<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">>The columns in a shapefile's attributes have a fixed width, and that<br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div>>width is reserved for each shape. So the space usage will be<br>>approximately equal between using a single, concatenated column and<br>>multiple columns.<br><br>>What did you intend to gain by concatenating the columns?<br><br>What I was wondering about in particular was how to make the shapefile DBF file fit in with OSM's
data format (where there is technically a limitless number of valid tags). Having one attribute column per OSM tag would presumably mean that any shapefile generating application would only be able to use a particular subset of
tags. Has anyone else thought of this issue? I guess the best solution would just be to use the most commonly-used tags.<br><br>Nick<br><br>_______________________________________________<br>dev mailing list<br>dev@openstreetmap.org<br><a rel="nofollow" target="_blank" href="http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev">http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev</a><br></div></div><br></div></div><br><span>Send instant messages to your online friends <a target="_blank" href="http://uk.messenger.yahoo.com">http://uk.messenger.yahoo.com</a> </span></div><br></div></div><br>Send instant messages to your online friends http://uk.messenger.yahoo.com </body></html>