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

[MacQueen, Don]

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
>


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