[Talk-us] Network tag Re: Highway Shield Rendering

Michal Migurski mike at stamen.com
Sun Apr 8 17:54:46 BST 2012

On Apr 8, 2012, at 7:49 AM, Nathan Edgars II wrote:

> On 4/8/2012 10:27 AM, Craig Hinners wrote:
>> Chris Lawrence<lordsutch at gmail.com>:
>>> modifier=* would represent MUTCD-type banners attached to the shield
>> This is the first I've heard of this tag. I don't recall it being
>> discussed when we were hashing ideas around on this last summer. (Not
>> that that is reason to discount it.)
>> But what came out of that discussion was the following guidance: "ref"
>> will store "the unique identifier within a particular classification",
>> where "particular classification" is stored wholly in the "network" tag.
>> So, "network=US:US:Business"/"ref=13" and "network=US:US:Truck"/"ref=70"
>> both conform to that definition.
>> "network=US:US"/"modifier=Business"/"ref=13" does not.
> On the other hand, network=US:US ref=13 Business does.

For what it's worth, as a renderer I preferred the "modifier" tag when doing the Terrain shields:

Modifiers in the ref tag would be a close second; those typically need a lot of scrubbing and normalization anyway.

In the network tag would be the biggest hassle of all.

I'm working on a revision to the Terrain tiles, by the way, and I'm curious if I got anything obviously wrong with the highways that I should look at fixing. One thing I'll be attempting is to get the shields to behave a little less sloppily as they meander along routes, probably by staggering them more.


michal migurski- mike at stamen.com

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