0

I am trying to map 600 shapes in QGIS from analogue ground maps. I have been using the Freehand raster georeferencer tool, but its really cumbersome when it comes to scaling files (often distorts and skews).

Does anyone know a better plugin for QGIS to do this work most accurately and with locking proportions (as known in Adobe software) to scale the placed PDF/image onto QGIS to digitise it?

enter image description here

enter image description here

Improve this question
2
  • 1
    Is there a reason you're not using the inbuilt Georeferencer? Commented Mar 28 at 13:17
  • Likely because I am a beginner of QGIS. But opening it, I have not found a way to do what I need to do? I am importing screenshots or PDFs with maps and then I position/scale and trace them. Does the inbuilt Georeferencer achieve this? I am not sure it would? Added an image for clarity on what I have to do here. Commented Mar 31 at 12:33

1 Answer 1

Reset to default
0

This are two different Jobs:

  1. Georeference
  2. Digitize features from the georeferenced raster (PDF, Screenshot...)

For 1) The Inbuilt (Layer-> Georeferencer) Tool does everything you need. Read the official documentation to get an idea about the different algorithms for transformations (I usually use Thin Plate Spline)

For 2) Create a layer (Layer-> Create Layer) and draw in it the features you want digitized.

Improve this answer

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.