Sunshade Explorer

Sunshade Explorer helps you understand how light moves across the parcel. Use the controls below to explore seasonal sun paths and total exposure.

Sun path tips

Scrub the hour slider or press Play to animate shade changes.
Watch the golden-hour marker to plan dusk-friendly plantings.
Hover beds to inspect live sunlit percentage and footprint.

Daily heatmap tips

Use the legend to interpret total sun hours per tile.
Compare focus beds to spot over/under exposed areas.
Drop to 2.5 m or 0.5 m resolution for finer planning detail.

Avg sun —

Sun window —

Variance —

Hour —

Focus beds

Swap between representative zones to compare exposure.

Potager nord — h

Full-sun baseline for veggies.

Terrase nord — h

Track afternoon shade drift.

Sous l'eucalyptus — h

Deep shade benchmark under canopy.

This build ships with the same LiDAR HD canopy datasets we deploy: MNH 0.5 m rasters feed multi-resolution grids, on-demand tiles, and an IGN RGE ALTI safety net when LiDAR is absent.

LiDAR HD snapshot

MNH (height-above-ground) rasters keep building and tree canopies accurate; MNS or MNT would distort exposure.
Coverage remains in Lambert‑93 so parcel boundaries and tile indexing align with national cadastral data.
Each dataset captures equinox and solstice sun samples to highlight seasonal shade shifts.

Multi-resolution grids

Grids at 0.5, 1, 2.5 and 5 m let you zoom from parcel-scale context down to sub-metre shading detail.
Per-cell sun-hour summaries power the heatmap, variance readouts, and seasonal comparison views.
Structure masks preserve canopy height for 3D previews while keeping ground shading consistent.

Streaming & fallback

Tiles stream in as you zoom, keeping the initial load fast even with dense 0.5 m detail.
Where LiDAR is unavailable, the viewer downgrades gracefully to IGN’s national RGE ALTI 1 m model aggregated to 2.5/5 m cells.
Both data sources share colour ramps and statistics so switching layers stays visually seamless.

Sun path tips

Daily heatmap tips

Focus beds

Layers

Garden context

Developer