Re: JAVAFX Rendering

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Tue, 11 Dec 2012 15:04:05 -0500

Message-ID:

<50c791b5$0$287$14726298@news.sunsite.dk>

On 12/11/2012 12:14 PM, nataraja gadikota wrote:

On Monday, December 10, 2012 10:37:21 PM UTC+5:30, Arne Vajh?j wrote:

On 12/10/2012 6:43 AM, nataraja gadikota wrote:

I'm looking for a Java based solution for my canvas problem
TCL/TK is not able to handle 3million rectangles on a canvas !

https://groups.google.com/forum/?fromgroups=#!topic/comp.lang.tcl/Dxh4KyOOojY

"
Today I had to visualize a huge Data Structure with 146k nodes
and each node is a set of polys/rectangles >20

I've drawn everything on a Canvas , Appximately 3 million objects were created
All my operations Zoom , Scrolling , Moving Objects on this Canvas have become very SLOW

I've tested the code with 100 nodes , everything is working fine at that level
When I increase the DS , I'm looking at these issues .

Any suggestions previous experiences on how to improve the speed ?
"

Can JavaFX , Java/Swing Handle that much data ?

3 million graphical objects seems like a lot.

But:
- plenty of CPU and RAM
- a 64 bit JVM to utilize the memory
- a GPU that is supported by JavaFX for hardware acceleration
- Java' JIT
then it is probably your best chance for good performance at
this abstraction level.

> CPU/GPU/RAM is not a problem
> I'm working on huge server's !
>
> with all these do you think I can handle
> even 3million is a small number for my application !!
> there could be x10 more

I don't know.

You should measure.

But if the combo above can not do it, then I doubt that any
solution at this abstraction level can do it.

So measure.

If it works then fine.

If it does not work then either:
- go low level with the cost of that
- redefine your solution so you do not need so many gui objects

Arne