CartoDB is a cloud based mapping, analysis and visualization engine for mobile and web

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Automatically coloring a large number of polygons in CartoDB

I see that I can use the CartoDB wizard to color polygons I have based on a column value. This works great except that it only colors 6 or so polygons and the rest are lumped as “others”. I see that ...
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11 views

How to create a custom input text in a CartoDB

What is the best way to modify the searbox listener searchbox in the CartoDB map? I would like to disable the default event listener for the CartoDB searchbox and first to execute my own listener and ...
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1answer
11 views

Toggling Layers using CartoDB

Does anyone have ideas or know how one might be able to use CartoDB to create a map that one can toggle the individual features within a KML file, as currently happens on this map? I want my users ...
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19 views

Data dots aren't showing up (Cartodb)

If I connect to my campus network, the map is not showing any data dots. And from the screenshot you can see the error messages. If I use any other network, for example using my phone's hot spot ...
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6 views

How to include and format multiple rows in inforview from cartoDB

I have seen similar questions answered but I have not managed to find anything suitable. I have some buildings and when I click on a building I want the name and website of the companies in it. I ...
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1answer
19 views

Including chart based on fields in CartoDB infowindow?

I would like to make graphs, pie charts, etc based on fields in my table within my infowindows. Is there a way to accomplish this?
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1answer
22 views

How to use custom marker symbols in CartoDB?

I am new to CartoDB and haven't found a suitable answer to my search. I have a point layer uploaded to CartoDB and want to change the symbology to my own custom symbol - is this possible, and if so, ...
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1answer
17 views

Publishing a Visualization

After creating a Visualization I don't see the Publish button on the top right of the page, instead I see a Share button. Where is the Publish button?
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1answer
16 views

CartoDB only georeferences half of my table

I imported a CSV file into CartoDB, with over a million points, all with a clear (and correct) latitude and longitude. For many of the collected data points the georeference column says ‘null’, while ...
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6 views

CartoDB: Multiple Layers Legend override

I'm using Cartodb.js to add my cartodb layers in a web page. Currently I've two layers and both have legends. I'm using Cartodb.createlayer() function to add layers. The problem I'm facing is that the ...
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1answer
15 views

How to create multible labels non-ovelaped in CartoDB?

I'm trying to make a map poiting the cities I've visited for work, in each city I've visited more than one place. Those places are my labels, bur they are overlaped. If I choose label overlap = false, ...
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2answers
28 views

Is it valid to adjust quantile buckets to “nice” numbers for better readability?

I'm making a map about terrorist attacks and fatalities in CartoDB. For data clustering I'm using quantiles. The calculated buckets are 16, 32, 50, 97, 700. Is it okay to adjust the quantiles to make ...
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39 views

Merging multiple tables using SQL in CartoDB

I have 5 separate tables in CartoDB each with a varying number of columns, but all containing these 4 columns (the_geom, name, type, unit_code). I want to merge them all into 1 new table and get rid ...
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36 views

Waiting on AJAX result in main JS function

So .... my main init()Javascript function has these 3 lines: sarea = GetArea(Uname,UIDfield,Table, document.getElementById("Source").value); darea = GetArea(Uname,UIDfield,Table, ...
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2answers
23 views

Geocode not finding some locations

Most of my data is geocoding in cartodb except a handful. I've verified the location exists using google maps but it's still not coding it. For example, here's a location it's unable to code: 3641 ...
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1answer
35 views

PostGis - BBox -vs- ST_intersects Queries

CartoDb Recommend here that the following query is faster than an St_intersects Query SELECT * FROM {table_name} WHERE the_geom && ST_SetSRID(ST_MakeBox2D(ST_Point(-73.9980, 40.726), ...
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9 views

Missing points and points in wrong area [closed]

I am just starting with CartoDB. I am using city name (excel document) to plot points and although it gives me a geo for all cities, some points are not in the right state and others are missing all ...
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30 views

CartoDB Torque script causing JQuery UI conflict

I am using the torque library hosted here: https://github.com/CartoDB/torque I am using it in a viz.json-based visualization (so the torque layer is defined in the cartodb web console.) When I try to ...
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1answer
18 views

Legends in CartoDB - Appearing in Map Editor but not in Shared Maps

I have created a couple of maps in CartoDB and while the legends display when I am editting the map - they will not display when I share the maps. Any idea why this might happen and what I can do to ...
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1answer
23 views

CartoDB problem with layers and infowindow display

I hope someone has had the same problem and can help me out. I just started testing and using CartoDB, and I am dealing with this problem on a map that has been published already: ...
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1answer
19 views

Select Polygon Intersections Between Two Tables With No Common Key

I am new to geodatabase queries and cartodb. I am trying to write a SELECT query that will do the following. I have two tables. Table 1 contains congressional district polygons and info about ...
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27 views

How to find georeferencing of the US base in Guantanamo?

Good Morning I make my first steps on cartoDB. I would like to assign data to the US enclave at Guantanamo on Cuba island. And I can't. Yet carto DB base map shows the enclave. if anyone has any ...
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1answer
36 views

CartoDB SQL and returning values

Right I've got this JS function function AreaCompare(sql, UIDfield, Geogname, Table, sourceName, sourceID, destName, destID){ CompareObj = {}; CompareObj.sName = sourceName; ...
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1answer
20 views

carto db torque slider change color, font

for a theatre project im trying to make a visualization about protests in the last decade. I managed somehow to do that but unfortunately the default time-slider of carted is really small and not ...
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1answer
52 views

How do I sum values that are geographically close to each other?

I have a dataset of Boko Harams rampage in Nigeria uploaded to CartoDB. I have columns like coordinates, dates, number of victims. Would it be possible to write a query that would sum the victims ...
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34 views

Get basic image/utf grid tile URLs from CartoDB visualization?

I'd like to add the layers from a CartoDB visualization to a Leaflet map directly (NOT through CartoDB.js). My visualization has one image tile layer generated from data, and one utf grid tile layer ...
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1answer
36 views

How to map places with zip codes that have leading zeros using CartoDB?

I have a large set of data that has several places on the East coast that have leading Zeros in the Zip. How do I map these when leading zeros are automatically removed?
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38 views

The ordering of layers with CartoDB/Leaflet

Just want to get a bit of clarity about this query from before: Layer order in CartoDB I have a map with a Basemap and I want to draw points between features based on layer featureclicks, The good ...
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39 views

CartoDB layer selector - selecting data from 2 layers

I used the CartoDB layer selector example (http://cartodb.github.io/cartodb.js/examples/layer_selector.html) with my data. Works fine. Now, what I really want to do is to select data from 2 layers at ...
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139 views

Show change in size over time

I'm a linguist, not a geographer, and a first-time poster here. I have some data about the use of a particular phrase in England between the years of 1225 and 1500. I have geolocations for the places ...
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2answers
37 views

Link to another table in CartoDB infowindow

I have two layers in CartoDB, one with spatial data, school_count, and one without, heisman_winners. I want to visualize my spatial layer but when a user clicks on a feature I want it to display data ...
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2answers
70 views

Create a layer selector when making a map at runtime for CartoDB

Using the same theory to create a search box at runtime, (such as here), I wrote this code: var l = cdb.vis.Overlay.create('layer_selector', map.viz, {}) l.show(); $('#map').append(l.render().el); ...
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28 views

CartoDB - Method to show/hide layers for hatching overlap for > 4 layers?

Our goal is to show/hide individual hatched maps. Unfortunately we have more than the 4 max layers allowed in a viz. We successfully made and example where we show/hide the 4 layers in a viz: ...
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1answer
41 views

SQL query as part of featureClick in CartoDB.js

I am a complete novice at both Javascript and SQL so am learning as I'm going with this! I have made a webpage that shows a map with a layer of points on the left hand side of the page. What I want ...
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1answer
28 views

Changing cartodb.createLayer source

I'm applying a Carto named map layer to an existing Leaflet map similar to: cartodb.createLayer(map,{ type: 'namedmap', user_name: **username**, options: { ...
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28 views

ERROR IN sudo PGUSER=postgres make installcheck step

I am trying to setup cartodb on Ubuntu 14.04. I installed all the dependencies & requirements. Postgres 9.3 and postgis 2.0 are also installed. Whenever I try to execute following Steps : ...
2
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1answer
44 views

Viz.json-based map will not show Line polygons

We are using a visualization and I importing it via a cartodb.createVisualization. Most of the tables work fine and the whole visualization works within the web console. However, we have one table ...
2
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1answer
32 views

Is there a way in Cartodb.js to include an autcomplete search bar?

I am using the code below to add a search bar to my mapping application, is there a way to include an autocomplete search bar? Something that would provide suggestions based on what the user is ...
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1answer
36 views

Is there a way to customize the zoom button and legend in cartodb js?

I am following this tutorial, http://docs.cartodb.com/tutorials/toggle_map_view.html, and have been successful in developing an application with similar functionality, currently I am working on ...
2
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1answer
56 views

Merge polygons in CartoDB?

I created this map in cartodb: http://cdb.io/1xBj4Xo Now I have to merge some of the districts to a bigger district. Is it possible to do this in Cartodb? Using a SQL query for instance? I can also ...
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1answer
31 views

CartoDB: Adding another view of layer using Layer Actions and Toggle Buttons

I would like to add multiple sublayers of the same table attached to a single layeraction in cartodb js. I written my webpage based on the following cartodb tutorial: ...
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2answers
60 views

Writing tests for cartodb

I am using cartodb.js to import one of our maps via cartodb.createVis. I am working on adding custom functionality outside the scope of the web console's customizations (for example, custom search ...
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1answer
31 views

CartoDB - How do you do a line fill of polygons in CartoDB?

I would like to show overlaping layers with hash marks, is this possible by editing the css in some way?
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3answers
58 views

how to enable interactivity on named map in cartodb

I have created a named map that gets data from a private table. I can load it into a Leaflet map and can change its marker-fill color placeholder using layer.setParams. However, I cannot get ...
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1answer
46 views

CartoDB - can we overlay 2 visualizations

Suppose we make two map visualizations from a loaded polygon shapefile in the CartoDB free online system. Could we overlay these 2 maps on top of each other in a web page using the CartoDB.js API? ...
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1answer
47 views

Unable to integrate CartoDB into Leaflet Map

This is my first day with CartoDB, trying to integrate our visualization into our existing Leaflet implementation, and having issues. In short: no visualization. Below is a sample of the problem ...
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43 views

How to use cartodb.js to create layer - not just tilelayer - from named map

This gis.stackexchange question asks how a layer can be displayed after initializing a named map. I don't have enough reputation to ask a follow-up comment to javisantana's response. It reads in ...
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1answer
53 views

CartoDB 2.0 Virtual Machine for AWS/RDS

I'm not a "linux" person I find it very difficult to install in my virtual machine. I know there has been a V1 AWS VM created earlier. Has anyone got any VM I can play with using version 2.0 of ...
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1answer
38 views

What is the file upload limit on CartoDB?

We have a CartoDB Coronelli account with 300MB of spare space. I need to get a shapefile loaded that is 85MB in its .zip package. The file is sitting in a publicly accessible dropbox. 1: When I try ...
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65 views

Layers Question

I'm currently mapping with a free account on CartoDB but I've run into a roadblock. I need to add multiple visualization layers onto my map but the free account limits me to merely four. Is there any ...