Hi Nico,
snapshot can set a resolution in stone, but it doesn't - in and of
itself - help with zooming that fixed resolution representation without
antialiasing. To get an aliased zoom of an image see the code that
Felipe already posted in this thread.
To be clear, to get an aliased, zoomed pixel preview you would:
1. snapshot a node tree at the scale you want to preview
2. then use Felipe's example code to get a nearest-neighbor aliased zoom
of that snapshot
When we offer filtering control on ImageView then the second part of
that operation would no longer be necessary.
...jim
On 8/27/14 11:51 PM, Nico Krebs | www.mensch-und-maschine.de wrote:
Thank you both!
i added a vote to the feature request. Could you provide a short sample,
how snapshot(..) can help me zooming without antialiasing?
Nico
Jim Graham <mailto:james.gra...@oracle.com>
28. August 2014 01:33
We have no plans at all for implementing "pixel preview" as a setting
on Shapes. You can do that with snapshot if you want.
The Shape.setSmooth() setting (currently stubbed out) is meant to
control antialiasing, not rendering resolution.
There should be similar bugs for Shape.setSmooth() and the lack of
interpolation control on GraphicsContext.drawImage() methods as well,
but I don't recall any Jira issues that deal with "pixel preview"
capabilities (again, which can be achieved via snapshot)...
...jim
Edu García <mailto:arcn...@gmail.com>
28. August 2014 00:36
Thank you Nico and Jim.
Also Jim, that issue only talks about ImageView IIRC. Are you going to
implement something similar for shapes? I know it's not the same, but
I wanted to show pixelated shapes as well (think about zooming in past
100% in Illustrator with pixel preview enabled). I don't keep my hopes
up, but it's free to ask :).
Jim Graham <mailto:james.gra...@oracle.com>
28. August 2014 00:01
On 8/27/14 1:04 AM, Nico Krebs | www.mensch-und-maschine.de wrote:
Question 1:
I don't know why setSmooth(false) doesnt work. Perhaps am i using it the
wrong way? I set it for each ImageView object i got in my list. the
scrollpane can`t be "unsmoothed" because of the lack of the setSmooth()
method.
On the other hand, it could just be a bug of JavaFX.
I repeat:
On 8/26/14 4:35 PM, Jim Graham wrote:
We simply haven't implemented this yet:
https://javafx-jira.kenai.com/browse/RT-28629
...jim
setSmooth() is not hooked up to any mechanism at all. Nothing
examines this property in the implementation (to be clear, the FX
object "passes it on" to the NG implementation object which receives
it with an empty method body). This is true of ImageView and of
Shapes...
...jim
Nico Krebs | www.mensch-und-maschine.de
<mailto:nicokrebs....@googlemail.com>
27. August 2014 10:04
Hi Edu,
short story: i built a very simple image file format: a zip file,
containing a meta.xml file and several png images. the xml defines the
position of each png in the image. this way i have a very basic
layered image file. I built the first version with Swing in JDK 7 but
switched to JavaFX8 last week. The swing-version workes and lets me
see and manipulate single pixels when i zoom.
Question 1:
I don't know why setSmooth(false) doesnt work. Perhaps am i using it
the wrong way? I set it for each ImageView object i got in my list.
the scrollpane can`t be "unsmoothed" because of the lack of the
setSmooth() method.
On the other hand, it could just be a bug of JavaFX.
Question 2:
i want to load the image with all it`s layers once and then be able to
zoom so far that i can see the pixels (as you can do in photoshop or
even paint). for example because i want to modify the image pixel by
pixel (think of icons, gif animations and other tiny images)
It`s an image manipulation tool for artists, who want to do very basic
stuff like drawing single pixels, lines and do some effect magic. To
be able to do precise image manipulation manually it is indispensable
that you can work with the untouched image data. as you can in gimp,
paint, photoshop,...
i hope I answered your questions. if not, tell me ;)
Nico
Edu García <mailto:arcn...@gmail.com>
26. August 2014 23:13
I'm curious. Why setSmooth doesn't work?
Also, do I really need to create an image in memory just to render
something showing the pixels?
--
Nico Krebs
Michelangelostraße 1
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