Performing Vector Affine Transformation using QGIS?

Question

Due to an incorrect datum coordinates, I need to move a large number of elements in shapefiles by a specific distance. In 2.8 I would have used the Affine Transformation tool, but this does not appear to be available to QGIS 3.6.

Is there another tool or process I can use?

Answer 1

There's also the GRASS tool v.transform (in the processing toolbox), which

Performs an affine transformation on a vector layer.

Make sure you're running the QGIS version that says "with GRASS" in the name, otherwise you'll get an error message when trying to run a GRASS tool.

Note: I found this tool by searching the processing toolbox for the term "affine." The processing toolbox searchbar is a great place to go when you have a question along the lines of

• "Is there a tool that does this thing?" or
• "Where's the tool that used to be called this name?" or
• "Where's the this name tool that used to be in the that name menu?"

Answer 2

You could use the Translate tool from the Processing Toolbox:

This algorithm moves the geometries within a layer, by offsetting them with a specified x and y displacement.