Re: [josm-dev] How to present results of my conflation analysis
I've expanded the wiki page on this and added some screenshots. http://wiki.openstreetmap.org/wiki/Conflation/Nodes#JOSM_Implementation Suggestions and/or code are appreciated. -Josh On Tue, May 3, 2011 at 8:44 PM, Josh Doe wrote: > For anyone interested I've committed what I've done so far to the repository: > http://trac.openstreetmap.org/browser/applications/editors/josm/plugins/conflation > > It's far from a usable plugin, but in case I don't get back to it > someone else might find it useful. Right now all it does is find > matching pairs of nodes/ways/relations based on distance (using center > of OsmPrimitive.getBBox()), then creates conflicts for them, and draws > arrows between them. Like I said far from a usable plugin, more of a > proof of concept. > > -Josh > > On Thu, Apr 28, 2011 at 11:24 PM, Dirk Stöcker > wrote: >> On Thu, 28 Apr 2011, Josh Doe wrote: >> >>> Any ideas would be much appreciated! >> >> A long term plan is to use the mapview also to view subsets of the map. So >> we could have e.g. a dialog with two small sections, each showing a partial >> map. One map shows the old state, one map the new state. This would improve >> conflict resolution a lot and probably also be the solution for your tasks. >> >> If you would like to implement this ... >> >> Ciao >> -- >> http://www.dstoecker.eu/ (PGP key available) >> >> >> ___ >> josm-dev mailing list >> josm-dev@openstreetmap.org >> http://lists.openstreetmap.org/listinfo/josm-dev >> > ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] How to present results of my conflation analysis
For anyone interested I've committed what I've done so far to the repository: http://trac.openstreetmap.org/browser/applications/editors/josm/plugins/conflation It's far from a usable plugin, but in case I don't get back to it someone else might find it useful. Right now all it does is find matching pairs of nodes/ways/relations based on distance (using center of OsmPrimitive.getBBox()), then creates conflicts for them, and draws arrows between them. Like I said far from a usable plugin, more of a proof of concept. -Josh On Thu, Apr 28, 2011 at 11:24 PM, Dirk Stöcker wrote: > On Thu, 28 Apr 2011, Josh Doe wrote: > >> Any ideas would be much appreciated! > > A long term plan is to use the mapview also to view subsets of the map. So > we could have e.g. a dialog with two small sections, each showing a partial > map. One map shows the old state, one map the new state. This would improve > conflict resolution a lot and probably also be the solution for your tasks. > > If you would like to implement this ... > > Ciao > -- > http://www.dstoecker.eu/ (PGP key available) > > > ___ > josm-dev mailing list > josm-dev@openstreetmap.org > http://lists.openstreetmap.org/listinfo/josm-dev > ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] How to present results of my conflation analysis
On Thu, 28 Apr 2011, Josh Doe wrote: Any ideas would be much appreciated! A long term plan is to use the mapview also to view subsets of the map. So we could have e.g. a dialog with two small sections, each showing a partial map. One map shows the old state, one map the new state. This would improve conflict resolution a lot and probably also be the solution for your tasks. If you would like to implement this ... Ciao -- http://www.dstoecker.eu/ (PGP key available) ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
[josm-dev] How to present results of my conflation analysis
I've implemented the algorithmic part of a conflation tool in a JOSM plugin, pretty much following what I wrote down here: http://wiki.openstreetmap.org/wiki/Conflation/Nodes Right now I'm just using the Euclidean distance in the cost function, but we can of course add other costs like dissimilarity between key values. My big question now is how to present the results to the user, and to allow them to manually confirm/reject matches. All I've done so far is to create a new layer which draws arrows connecting the matched nodes/ways. However that's only a useful visualization tool but doesn't manage the actual conflation process. You can see the option dialog and arrow layer here: http://tinypic.com/r/23sw0u8/7 http://tinypic.com/r/jhd3j7/7 The first question is whether this tool should only merge data from one layer to another, or if it should allow syncing (i.e. bidirectional merging) between layers. The former is of course easier, and can possibly take advantage of existing functionality in JOSM, namely the conflict resolution tools. In fact I've added conflicts which appear in the conflict dialog when the "Conflation" layer is selected. Some things that are missing with that approach is to highlight the arrow connecting the matched nodes, and being able to select the arrow to conflate/resolve the pair of primitives. Also this conflation approach is slightly different from conflict resolution since I'm mostly concerned about resolving tags, and possibly center locations. Right now the conflict tools only support "resolving" conflicts between like primitives, i.e. Node->Node, however I need to allow any combination of Node, Way, or Relation. In other words I may want to match a GNIS feature node (from a fresh GNIS data set) to an existing feature in OSM that may be a node, area, or multipolygon. I'm not so much concerned about the geometry but rather the tags. Conflating geometry is much more complicated and is a future project. :) Any ideas would be much appreciated! -Josh ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
