On 10.12.2012 14:43, Henning Scholland wrote:
Hi Felix
Am 10.12.2012 14:20, schrieb Felix Hartmann:
road_speed=4 === set current road_speed to 4 or lower - if maxspeed is lower, but not higher (new behaviour) You mean: road_speed>4 {set road_speed=4 } No I don't mean road_sped>4 -- I actually mean not an action part, but the part in the square brackets []. Same for lower down. e.g. [0x0c road_class=2 road_speed=4 resolution 24 continue] road_speed_fixed=4 == set current road_speed to 4 no matter maxspeed, recommended speed, or other tags (same behaviour as currently using --ignore-maxspeeds) You mean: ...=... {set road_speed=4 } road_speed_variable == 4 set to current road_speed 4 if no maxspeed or other tags exist (what other tags are actually existing in osm yet?) - decrease or increase it based on the tags/maxspeed (current behaviour, at least until there are tags like average speed in OSM). I don't understand the reason for it. In general I think everything is solvable with current style-functionality. Can you give an example, were it isn't possible to handle it? Well, the current style-functionality would require much more lines in your style, for the same output. Let's assume you use --ignore-maxspeed (because otherwise I don't know at all what happens, if you use rules to change maxspeed),
a simple line like highway=primary [0x03 road_class=2 road_speed=6] would need to be rewritten to highway=primary & maxspeed>90 [... highway=primary & maxspeed>70 [... and so on. On the other hand if you currently don't use --ignore-maxspeed then you would need to do the following (and hope it works which I don't know): highway=primary & maxspeed > 90 {set maxspeed=89} and so on, if you want it to depend on other tag combinations, that means one additional line again. So no, the current treatment of maxspeed/speed in general is far too complicated and not working well. Using a different notation system in the [ ] would make it much easier and better suited, and no need for a commandline switch anymore.
Henning
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