NOTICE: is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum

I'm not sure if this is the right place to ask this, but figured there are a lot of people around here that are familiar with JOSM, so it can't hurt to try.

I am copying a relation to another layer so I can cut the file size down of the data I'm importing. However, when I copy the relation, create a new layer and paste it, the relation's ways and nodes all have an id of 0. How can I copy the relation while saving the original ids? Thanks

asked 21 Oct '14, 03:02

chillNZ's gravatar image

accept rate: 0%

edited 21 Oct '14, 22:41

aseerel4c26's gravatar image

aseerel4c26 ♦

When you copy nodes and/or relations, they are new objects (and therefore have temporary id 0 until they get assigned their definitive id after uploading). I don't think there's a way around that, but you could use other techniques:

  • Delete stuff you don't want from the current layer instead of copying stuff you want to a different layer. You might find the search function (Ctrl-F) helpfull for that.
  • Edit the *.osm file mannually (in a text editor, with tools like grep, or even with osm parsing libs) to remove the bits you don't want, instead of using josm.
permanent link

answered 21 Oct '14, 10:28

Vincent%20de%20Phily's gravatar image

Vincent de P... ♦
accept rate: 19%


Thanks, I had tried the deleting method but turns out JOSM doesn't like actually deleting the nodes and ways from the source file either. I understand why, but it means deleting the nodes does effectively nothing for me as the program I'm using still tries to parse the nodes with tag action=delete. After a bit of research I think I'll just use XMLStarlet to remove the deleted nodes from the file to reduce the import time.

(21 Oct '14, 21:58) chillNZ

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: 21 Oct '14, 03:02

question was seen: 3,518 times

last updated: 21 Oct '14, 22:41

NOTICE: is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum