CartoCSS is a CSS-like language used in TileMill and Mapbox Studio Classic to style features.

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15 views

Create Choropleth Style Map in CartoDB programmatically

I am trying to create a choropleth map for a school project I am working on. Based off user input, I will create a csv file that I will then upload to CartoDB using their Import API. By setting the ...
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22 views

Transform scale of polygon pattern fills with Carto/Mapnik

In CartoCSS you can specify an SVG pattern fill for a polygon as so: #layer { polygon-pattern-file: url(images/fill.svg); } However, the size of the fill is too big at small scales and too ...
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23 views

CartoDB - random points being added to map

I'm working on a tool that allows users to draw geometries on a Leaflet map, which are then sent to CartoDB. However, I've noticed an odd behavior... after a polygon has been added, a varying number ...
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248 views

How to I cluster by features in CartoDB?

I have a set of points for a number of buildings in NYC. I would like to group those points into clusters per their respective neighborhood (ex: Chelsea, Upper East Side etc.). Each of my points have ...
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6 views

How might I change the symbology of a certain points in a layer based on an SQL statement?

I have been playing with toggling layers in CartoDB--pressing buttons and changing the subset of the data being displayed. Now I want to do something a little different. Rather than change the entire ...
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43 views

How to turn off caching of fill patterns in TileMill?

I'm using CartoCSS in TileMill and png files on disk for filling polygon symbols with patterns. polygon-pattern-file: url('sprites/yard.png'); The display is ok the first time, but when I change the ...
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2answers
111 views

How to generate 512x512 map tiles (2x resolution for retina displays)

I'm looking for a method to produce 512x512 pixels map tiles using CartoCSS and Mapnik, for example exactly as CardoDB does for its base maps (here below a 256x256 map tile vs its correspondent ...
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17 views

Can I have two variables in CartoCSS?

Within CartoDB my CartoCSS looks something like #table_copy_1 [ lease_rate <= 55.15] { marker-width: 35.0; marker-fill: #081B47 } Can I add another variable (size) so that the display ...
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411 views

Error while building OSMBright

Error while building OSMBright when i run the make.py the following error is coming Traceback (most recent call last): File "./make.py", line 123, in <module> build() File ...
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401 views

How do I make my Cartodb info windows wider?

According to my read of andrewxhill (more readable version) I should be able to change the info window size by adding CSS, like so: <div class="cartodb-popup header with-image" ...
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14 views

CartoCSS: labels below road when road east-west

In styling major road text labels along paths, I am attempting to force the labels beneath the road path, especially for roads with east-west direction (i.e., horizontal). My application of text-dy ...
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33 views

Creating a runtime visualization with CartoDb

I am trying to create a runtime visualization for a CartoDB map and I am quite the trouble with doing it. I have gone over the documentation and cannot get the code to work correctly at all unless it ...
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19 views

Creating conditional style using CartoCSS on a CartoDB view

I’m generating a view using the query like this in CartoDB SELECT table1.cartodb_id, table2.data_count, table2.event, table1.the_geom_webmercator FROM table1 JOIN table2 ON ...
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1answer
77 views

What do cartocss attachments along filters mean?

I'm exploring openstreetmap-carto style and I wonder what does such syntax mean: [natural = 'water']::natural, [landuse = 'reservoir']::landuse, [waterway = 'riverbank']::waterway Is this ...
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1answer
35 views

Why are point-files cut at tiles-borders?

I'm placing a SVG in Tilemill via a point with lat and long. So far that works great but when the tile the point is located in ends, the image is not rendered. Is this a bug? Can I do something ...
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15 views

Show one label per shape in CartoCSS

I'm working in Mapbox Studio (Classic) and want to prevent labels from rendering more than once. I'm using text-repeat-distance to prevent labels from showing more than once: #Admin_level3_Boundary ...
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1answer
32 views

What's the meaning of marker-fill-opacity: 0.1*[value]?

I'm using heatmaps in CartoDB and I would like to modify CartoCSS to reflect the value of a column. I have noticed this line in CartoCSS: marker-fill-opacity: 0.1*[value]; I don't understand ...
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42 views

Can you use variables in URI field in cartodb CSS?

I am wanting to use a different marker-file based on a value returned via SQL in cartodb. I am wanting todo something like marker-file: url('[icon]'); Where the value in [icon] is a full URL to a ...
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211 views

Placing label on map once in TileMill?

I am trying to create a basemap in tilemill. Very new to this software. When I add the label styling for the roads, it adds the name several times. Is there a way to have it only place the label on ...
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248 views

How to render tm2 projects

What are the options for rendering tm2 projects? As far as I know the open source Mapbox tm2 projects have proprietary data sources (like OSM Bright 2), thus they are of little use, but some other ...
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12 views

CartoCSS: alpha blending with comp-op

Using CartoCSS/Tilemill, I have one layer for the land polygons and one for urban areas, as follows: #zoomed-polygons[zoom>7] { polygon-fill: white; } #urban[zoom>=4] { polygon-fill: ...
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44 views

Adding a border on hover to a CartoDB map

I have created a map of pedestrian collisions in Toronto in CartoDB. I would like the border of each neighbourhood to be outlined in a dark colour on hover. Is it possible to modify the CSS to achieve ...
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42 views

Cartodb: Linking social data to road color scheme

I am recreating this "smelly maps" project on cartodb. I'd like to create symbology on roads (IE: color roads red,blue,green,yellow) based on the information I am receiving on social media. View ...
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29 views

TileMill : set minzoom to layers?

i found in this post: CartoCSS layer visibility a solution to set a layer not visible for some zoom levels. But in https://github.com/gravitystorm/openstreetmap-carto it seems that a minzoom ...
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32 views

CartoDB – How can I place labels from one layer on top of an overlapping layer?

I have two overlapping polygon layers and I'd like to display the labels from the bottom layer on top of both layers so they're easily visible. Is there a way to do this with CartoCSS? Some sort of ...
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45 views

Tilemill/openstreetmap-carto, how to remove unwanted road lines

I am using Tilemill and the openstreetmap-carto style. The latest versions of each. I was curious to why these Center-lines are showing up in my highways and roads, and I am unable to get rid of them. ...
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52 views

CSS Styling Torque in CartoDB

I am trying to make a map that would show the total load of a bus. I have plotted the route and set up the time constraints. The ellipse is moving and seems to work fine, but when I try to style the ...
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2answers
258 views

Bring marker on same layer to front in CartoDB

I'm using a category map showing markers based on the value of one column. They can be one of two values. One is for customer location and the other for store location. I'd like to have it so that ...
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16 views

Thousands separator for numeric value labels with CartoCSS

Is there any way to style labels with a thousands separator in CartoCSS without re-creating the column as a string?
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738 views

Converting from SLD to Carto CSS?

I have a bunch of layers and corresponding SLD's running a WMS service. I was exploring the possibility of shifting to a TileMill's tile based TMS service. For this, I would like if it were possible ...
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62 views

Cartodb map style changes when clearing view

I'm losing the custom settings of my map when I perform simple filtering analysis and "Create Dataset from Query". Here's what I'm doing: I've created a map where I've specified my color scheme, ...
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2answers
310 views

How to style ways with CartoCSS depending on a relation property (OSM)

I'm using CartoCSS together with an OSM Postgres DB (hstore on). I want to set the line color depending on the operator tag of relations (routes). How can I do that? Update Thanks to Paul Norman for ...
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62 views

Marker line in CartoCSS

I'm trying to symbolize a line layer in CartoDB using CartoCSS. I need my line to be a series of diagonal lines, something like this -> ///////////// In QGIS I would do this as a marker line with a ...
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3answers
119 views

Is there a way to add a 'home extent' to a cartodb map?

Within the zoom bar, is there a way to include a home extent button that the user could click to zoom to the same extent as the initial extent of the map?
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137 views

Flow direction CartoCSS

I'm working on a TileMill project essentially displaying freight routes. The original shapefile contains a origin city and a destination city (and a path between both cities). When I apply a ...
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2answers
79 views

Mapbox Natural earth map disappears on zooms 0 & 1

As the title says, I'm currently using mapbox to create a little atlas app the issue is whenever I zoom out to anything lower than zoom level 2, the map dissappears with the map background being the ...
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10 views

Raster layer underneath others

I have a TileMill project going. It's my first one ever. I have a raster layer in my map which I got from here. Unfortunately, it covers/hides all my labels. Is it possible to order layers? So that ...
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31 views

Mapbox Cartocss: Associating field values to building-fill fails to apply

I have uploaded a shapefile with buildings with a field names [height] and [color], values stored are for height 1 to 4 and for color 1 to 10. I want to color based on that colors, code starts ...
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1answer
234 views

osm2pgsql vs imposm rendering performance

Is there any difference in rendering performance between using a osm2pgsql vs imposm imported PostGIS DB in Mapnik? Or asking it differently, is there any downside of using imposm if I only want to ...
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36 views

Tilemill styling with openstreetmap data - labeling boundaries

I have UK county boundaries (boundary=ceremonial) and want to give them labels that periodically run along the boundaries on the inside of the county. Just like polygon shapes do - eg, you can give a ...
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16 views

How to allow-text-overlap for one layer in Tilemill

I have a map that displays Countour-Lines including height labels. Those labels should be treaded as "background". So f.e. a village label should appear on top of on of those labels. If I set the flag ...
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12 views

How to align text in the middle of an object with CartoCSS

How do I show up a text only once and center it in the middle of the object (in this case building) using CartoCSS? Here in the image you can see that the text "Terminal 1" shows up multiple times.
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69 views

CartoDB toggle buttons not working with my data?

We are taking CartoDB data for this Canadian election map -- http://cdb.io/1TabLyz -- to create a version that adds toggle buttons to filter by political party. However, the buttons only work ...
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1answer
986 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
112 views

How to alter labels in Mapbox Streets in Mapbox Studio

I am creating vector tiles in Mapbox Studio v5 based off of the MapBox Streets layer. I want to alter the labels that appear over buildings, parks, schools, churches etc. but I cannot find the code ...
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1answer
155 views

CartoCSS: labels along inside of polygon boundary

I'm using CartoCSS to render maps that include large polygons (like national parks). At higher zoom levels I want labels along the inside of the polygon boundaries, like in OpenStreetMap: I ...
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217 views

What is the future of CartoCSS (i.e. does it have one)? [closed]

MapBox recently announced that they would be moving away from CartoCSS towards a completely visual interface. Apparently the new style sheets that underlay that UI will be JSON based, so despite the ...
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89 views

CartoCSS: building polygon by tag

I'm using MapBox Studio to create a personalized map for slums. In OSM we have many polygons representing buildings and I need to style them according to their "building" tag. For example, the ...
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24 views

Tilemill: Render a raster only where a shape layer is underneath

I'd like to mask a raster to only those areas, where there is a shape layer underneath. To be more precise: I have a land layer and a hillshading on top and I only want my hillshading to appear on top ...
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209 views

CartoDB Torque: show severity by size of marker?

I have a dataset containing the cost of damage caused by individual floods over the past 100 years. I'd like to use TORQUE to display these events on a map over time, with their severity shown by the ...