Is it possible to use the derive-changes command to get an osc change file of the difference between two time periods and then convert that osc file to osm file for visualization purposes? Is it safe to assume that it will show only the data that was modified between the two time periods?


asked 02 Sep '17, 20:04

walshep's gravatar image

accept rate: 0%

converted 02 Sep '17, 20:07


Just a comment on the side: I hope you realize that geometry in the OSM data model is carried by the nodes only. So for example moving a node of a way will not create a new version of that way (adding of deleting a node, or changing the tags -will- create a new version).

If you are visualizing changes of OSM data between points in time you need to take this into account.

(02 Sep '17, 21:34) SimonPoole ♦

No, that doesn't work. The change file doesn't contain enough information to do the actual rendering.

permanent link

answered 03 Sep '17, 19:33

Jochen%20Topf's gravatar image

Jochen Topf
accept rate: 30%

I did attempt it to compare 2012 and 2013 data and I noticed that it didn't include everything I saw from a snapshot osm file of the 2013 data that I generated with the "time-filter" command. How would you recommend isolating just the changes? Would importing the data into QGIS and just processing it there to remove duplicates be the best option? Thanks!

(03 Sep '17, 22:03) walshep
Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 02 Sep '17, 20:04

question was seen: 1,277 times

last updated: 03 Sep '17, 22:03

powered by OSQA