[OSM-dev] osmosis --bb/--bp with completeWays

[Karl Newman]

On Dec 21, 2007 7:05 AM, Frederik Ramm <frederik at remote.org> wrote:
> Hi,
>
>    this is probably a question to Karl Newman: In Osmosis, when you
> extract an area with complete-ways, it does this:
>
> // If complete ways are desired, stuff the node into a file
> if (completeWays) {
>    allNodes.add(container);
> }
> // Only add the node if it lies within the box boundaries.
> if (isNodeWithinArea(node)) {
>    ...
>
> I wonder if it would not be sufficient to store all nodes that are
> *not* in the box bondaries in allNodes? After all, you need allNodes
> to dump additional nodes later on; but the ones you have alrady added
> will not get added again so you will not need them...?
>
> Bye
> Frederik

Frederik,

Yes, I considered that (just immediately passing the nodes that are
inside the bounding box and saving the rest) but it would disrupt the
order of the nodes (and since there's a sort task I figured the order
is important to somebody), so I opted to just stream everything to a
file and then retransmit the same stream (but filtered by area) later.
Brett's proposal to use a data set class backed by SQLite or similar
could really help this task.

Karl