Update:
What I've found from the EPSG that there is only 4 UTM ft listings in the table
epsg_alias. Unless I'm incorrect for 14N - 32664, 15N - 32665, 16N - 32666,
17N 32667
Also on my code from Question #1 below I made the following update to fix the
compilation error:
CRSAuthorityFactory factory =
ReferencingFactoryFinder.getCRSAuthorityFactory("EPSG", null);
//crs = factory.createCoordinateReferenceSystem("EPSG:" + (32600 + utm_zone));
crs = factory.createCoordinateReferenceSystem("EPSG:" + 32664);
The following code is really handy to see what your units are:
Unit<?> unit =
map.getCoordinateReferenceSystem().getCoordinateSystem().getAxis(0).getUnit();
String unitName = unit.toString();
System.out.println("unitName: "+unitName);
-----Original Message-----
From: "Oliver Gottwald" <[email protected]>
Sent: Monday, December 14, 2009 6:30pm
To: "geouser" <[email protected]>
Subject: Re: [Geotools-gt2-users] Setting CoordinateReferenceSystem to UTM ft
Question #1 is still open as a question below. I figured out Question #2.
Below are #1-#10 steps for setting up the EPSG mysql database and the query for
pulling the UML rows:
#1: install mysql
#2: set mysql bin path in control panel/System/environment variables
#3: login to mysql:
mysql -uyourlogin -pyourpassword
#4: create database
mysql>create database epsg;
#5: exit mysql
#6: goto directory where downloaded epsg - link on
http://www.epsg.org/CurrentDB.html - for mysql - run table creation command
C:\projects\downloads\epsg-v7_4sql-mySQL>mysql -uyourlogin -pyourpassword epsg
< EPSG_v7_4.mdb_Tables_MySQL.sql
#7: run data import command - may take a while
C:\projects\downloads\epsg-v7_4sql-mySQL>mysql -uyourlogin -pyourpassword epsg
< EPSG_v7_4.mdb_Data_MySQL.sql
#8 login to mysql:
mysql -uyourlogin -pyourpassword
#9 select database:
mysql> use epsg;
Database changed
#10 to get utm i did a like after a more narrow DOS: find /N "32610"
EPSG_v7_4.mdb_Data_MySQL.sql
mysql> select *
INTO OUTFILE '/result.csv'
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY '\n'
from epsg_coordinatereferencesystem where coord_ref_sys_name Like "%WGS 84 /
UTM zone%";
What I get back is 120 rows:
1N-60N
1S-60S
-----Original Message-----
From: "Oliver Gottwald" <[email protected]>
Sent: Monday, December 14, 2009 5:10pm
To: "geouser" <[email protected]>
Subject: [Geotools-gt2-users] Setting CoordinateReferenceSystem to UTM ft
Hi,
I noticed a listing on the forum CRS factory question:
http://n2.nabble.com/CRS-factory-question-td1937609.html#a1937611
I want to set my CoordinateReferenceSystem to UTM ft instead of WGS84
It has to be flexible for UTM ft though being from U-R and 10-19 of UTM Zones
Question #1:
Is the below the way that I have to make it more flexible???
When I plug the code in for the FactoryFinder I'm getting
getCRSFactoryFinder("ESPG",null)
is not found for type FactorFinder (compilation error).
I'm willing to post a class with constant variables for the UTM setting if the
below is the way to go.
Question #2:
If the below is the way to go does anyone know the EPSG tables to look at???
Which I downloaded from
http://www.epsg.org/CurrentDB.html
Oliver
>Is there a way with the current set of APIs (looks like some are in flux
> with opengis) to instantiate a CoordinateReferenceSystem for a
> particular UTM zone.
There is no explict API for doing this task. However, if you are using the EPSG
database, you can
use the following trick. A look in the EPSG database show that there is a logic
between EPSG code
and UTM zone. For example
32601 WGS 84 / UTM zone 1N
32602 WGS 84 / UTM zone 2N
32603 WGS 84 / UTM zone 3N
32604 WGS 84 / UTM zone 4N
32605 WGS 84 / UTM zone 5N
32606 WGS 84 / UTM zone 6N
...
32701 WGS 84 / UTM zone 1S
32702 WGS 84 / UTM zone 2S
32703 WGS 84 / UTM zone 3S
32704 WGS 84 / UTM zone 4S
32705 WGS 84 / UTM zone 5S
32706 WGS 84 / UTM zone 6S
...
There is also similar code ranges for UTM using WGS72, NAD27, ED50, etc. datum.
So you can use for example:
int utm_zone = 10;
CRSAuthorityFactory f = FactoryFinder.getCRSAuthorityFactory("EPSG", null);
crs = f.createCoordinateReferenceSystem("EPSG:" + (32600 + utm_zone));
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