Thanks for the tips Thorsten. It was setting up the EPSG database that
was taking so long, not creating the transforms. Since I always use the
same two CRS, I just coded them both in WKT, and now the app starts in 7
seconds instead of nearly a minute.
Matt
Thorsten Reitz wrote:
Hi Matt,
if you are using the HSQL EPSG database, this has most likely to do with
the set-up of the EPSG database, which happens once per application
start. Using a different database, like a preinstalled MySQL, where the
EPSG content it provided, will usually reduce this startup time.
Alternatively, if you know in advance which transforms you are going to
need, you can store transforms directly (serializing them) and later
recreate the MathTransform objects from that. AFAIR, you can also create
a transform directly from WKTs, so soring these for the CRS you need
might be an option.
Best regards,
Thorsten
Matt Foster schrieb:
Hello,
I have an application using GT 2.5.1 that has to create Geographic <->
Projected transforms at startup. I'm creating these with
CRS.findMathTransform to get the first (Projected -> Geographic), and
then using the inverse() to get the Geographic -> Projected. I was
trying to figure out yesterday why the app was taking so long to start
(nearly a minute), and found that it is taking 45 seconds to create the
transforms.
Is there anyway this can be done faster?
Matt
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Geotools-gt2-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
--
Do not go where the path may lead; go instead where there is no path and leave
a trail.
-- Ralph Waldo Emerson
begin:vcard
fn:Matt Foster - N0EYE
n:Foster;Matt
org:;NWS Forecast Office - Norman OK
email;internet:[email protected]
title:Information Technology Officer
tel;work:(405) 325-3406
x-mozilla-html:TRUE
version:2.1
end:vcard
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Geotools-gt2-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
