Vector layers use the three basic GIS features – lines, points, and polygons – to represent real-world features in digital format.

An example of the Vector Layer displaying polygons.

# Settings

The follow sections detail every setting available in the Vector Layer.

## Basic

Core settings for the Vector Layer.

| Setting      | Description                                                       |
|--------------|-------------------------------------------------------------------|
| Layer Type   | Must be Vector Tile to use the Vector Layer.                     |

## Fill Color

Settings related to the fill color of the vector data.

| Setting             | Description                                                                                      |
|---------------------|--------------------------------------------------------------------------------------------------|
| Color Based On      | The field to base the fill color on.                                                            |
| Color Scale         | The [color scale and palette](https://docs.foursquare.com/analytics-products/docs/layers-color-scale-and-palettes) for the fill color. |
| Dynamic Color       | Enable to estimate color range and scale based on data visible in the current viewport. When panning the map, the color scale will update dynamically. |
| Opacity             | The opacity of the fill color. 100 = fully opaque, 0 = fully transparent.                       |

## Stroke Color

Settings related to the stroke/outline color of the vector layer.

| Setting                     | Description                                                               |
|-----------------------------|---------------------------------------------------------------------------|
| Stroke Color                | Toggle to enable stroke.                                                  |
| Stroke Color Based On       | A column to base the stroke color on. When enabled, a color scale can be selected. |
| Color                       | The color or color scale to use for the stroke.                          |
| Opacity                     | The opacity of the stroke.                                               |

## Stroke Width

Settings related to the stroke/outline width of the vector layer.

| Setting                   | Description                                                                                              |
|--------------------------|----------------------------------------------------------------------------------------------------------|
| Stroke Width             | Toggle to enable stroke.                                                                                 |
| Stroke Width Slider      | Slide or enter a number to select the width of the stroke/outline in pixels. When "Stroke Based On" is selected, this becomes a range. |
| Stroke Based On          | A column to base the stroke width on.                                                                    |
| Stroke Scale             | The method by which to scale the stroke/outline size. Choose between Linear, Sqrt, and Log.            |

## Height

Height settings for the vector layer. Height is best viewed with the [3D viewing mode](https://docs.foursquare.com/analytics-products/docs/maps-view-modes).

| Setting                   | Description                                                                                               |
|--------------------------|-----------------------------------------------------------------------------------------------------------|
| Height Slider            | Increase to raise the height of the layer objects.                                                       |
| Height Based On         | A column to base the height off of.                                                                       |
| Height Scale            | Choose from linear, sqrt, and log.                                                                       |
| Fixed Height            | Applies height without additional modifications.                                                          |

# JSON Schema

For details on how to programmatically specify layer properties, refer to the [Layer Configuration](https://docs.foursquare.com/developer/docs/studio-layer-reference#vector-tile) specification.