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I've created a generated JOSM file, and I want to test it out to see if it works. How can I open it along with the map data in order to show what has changed?

EDIT: Perhaps I haven't explained what I want to do correctly. I'm going to expand on it a little bit in order to provide some clarity.

I have some official building plans that were converted to OSM format for a certain building complex. I wanted to have them replace the current buildings in OSM (and also add ones that weren't there yet) because they are more accurate. I wrote a short script that compares the buildings as shapes and then creates a JOSM file that replaces certain buildings that were deemed to be matches with my data. I then plan to manually clean it up and make sure it is fit for submission.

I want to be able to apply these this generated file to OSM. The file has additions modifications and deletions. Is there a way I can merge them or something?

asked 11 Nov '13, 20:48

mwr54's gravatar image

accept rate: 0%

edited 12 Nov '13, 18:38


Just to avoid any misunderstandings, if you are planning to upload a generated file to OSM then you will have to follow the import and/or mechanical edit policies which include discussing the scope and contents of your file before you upload.

(11 Nov '13, 22:48) Frederik Ramm ♦

I have been looking at that page, and I don't plan to have a bot update sections by itself. I'm using a script to help in the editing process. Someone is going to go through by hand and make sure everything is correct.

(12 Nov '13, 18:30) mwr54

side note: "official building plans" - are they public domain? free of any copyright?

(12 Nov '13, 23:12) aseerel4c26 ♦

Yeah, they're free.

(13 Nov '13, 17:19) mwr54

"apply these this generated file to OSM" and "Is there a way I can merge them or something?" is now your question? Quite a different one. Please search and if you cannot find, ask it in a new question.

(13 Nov '13, 17:57) aseerel4c26 ♦

Open it in JOSM and underlay the OpenStreetMap Mapnik Layer (you find it at Imagery).
You can also press ctrl-f, enter modified in the search window and search for this value. Everything what changed (but hasn't been uploaded) will get highlighted.


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answered 11 Nov '13, 21:41

malenki's gravatar image

accept rate: 6%

I've updated my original post to be more clear.

(12 Nov '13, 18:38) mwr54

I am not fully sure if I understand your question correctly, maybe you can clarify.

  • you can just hit "upload" (and do not click OK) and see the list of changed objects.
  • you can use the Find feature (ctrl+F) to select (highlight) all modified or new objects. Just click the wished tag in the suggestion in the find window
  • you can switch to some other internal map style to see a different appearance of your (modified) data
  • you can switch on an OSM mapnik background layer (maybe make it a bit darker with the transparency slider), to see the old data
  • You can download the current OSM data to a new layer (use the tick box on the bottom of the download window) to visually see the differences.
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answered 11 Nov '13, 21:43

aseerel4c26's gravatar image

aseerel4c26 ♦
accept rate: 18%

edited 12 Nov '13, 10:36

I've updated my original post to be more clear.

(12 Nov '13, 18:38) mwr54

Answer to the updated question:
* make sure you are allowed to use the data you want to import into OSM
* make sure you follow the Import Guidelines

For to you wish to comparison I cannot help much more as what I pointed out above. Maybe it is also helpful for you to download the unaltered OSM data into one layer and open the date you created in an other layer above the previous one so you can see differences of the outlines.

Maybe someone comes around with a more sophisticated answer...

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answered 13 Nov '13, 21:29

malenki's gravatar image

accept rate: 6%

meta: I do not see much usefulness in mixing answers to different questions. That is not good for people who find this question in the future. Do you see this in a different way?

(13 Nov '13, 22:04) aseerel4c26 ♦

the question seems to be now at merge-generated-josm-with-osm-data-conflicts.

(14 Nov '13, 21:02) aseerel4c26 ♦

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question asked: 11 Nov '13, 20:48

question was seen: 3,636 times

last updated: 14 Nov '13, 21:02

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