Sample 25574: Emphasizing map areas using PROC GPROJECT and PROC GMAP
This example uses the gnomonic projection method with PROC GPROJECT to create a map in which the east coast of the United States appears disproportionately large compared to the west coast.
These sample files and code examples are provided by SAS Institute
Inc. "as is" without warranty of any kind, either express or implied, including
but not limited to the implied warranties of merchantability and fitness for a
particular purpose. Recipients acknowledge and agree that SAS Institute shall
not be liable for any damages whatsoever arising out of their use of this material.
In addition, SAS Institute will provide no support for the materials contained herein.
This example uses the gnomonic projection method with PROC GPROJECT to create a map in which the east coast of the United States appears disproportionately large compared to the west coast.
The graphics output in the Results tab was produced using SAS® 9.2. Submitting
the sample code with releases of SAS prior to SAS 9.2 might produce different results.
/* Define the libref of MAPS if necessary */
*libname maps 'SAS-MAPS-library';
/* Set the graphics environment */
goptions reset=all border cback=white htitle=12pt;
/* Create reduced continental U.S. map data set */
/* and remove Alaska, Hawaii, and Puerto Rico */
data us48;
set maps.states;
if state ne 2 and state ne 15 and state ne 72;
if density<3;
run;
/* Project map onto plane centered in the Pacific */
proc gproject data=us48
out=skew
project=gnomon
polelong=160
polelat=45;
id state;
run;
/* Add a title to the map */
title1 'United States Map after PROC GPROJECT';
/* Show projected map */
proc gmap map=skew data=skew all;
id state;
choro state / nolegend;
run;
quit;
These sample files and code examples are provided by SAS Institute
Inc. "as is" without warranty of any kind, either express or implied, including
but not limited to the implied warranties of merchantability and fitness for a
particular purpose. Recipients acknowledge and agree that SAS Institute shall
not be liable for any damages whatsoever arising out of their use of this material.
In addition, SAS Institute will provide no support for the materials contained herein.
This example uses the gnomonic projection method with PROC GPROJECT to create a map in which the east coast of the United States appears disproportionately large compared to the west coast.
| Type: | Sample |
| Topic: | Query and Reporting ==> Creating Reports ==> Graphical ==> Graph Types ==> Maps
SAS Reference ==> Procedures ==> GMAP
SAS Reference ==> Procedures ==> GPROJECT
|
| Date Modified: | 2005-08-27 03:03:25 |
| Date Created: | 2005-05-23 14:16:29 |
Operating System and Release Information
| SAS System | SAS/GRAPH | All | 8 TS M0 | n/a |
