tMapper WW1 Trenches

Image Georeferencing

Aerial Photographs, Field Sketches, Trench Maps

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Welcome! This site lets you upload an aerial photo, field sketch or map extract and overlay it onto a modern map. There are 4 steps:

  1. Upload an image file (JPG or PNG) from your hard drive (if it's not too large)
  2. Crop any white space or margins
  3. Tag it — at least 3 locations, then ...

Zoom, Stretch, Rotate, Scale!

We'll load it onto a modern map and you can rubbersheet it to fit.

Tutorial

Jump back and forth or come back later and pickup where you left off.

Instructions

Note: Cookies must be enabled in your browser.
Crop
Tag
Rubbersheet
Administration

Step #1 - Upload

Step #2 - Crop

Step #3 - Tag

Step #4 - Rubbersheet

Toolbar Options 
  1. Move image
  2. Scale image
  3. Rubbersheet (distort-corners)
  4. Rotate
  5. Scale-rotate
  6. Unlock / Lock image
Sub-Notes
  1. Time spent determining the exact corners will guide how close our initial fit is.
  2. If you put the corner in as a trench map reference, such as 57c.J.16.b.3.1, then we will calculate the latitude and longitude for you.

Acknowledgements

All content on this website is © tMapper 2020

We use utilities from original Copyrighted Material or as licensed under Creative Commons or similar

To get in touch with us use the feedback form on the tMapper website

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tMapper WW1 Trenches

Step #2 — Crop Image for Tagging


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