Polygon Layer can display GeoJSON features. GeoJSON supports the following geometry types: Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon.

A polygon GeoJSON layer is essentially a choropleth layer and works best for rendering geofences. Fill color or height can be set with a numerical field. For example, it can display population by census tracts.

Settings

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

Basic

Core settings for the Polygon Layer.

Setting	Description
Layer Type	Must be Polygon to use the Polygon Layer.
Dataset	The dataset to use for the Polygon Layer.
Columns	The column(s) containing polygon data.
GeoJSON	A GeoJSON FeatureCollection to use for polygon generation. See above.
Table columns	Tabular input used for polygon generation. See above.

Fill Color

Settings related to the fill color of the polygons.

Setting	Description
Fill Color Toggle	Toggle on/off to show/hide fill color.
Color Based On	The field to base the fill color on.
Color Scale	The color scale and palette for the fill color.
Opacity	The opacity of the fill color. 100 = fully opaque, 0 = fully transparent.

Stroke Color

Settings related to the stroke color of the polygons.

Setting	Description
Stroke Toggle	Toggle on/off to show/hide stroke.
Stroke Color Based On	The field to base the stroke color on.
Stroke Color Scale	The color scale and palette for the stroke color.

Stroke Width

Settings related to the stroke widths of the polygons.

Setting	Description
Stroke Width	The stroke width in pixels. When based on a column, define a range instead of a static width.
Stroke Width Based On	A field to base stroke width on.

Height

Height settings for the polygon layer. Height is best viewed with the 3D viewing mode.

Setting	Description
Height Slider	Increase to raise the height of the layer's polygon.
Height Based On	An column to base the height off of.
Height Scale	Choose from linear, sqrt, and log.
Fixed Height	Applies height without additional modifications.
Shows Wireframe	Show the wireframes that define the polygon.

Polygon Layer visualizing building footprints with fixed heights.

Label

Label settings for the Polygon Layer. Labels are attached to each polygon.

Setting	Description
Label Field	Select a field to display on the label.
Font Size	The size of the font to use on the label.
Font Color	The color of the label font.
Outline Width	The width of the outline in pixels. Set to `0` to disable the outline.
Outline Color	The color for the outline label.
Background Color	Toggle to enable a background color for the label. Choose a color with the color selector.
Text Anchor	Where, relative to the polygons, to anchor the text. Choose from start, middle, or end.
Alignment	How to align the text. Choose from top, middle, or bottom.
Add More Labels	Add another label to the polygons.