Skip to main content

Get Started

Installation​

npm install @deck.gl-community/editable-layers

You'll also need deck.gl and a base map provider:

npm install deck.gl @deck.gl/react @deck.gl/core @deck.gl/layers maplibre-gl react-map-gl

Quick Overview of the API​

EditableGeoJsonLayer​

EditableGeoJsonLayer is implemented as a deck.gl layer. It provides the ability to view and edit multiple types of geometry formatted as GeoJSON (an open standard format for geometry) including polygons, lines, and points.

Edit Modes​

Edit modes control how the user interacts with features. Each mode defines a specific editing behavior:

  • View modes: ViewMode — Select features without editing
  • Draw modes: DrawPointMode, DrawLineStringMode, DrawPolygonMode, DrawRectangleMode, DrawCircleFromCenterMode, and more — Create new geometry by clicking on the map
  • Transform modes: ModifyMode, TranslateMode, RotateMode, ScaleMode — Modify existing geometry by dragging vertices or features
  • Measurement modes: MeasureDistanceMode, MeasureAreaMode, MeasureAngleMode — Measure distances, areas, and angles
  • Composite modes: CompositeMode, SnappableMode — Combine multiple modes or add snapping behavior

Set the mode via the mode prop on EditableGeoJsonLayer. See the Edit Modes API reference for the full list.

Callbacks​

When editing is enabled, the onEdit callback fires with details about each edit:

onEdit: ({updatedData, editType, editContext}) => {
  // updatedData — the new FeatureCollection after the edit
  // editType — 'addFeature', 'movePosition', 'removePosition', etc.
  // editContext — mode-specific context (e.g. featureIndexes for addFeature)
  setFeatures(updatedData);
}

Minimal Example​

import React, {useState} from 'react';
import DeckGL from '@deck.gl/react';
import {
  EditableGeoJsonLayer,
  DrawPolygonMode,
  ViewMode
} from '@deck.gl-community/editable-layers';
import StaticMap from 'react-map-gl/maplibre';

const INITIAL_VIEW_STATE = {
  longitude: -122.43,
  latitude: 37.775,
  zoom: 12
};

export function GeometryEditor() {
  const [features, setFeatures] = useState({
    type: 'FeatureCollection',
    features: []
  });
  const [mode, setMode] = useState(() => DrawPolygonMode);
  const [selectedFeatureIndexes, setSelectedFeatureIndexes] = useState([]);

  const layer = new EditableGeoJsonLayer({
    data: features,
    mode,
    selectedFeatureIndexes,
    onEdit: ({updatedData}) => {
      setFeatures(updatedData);
    }
  });

  return (
    <DeckGL
      initialViewState={INITIAL_VIEW_STATE}
      controller={{doubleClickZoom: false}}
      layers={[layer]}
      getCursor={layer.getCursor.bind(layer)}
    >
      <StaticMap mapStyle="https://basemaps.cartocdn.com/gl/positron-gl-style/style.json" />
    </DeckGL>
  );
}

See the getting-started example for a complete runnable version.

Widgets​

editable-layers ships deck.gl widgets that provide editing UI without requiring you to build custom React components.

EditModeTrayWidget​

Renders a tray of mode selection buttons. Pass it to the widgets prop on your DeckGL component:

import {EditModeTrayWidget, ViewMode, DrawPolygonMode} from '@deck.gl-community/editable-layers';

const trayWidget = new EditModeTrayWidget({
  placement: 'top-left',
  layout: 'vertical',
  modes: [
    {id: 'view', mode: ViewMode, label: 'View'},
    {id: 'draw-polygon', mode: DrawPolygonMode, label: 'Polygon'}
  ],
  onSelectMode: ({mode}) => setMode(mode)
});

<DeckGL widgets={[trayWidget]} ... />

EditorToolbarWidget​

Renders a toolbar with boolean operations (union, difference, intersection), clear, and export buttons:

import {EditorToolbarWidget} from '@deck.gl-community/editable-layers';

const toolbarWidget = new EditorToolbarWidget({
  placement: 'bottom-left',
  onSetBooleanOperation: (op) => setModeConfig(op ? {booleanOperation: op} : {}),
  onClear: () => setFeatures({type: 'FeatureCollection', features: []}),
  onExport: () => downloadGeoJson(features)
});

See the editor example for a full widgets-only editing setup, and the Widget API docs for the complete props reference.

See Also​