geoarrow · kylebarron · Apr 15, 2026 · Apr 15, 2026 · Apr 15, 2026 · Apr 15, 2026
diff --git a/examples/point/package.json b/examples/point/package.json
@@ -8,7 +8,7 @@
     "build": "vite build"
   },
   "dependencies": {
-    "@geoarrow/deck.gl-layers": "*",
+    "@geoarrow/deck.gl-layers": "workspace:^",
     "@loaders.gl/compression": "^4.1.4",
     "@loaders.gl/crypto": "^4.1.4",
     "apache-arrow": ">=14",

diff --git a/package.json b/package.json
@@ -17,7 +17,7 @@
     "prepublishOnly": "pnpm clean && pnpm build",
     "test": "vitest run",
     "typecheck": "tsc --build",
-    "watch": "tsc --watch"
+    "watch": "tsc --build --watch"
   },
   "files": [
     "dist/",

diff --git a/packages/deck.gl-layers/package.json b/packages/deck.gl-layers/package.json
@@ -19,7 +19,7 @@
   },
   "scripts": {
     "build:rollup": "rollup -c rollup.config.js",
-    "build:tsc": "tsc",
+    "build:tsc": "tsc --project tsconfig.build.json",
     "build": "npm run build:tsc && npm run build:rollup",
     "clean": "rimraf dist",
     "docs:build": "typedoc",
@@ -28,7 +28,7 @@
     "fmt": "prettier './src/**/*.ts' --write",
     "prepublishOnly": "npm run clean && npm run build",
     "test": "vitest run",
-    "watch": "tsc --watch"
+    "watch": "tsc --project tsconfig.build.json --watch"
   },
   "files": [
     "dist/",

diff --git a/packages/deck.gl-layers/rollup.config.js b/packages/deck.gl-layers/rollup.config.js
@@ -24,7 +24,17 @@ export default [
       format: "es",
       sourcemap,
     },
-    plugins: [nodeResolve(), commonjs(), typescript()],
+    plugins: [
+      nodeResolve(),
+      commonjs(),
+      typescript({
+        compilerOptions: {
+          composite: false,
+          declaration: false,
+          declarationMap: false,
+        },
+      }),
+    ],
     external,
   },
   {
@@ -33,7 +43,7 @@ export default [
       file: "dist/index.d.ts",
       format: "es",
     },
-    plugins: [dts()],
+    plugins: [dts({ compilerOptions: { composite: false } })],
     external,
   },
   {
@@ -43,7 +53,17 @@ export default [
       format: "cjs",
       sourcemap,
     },
-    plugins: [nodeResolve(), commonjs(), typescript()],
+    plugins: [
+      nodeResolve(),
+      commonjs(),
+      typescript({
+        compilerOptions: {
+          composite: false,
+          declaration: false,
+          declarationMap: false,
+        },
+      }),
+    ],
     external,
   },
   {
@@ -62,7 +82,16 @@ export default [
         "apache-arrow": "Arrow",
       },
     },
-    plugins: [typescript(), terser()],
+    plugins: [
+      typescript({
+        compilerOptions: {
+          composite: false,
+          declaration: false,
+          declarationMap: false,
+        },
+      }),
+      terser(),
+    ],
     external,
   },
 ];
diff --git a/packages/deck.gl-layers/src/layers/a5-layer.ts b/packages/deck.gl-layers/src/layers/a5-layer.ts
@@ -101,10 +101,10 @@ const defaultProps: DefaultProps<GeoArrowA5LayerProps> = {
 export class GeoArrowA5Layer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowA5LayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowA5Layer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowA5Layer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/arc-layer.ts b/packages/deck.gl-layers/src/layers/arc-layer.ts
@@ -118,10 +118,10 @@ const defaultProps: DefaultProps<GeoArrowArcLayerProps> = {
 export class GeoArrowArcLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowArcLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowArcLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowArcLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/column-layer.ts b/packages/deck.gl-layers/src/layers/column-layer.ts
@@ -112,10 +112,10 @@ const defaultProps: DefaultProps<GeoArrowColumnLayerProps> = {
 export class GeoArrowColumnLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowColumnLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowColumnLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowColumnLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/geohash-layer.ts b/packages/deck.gl-layers/src/layers/geohash-layer.ts
@@ -97,10 +97,10 @@ const defaultProps: DefaultProps<GeoArrowGeohashLayerProps> = {
 export class GeoArrowGeohashLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowGeohashLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowGeohashLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowGeohashLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/h3-hexagon-layer.ts b/packages/deck.gl-layers/src/layers/h3-hexagon-layer.ts
@@ -101,10 +101,10 @@ const defaultProps: DefaultProps<GeoArrowH3HexagonLayerProps> = {
 export class GeoArrowH3HexagonLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowH3HexagonLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowH3HexagonLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowH3HexagonLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/heatmap-layer.ts b/packages/deck.gl-layers/src/layers/heatmap-layer.ts
@@ -78,8 +78,8 @@ const defaultProps: DefaultProps<GeoArrowHeatmapLayerProps> = {
 export class GeoArrowHeatmapLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowHeatmapLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowHeatmapLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowHeatmapLayer";
 
   renderLayers(): Layer<object> | LayersList | null {
     const { data: batch } = this.props;

diff --git a/packages/deck.gl-layers/src/layers/path-layer.ts b/packages/deck.gl-layers/src/layers/path-layer.ts
@@ -96,10 +96,10 @@ export const defaultProps: DefaultProps<GeoArrowPathLayerProps> = {
 export class GeoArrowPathLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowPathLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowPathLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowPathLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/point-cloud-layer.ts b/packages/deck.gl-layers/src/layers/point-cloud-layer.ts
@@ -91,10 +91,10 @@ const defaultProps: DefaultProps<GeoArrowPointCloudLayerProps> = {
 export class GeoArrowPointCloudLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowPointCloudLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowPointCloudLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowPointCloudLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/polygon-layer.ts b/packages/deck.gl-layers/src/layers/polygon-layer.ts
@@ -212,10 +212,10 @@ const defaultLineColor: [number, number, number, number] = [0, 0, 0, 255];
 export class GeoArrowPolygonLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<Required<GeoArrowPolygonLayerProps> & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowPolygonLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowPolygonLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },
@@ -281,7 +281,6 @@ export class GeoArrowPolygonLayer<
     // Layer composition props
     const {
       data,
-      _dataDiff,
       stroked,
       filled,
       extruded,

diff --git a/packages/deck.gl-layers/src/layers/s2-layer.ts b/packages/deck.gl-layers/src/layers/s2-layer.ts
@@ -97,10 +97,10 @@ const defaultProps: DefaultProps<GeoArrowS2LayerProps> = {
 export class GeoArrowS2Layer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowS2LayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowS2Layer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowS2Layer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/scatterplot-layer.ts b/packages/deck.gl-layers/src/layers/scatterplot-layer.ts
@@ -103,10 +103,10 @@ const defaultProps: DefaultProps<GeoArrowScatterplotLayerProps> = {
 export class GeoArrowScatterplotLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowScatterplotLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowScatterplotLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowScatterplotLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/solid-polygon-layer.ts b/packages/deck.gl-layers/src/layers/solid-polygon-layer.ts
@@ -191,8 +191,8 @@ const defaultProps: DefaultProps<GeoArrowSolidPolygonLayerProps> = {
 export class GeoArrowSolidPolygonLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowSolidPolygonLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowSolidPolygonLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowSolidPolygonLayer";
 
   declare state: CompositeLayer["state"] & {
     batch: arrow.RecordBatch | null;
@@ -201,7 +201,7 @@ export class GeoArrowSolidPolygonLayer<
     earcutWorkerRequest: Promise<string> | null;
   };
 
-  initializeState(_context: LayerContext): void {
+  override initializeState(_context: LayerContext): void {
     this.state = {
       batch: null,
       triangles: null,
@@ -249,7 +249,7 @@ export class GeoArrowSolidPolygonLayer<
     }
   }
 
-  async finalizeState(_context: LayerContext): Promise<void> {
+  override async finalizeState(_context: LayerContext): Promise<void> {
     await this.state?.earcutWorkerPool?.terminate();
     console.log("terminated");
   }
@@ -319,7 +319,7 @@ export class GeoArrowSolidPolygonLayer<
       polygonData,
       true,
     );
-    pool.queue(async (earcutWorker) => {
+    pool.queue(async (earcutWorker: FunctionThread<[unknown], Uint32Array>) => {
       const earcutTriangles = await earcutWorker(
         Transfer(preparedPolygonData, arrayBuffers),
       );
@@ -372,7 +372,7 @@ export class GeoArrowSolidPolygonLayer<
       polygonData,
       true,
     );
-    pool.queue(async (earcutWorker) => {
+    pool.queue(async (earcutWorker: FunctionThread<[unknown], Uint32Array>) => {
       const earcutTriangles = await earcutWorker(
         Transfer(preparedPolygonData, arrayBuffers),
       );
@@ -401,13 +401,13 @@ export class GeoArrowSolidPolygonLayer<
     return ga.algorithm.earcut(polygonData);
   }
 
-  updateState({ changeFlags }: UpdateParameters<this>): void {
+  override updateState({ changeFlags }: UpdateParameters<this>): void {
     if (changeFlags.dataChanged) {
       this.updateData();
     }
   }
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },
@@ -625,28 +625,3 @@ export class GeoArrowSolidPolygonLayer<
     return new SolidPolygonLayer(finalProps);
   }
 }
-
-function _encodePickingColors(
-  geomToCoordOffsets: Int32Array,
-  encodePickingColor: (id: number, result: number[]) => void,
-): Uint8ClampedArray {
-  const largestOffset = geomToCoordOffsets[geomToCoordOffsets.length - 1];
-  const pickingColors = new Uint8ClampedArray(largestOffset);
-
-  const pickingColor: number[] = [];
-  for (let arrayIdx = 0; arrayIdx < geomToCoordOffsets.length - 1; arrayIdx++) {
-    const thisOffset = geomToCoordOffsets[arrayIdx];
-    const nextOffset = geomToCoordOffsets[arrayIdx + 1];
-
-    // Note: we encode the picking color once per _feature_, but then assign it
-    // to the color array once per _vertex_
-    encodePickingColor(arrayIdx, pickingColor);
-    for (let offset = thisOffset; offset < nextOffset; offset++) {
-      pickingColors[offset * 3] = pickingColor[0];
-      pickingColors[offset * 3 + 1] = pickingColor[1];
-      pickingColors[offset * 3 + 2] = pickingColor[2];
-    }
-  }
-
-  return pickingColors;
-}
diff --git a/packages/deck.gl-layers/src/layers/text-layer.ts b/packages/deck.gl-layers/src/layers/text-layer.ts
@@ -150,10 +150,10 @@ const defaultProps: DefaultProps<GeoArrowTextLayerProps> = {
 export class GeoArrowTextLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowTextLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowTextLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowTextLayer";
 
-  getPickingInfo(
+  override getPickingInfo(
     params: GetPickingInfoParams & {
       sourceLayer: { props: GeoArrowExtraPickingProps };
     },

diff --git a/packages/deck.gl-layers/src/layers/trips-layer.ts b/packages/deck.gl-layers/src/layers/trips-layer.ts
@@ -91,8 +91,8 @@ const defaultProps: DefaultProps<GeoArrowTripsLayerProps> = {
 export class GeoArrowTripsLayer<
   ExtraProps extends object = Record<string, never>,
 > extends CompositeLayer<GeoArrowTripsLayerProps & ExtraProps> {
-  static defaultProps = defaultProps;
-  static layerName = "GeoArrowTripsLayer";
+  static override defaultProps = defaultProps;
+  static override layerName = "GeoArrowTripsLayer";
 
   renderLayers(): Layer<object> | LayersList | null {
     const { data: batch, getTimestamps } = this.props;