SOILPROP MAPPER

Input: Lat, Long + soil variables (ECAS, ECAD, N, P, K, ...) → visualize points + IDW raster map.

1. Import data (CSV)

CSV file (order: Long, Lat, ECAS, ECAD, N, P, K, ...)

No data imported.

Header names are flexible: lon/long/longitude, lat/latitude, etc. If names are unknown, the app will treat column 1 as Long and column 2 as Lat.

1b. Add points (Excel)

Excel file (Lat/Long columns). Supported headers: lat/latitude, lon/long/longitude/lng.

Added points will read the current IDW raster value (same variable as legend) and show it in a popup.

2. Map settings

Map variable

Classification

Show data points

Show points inside polygon only

Polygon fill ON/OFF

Polygon name label ON/OFF

Points are colored by class. Draw polygon (tools on map) to compute area & Min/Max/Mean/SD for all variables.

3. Area information

✏️ Draw polygon → stats auto-update

Area name (optional)

No polygon drawn.

Export AOI stats as Excel (.xlsx).

📦 Save / Import polygon (GeoJSON)

Import polygon file (.geojson/.json)

GeoJSON stores polygon geometry + name, so user can reopen the same AOI later.

4. IDW interpolation (smooth raster)

Power (p)

Approx. cell size (m)

Max neighbors (k)

Clip

Raster opacity

Current: 0.60

Surface probe on raster (click + drag)

After running IDW, enable this to query interpolated values anywhere on the raster.

Zone info tooltip (click + drag)

Show zone number (based on legend class) + % coverage + area (ha) inside polygon.

IDW is rendered as a smooth image. Use polygon clip for AOI only.

CSV tip: order your columns as Lat, Long, ECAS, ECAD, N, P, K, followed by any other numeric variables.