https://wiki.openstreetmap.org/wiki/Overpass_turbo/MapCSS

http://overpass-turbo.eu/s/e7F

Dave F.



On 01/02/2016 17:02, Gregory wrote:
Cheers Dave, the "sets" feature of Overpass is good to know about.

However the set logic isn't what I'm after as such.
I want to all schools that have an isced:level tag to be blue dots, all the schools without an isced:level tag to be red dots. You could display other comparisons, such as schools with a name tag as blue dots and schools without name tags as red dots.

Overpass is primarily an fancy export tool, so this feature isn't probably beyond it's scope/objective. If I really wanted I could use Overpass to export all schools and then use QGIS to colour them depending on what tags are present or not.

From DH1,
Gregory.

On 1 February 2016 at 16:50, Dave F <[email protected] <mailto:[email protected]>> wrote:

    Re 1c)
    Unsure what two queries you want to compare, but OT does allow
    difference comparisons by first saving each query result to a
    variable:

    http://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#Sets

    http://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#Difference

    Example:
    http://overpass-turbo.eu/s/e7s

    This returns all edits from the last day that weren't by me.
    Obviously you'd need to change it to your user name to see any
    results & you can vary the day/hour.

    Dave F.




    On 01/02/2016 16:16, Gregory wrote:
    Hello,

    1) I think isced:level is really helpful, as I've known people
    wanting a list of "all primary schools nearby" for various jobs.
    Is there a map/list that shows schools with that tag or not?
    Maybe something like ITO World's maps?
    1b) Ah, they have one for name/no-name, might be good to request
    isced:level there too (or if it has the ID).
    http://product.itoworld.com/map/6
    1c) I'm being silly and forgetting how easy Overpass API is now.
    But it doesn't allow two queries at once and to visually compare
    the difference. http://overpass-turbo.eu/s/e7o

    2a) What tag are people using for the ID?
    2b) Presumably the only way to get the/an ID is from the gov.uk
    <http://gov.uk/> data? It's copyright doesn't allow use, but
    perhaps using it for the ID is okay? So far this quarter I have
    been using OS StreetView or googling for a website as a name
    source. As a result, all the schools I've edited/added in the
    last month have a "website" tag.

    Btw, County Durham is very annoying. Since maybe 3 years ago they
    have been combining schools (juniors & infants into primary, or
    two villages now having 1 school to share, plus all the
    academy-type name & management changes). Probably a good time for
    this enjoyable project then! Meanwhile my landlady's job involves
    visiting schools all over the county. Anyone got a long lasting
    camera & a GPS logger I can secretly strap to her car/bag?

    From Durham,
    Gregory.


    On 1 February 2016 at 14:47, Rob Nickerson
    <[email protected] <mailto:[email protected]>> wrote:

        All,

        We've a few of way's of counting how many people are involved
        with the quarterly project to map schools. As such I have
        updated the wiki to focus on comments rather than the raw
        numbers (e.g. which areas are you mapping, how else are you
        helping). Feel free to update.

        
http://wiki.openstreetmap.org/wiki/UK_Quarterly_Projects#Who.27s_involved.3F

        Latest data from the #OSMschools tag is here:
        
http://www.mappa-mercia.org/2016/02/whos-involved-edits-to-openstreetmap.html

        Harry's tracker is great as it counts edits to amenity=school
        features:
        
http://harrywood.dev.openstreetmap.org/diffreader/schools/index.php?filter=uk

        By features we've mapped nearly 1250 schools as ways, removed
        nearly 1000 schools mapped as nodes (either converted to a
        way or removed duplication). Overall that is 250 "new"
        schools mapped. This is a minimum as I don't know how many of
        the 1000 nodes removed were duplicates.

        
https://docs.google.com/spreadsheets/d/1G9KXfp4Ho3fVROO9MxotcYTydl9CEXB_fi5ko2pM5Kc/edit#gid=1336142515

        Happy mapping
        *Rob*

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-- Gregory
    [email protected] <mailto:[email protected]>
    http://www.livingwithdragons.com


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