Add governed DHMV terrain analysis

2026-07-15 18:13:05 +02:00
parent 0e36d750c0
commit 5d8b46ed60
36 changed files with 1936 additions and 44 deletions
@@ -12,6 +12,7 @@ const THEME_LABELS: Record<string, string> = {
  nature_value: 'Natuurwaarde',
  agriculture: 'Landbouw',
  water: 'Water',
+  elevation: 'Hoogte en reliëf',
  roads: 'Wegen en transport',
  parcels: 'Percelen',
 }
@@ -54,7 +55,7 @@ const AVAILABLE_SOURCES = [
    name: 'Digitaal Hoogtemodel Vlaanderen II',
    owner: 'Digitaal Vlaanderen',
    coverage: 'LiDAR-opname 2013-2015, DTM/DSM 1 m en 5 m',
-    value: 'Hoogte, reliëf, helling en afstroming; geen waterdiepte',
+    value: 'Hoogte, reliëf en helling; afstroming is afgeleid, geen waterdiepte',
    url: 'https://www.vlaanderen.be/digitaal-vlaanderen/onze-diensten-en-platformen/earth-observation-data-science-eodas/het-digitaal-hoogtemodel/digitaal-hoogtemodel-vlaanderen-ii',
  },
  {
@@ -111,6 +112,7 @@ export function SourceCatalogPanel({ datasets }: SourceCatalogPanelProps): JSX.E
  const buildingsRegisterDatasets = ready.filter(
    (dataset) => dataset.source_name === 'digitaal_vlaanderen_buildings_addresses_register',
  )
+  const dhmvDatasets = ready.filter((dataset) => dataset.source_name === 'digitaal_vlaanderen_dhmv')
  const latestBuildingsRegister = [...buildingsRegisterDatasets].sort(
    (left, right) => new Date(right.observed_at ?? 0).getTime() - new Date(left.observed_at ?? 0).getTime(),
  )[0]
@@ -122,6 +124,7 @@ export function SourceCatalogPanel({ datasets }: SourceCatalogPanelProps): JSX.E
    if (source.key === 'bwk') return bwkDatasets.length === 0
    if (source.key === 'agriculture') return agricultureDatasets.length === 0
    if (source.key === 'buildings_register') return buildingsRegisterDatasets.length === 0
+    if (source.key === 'elevation') return dhmvDatasets.length === 0
    return true
  })
  const themes = Object.keys(THEME_LABELS).map((theme) => {
@@ -181,7 +184,7 @@ export function SourceCatalogPanel({ datasets }: SourceCatalogPanelProps): JSX.E
        ))}
      </div>

-      {waterinfoDatasets.length > 0 || historicalOrthophotos.length > 0 || bwkDatasets.length > 0 || agricultureDatasets.length > 0 || buildingsRegisterDatasets.length > 0 ? (
+      {waterinfoDatasets.length > 0 || historicalOrthophotos.length > 0 || bwkDatasets.length > 0 || agricultureDatasets.length > 0 || buildingsRegisterDatasets.length > 0 || dhmvDatasets.length > 0 ? (
        <div className="source-catalog-loaded" aria-label="Aanvullende ingeladen bronnen">
          {waterinfoDatasets.length > 0 ? (
            <article>
@@ -222,6 +225,13 @@ export function SourceCatalogPanel({ datasets }: SourceCatalogPanelProps): JSX.E
              <p>Registerstatus en geaggregeerde koppelingen voor Mol; adreslabels en persoonsgegevens worden niet in de kaartlaag getoond.</p>
            </article>
          ) : null}
+          {dhmvDatasets.length > 0 ? (
+            <article>
+              <strong>Digitaal Hoogtemodel Vlaanderen II</strong>
+              <span>{dhmvDatasets.length} rasterproducten · DTM/DSM · analyse op 5 m</span>
+              <p>Hoogte in TAW, reliëf en helling uit opnameperiode 2013-2015. Geen waterdiepte of watervolume.</p>
+            </article>
+          ) : null}
        </div>
      ) : null}

@@ -6,6 +6,7 @@ import { useMapThemeSelectionInsights } from '../../hooks/useMapThemeSelectionIn
 import { useTemporalComparison } from '../../hooks/useTemporalComparison'
 import { getDatasetDisplayName, getDatasetSourceDisplayName } from '../../lib/datasetDisplay'
 import { TemporalTrendChart } from './TemporalTrendChart'
+import { terrainImageUrl } from '../../lib/terrainImage'

 const DEFAULT_SELECTED_FEATURE_FILENAME = 'selected-feature.geojson'
 const DEFAULT_AREA_SELECTION_FILENAME = 'area-selection.geojson'
@@ -13,7 +14,7 @@ const EMPTY_TEMPORAL_SERIES: DatasetCreateResponse[] = []
 const MOL_PROJECT_NAME = 'Mol Municipality Workbench'
 const KEMPEN_PROJECT_NAME = 'Kempen Regional Workbench'

-type DataThemeId = 'buildings' | 'population' | 'forest' | 'nature_value' | 'agriculture' | 'water' | 'roads' | 'parcels'
+type DataThemeId = 'buildings' | 'population' | 'forest' | 'nature_value' | 'agriculture' | 'water' | 'elevation' | 'roads' | 'parcels'

 interface DataTheme {
  id: DataThemeId
@@ -72,6 +73,13 @@ const DATA_THEMES: DataTheme[] = [
    description: 'Waterlopen, grachten, kanalen en wateroppervlakken.',
    tokens: ['waterways', 'waterway', 'water', 'hydro', 'river', 'stream', 'canal', 'waterloop'],
  },
+  {
+    id: 'elevation',
+    label: 'Hoogte & reliëf',
+    shortLabel: 'Hoogte',
+    description: 'Maaiveld- of oppervlaktehoogte, reliëf en helling uit DHMV II.',
+    tokens: ['dhmv', 'elevation', 'height', 'hoogte', 'terrain', 'surface', 'dtm', 'dsm', 'reliëf'],
+  },
  {
    id: 'roads',
    label: 'Wegen',
@@ -95,10 +103,19 @@ const DATA_THEME_MAP_STYLES: Record<DataThemeId, { fill: string; line: string }>
  nature_value: { fill: '#9a4f64', line: '#74364a' },
  agriculture: { fill: '#7b8f32', line: '#53671d' },
  water: { fill: '#2676a8', line: '#155b85' },
+  elevation: { fill: '#a57a4b', line: '#315f59' },
  roads: { fill: '#6b7280', line: '#4b5563' },
  parcels: { fill: '#a7792f', line: '#7d571f' },
 }

+function datasetAvailabilityLabel(dataset: DatasetCreateResponse): string {
+  if (dataset.dataset_type === 'raster' && dataset.source_name === 'digitaal_vlaanderen_dhmv') {
+    const resolution = Number(dataset.source_metadata?.['analysis_resolution_m'])
+    return `${Number.isFinite(resolution) ? `${resolution.toLocaleString('nl-BE')} m` : 'Raster'} hoogtegrid beschikbaar`
+  }
+  return `${(dataset.feature_count ?? dataset.vector_summary?.feature_count ?? 0).toLocaleString('nl-BE')} objecten beschikbaar`
+}
+
 function datasetSearchText(dataset: DatasetCreateResponse): string {
  return [
    dataset.name,
@@ -144,6 +161,8 @@ function pickThemeDataset(
      (dataset.source_name === 'inbo_bwk_natura2000' ? 95_000 : 0) +
      (dataset.source_name === 'agentschap_landbouw_zeevisserij_agricultural_parcels' ? 98_000 : 0) +
      (dataset.source_name === 'digitaal_vlaanderen_buildings_addresses_register' ? 5_000_000 : 0) +
+      (dataset.source_name === 'digitaal_vlaanderen_dhmv' ? 5_000_000 : 0) +
+      (dataset.source_metadata?.['product_key'] === 'dtm_1m' ? 1_000_000 : 0) +
      (dataset.dataset_role === 'reference' ? 10_000 : 0) +
      (dataset.observed_at ? new Date(dataset.observed_at).getTime() / 100_000_000 : 0) +
      (dataset.feature_count ?? dataset.vector_summary?.feature_count ?? 0)
@@ -200,6 +219,14 @@ function formatObservationDate(value: string | null | undefined): string {
  return new Intl.DateTimeFormat('nl-BE', { year: 'numeric', month: 'short', day: 'numeric' }).format(new Date(value))
 }

+function formatDatasetObservation(dataset: DatasetCreateResponse): string {
+  const period = dataset.source_metadata?.['acquisition_period']
+  if (typeof period === 'string' && period.trim()) {
+    return `opnameperiode ${period}`
+  }
+  return formatObservationDate(dataset.observed_at)
+}
+
 function operationalScopeProjectLabel(project: ProjectRead): string {
  if (project.name === MOL_PROJECT_NAME) {
    return 'Mol'
@@ -668,6 +695,18 @@ export function MapWorkspace({
      }
    : null
  const activeThemeDataset = themeDatasetMap[activeTheme.id]
+  const terrainBounds = activeThemeDataset?.source_name === 'digitaal_vlaanderen_dhmv'
+    ? activeThemeDataset.source_metadata?.['bbox_epsg4326']
+    : null
+  const terrainImageOverlay = activeTheme.id === 'elevation' && activeThemeDataset && selectedProjectId && Array.isArray(terrainBounds) && terrainBounds.length === 4
+    ? {
+        url: terrainImageUrl(selectedProjectId, activeThemeDataset.id),
+        bbox: terrainBounds.map(Number) as [number, number, number, number],
+        label: getDatasetDisplayName(activeThemeDataset),
+        opacity: 0.82,
+      }
+    : null
+  const activeImageOverlay = terrainImageOverlay ?? orthophotoImageOverlay
  const activeScopeProject = projects.find((project) => project.id === selectedProjectId) ?? null
  const activeScopeLabel = activeScopeProject ? operationalScopeProjectLabel(activeScopeProject) : 'Werkgebied'
  const municipalityAreaCount = areas.filter((area) => /^Gemeente\s/i.test(area.name)).length
@@ -709,11 +748,14 @@ export function MapWorkspace({
  const activeSupportingMetrics = (activeSelectionResult?.summary?.metrics ?? []).filter(
    (metric) => metric.metric_key !== activeSelectionResult?.summary?.primary_metric_key,
  )
-  const activeSecondaryMetric = selectedAreaSquareMetres && selectedAreaSquareMetres > 0
-    ? activeMetricUnit === 'ha'
+  const terrainReliefMetric = activeSupportingMetrics.find((metric) => metric.metric_key === 'relief_m')
+  const activeSecondaryMetric = activeMetricUnit === 'm TAW'
+    ? terrainReliefMetric ? `${terrainReliefMetric.metric_value.toLocaleString('nl-BE', { maximumFractionDigits: 2 })} m reliëf` : null
+    : selectedAreaSquareMetres && selectedAreaSquareMetres > 0
+      ? activeMetricUnit === 'ha'
      ? `${((activeMetricValue * 10_000) / selectedAreaSquareMetres * 100).toLocaleString('nl-BE', { maximumFractionDigits: 1 })}% dekking`
      : `${(activeMetricValue / (selectedAreaSquareMetres / 1_000_000)).toLocaleString('nl-BE', { maximumFractionDigits: 1 })} ${activeMetricUnit} / km2`
-    : null
+      : null
  const selectedResultProperties = useMemo(() => {
    const keys = new Map<string, Set<string>>()
    for (const feature of activeSelectionResult?.geojson.features ?? []) {
@@ -1094,7 +1136,7 @@ export function MapWorkspace({
                              ? 'Alleen huidige toestand'
                              : 'Bron nog niet ingeladen'
                          : dataset
-                            ? `${(dataset.feature_count ?? dataset.vector_summary?.feature_count ?? 0).toLocaleString('nl-BE')} objecten beschikbaar`
+                            ? datasetAvailabilityLabel(dataset)
                            : 'Bron nog niet ingeladen'}
                      </small>
                    </span>
@@ -1125,7 +1167,7 @@ export function MapWorkspace({
                    ? `${activeTemporalSeries.length} officiële meetmomenten · ${formatObservationDate(activeTemporalSeries[0].observed_at)} tot ${formatObservationDate(activeTemporalSeries[activeTemporalSeries.length - 1].observed_at)}`
                    : 'Voor dit thema is nog geen tweede officieel meetmoment beschikbaar.'
                  : activeThemeDataset
-                    ? `${getDatasetSourceDisplayName(activeThemeDataset)} · ${formatObservationDate(activeThemeDataset.observed_at)}`
+                    ? `${getDatasetSourceDisplayName(activeThemeDataset)} · ${formatDatasetObservation(activeThemeDataset)}`
                    : activeTheme.description}
              </small>
            </div>
@@ -1225,7 +1267,7 @@ export function MapWorkspace({
                areaData={areaFeatureCollection}
                selectedFeature={selectedFeature}
                selectionData={analysisMode === 'current' ? mapSelectionResult?.geojson ?? null : null}
-                imageOverlay={orthophotoImageOverlay}
+                imageOverlay={activeImageOverlay}
                selectionBbox={mapSelectionBbox}
                bboxSelectionMode={bboxSelectionMode}
                visible={mapLayerVisible}
@@ -1241,7 +1283,7 @@ export function MapWorkspace({
              />
              <div className="geo-map-legend" aria-label="Kaartlegende">
                <span><i className="geo-legend-area" /> Werkgebied</span>
-                {orthophotoImageOverlay ? <span><i className="geo-legend-imagery" /> {orthophotoImageOverlay.label}</span> : null}
+                {activeImageOverlay ? <span><i className="geo-legend-imagery" /> {activeImageOverlay.label}</span> : null}
                {analysisOverlayActive ? (
                  <>
                    <span><i className="geo-legend-layer geo-legend-layer-buildings" /> AI-kandidaten</span>
@@ -1444,7 +1486,7 @@ export function MapWorkspace({
                        <strong>{activeSelectionResult ? resultMetricLabel(activeSelectionResult) : 'Geen resultaat'}</strong>
                      </div>
                      <div>
-                        <span>{activeMetricUnit === 'ha' ? 'Aandeel selectie' : 'Dichtheid'}</span>
+                        <span>{activeMetricUnit === 'ha' ? 'Aandeel selectie' : activeMetricUnit === 'm TAW' ? 'Reliëf' : 'Dichtheid'}</span>
                        <strong>{activeSecondaryMetric ?? (selectedDensity === null ? 'n.v.t.' : `${selectedDensity.toLocaleString('nl-BE', { maximumFractionDigits: 1 })} / km2`)}</strong>
                      </div>
                    </div>
@@ -1517,7 +1559,7 @@ export function MapWorkspace({

                {analysisMode === 'current' ? (
                  <div className="geo-result-actions">
-                    <button className="secondary-action" disabled={!activeSelectionResult} type="button" onClick={downloadActiveThemeSelection}>Download GeoJSON</button>
+                    <button className="secondary-action" disabled={!activeSelectionResult || activeTheme.id === 'elevation'} type="button" onClick={downloadActiveThemeSelection}>Download GeoJSON</button>
                    <button className="secondary-action" disabled={!activeSelectionResult} type="button" onClick={copyActiveThemeSelection}>Kopieer gegevens</button>
                  </div>
                ) : null}