I'm almost totally new to CartoDB. I've been looking around and read the api reference, but there seems not to be what I'm looking for.

What I want to do is to "Create visualizations at runtime". From what I read, it is possible to do it only if you already have a visualization created with the UI and then you can work with sublayers.

But what I actually want to do is to create a visualization from scratch, using just the table containing the values I want to represent on the map.

Is this possible or I'm totally out of mind?

1 Answer 1


Yes, totally possible. That is what this portion is about Visualization at runtime

You'll see that the method doesn't include anything about an existing visualization, but just defines sublayers for a new one on the fly. The sublayers contain info about the table and columns you wish to use. Here it is generically,

cartodb.createLayer(map, {
  user_name: 'your user name',
  type: 'cartodb',
  sublayers: [{
    sql: "SELECT * FROM table_name",
    cartocss: '#table_name {marker-fill: #F0F0F0;}'

Where table_name is just that, the table you want to turn into a visualization. Your username can be found by the URL of your account, it is always http://username.cartodb.com... when you are signed in.

  • Thanks for your quick reply. Actually that's what i'm trying to do, but i always receive a 404.. no idea on how to debug it... Any clue?
    – sissy
    Commented Mar 3, 2014 at 17:06
  • Hmm... Perhaps your table is private? If you are on a free account, this shouldn't be the case. Are you using chrome? Could you drop a link to one of your failed tile requests? Commented Mar 3, 2014 at 17:07
  • I'm using a free account, and yes using chrome. is that a problem? trying with ff, in console i get no errors... this should be the link you asked sissy0584.cartodb.com/tables/output_new
    – sissy
    Commented Mar 3, 2014 at 17:10
  • i tried with a different table and that seems to work... really strange behaviour. Thanks for your help indeed :) i had a moment of total panic :)
    – sissy
    Commented Mar 3, 2014 at 17:19
  • anyway you can create a public gist (gist.github.com) of your code? Commented Mar 4, 2014 at 20:52

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