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
>>
>>
>
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