ok so i partially solved the problem in removing the jai_core.jar installed
by default on macosx (in the jvm) and using the geotools one instead. Don't
know if this is a macosx problem or a geotools problem.
However i think the USE_HACK flag should be accessible by the end user, in
case he has a better algorithm to guess which version of jai is buggy or not
gersh
On Wed, Jul 21, 2010 at 14:05, gershwinou <[email protected]> wrote:
> forgot the geootols list
>
>
> ---------- Forwarded message ----------
> From: gershwinou <[email protected]>
> Date: Wed, Jul 21, 2010 at 13:21
> Subject: Re: [udig-devel] net.refractions.udig.libs / geotools 2.6 issue
> To: User-friendly Desktop Internet GIS <[email protected]>
>
>
> ok more on it, the last trunk version has something new:
> 2.6.0 is using a hack because the JAI warp2d is buggy
> 2.6-SNAPSHOT is testing JAI build version, and if <1.1.3 it is using the
> hack
>
> when i check my JAI build, it tells me that the build version is
> unavailable (i am on MACOSX) so WarpTransform2D is NOT using the hack, which
> is wrong.
>
> First of all the static field USE_HACK should be accessible, or at least
> not final so i can change it using reflection...
>
> Anyway to have it changed...
>
> below the hack code in the last version:
>
>
> private final static boolean USE_HACK;
> static{
> final String buildVersion=JAI.getBuildVersion();
> final SimpleDateFormat df= new SimpleDateFormat("yyyy-MM-dd'
> 'hh:mm:ss.SSSZ");
> final TimeZone tz= TimeZone.getTimeZone("UTC");
> df.setTimeZone(tz);
> boolean hack=false;
> try {
> final Date date_ =
> buildVersion!=null?df.parse(buildVersion):new java.util.Date();
> //reduce granularity to minute
> final GregorianCalendar tempCal = new
> GregorianCalendar(tz);
> tempCal.setTime(date_);
> tempCal.set(Calendar.HOUR_OF_DAY, 0);
> tempCal.set(Calendar.MINUTE, 0);
> tempCal.set(Calendar.SECOND, 0);
> tempCal.set(Calendar.MILLISECOND, 0);
> final Date date=tempCal.getTime();
>
> // 113 version
> final GregorianCalendar version113= new
> GregorianCalendar(tz);
> version113.set(2006, 8, 12,0,0,0);
> version113.set(Calendar.MILLISECOND, 0);
> // we need the hacke only if we are using 1.1.3
> hack=!date.after(version113.getTime());
> } catch (ParseException e) {
> hack=false;
> }
> USE_HACK=hack;
> }
>
> gersh
>
> On Wed, Jul 21, 2010 at 13:00, Jody Garnett <[email protected]>wrote:
>
>> Not me personally; I thought Andrea updated the EPSG database however?
>> Jody
>>
>> On 21/07/2010, at 8:49 PM, gershwinou wrote:
>>
>> ok got the issue, i guess this is critical.
>> i was using geotools 2.6.0 and it worked ok in my class. Downloaded 2.6.4
>> and got the same error as the udig bundle (using 2.6-SNAPSHOT)
>>
>> any chances you have made some changes of the WarpTransform2D class in the
>> between?
>>
>> gersh
>>
>> On Tue, Jul 20, 2010 at 16:51, gershwinou <[email protected]> wrote:
>>
>>> well i added this line at startup of my working version but no change. I
>>> also commented out the net.refractions.udig.libs activator line and there is
>>> no change...
>>>
>>> my geotools 2.6 is using hsql database, populating with epsg version 7.1
>>>
>>> i cannot say for the udig bundles, i did not see the logs saying the
>>> classical message about populating the database.
>>>
>>> i am digging in.
>>>
>>> Thanks a lot for your hints
>>>
>>> - gersh
>>>
>>> On Tue, Jul 20, 2010 at 15:49, Jody Garnett <[email protected]>wrote:
>>>
>>>> uDig flips the forceXY preference setting[1]:
>>>>
>>>> System.setProperty("org.geotools.referencing.forceXY", "true");
>>>>
>>>>
>>>> Is there a chance that is messing you up? You could try doing this
>>>> yourself and see if your 2.6 code produce the same answer?
>>>>
>>>> Other then that udig is using epsg-h2 (rather then the more common and
>>>> stable epsg-hsql). What are you using when you test geotools 2.6?
>>>>
>>>> Jody
>>>> [1] http://docs.codehaus.org/display/GEOTDOC/The+axis+order+issue
>>>>
>>>> On 20/07/2010, at 11:15 PM, gershwinou wrote:
>>>>
>>>> I am cross-posting to geotools and udig, because i think both are
>>>> concerned.
>>>>
>>>> So in a nutschell, i try to use geotools Warp2DTransform to perform
>>>> warping from pixels coordinate to geographic coordinate. I have been using
>>>> geotools for a while, but now i need to move geotools library to osgi
>>>> bundle
>>>> (here comes udig).
>>>>
>>>> So i used net.refractions.udig.libs that have already done the work. I
>>>> am checking out the trunk, ie using geotools-2.6-SNAPSHOT version.
>>>>
>>>> Using directly the geotools 2.6 with my classes, Warp2DTransform Works
>>>> ok. I input a set of GCPs and get a correct transformation, of degree 3.
>>>> Using the same class in the udig bundles, the results is totally wrong,
>>>> ie the coefficients are very low. See the difference below. The funny thing
>>>> is that is that when i divide the outputs with prescales factors, i got
>>>> results of the right order (ie coordinates around (43,12) instead
>>>> of(0.006,0,001), but there are still wrong in the sense that coordinates
>>>> are
>>>> very close to each others (order of 0.0001 degrees instead of degrees).
>>>>
>>>> any hints?
>>>>
>>>> geotools 2.6-SNAPSHOT/udig eclipse bundle (Wrong coeffs)
>>>>
>>>> PARAM_MT["WarpPolynomial",
>>>> PARAMETER["degree", 3],
>>>> PARAMETER["xCoeffs", {0.006612524390220642, 0.00000001603510035864,
>>>> -0.00000000411600664663, -0.00000000000000079568, -0.00000000000000710382,
>>>> -0.00000000000000444428, -0.00000000000000000005, -0.00000000000000000003,
>>>> 0.00000000000000000026, 0.00000000000000000104}],
>>>> PARAMETER["yCoeffs", {-0.0015807533636689186, 0.00000000305463854211,
>>>> 0.00000001448123754244, 0.00000000000000241329, -0.00000000000000179796,
>>>> 0.00000000000000177312, 0.00000000000000000001, -0.00000000000000000001,
>>>> -0.00000000000000000005, -0.00000000000000000025}],
>>>> PARAMETER["preScaleX", 0.0001521606754977256],
>>>> PARAMETER["preScaleY", 0.00012525050260592252],
>>>> PARAMETER["postScaleX", 0.9410438537597656],
>>>> PARAMETER["postScaleY", 1.0499610900878906]]
>>>>
>>>>
>>>> geotools 2.6 (right Coeffs)
>>>>
>>>> PARAM_MT["WarpPolynomial",
>>>> PARAMETER["degree", 3],
>>>> PARAMETER["xCoeffs", {46.180110931396484, 0.7821832299232483,
>>>> -0.21910369396209717, -0.0004944244283251464, -0.0024764996487647295,
>>>> 0.00076442607678473, -0.00001066674121830147, 0.0000213175590033643,
>>>> 0.0001045847893692553, 0.00009047376806847751}],
>>>> PARAMETER["yCoeffs", {-12.020193099975586, 0.16218608617782593,
>>>> 0.8374767303466797, 0.0009584086365066469, -0.0007706039468757808,
>>>> 0.0001044207310769707, -0.0000068093295340077, -0.00006432097870856524,
>>>> 0.00001632759085623547, -0.00000976871160673909}],
>>>> PARAMETER["preScaleX", 0.0001521606754977256],
>>>> PARAMETER["preScaleY", 0.00012525050260592252],
>>>> PARAMETER["postScaleX", 0.9410438537597656],
>>>> PARAMETER["postScaleY", 1.0499610900878906]]
>>>>
>>>>
>>>> _______________________________________________
>>>> User-friendly Desktop Internet GIS (uDig)
>>>> http://udig.refractions.net
>>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> User-friendly Desktop Internet GIS (uDig)
>>>> http://udig.refractions.net
>>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>>
>>>>
>>>
>> _______________________________________________
>> User-friendly Desktop Internet GIS (uDig)
>> http://udig.refractions.net
>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>
>>
>>
>> _______________________________________________
>> User-friendly Desktop Internet GIS (uDig)
>> http://udig.refractions.net
>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>
>>
>
>
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