[josm-dev] Generating new dataset

[Malcolm Herring]

On 18/02/2014 14:07, Simon Legner wrote:
> Maybe the quickest way is to open the dataset in JOSM, select all
> objects with Ctrl+A, copy them with Ctrl+C, create a new dataset with
> Ctrl+N, and paste the copied objects with Ctrl+V. Then, to all objects
> should be assigned a new ID.

I should have mentioned that this is a JOSM plugin doing the operation. 
The plugin has created the data set with "DataSet data = new DataSet()” 
and needs to add primitives with “data.addPrimitive()”. It is the 
creation of these primitives that I am unclear of & how to maintain IDs 
that are cross-referenced by other primitives in this new datset.