ESRI ArcGIS web map

I am trying to scrape all school boundaries from this website. I want to download them in any geo-format, such as .geojson, .kml, or .shp I figured out that the school boundaries are rendered as <...
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votes
2answers
66 views

Scraping webmap to produce shapefiles?

Is it possible to scrape the basemap in this webmap (just the georeferenced boundaries) using any software? http://kslublris.com/LRIS/Kerala/district.php
0
votes
1answer
37 views

Creating a data layer on CARTO from an ical feed?

Has anyone ever made a map on CARTO from an ical feed? Given that it uses a standard format which includes a location information, I envision that I can scrape the data into a CSV then geocode the ...
0
votes
1answer
687 views

How to add text labels to a Mapbox GL JS map that has no vector layers?

Using http://bl.ocks.org/danswick/a4de5c170c04fdd38bb4 and https://www.mapbox.com/mapbox-gl-js/example/cluster/ I made a Mapbox GL JS map. It has no vector tiles basemap but raster tiles. It has ...
2
votes
0answers
78 views

Reproject vector layer in QGIS?

I want to warp a vector layer (set of polygons, but not a raster map) to fit a map. The problem is, the vector layer coordinates are from 0 to 360 and the basemap layer coordinates are from -180 to ...
0
votes
1answer
452 views

Mapbox GL JS set Max Zoom level not working?

I cant seem to get my map to set a max zoom level. Here is a snippit of my code - var map = new mapboxgl.Map({ container: 'map', style: 'mapbox://styles/cdickinson11/cjg49l1f305ou2rls3hd65a6s', ...
1
vote
1answer
2k views

How to add CSS styling in Mapbox GL Popup?

I am aware this is similar to many other questions, but I have been unable to determine how to add the correct code to style my popups in mapbox-gl. I'm very new to CSS, Mapbox-gl, and coding in ...
1
vote
1answer
53 views

How much resources/performance is used by each additional projection available for a WMS service? [closed]

The service provider set up the GetCapabilities response for the WMS service. This defines which projections are supported by the WMS service and these are also the projections that can be requested. ...
0
votes
0answers
19 views

Multidefine Error in dojo/parser.js

I have a web app that uses the ArcGIS JavaScript API. It has been working for a while now but suddenly today it started to throw multidefine and parser.parse in a function errors although no code ...
0
votes
0answers
272 views

draw path on indoor map using geoJSON avoiding obstacles

I'm a CS student and right now I'm developing an android app that uses google maps API, the problem is the map I'm working on is indoor and I'm facing problems when I want to draw a path from user ...
0
votes
0answers
31 views

Leaflet Library to add layer and Imagery from Supermap Iserver

I have questions for you, actually I'm trying to make simple webmap using Supermap iServer right now and having some difficulties. I'm kinda new in javascript programming too I have datasets consist ...
3
votes
1answer
60 views

Why is shapefile non recognised in the dataset?

Do CartoDB datasets accept .shp files for the geometry? I should use them to build a map but I can't do it. Can you help me?
1
vote
2answers
59 views

Where do map services get their town name data from? [closed]

Looking at several map services, they all contain the names of basically every place where several humans live. Cities and towns are quite easy to find, but they all contain townships/parishes/...