Algorithm Adventures ShelfSurvey Tool · S-02Points to Earth Report bug

Points to Earth

Point file to Google Earth

Setup · zone + units

NAD83 SPC

Zone

File units

Drop a PNEZD file or choose a file · CSV TXT

Drop a point file to convert.

Results

Points: —
Skipped: —
Header: —

Point	Grid N	Grid E	Latitude	Longitude	Description

Converted points list here once a file is dropped.

Docs

Using Points to Earth

Pick the NAD83 State Plane zone and the units your file is in.
If the file is in surface coordinates, set the scaling and combined factor.
Drop a PNEZD file on the drop box, or choose one. Check the table and skipped rows, then download the KMZ or the grid CSV.

File format

Comma-separated, one point per line: point, northing, easting, elevation, description. Z and D are optional; quoted descriptions may contain commas.

1,5000.00,5000.00,100.00,CP
2,5123.45,5210.88,,IRF
3,5301.20,4987.65,,"IR, CAP"

Header and skipped rows

A text row before the first point is kept as the header and written back to the grid CSV. Lines starting with #, ; or // are ignored. Rows with fewer than three fields, or a northing or easting that is not a number, are listed with their line number and left out.

Coordinate scaling

Leave at No scaling for grid coordinates. Surface → Grid multiplies N and E by the combined factor (grid ÷ surface) before converting; Grid → Surface divides, for the surface values in the placemark balloons. Scaling is about 0,0 and the factor must be between 0.95 and 1.05.

Datum

Latitude and longitude are NAD83. Google Earth draws them on WGS84, about 1 m apart. Fine for clamp-to-ground placemarks; not for staking.

Output

KMZ: one placemark per point, named by point, with description, surface and grid N/E, elevation and latitude/longitude in the balloon. Grid CSV: PNEZD with grid northing and easting. Both include every point, not just the rows shown.

Zones

120 NAD83 zones from the EPSG registry. Alaska zone 1 (oblique Mercator) is not supported.

What stays here / what leaves

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Points to Earth

Setup · zone + units

Check zone and units

Results

Skipped rows