Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Roy Wallace
On Wed, Dec 30, 2009 at 3:01 AM, Matthias Julius wrote: > > If you know the actual incline you can tag it with its value.  If you > have to estimate it anyway then a hard definition on what is steep is > not worth that much anymore. > > It is a subjective classification - not more and not less.  O

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Steve Bennett
On Wed, Dec 30, 2009 at 5:20 AM, Anthony wrote: > > Ideally we'd have elevation tags on each node, and incline tags would then > become redundant. > You'd need a very fine grained elevation model for that to be the case. One reason people want steep inclines marked is to determine wheelchair acc

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Anthony
On Tue, Dec 29, 2009 at 12:01 PM, Matthias Julius wrote: > Roy Wallace writes: > > If you want to define "steep" as > > meaning "greater than or equal to 15% incline", THEN it has meaning. > > But until then, it's meaningless. > > If you know the actual incline you can tag it with its value. If

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Matthias Julius
Roy Wallace writes: > On Tue, Dec 29, 2009 at 2:09 PM, Matthias Julius wrote: >> >>> But that's my point - sure, you don't want to lose "semantics" i.e. >>> "meaning". But IMHO "steep" is *meaningless*. >> >> Why? > > Because it's not well defined. If you want to define "steep" as > meaning "gre

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Anthony
On Mon, Dec 28, 2009 at 11:25 PM, Matthias Julius wrote: > While a road might be a pre-requisite for a speed bump I wouldn't say > that the road defines the speed bump. > The orientation of the road defines the orientation of the speed bump, though. ___

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Steve Bennett
On Tue, Dec 29, 2009 at 9:01 PM, Liz wrote: > On Tue, 29 Dec 2009, Roy Wallace wrote: > > An incline is more or less a gradient. From Wikipedia: "The gradient > > of H at a point is a vector pointing in the direction of the steepest > > slope or grade at that point." A point can have a gradient,

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Richard Bullock
> On Mon, 28 Dec 2009, Roy Wallace wrote: >> Also, incline=* is still mathematically valid for nodes to indicate >> the instantaneous incline at that point, so I don't see a problem with >> that. > > I might be old, I might have gone to school in the Dark Ages, but a point > cannot have an incline.

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Liz
On Tue, 29 Dec 2009, Roy Wallace wrote: > An incline is more or less a gradient. From Wikipedia: "The gradient > of H at a point is a vector pointing in the direction of the steepest > slope or grade at that point." A point can have a gradient, and thus > an incline. you'd better read better than t

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Frederik Ramm
Hi, Liz wrote: > Oh, the writer of Wikipedia "point geometry" agrees with me. Then he must be old and have gone to school in the Dark Ages as well! Come on Liz, you know that Wikipedia is one of those projects where any nitwit can... ehm... ;-) Bye Frederik ___

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Roy Wallace
On Tue, Dec 29, 2009 at 7:43 PM, Liz wrote: > > I might be old, I might have gone to school in the Dark Ages, but a point > cannot have an incline. An incline is more or less a gradient. From Wikipedia: "The gradient of H at a point is a vector pointing in the direction of the steepest slope or g

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Liz
On Mon, 28 Dec 2009, Roy Wallace wrote: > Also, incline=* is still mathematically valid for nodes to indicate > the instantaneous incline at that point, so I don't see a problem with > that. I might be old, I might have gone to school in the Dark Ages, but a point cannot have an incline. "A spati

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Andre Engels
On Tue, Dec 29, 2009 at 9:45 AM, Frederik Ramm wrote: > Hi, > > John Smith wrote: >>> You certainly cannot tell the orientation of the speed bump from the >>> node alone... >> >> Ummm speed bumps aren't usually anything but in line with the road, > > Exactly. Just like inclines. But there's a big

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Frederik Ramm
Hi, John Smith wrote: >> You certainly cannot tell the orientation of the speed bump from the >> node alone... > > Ummm speed bumps aren't usually anything but in line with the road, Exactly. Just like inclines. Bye Frederik ___ Tagging mailing list

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread John Smith
2009/12/29 Frederik Ramm : > But isn't that the case with lots of nodes? The "place=city name=London" > node, does it describe something that "is the node itself", or rather > lend a name to all that is around it? The node should be part of a relation/boundary describing the area that London is co

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Frederik Ramm
Hi, Matthias Julius wrote: > The difference is that all those tags describe specific objects while > incline is a property of an object which is not the node itself. But isn't that the case with lots of nodes? The "place=city name=London" node, does it describe something that "is the node itself

Re: [Tagging] Should 'highway=incline[_steep]' be discouraged?

2009-12-29 Thread Frederik Ramm
Hi, Steve Bennett wrote: > Of course, everyone can tag what he wants anyway. The question is what > we want to encourage. > > This is like saying "Anyone can drive at whatever speed he wants, the > question is what we want to encourage." - ie, true, but fairly > meaningless. Why? Any