Graphics in general

[uckelman]

Thus spake “Brent Easton”:

As I kept zooming and scrolling about, eventually, I maxxed out the Java Heap
(1300Mb) and performance dropped off considerably. Part of the reason it wor
ks well on 3.0.17 is that there are only 3 zoom levels available, while in th
e 3.1 version, there are 6 available. This seems to be a bug in the 3.1 imple
mntation of the new Zoomer, it should copy the existing zoom levels, not make
up new ones. I tried setting 3 specific zoom levels in the 3.1 version and t
his helped keep memory under control.

Brent, can you show me an example of this happening? The Zoomer is supposed
to retain the old zoom levels from pre-3.1 modules and add exatly one more:
150%.

–
J.

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[uckelman]

Thus spake Joel Uckelman:

Thus spake “Brent Easton”:

As I kept zooming and scrolling about, eventually, I maxxed out the Java He

ap

(1300Mb) and performance dropped off considerably. Part of the reason it w

or

ks well on 3.0.17 is that there are only 3 zoom levels available, while in

th

e 3.1 version, there are 6 available. This seems to be a bug in the 3.1 imp

le

mntation of the new Zoomer, it should copy the existing zoom levels, not ma

ke

up new ones. I tried setting 3 specific zoom levels in the 3.1 version and

t

his helped keep memory under control.

Brent, can you show me an example of this happening? The Zoomer is supposed
to retain the old zoom levels from pre-3.1 modules and add exatly one more:
150%.

I think I see what you were talking about now. The new Zoomer stores its
zoom level information in a different attribute than the old Zoomer, so
as not to step on its toes and maintain interoperability. The TBK module
actually has 6 zoom levels—those weren’t invented by the new Zoomer,
which has 4 levels by default (the original three based on powers of
1.6, and 1.6 itself). What’s happening is that the new Zoomer isn’t
updating the old attributes when new zoom levels are added, so 3.0 and
before are seeing a Zoomer with no zoom levels defined, and hence you
get the default 3.

Does this seem ok, or does it need to be fixed?

–
J.

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