[OSM-talk] JOSM goes multi data layer

Christof Dallermassl cdaller.hw at gmx.at
Thu Jul 19 07:15:46 BST 2007

Measurement plugin is broken but not in svn, so I could not fix it.


Immanuel Scholz schrieb:
> Hi,
> The latest JOSM now supports multiple data layers again. This was 
> requested since about the day after I removed the feature over a year 
> ago ;-).
> As another big data source hits the main database (AND's 
> netherland-parts-of-china-and-india map) the feature got more urgent. I 
> think it is especally cool for people who want to compare two unrelated 
> datasets ;-).
> Every file open and every download opens the data into a new, seperate 
> layer now. You can merge these layers using the merge button in the 
> layer dialog. By selecting an layer in the layer dialog, you can switch 
> the current editing dataset as needed.
> Now for the bad news:
> As the feature is a ground shaking one for the whole JOSM data holding 
> structure, I expect many new bugs introduced :-(. If you run into 
> problems that block you from mapping, please revert to the latest 
> release from last week.
> For Plugin writers:
> Plugins, that used Main.ds could be affected as well. Main.ds now holds 
> the dataset of the current editing layer rather than all the data 
> together. If you are a plugin writer and your plugin is broken and you 
> cannot fix it to work with josm-latest *and* the josm-1.5 release, 
> please link a version which is working with the latest release at 
> http://josm.openstreetmap.de/wiki/Plugins/LatestRelease.
> Ciao, Imi.
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Christof Dallermassl
cdaller dot hw at gmx dot at

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