[Talk-us-massachusetts] Talk-us-massachusetts Digest, Vol 49, Issue 6

Yury Yatsynovich yury.yatsynovich at gmail.com
Mon Dec 21 19:34:01 UTC 2020 

Greetings!
I've been recently working on a MassGIS hydro layer (major streams), slowly
moving from the West to the East of MA and adding streams one by one (e.g.
https://www.openstreetmap.org/changeset/95976341).
Overall, the layer is useful as a guidance on the streams' directions and
their names, but intersections of streams with roads (bridges/culverts) are
usually not accurately located, so a lot of manual edits are needed.
Best,
Yury

On Mon, Dec 21, 2020 at 1:33 PM <
talk-us-massachusetts-request at openstreetmap.org> wrote:

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> Today's Topics:
>
>    1. Adding McKinstry Brook (Peter Cooper Jr.)
>    2. Re: Adding McKinstry Brook (Greg Troxel)
>    3. Re: Adding McKinstry Brook (Greg Troxel)
>    4. Re: Adding McKinstry Brook (Peter Cooper Jr.)
>    5. Re: Adding McKinstry Brook (Wayne Emerson, Jr.)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 21 Dec 2020 12:26:48 -0500
> From: "Peter Cooper Jr."
>         <pete-openstreetmap-massachusetts-list at cooperjr.name>
> To: talk-us-massachusetts at openstreetmap.org
> Subject: [Talk-us-massachusetts] Adding McKinstry Brook
> Message-ID: <2fde45ae-0695-520f-0be9-ea46dafacda5 at cooperjr.name>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hello everyone! I'm definitely an "armchair mapper" here, just trying to
> make maps in my general area a bit more accurate. (I'm mainly hoping
> that since the big mappers often get data from OSM, that if I fix the
> problems there eventually other maps won't be as likely to have my road
> in the wrong spot and stuff like that.)
>
> But, I thought I'd work on adding McKinstry Brook, which goes through my
> property. I tried tracing it from some combination of the USGS
> Topographic Map and the MassGIS 2019 Orthos (though some places it's
> pretty hard to see exactly where the stream is through the trees).
>
> So first, here's my changeset and I'd like some level of review that I
> didn't screw something up terribly:
> https://www.openstreetmap.org/changeset/96205699
>
> Secondly, after I did this I started looking at info on the McKinstry
> Brook Wildlife Management Area (to see if I might be able to improve
> that some too), I went to this page on the state's site
> <
> https://www.mass.gov/info-details/list-of-wildlife-management-areas-by-district#central-district->
>
> and clicked on the "go to map" for "Mckinstry Brook WMA". This takes me
> to some sort of MassWildlife GIS map
> <
> https://mass-eoeea.maps.arcgis.com/apps/webappviewer/index.html?id=3a7c475cb6d54578ba8c7149d885ad30&find=MCKINSTRY%20BROOK%20WMA>,
>
> which seems to already have McKinstry brook on it. So, I'm wondering if
> the data from that map is public-domain and could be used, and if so if
> there's some way to import the location of the brook (and if so, if it
> might be more accurate than what I tried to do tracing from imagery).
>
> Thanks,
> --
> Peter C.
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 21 Dec 2020 12:41:56 -0500
> From: Greg Troxel <gdt at lexort.com>
> To: "Peter Cooper Jr. via Talk-us-massachusetts"
>         <talk-us-massachusetts at openstreetmap.org>
> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
> Message-ID: <rmiy2hrxdi3.fsf at s1.lexort.com>
> Content-Type: text/plain; charset="utf-8"
>
>
> MassGIS has a lot of data layers available.  They are basically public
> domain, with some odd labeling as CC-BY in some places, but when asked
> it is public domain with attribution requested.  It is polite to list
> MassGIS as source in your changeset comment when using MassGIS data.  We
> are usually briefer than their listed form and just say "MassGIS
> layername" and leave out the "Commonwealth of Massachusetts EOTSS".
>
>   https://www.mass.gov/service-details/massgis-frequently-asked-questions
>
> There is also some USGS hydrography data.  My very very hazy impression
> is that the MassGIS data is probably better.
>
> If you are comfortable munging python code and dealing with shapefiles,
> you can probably get to the point of using these sources.  Probably JOSM
> can read shapefiles, in which case you could do this without coding.  If
> you aren't using JOSM and you want to do this sort of editing, I suggest
> learning it.
>
> If you just want to add one stream that you are cross-checking with
> imagery and personal knoweldge, I'd say go for it and don't worry too
> much.
>
> If you start to think about "import all the streams in MA", that's an
> import, needs plan/discussion/approval and it's at least 10x harder than
> you think.
>
> Have a look at these pages:
>   https://docs.digital.mass.gov/massgis
>   https://www.mass.gov/orgs/massgis-bureau-of-geographic-information
>   https://docs.digital.mass.gov/dataset/massgis-data-layers
>
> https://docs.digital.mass.gov/dataset/massgis-data-massdep-hydrography-125000
>
> I haven't really looked into this layer, but it's on my semi-infinite
> TODO list.
>
> Hope this helps and feel free to ask me more questions.
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> ------------------------------
>
> Message: 3
> Date: Mon, 21 Dec 2020 12:58:32 -0500
> From: Greg Troxel <gdt at lexort.com>
> To: "Peter Cooper Jr. via Talk-us-massachusetts"
>         <talk-us-massachusetts at openstreetmap.org>
> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
> Message-ID: <rmitusfxcqf.fsf at s1.lexort.com>
> Content-Type: text/plain; charset="utf-8"
>
>
> I downloaded the hydro25k layer and looked at it in QGIS.  It indeed
> looks useful.  If you want to send me a private mail with a geo link to
> where you are I can see about pulling that one stream out of it into osm
> format for you, if that seems daunting to you (quite understandable).
>
> But see this and maybe you can do it yourself:
>
>
> https://wiki.openstreetmap.org/wiki/Software_comparison/Import_a_shapefile
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> ------------------------------
>
> Message: 4
> Date: Mon, 21 Dec 2020 13:09:58 -0500
> From: "Peter Cooper Jr."
>         <pete-openstreetmap-massachusetts-list at cooperjr.name>
> To: Talk-us-massachusetts <talk-us-massachusetts at openstreetmap.org>
> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
> Message-ID: <340dba2b-1e06-089b-28a8-c709a30b4f42 at cooperjr.name>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 12/21/2020 12:41 PM, Greg Troxel wrote:
> > If you are comfortable munging python code and dealing with shapefiles,
> > you can probably get to the point of using these sources.  Probably JOSM
> > can read shapefiles, in which case you could do this without coding.  If
> > you aren't using JOSM and you want to do this sort of editing, I suggest
> > learning it.
> Hmm; while software engineering is my day job I've somehow managed to
> not pick up Python yet. I guess I was hoping that there was some easy
> way to import more MassGIS layers into the iD editor or into OSM
> directly. Having the L3 Parcel data and the 2019 Orthos right there in
> iD is pretty nice and easy. I was hoping somebody had just already
> developed a way to just copy a stream that's in MassGIS data over into
> OSM. If there's nothing already built, while it sounds like a fun
> project I'm unlikely to be able to dedicate the time to do it myself.
>
> > If you just want to add one stream that you are cross-checking with
> > imagery and personal knoweldge, I'd say go for it and don't worry too
> > much.
> Yeah, that's basically all I'm doing. I mean I know many of the road
> crossings for this stream, but it's not like I've walked along the
> entire length of the stream or anything like that. I guess I am just
> worrying too much.
>
> > If you start to think about "import all the streams in MA", that's an
> > import, needs plan/discussion/approval and it's at least 10x harder than
> > you think.
> Oh no, you're thinking much more ambitious here than I am. :)
>
> > Hope this helps and feel free to ask me more questions.
> Yes, thank you, this was helpful.
>
> On 12/21/2020 12:58 PM, Greg Troxel wrote:
> > I downloaded the hydro25k layer and looked at it in QGIS.  It indeed
> > looks useful.  If you want to send me a private mail with a geo link to
> > where you are I can see about pulling that one stream out of it into osm
> > format for you, if that seems daunting to you (quite understandable).
> Are you looking for a link other than the changeset I initially made?
> Sorry, I'm not sure what other "geo link" to send.
> https://www.openstreetmap.org/changeset/96205699
>
> > But see this and maybe you can do it yourself:
> >
> >
> https://wiki.openstreetmap.org/wiki/Software_comparison/Import_a_shapefile
> I'll maybe dig into this when I have more time.
>
> Thanks!
> --
> Peter C.
>
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 21 Dec 2020 13:31:40 -0500
> From: "Wayne Emerson, Jr." <ibemerson at verizon.net>
> To: talk-us-massachusetts at openstreetmap.org
> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
> Message-ID: <c6183f1e-fc9e-2cb2-a370-d572e21067b8 at verizon.net>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> The hydro25karc file is my favorite layer for rivers because it has a
> name field. The main problem with it however is that the lines seem to
> be drawn, (in a recent area I checked), north to south rather than in
> the direction of actual flow. So it was a lot of extra work to check the
> topo map to find the proper flow direction.
>
> -Wayne
>
> On 12/21/2020 12:58 PM, Greg Troxel wrote:
> > I downloaded the hydro25k layer and looked at it in QGIS.  It indeed
> > looks useful.  If you want to send me a private mail with a geo link to
> > where you are I can see about pulling that one stream out of it into osm
> > format for you, if that seems daunting to you (quite understandable).
> >
> > But see this and maybe you can do it yourself:
> >
> >
> https://wiki.openstreetmap.org/wiki/Software_comparison/Import_a_shapefile
> >
> > _______________________________________________
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> > Talk-us-massachusetts at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/talk-us-massachusetts
>
>
>
>
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> End of Talk-us-massachusetts Digest, Vol 49, Issue 6
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-- 
Yury Yatsynovich
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