[R-sig-Geo] Background shapefile does not appear

[Suga, Taeko]

I am sorry that I am only using ArcGIS and do not know R well.
Professor recommended us to join the mailing list when I took a GIS class
last year in which we learned a little about R.

I find the differences in the "Extent" between my point shapefile and the
NYC school district file:

My point shapefile has: Top (40.902338??), Bottom (40.507909??), Left
(-74.243994??), and Right (-73.708851??)

NYC shapefile has: Top (272844.293801 ft), Bottom (120121.881268 ft), Left
(913175.108826 ft), and Right (1067382.508423 ft).

I guess my point file has longitude and latitude in the "Extent" and may
need some conversion.

Sorry that I do not use R.

Anyway, thank you very much for your time and help.

Best,
Taeko

On Thu, Apr 9, 2015 at 8:00 PM, MacQueen, Don <macqueen1 at llnl.gov> wrote:

> This is a nice description of your steps, but I can't tell how it
> translates to R (this is R-sig-Geo). For example, what does
>     imported and displayed the data using "X Y Coordinate"
> mean within R? Similarly,
>   exported "All Features"
> sounds like some sort of a menu command, not an R command.
>
> What are the R commands that you used for these steps? Or at least the
> plot commands.
>
> There is advice available for how to ask questions about using R that it
> would be good to take a look at:
>     http://www.R-project.org/posting-guide.html
> It is also helpful if you can provide commented, minimal, self-contained,
> reproducible code.
>
>
>
> --
> Don MacQueen
>
> Lawrence Livermore National Laboratory
> 7000 East Ave., L-627
> Livermore, CA 94550
> 925-423-1062
>
>
>
>
> From:  <Suga>, Taeko <ts2789 at tc.columbia.edu>
> Date:  Thursday, April 9, 2015 at 4:36 PM
> To:  dh m <macqueen1 at llnl.gov>
> Cc:  "R-sig-Geo at r-project.org" <R-sig-Geo at r-project.org>
> Subject:  Re: [R-sig-Geo] Background shapefile does not appear
>
>
> Dear Mr. MacQueen,
>
> Thank you very much for your response.
> 1) I downloaded data (public school name, logitude, and latitude) from the
> NCES Common Core Data.
> 2) I imported & displayed the data using "X Y Coordinate."
> 3) Coordinate System of Input Coordinates by "Import"nysd,shp" created by
> the NYC Department of City Planning.
>
> Projection: Lambert_Conformal_Conic
> False_Easting: 984250.000000
> False_Northing: 0.000000
> Central_Meridian: -74.000000
> Standard_Parallel_1: 40.666667
> Standard_Parallel_2: 41.033333
> Latitude_Of_Origin: 40.166667
> Linear Unit: Foot_US (0.304801)
>
> Geographic Coordinate System: GCS_North_American_1983
> Angular Unit: Degree (0.017453292519943295)
> Prime Meridian: Greenwich (0.000000000000000000)
> Datum: D_North_American_1983
>   Spheroid: GRS_1980
>     Semimajor Axis: 6378137.000000000000000000
>     Semiminor Axis: 6356752.314140356100000000
>     Inverse Flattening: 298.257222101000020000
>
>
> 4) I exported "All features"
> 5) I added the exported data as a layer.
> 6) I added the nysd (new york school district)
>
> But the shapefile (school district) does not appear.
>
> My point file is:
>
> Data Type: Shapefile Feature Class
> Shapefile: C:\Users\Taeko\Desktop\Export_Output_9.shp
> Geometry Type: Point
>
> Projected Coordinate
> System:NAD_1983_StatePlane_New_York_Long_Island_FIPS_3104_Feet
> Projection: Lambert_Conformal_Conic
> False_Easting: 984250.00000000
> False_Northing:
> 0.00000000
> Central_Meridian:
> -74.00000000
> Standard_Parallel_1:
> 40.66666667
> Standard_Parallel_2:
> 41.03333333
> Latitude_Of_Origin:
> 40.16666667
> Linear Unit: Foot_US
>
> Geographic Coordinate System:GCS_North_American_1983
> Datum: D_North_American_1983
> Prime Meridian: Greenwich
> Angular Unit: Degree
>
>
>
> Thank you very much for your support.
>
> Best,
> Taeko
>
>
>
>
> On Thu, Apr 9, 2015 at 9:44 AM, MacQueen, Don
> <macqueen1 at llnl.gov> wrote:
>
> My first guess is that your step "matched the geo-coding" did not succeed.
> But with no details it's hard to say.
>
> Is the NYC school district shapefile also in lat/long?
> If you apply the proj4string() function to both of your objects in R, do
> you get the same result?
> If you apply the bbox() function (bounding box) to both of them, do the
> bounding boxes at least overlap?
>
> Of course they are not shapefiles anymore after they have been loaded into
> R. Is the school point location data a SpatialPointsDataFrame, and the NYC
> school district a SpatialPolygonsDataFrame object?
>
> -Don
>
> --
> Don MacQueen
>
> Lawrence Livermore National Laboratory
> 7000 East Ave., L-627
> Livermore, CA 94550
> 925-423-1062 <tel:925-423-1062>
>
>
>
>
>
> On 4/8/15, 12:03 PM, "Suga, Taeko" <ts2789 at tc.columbia.edu> wrote:
>
> >Dear All,
> >
> >I have created a school-point-location shapefile, using the school point
> >location data (longitude & latitude) from the National Center for
> >Education
> >Statistics, Common Core Data system.
> >
> >I matched the geo-coding of the shapefile with the NYC school district
> >shapefile created by the NYC Department of City Planning.
> >
> >Then, I try to over lay the point location to the NYC school district
> >shapefile, but failed. The district shape file did not appear.
> >
> >Hope someone could help me.
> >Thank you!
> >
> >Taeko Suga
> >Ed.M. student
> >Teachers College
> >
>
>
> >       [[alternative HTML version deleted]]
> >
> >_______________________________________________
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> >R-sig-Geo at r-project.org
> >https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>
>
>
>
>
>
>

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