IGeoLayerBase

IGeoLayerBase.colorproperty

Color measure or attribute for this layer.

color?: IAttributeOrMeasure;

Remarks

When a measure is provided, colors are determined by the measure values using a color scale (gradient). When an attribute is provided, colors are assigned categorically based on attribute values.

For pushpin layers, this affects the fill color of the markers. For area layers, this affects the fill color of the regions.

IGeoLayerBase.configproperty

Optional per-layer configuration.

config?: IGeoLayerConfig;

Remarks

This config is intentionally limited to layer-scoped options only.

IGeoLayerBase.filtersproperty

Filters specific to this layer.

filters?: INullableFilter[];

Remarks

Array of filters applied only to this layer’s data execution.

These filters are applied **before** any global/component-level filters (e.g. GeoChart.filters). When both layer and global filters are provided, the global filters are applied *after* the layer filters and therefore take precedence for filter types with “last wins” merge rules (for example date filters for the same date dataset or measure value filters for the same measure). Other filter types may accumulate according to SDK merge semantics.

IGeoLayerBase.idproperty

Unique identifier for this layer.

id: string;

Remarks

Used internally to track layer state and for debugging purposes. Each layer in a GeoChart must have a unique id.

IGeoLayerBase.nameproperty

Human-readable name for the layer.

name?: string;

Remarks

Optional display name that may be shown in legends or tooltips. If not provided, the layer id is used.

IGeoLayerBase.segmentByproperty

Segment attribute for categorization.

segmentBy?: IAttribute;

Remarks

Groups data points by the specified attribute, creating separate visual categories with distinct colors. When segmentBy is used, a category legend is displayed.

For pushpin layers, different segments get different marker colors. For area layers, different segments get different fill colors.

IGeoLayerBase.sortByproperty

Sorting for this layer.

sortBy?: ISortItem[];

Remarks

Defines how data points are sorted for this layer. Sorting can affect tooltip display order and rendering priority.

IGeoLayerBase.tooltipTextproperty

Tooltip text attribute for this layer.

tooltipText?: IAttribute;

Remarks

An attribute whose values are displayed in tooltips when hovering over data points in this layer. If not provided, falls back to the unified config’s tooltipText setting.

IGeoLayerBase.typeproperty

Layer type discriminator.

type: GeoLayerType;

Remarks

Determines the rendering mode for this layer. Use "pushpin" for point/marker data or "area" for region/polygon data.