Add governed DHMV terrain analysis

frontend/src/hooks/useMapSelectionExtract.ts

@@ -2,6 +2,7 @@ import { useEffect, useRef, useState } from 'react'
 import { datasetsApi } from '../services/api'
 import { formatError } from '../lib/formatError'
 import type { DatasetCreateResponse, VectorSelectionBBox, VectorSelectionResponse } from '../types'
+import { terrainSelectionToMapSelection } from '../lib/terrainSelection'
 
 interface MapSelectionExtractOptions {
   selectedProjectId: string | null
@@ -38,8 +39,9 @@ export function useMapSelectionExtract({
       setMapSelectionError('Open a vector dataset before extracting a map area.')
       return null
     }
-    if (!isVectorDatasetType(selectedDataset.dataset_type)) {
-      setMapSelectionError('Area extraction requires an active vector dataset.')
+    const terrainDataset = selectedDataset.dataset_type === 'raster' && selectedDataset.source_name === 'digitaal_vlaanderen_dhmv'
+    if (!isVectorDatasetType(selectedDataset.dataset_type) && !terrainDataset) {
+      setMapSelectionError('Gebiedsanalyse ondersteunt een vectorlaag of een beheerd DHMV-hoogtemodel.')
       return null
     }
 
@@ -49,11 +51,16 @@ export function useMapSelectionExtract({
     setMapSelectionError(null)
     setMapSelectionBbox(bbox)
     try {
-      const response = await datasetsApi.selectVectorFeatures(selectedProjectId, selectedDataset.id, {
-        bbox: { ...bbox, crs: 'EPSG:4326' },
-        area_id: areaId,
-        limit: 1000,
-      })
+      const response = terrainDataset
+        ? terrainSelectionToMapSelection(await datasetsApi.selectTerrain(selectedProjectId, selectedDataset.id, {
+            bbox: { ...bbox, crs: 'EPSG:4326' },
+            area_id: areaId,
+          }))
+        : await datasetsApi.selectVectorFeatures(selectedProjectId, selectedDataset.id, {
+            bbox: { ...bbox, crs: 'EPSG:4326' },
+            area_id: areaId,
+            limit: 1000,
+          })
       if (requestSequence.current !== sequence) {
         return null
       }

frontend/src/hooks/useMapThemeSelectionInsights.ts

@@ -2,6 +2,7 @@ import { useEffect, useRef, useState } from 'react'
 import { formatError } from '../lib/formatError'
 import { datasetsApi } from '../services/api/datasets'
 import type { DatasetCreateResponse, VectorSelectionBBox, VectorSelectionResponse } from '../types'
+import { terrainSelectionToMapSelection } from '../lib/terrainSelection'
 
 export interface MapThemeQuery<TThemeId extends string> {
   themeId: TThemeId
@@ -54,11 +55,16 @@ export function useMapThemeSelectionInsights<TThemeId extends string>(
         queries.map(async ({ themeId, dataset }) => ({
           themeId,
           dataset,
-          result: await datasetsApi.selectVectorFeatures(selectedProjectId, dataset.id, {
-            bbox,
-            area_id: areaId,
-            limit: 1000,
-          }),
+          result: dataset.dataset_type === 'raster' && dataset.source_name === 'digitaal_vlaanderen_dhmv'
+            ? terrainSelectionToMapSelection(await datasetsApi.selectTerrain(selectedProjectId, dataset.id, {
+                bbox,
+                area_id: areaId,
+              }))
+            : await datasetsApi.selectVectorFeatures(selectedProjectId, dataset.id, {
+                bbox,
+                area_id: areaId,
+                limit: 1000,
+              }),
         })),
       )
       const successful = settled.flatMap((item) => (item.status === 'fulfilled' ? [item.value] : []))