Thanks for that.
If I understand TMS correctly, it serves image tiles, right? Or can it also
serve GeoJSON vector (which might be easier)?
If so, the tiles would be transparent PNGs, with:
- the lines on them
- a fine grid level (say, for the 10 digit, normal precision, grid)
- the next larger grid level (for the 8 digit grid)
- labels
- the row and column digits for the fine grid
- the larger grid code (in the center or in the corners or something)
The grid levels displayed will depend on the zoom level. (We might want to
include a parameter so you can "nudge" it up or down from the default, but
in comparison to everything else that would be easy.)
Does that sound right?
BTW if anyone knows *anything* about writing a TMS server, and might be
able to help with advice, that would be great.
Ngā mihi,
Doug Rinckes, Technical Program Manager, Google Switzerland GmbH; 9G8F+6W Zü
rich <https://www.google.com/maps/search/9G8F%2B6W%20Z%C3%BCrich>
On Mon, 13 Aug 2018 at 16:41, Blake Girardot <bgirar...@gmail.com> wrote:
> HI Doug,
>
> We need the scale-able grid like we get with graticules now.
>
> For us to use it we need to see it, understand it and use it at scale, not
> at the look up an individual building level, all though that will come from
> having access to it in our existing tools.
>
> Please see this tweet of a mock of up on how we work and why having a
> graticule like grid overlay in our tools would make such a difference to
> our ability to evaluate and use:
> https://twitter.com/BlakeGirardot/status/1028689726088388609
>
> Having it as a TMS layer would it it into a lot of our tools right away as
> they all support TMS now, especially the ones we use for large and small
> scale project planning.
>
> I hope that helps, I really look forward to getting OLC support into more
> of the open geospatial tools that humanitarian organizations around the
> world use every day!
>
> Cheers,
> Blake
>
> On Mon, Aug 13, 2018 at 7:15 AM, Doug Rinckes <drinc...@google.com> wrote:
>
>> I think generating something like this is easily possible. I'm happy to
>> open this up to understand what you would actually like it to output.
>>
>> Specifically, do you need something like a TMS service, or if there was a
>> web form where you entered the coordinates and got a geojson or kml file
>> would that be sufficient?
>>
>> Ngā mihi,
>> Doug Rinckes, Technical Program Manager, Google Switzerland GmbH; 9G8F+6W
>> Zürich <https://www.google.com/maps/search/9G8F%2B6W%20Z%C3%BCrich>
>>
>>
>> On Sun, 12 Aug 2018 at 00:55, Blake Girardot <bgirar...@gmail.com> wrote:
>>
>>> Hi Doug,
>>>
>>> What Emmor and Pablo are asking for is the same thing I need. Some of us
>>> would like to visualize the grid in our existing tools, which means either
>>> a KML, shapefile or a TMS end point to a transparent rendering of them we
>>> can use in our tools.
>>>
>>> Generating one ourselves is a bit beyond many of us, well, at least
>>> myself.
>>>
>>> This same topic, OLC grid for overlaying also applies to our integration
>>> with other tools like Fieldpapers and the HOT Tasking Manager.
>>>
>>> So it would be great to figure out a good way make this possible. It is
>>> just a tiny bit beyond me.
>>>
>>> I love the examples you posted up thread, we just want the same sort of
>>> grid in our tools, kml, shapefile, geojson, TMS layers all work for us.
>>>
>>> Cheers!
>>> Blake
>>>
>>> For reference, the issues I created related to this on other projects I
>>> contribute to:
>>>
>>> https://github.com/hotosm/tasking-manager/issues/1158
>>>
>>> https://github.com/fieldpapers/fieldpapers/issues/288
>>>
>>> Cheers,
>>> Blake
>>>
>>> On Wednesday, March 7, 2018 at 4:32:49 AM UTC-5, Doug Rinckes wrote:
>>>>
>>>> Hi Emmor,
>>>>
>>>> You can turn on the grid display using the map at plus.codes/map/. As
>>>> you zoom the grid redraws to more or less detail. We're also working on
>>>> other material but I can't give timelines yet.
>>>>
>>>>
>>>> Ngā mihi,
>>>> Doug Rinckes, Technical Program Manager, Google Switzerland GmbH;
>>>> 9GHJ+P88 Zürich
>>>> <https://www.google.com/maps/search/9GHJ%2BP88%20Zürich>
>>>>
>>>> On 6 March 2018 at 18:56, Emmor Nile <emmor...@gmail.com> wrote:
>>>>
>>>>> Plus Codes appears to be a promising tool to help people locate
>>>>> themselves on the planet. It looks much better than other systems like
>>>>> W3W, MGRS, & Maidenhead.
>>>>> I approach this as a Geospatial professional and don't quite
>>>>> understand the structure yet.
>>>>> Are there some graphics showing the OLC nested structure? The code
>>>>> isn't helping my understanding.
>>>>> I would like to be able to download GIS polygon layers of the 4, 6,
>>>>> and 8 digit codes.
>>>>>
>>>>> Emmor
>>>>>
>>>>> On Monday, October 23, 2017 at 3:55:08 AM UTC-7, Doug Rinckes wrote:
>>>>>>
>>>>>> Yes, or you can do it just with a couple of loops and you might not
>>>>>> need the library at all. The grid size is defined in degrees, so if you
>>>>>> wanted the xxxxxxxx+xx grid between 40 and 41 degrees latitude, and -122
>>>>>> and -121 degrees longitude, you just need a grid spaced at 0.000125
>>>>>> degree
>>>>>> intervals:
>>>>>>
>>>>>> for lat = 40; lat <= 41; lat = lat + .000125 {
>>>>>> for lng = -122; lnt <= -121; lng = lng + .000125 {
>>>>>> // lat & lng denote the SW corner of a .000125x.000125 degree
>>>>>> area for 10 digit OLC resolution
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> A couple of points:
>>>>>>
>>>>>> - if you want to draw a grid, your file will be much smaller if
>>>>>> you use lines than if you use polys. A single 20x20 grid needs 42
>>>>>> lines,
>>>>>> but 400 square polys.
>>>>>> - depending on the programming language, it turns out that adding
>>>>>> .000125 to a number 8000 times may experience rounding errors (hi,
>>>>>> javascript!) making it very slightly less or more than the amount in
>>>>>> the
>>>>>> loop. You should be able to ignore this if you change the condition
>>>>>> in the
>>>>>> loop to something like lat <= (41 - 1e-10)
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Doug Rinckes, Technical Program Manager, Google Switzerland GmbH;
>>>>>> 9GHJ+P88 Zürich
>>>>>> <https://www.google.com/maps/search/9GHJ%2BP88%20Zürich>
>>>>>>
>>>>>> On Mon, Oct 23, 2017 at 11:55 AM, Pablo <geogra...@gmail.com> wrote:
>>>>>>
>>>>>>> Ok.
>>>>>>> I was thinking on something like download by OLC accuracy level, and
>>>>>>> get a GIS vector file with more or less polygons /points depending on
>>>>>>> this
>>>>>>> level (11, 10, 8...)
>>>>>>> As I understand, by the moment the only way I can get it is
>>>>>>> specifying a network of points, and generating it by myself with the
>>>>>>> libray, isn't it?
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>>
>>>>>>> 2017-10-23 11:41 GMT+02:00 Doug Rinckes <drin...@google.com>:
>>>>>>>
>>>>>>>> Phil's right - downloading "the grid" for an area is a bit tricky,
>>>>>>>> but one thing we have been working on is providing a KML network
>>>>>>>> link
>>>>>>>> <https://developers.google.com/kml/documentation/kml_tut#network-links>,
>>>>>>>> so that apps that support KML, like Google Earth, will be able to show
>>>>>>>> a
>>>>>>>> grid that depends on the zoom/area.
>>>>>>>>
>>>>>>>> This isn't yet ready to push out but here's a couple screenshots:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Doug Rinckes, Technical Program Manager, Google Switzerland GmbH;
>>>>>>>> 9GHJ+P88 Zürich
>>>>>>>> <https://www.google.com/maps/search/9GHJ%2BP88%20Zürich>
>>>>>>>>
>>>>>>>> On Mon, Oct 23, 2017 at 11:06 AM, Philip Newton <
>>>>>>>> philip...@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> On 23 October 2017 at 10:46, Pablo Pardo <geogra...@gmail.com>
>>>>>>>>> wrote:
>>>>>>>>> > I as wondering if is
>>>>>>>>> > possible to download all the grid in any GIS format (KML,
>>>>>>>>> geoJSON...)
>>>>>>>>>
>>>>>>>>> That's a bit like asking whether it's possible to download the
>>>>>>>>> longitude-and-latitude grid, isn't it?
>>>>>>>>>
>>>>>>>>> The OLC grid is arbitrarily fine depending on how many symbols you
>>>>>>>>> use, pretty much like the longitude-and-latitude grid; you would
>>>>>>>>> have,
>>>>>>>>> for example, lines at not only 4° E and 5° E but also at 4.5° E,
>>>>>>>>> 4.05°
>>>>>>>>> E, 4.005° E, 4.0005° E etc. etc.
>>>>>>>>>
>>>>>>>>> Cheers,
>>>>>>>>> Philip
>>>>>>>>> --
>>>>>>>>> Philip Newton <philip...@gmail.com>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Public site: http://www.openlocationcode.com/
>>>>>>>>> Github project: https://github.com/google/open-location-code
>>>>>>>>> Demo site: http://plus.codes/
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>>>>>>>>> .
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>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>> --
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>>>>>>> Github project: https://github.com/google/open-location-code
>>>>>>> Demo site: http://plus.codes/
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>>>>>>
>>>>>> --
>>>>> Public site: http://www.openlocationcode.com/
>>>>> Github project: https://github.com/google/open-location-code
>>>>> Demo site: http://plus.codes/
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>>>>
>>>> --
>>> Public site: http://www.openlocationcode.com/
>>> Github project: https://github.com/google/open-location-code
>>> Demo site: http://plus.codes/
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>>
>
>
> --
> ----------------------------------------------------
> Blake Girardot
> OSM Wiki - https://wiki.openstreetmap.org/wiki/User:Bgirardot
> HOTOSM Member - https://hotosm.org/users/blake_girardot
> skype: jblakegirardot
>
> --
> Public site: http://www.openlocationcode.com/
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