Yutao Liu GIS Tools

GIS Tools

Online GIS tools

Survey parameters, batch coordinates, tracks, tables, and map measure. All math runs locally and does not replace licensed survey products.

Aerial survey

Survey

UAV survey overlap and area calculator

Enter flight height, camera specs, forward/side overlap, and area to estimate GSD, footprint, photo count, and duration.

Map measure

Measure

Measure distance, area and angle on a map

Click the map to add points. Draw a polyline for distance, a polygon for area, or three points for an angle.

Coordinates

Coordinates

Batch coordinate converter

Paste or upload a CSV, choose a conversion, and download the result.

Files

Convert

CSV and geospatial file conversion

Select longitude and latitude columns, preview, then download.

 GPX

GPX track cleaning

Upload a GPX file, choose cleaning options, then download.

 EXIF

Aerial photo EXIF extraction

Select multiple photos, parse EXIF locations, and download a point table.

Other regions

China

GCJ02 / WGS84

China map offset conversion for internet maps (Amap basemap).