Simone Giannecchini a écrit :
> - when you are resampling and you have a targert GR or a targetGridToCRS
> the current behavior is correct (this is more a resample than a real
> crop) since it strives to meet what the user would expect.
> - when you are croppping simply providing an envelope, we
Going by memory as far the Resample operation is concerned, I think I
understand to what you are referring to. Many JAI operations like Affine,
Scale, SubsampleAverage, FilteredSubsample, etc.., do NOT respect the
ImageLayout minX, minY, width and height hints. Citing the Affine
operations:
"It ma
Simone Giannecchini a écrit :
> a clarification, by Affine you mean the simple Affine or the Warp Affine
> (I would assume the second).
I'm not sure it was about the exact type of JAI operation used. I don't think
that JAI itself was failing. If I remember right, it was about the destination
im
Ciao Martin,
a clarification, by Affine you mean the simple Affine or the Warp Affine (I
would assume the second).
Simone.
On Tue, Jul 29, 2008 at 4:38 PM, Martin Desruisseaux <
[EMAIL PROTECTED]> wrote:
> Simone Giannecchini a écrit :
>
>> What do you mean by the fact that Affine operation wa
Simone Giannecchini a écrit :
> What do you mean by the fact that Affine operation was failing?
> I think this might bring an important use case in the picture, but as
> of now I can't remember any discussion on this issue ( I might be
> remembering wrong of course). Anyway, before discussing abou
Ciao Martin,
What do you mean by the fact that Affine operation was failing?
I think this might bring an important use case in the picture, but as
of now I can't remember any discussion on this issue ( I might be
remembering wrong of course). Anyway, before discussing about the
rounding issue itse
Simone Giannecchini a écrit :
> Well, with the given semantic I might get an error back since it might
> really be that w and/or h in the raster space are 0 after the
> rounding you describe in the javadoc.
> Same thing would not apply if we followed JAI's or
> (rectangle2d.getBounds() if you like
Ciao Martin,
I think we can put things this way, if I try to crop a coverage
providing a very small envelope which fits inside the coverage's
envelope I think it would be advisable to return the smallest
coverage's area that contains the requested area. Of course, we should
adjust the envelope acco
Hello Simone
Simone Giannecchini a écrit :
> This little snippet is trying to crop a very small (1/3 of the pixel
> width and height) part of a coverage around the lower left corner. If
> you try to run this code you'll getn an exception from the Resample
> operation.
So if I'm understanding corr
Ciao Martin,
as I promised during this evening IRC I have spared some time to put
together an isolated test case to show the behavior I was talking
about.
The code is here http://pastebin.com/m53e6a6a8 , it is a simple
modification of the testCrop so it is pretty easy to play with in
order to spar
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