Hi, The duplicate building nodes can be (more or less) efficiently fixed with JOSM. When you install the Validator plugin (perhaps it's already done by default by now), you'll see which nodes are duplicated. The simplest way to solve them would be to use the Fix button.
However, generally it is better to be prudent, because a series of duplicate nodes indicates that a way is likely duplicated as well. Those cases need to be resolved as well. When using the Validator plugin, overlapping ways are also detected, but they're considered a mere warning. I believe that a way is only considered when the nodes are the same. So, you'll either get duplicate nodes or overlapping ways. In JOSM you can also make a selection (graphically, or using the Search form), and when you use the Validator with a selection, only the selected elements are being validated. So, you can search for Canvec buildings only. NB: it is not possible using boolean operators (the 'OR' operator often seems to fail), but you can perform multiple searches in a row, and choose how the query should affect the selection (replace, add, remove, search within). An example, to select Canvec buildings: * Select 'building=yes' (without quotes), with 'replace selection' checked. * Select "canvec:CODE" (with quotes!), with 'find in selection' checked. This will select buildings imported which have a 'canvec:CODE' attribute. Note that the current rules.txt file doesn't include a "buidling=yes" attribute for all buildings. When doing the import near Quebec City (tile 021L), I added that code manually. All cases I have evaluated are indeed buildings. And it wouldn't make sense to put non-buildings in the buildings layer. Maybe Sam can comment on this. Speaking about duplicate nodes: I still need to use the Validator to solve them in the Charlevoix area. I imported the forested areas without merging them in existing OSM data, because there were no existing forests. However, there were already water features adjacent to those wooded areas. So, a note to people doing imports: please make sure that any validation errors are resolved as much as possible. Not all errors can be resolved (like some incorrect tag/value errors), but the graphical errors can. And re. warnings and other things found during validation: that is almost impossible. Maybe the validation rules of JOSM need some finetuning. Cheers, Frank _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
