[Talk-us] finding city boundary info?

[Ray Kiddy]

Mike -

It appears that you are telling me how to select the objects which are 
part of the relation.

The east and north edge of the block shown below in red is not part of 
the relation, but should be. I know that that red block is object # 
383948. But does this show me where it is in openstreetmap's data? I am 
not seeing any name associated with that object in the TIGEER data, nor 
am I seeing any tiger tags associated with any of the lines near that 
area in the openstreetmap data. So, how can I connect the two?

much thanx - ray

On 11/8/20 4:07 PM, Mike Thompson wrote:
> JOSM
> <Download Button>
> "Areas around Places" Tab
> "Blythe, CA"
> Select "boundary"
> "Download"
> Select any part of the boundary on the map (in this case it is a 
> relation with only one member)
> In the "tags" dialog on the right of the JOSM screen it will list the 
> way as a member of the relation, click the relation and it will be 
> selected.
>
>
>
> On Sun, Nov 8, 2020 at 4:47 PM Ray Kiddy <ray at ganymede.org 
> <mailto:ray at ganymede.org>> wrote:
>
>     Hello -
>
>     Can anyone explain the best way for me to do something here? I am
>     trying to identify the city boundaries of a city in California.
>     Right now, there is a relation for the city of Blythe which covers
>     a very small area to the west of the city. And then there is a
>     node in the center of the city. I how (mostly) how to use both
>     JOSM (not as an expert) and iD. But there is obviously something
>     here that I do not understand.
>
>     Blythe is on the border of California and Arizona on the
>     interstate between LA and Phoenix.
>
>     I have downloaded the 2019 TIGER data for California
>     (https://www2.census.gov/geo/tiger/TGRGDB19/tlgdb_2019_a_06_ca.gdb.zip
>     <https://www2.census.gov/geo/tiger/TGRGDB19/tlgdb_2019_a_06_ca.gdb.zip>).
>
>
>     I can load the data in QGIS, select "Incorporated Places" and I
>     see this:
>
>     If not in email, see:
>     https://opencalaccess.org/misc/Screen%20Shot%202020-11-08%20at%203.26.32%20PM.png
>     <https://opencalaccess.org/misc/Screen%20Shot%202020-11-08%20at%203.26.32%20PM.png>
>
>     There it is. Blythe, CA.
>
>     Then I can zoom in and see a little bit of the edge on the
>     southern city of the city.
>
>
>     If not in email,
>     see:https://opencalaccess.org/misc/Screen%20Shot%202020-11-08%20at%203.30.13%20PM.png
>     <https://opencalaccess.org/misc/Screen%20Shot%202020-11-08%20at%203.30.13%20PM.png>
>
>     So, we are looking at object # 383948. The north and east edges of
>     this block makes up part of the city boundary.
>
>     Now, how do I find out what the features on the north and east
>     side of the block are called? How do I find this in the map using
>     either JOSM or iD? I was hoping that I could search for the tiger
>     object with this id but I cannot seem to. Is there are way to find
>     it that I do not see?
>
>     When the TIGER data was in the form of text files (about 10 years
>     ago), a line in the TIGER data set would show its name. But it
>     does not contain this information in the GDB files? Is there
>     somewhere else one can get this?
>
>     What am I missing here?
>
>     If I can find the feature in JOSM, then I can add it to the
>     relation. Shouldn't TIGER lines be somewhere in the map here,
>     findable in JOSM? How can I search for them?
>
>     Any suggestions would be appreciated.
>
>     thanx - ray
>
>
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