refactoring

Logic/FeatureSource/Sources/TouchesBboxFeatureSource.ts

@@ -0,0 +1,29 @@
+import FeatureSource, { FeatureSourceForLayer } from "../FeatureSource"
+import StaticFeatureSource from "./StaticFeatureSource"
+import { GeoOperations } from "../../GeoOperations"
+import { BBox } from "../../BBox"
+import exp from "constants"
+import FilteredLayer from "../../../Models/FilteredLayer"
+
+/**
+ * Results in a feature source which has all the elements that touch the given features
+ */
+export default class BBoxFeatureSource extends StaticFeatureSource {
+    constructor(features: FeatureSource, mustTouch: BBox) {
+        const bbox = mustTouch.asGeoJson({})
+        super(
+            features.features.mapD((features) =>
+                features.filter((feature) => GeoOperations.intersect(feature, bbox) !== undefined)
+            )
+        )
+    }
+}
+
+export class BBoxFeatureSourceForLayer extends BBoxFeatureSource implements FeatureSourceForLayer {
+    constructor(features: FeatureSourceForLayer, mustTouch: BBox) {
+        super(features, mustTouch)
+        this.layer = features.layer
+    }
+
+    readonly layer: FilteredLayer
+}