Simone Giannecchini a écrit :
> Well, I see that you never fought with the reversed-axis problem but
> believe me when everybody understands lon,lat while our crs where
> mostly lat,lon these methods come pretty hand to reverse things .-).
I never fought the reversed-axis problem in the sense that J2D-renderer was
coded correctly right from the begining in this regard - I had this issue in
mind back in 2001 (when I wrote the first draft of a referencing module), as
well as generic rotations. J2D-renderer was weak on other aspects, but in the
particular case of CRS and transformations, I don't think that
StreamingRenderer
has reached the level of support that J2D-renderer had.
As a first approach (short term), it would be suffisient to replace:
boolean lonFirst = GeneralDirectPosition.swapXY(coordinate_system);
by
boolean lonFirst = XAffineTransform.getSwapXY(affine_transform) != -1;
when 'lonFirst' is used for choosing the AffineTransform.getFoo() methods to
invoke. But in longer term, every piece of code like this one:
boolean lonFirst = a value related directly or indirectly to AffineTransform
if (lonFirst) {
// Do some stuff with AffineTransform
} else {
// Do some other stuff with AffineTransform
}
is suspect. Its my turn to said "believe me" :). In many case, the code above
can be replaced by matrix operations in a more generic way. But we can revisit
that later.
Best regards,
Martin
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