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1 vote
2 answers
121 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/...
5 votes
2 answers
452 views

How can I setup a simple web mapping system?

I'm new to mapping and GIS and I'd like to setup a mapping system to display information on a map, I think the following could work but I'm not sure how good it is.. I store my data (lat, lng etc) on ...
1 vote
0 answers
110 views

CSS and border transparency around web map markers

The issue is that the image that I have in a web map visualizes map markers and place icons with white space around them. I checked this in the FireFox browser developer console and it seems to be an ...
18 votes
3 answers
2k views

How to improve cartographic visualization of overlapping polygons?

I need some advice about how to improve the visualization of cartographic information. User can select different species and the webmapping app shows its geographical distribution (polygonal degree ...
2 votes
0 answers
291 views

point in multiple polygons

I have a point (lat/lng) and a collection of geofences (polygons / circles / rectangles) Simply put, I want to know if the point is inside ANY of the geofences, it's not important which one. I know ...
6 votes
3 answers
963 views

Accessibility Mapping

The realm of cartography depicts many facets of the physical space within both urban and non urban settings. Specifically within the urban setting lies the challenge of navigating spaces such as ...
27 votes
7 answers
15k views

Examples of geovisualizations of global connectivity

I stumbled upon interesting visualization of global connectivity patterns: 'Major road and rail networks in Africa, along with transmission line and underwater cable data.' (Source, more ...
0 votes
1 answer
538 views

Build Interactive Web map for offline/localhost visualisation [duplicate]

I am part of a small research project where we are leading field experiments in a small watershed, on some remote location far away from our research institute. I have a series of vector data, ...
3 votes
1 answer
140 views

Customize search feature

I'm trying to create a map with CartoDB to show the spanish population between...at a municipality level. I can do everything perfectly, but I have just one problem: I would like to know if is ...
4 votes
1 answer
691 views

mapbox - disabling viewing of unrendered white tiles outside of the map

I'm looking to disable being able to move the map in such a way that one can move outside of the map area: I don't want to be able to see the surrounding white areas when the map is dragged. I have ...
0 votes
1 answer
585 views

Hover effects using CartoCSS: Is this possible?

I'm trying to make a simple map of parcels in TileMill. Right now when I hover over a parcel, the information for that parcel appears in a teaser. That's simple enough. However, when working with ...
3 votes
2 answers
267 views

What Type of map is this?

Looking to find the exact type of map that the following is : It looks like a hill-shaded topographic map, most likely DEM, but I'm not sure. I need to know for certain so i can contact the map ...
3 votes
2 answers
2k views

Breaking a range of values into buckets for a gradient

If I have a range of values and want to make a choropleth map with a gradient, what algorithms are out there to determine the value ranges for the different colors in the gradient? For example, if I ...
1 vote
0 answers
31 views

Creating Interactive Map Using Something Other Than Google? [duplicate]

I have a Roleplay Forum, and I would like to add a map of my Roleplay World to the website. I would like my map to be clickable, and have each location take you to a place on the forum. I don't know ...
2 votes
2 answers
120 views

Are CartoDB Map views by month or by year?

We have 10000 map views with the free version of CartoDB. Are they reset every month or is it the maximum views for the all utilisation ?
1 vote
0 answers
45 views

Is there an easy-to-install website plugin for territory routing?

For an application I'm creating, I want to be able to place dots on a map in locations that my users will be visiting. Each user will have his own locations he has to visit, so I'd like to 'connect ...
0 votes
1 answer
349 views

Map generation failing with Kartograph.js

I am trying to generate a very simple map using kartograph.js. But some how my code is not working. <html> <head> <script src="jquery-1.8.3.min.js"></script> <...
56 votes
4 answers
16k views

Why has Web Mercator (auxiliary sphere) become the web map standard?

I understand what the difference is between the Web Mercator projection and Web Mercator Auxiliary Sphere (WMAS). I also understand that both Google and Esri have adopted this projection as their ...
2 votes
1 answer
91 views

Is there demand for a service to publish web maps with lots of shapes? [closed]

Is anyone in the GIS community trying to publish choropleth web maps with a large (10s to 100s of thousands) number of polygons? and if so what's your current approach and what are the shortcomings of ...
4 votes
3 answers
508 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 legend,...
4 votes
0 answers
196 views

How to visualize fuzzy/approximate locations

I need to visualize a mixture of accurate and fuzzy/approximate locations on a web map. The user should be able to instantly recognize approximate locations from the marker used. Are there any best ...
6 votes
2 answers
2k views

What does Scale mean in the reference of Desktop GIS or WebGIS?

I'm having trouble understanding the meaning of the concept of scale when it comes to maps on screen, i.e. either in a Desktop GIS or in a WebMap. When it comes to paper maps, the idea is very clear. ...
16 votes
6 answers
2k views

What's the most promising application (use) of OpenStreetMap data? [closed]

In some areas OSM data is very complete and has a level of detail not seen in closed data sources. Another distinguishing factor is that it contains the knowledge of the people who live in that areas. ...
16 votes
3 answers
7k views

How to speed-up Dynamic Map services?

I am working on a ESRI Flex based application that will display data from a Dynamic Map Service. It need to be Dynamic, since the end user should have the option to turn on & off layers. This is ...
7 votes
2 answers
2k views

What are "M" point locations on the NOAA forcecast cone map?

I don't think I've ever noticed M before. H and S are Hurricane and Tropical Storm.