[Talk-us] finding city boundary info?

[Ray Kiddy]

Actually, someone else pointed me to the County map which shows those 
boundaries.

I guess I was expecting that TIGER lines for these boundaries would have 
already been imported at some time. But, no. I will have to find out why 
TIGER data imports were not done for this area.

So I can see in the county map where the boundaries should be and it 
does show the names of most of the important features.

So, all good here.

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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