Surface Elevation Reader

Surface Elevation Reader helps surveyors, engineers, and GIS users quickly look up elevations from a TIN surface on mobile.

What it does

• Import LandXML surfaces (TIN) from AndroidManifest.xml files (e.g., exported from Civil 3D/LandXML workflows)

• Store surfaces locally so you can reuse them without re-importing

• Select between multiple surfaces you’ve imported

• Enter Easting and Northing to compute the surface elevation

• Optionally enter an Actual elevation to see Δ (Actual − Computed) for fast checks/QA

• Clear feedback when a point is outside the surface (not inside any triangle)

How it works

• Reads LandXML points/faces and builds the TIN triangle set

• Calculates elevation at the requested coordinate based on the triangle containing the point

• Saves imported surfaces to a local SQLite database on your device

Notes

• Works with coordinate order variations (Easting/Northing vs Northing/Easting) found in LandXML.

• No account required; data stays on-device.