Thanks for the inspection Larry, and for posting the code.
The Sunburned Surveyor
On Fri, Feb 19, 2010 at 7:30 AM, Larry Becker <becker.la...@gmail.com> wrote:
> Well, there is good news and bad news. The good news is that the selection
> feedback slowdown issue that I am duplicating was not caused by the mouse
> wheel zoom mod. The bad news is that the issue is also present in the OJ
> 1.3 release. It is not, as I thought, related to differences in
> RenderManager. I suspect the selection renderer itself may be the
> problem. Since SkyJUMP doesn't have the problem, it should be only a matter
> of comparing the two.
>
> For those who haven't duplicated the problem, you will need a large vector
> layer. I used the contour layer (26MB) from the Madison county dataset
> that I recently gave links to.
>
> Not sure how all this relates to luca's right click mouse menu problem. It
> may be related to how java allocates threads under linux.
>
> @Luca, would you please try to duplicate the problem using the 1.3 release?
>
> regards,
> Larry
>
> On Fri, Feb 19, 2010 at 8:38 AM, Larry Becker <becker.la...@gmail.com>
> wrote:
>>
>> Hi,
>>
>> I have duplicated a problem in OJ with selection feedback. When a large
>> vector dataset is loaded, and mouse wheel zoom is used to zoom out,
>> selection feedback stops working for a while. Note that the selection
>> mechanism is still working as verified by the status panel, but items do not
>> highlight in yellow. After a while, selection feedback starts working
>> again. This problem does not exist in SkyJUMP so it is probably due to
>> differences in the RenderManager.
>>
>> The mouse wheel modification (shown below) uses a timer to ensure that
>> the view is redrawn after 700 ms. To prevent it from happening until that
>> time, the RenderManager's setPaintingEnabled(false) method is used. In the
>> Timer's actionPerformed method, it is set back to true and a repaintPanel is
>> used to update the view. In SkyJUMP, the RenderManager itself has been
>> modified to do this. It may be necessary to modify RenderManager in OJ to
>> avoid this problem. I will look for a workaround first.
>>
>> Here is the old method of handling mouse wheel moved:
>>
>> public void mouseWheelMoved(MouseWheelEvent e) {
>> int nclicks = e.getWheelRotation(); //negative is up/away
>> try {
>> double zoomFactor = (nclicks > 0)
>> ? (1 / (Math.abs(nclicks)*WHEEL_ZOOM_IN_FACTOR)) :
>> (Math.abs(nclicks)*WHEEL_ZOOM_IN_FACTOR);
>> zoomAt(e.getPoint(), zoomFactor, false);
>> } catch (Throwable t) {
>> getPanel().getContext().handleThrowable(t);
>> }
>> }
>>
>> Here is the new method:
>>
>> public void mouseWheelMoved(MouseWheelEvent e) {
>> int nclicks = e.getWheelRotation(); //negative is up/away
>> mouseWheelCount = mouseWheelCount + nclicks;
>> if (mouseWheelCount == 0)
>> scale = 1d;
>> else if (mouseWheelCount < 0)
>> scale = Math.abs(mouseWheelCount)*WHEEL_ZOOM_IN_FACTOR;
>> else
>> scale = 1 / (mouseWheelCount*WHEEL_ZOOM_IN_FACTOR);
>> try {
>> if (mouseWheelUpdateTimer == null) {
>> RenderingManager renderManager =
>> getPanel().getRenderingManager();
>> renderManager.setPaintingEnabled(false);
>> mouseWheelUpdateTimer = new Timer(700,
>> new ActionListener() {
>> public void actionPerformed(ActionEvent e) {
>> try {
>> zoomAt(getCentre(), scale, false);
>> mouseWheelUpdateTimer.stop();
>> mouseWheelUpdateTimer = null;
>> mouseWheelCount = 0;
>> origImage = null;
>> RenderingManager renderManager =
>> getPanel().getRenderingManager();
>> renderManager.setPaintingEnabled(true);
>> renderManager.repaintPanel();
>> } catch (NoninvertibleTransformException e1) {
>> }
>> }
>> });
>> mouseWheelUpdateTimer.start();
>> mouseWheelUpdateTimer.setRepeats(false);
>> cacheImage();
>> scaleImageAtCentre(scale);
>> } else {
>> mouseWheelUpdateTimer.restart();
>> scaleImageAtCentre(scale);
>> }
>> } catch (Throwable t) {
>> getPanel().getContext().handleThrowable(t);
>> }
>> }
>>
>> regards,
>> Larry
>>
>> On Fri, Feb 19, 2010 at 2:25 AM, luca marletta <lucama...@gmail.com>
>> wrote:
>>>
>>> Hi,
>>> I'd like to check opinions about the new feature to speed up zoom is
>>> very powerful but in my case causes a delay on on every other events
>>> and it becomes really not much nice to work.
>>>
>>> I observe delay for window menu on right mouse click, select items and so
>>> on.
>>>
>>> Could you write comment to understand if that is just my problem?
>>>
>>> luca
>>>
>>>
>>> luca marletta
>>> www.beopen.it
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Download Intel® Parallel Studio Eval
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>>
>>
>>
>> --
>> Larry Becker
>> Integrated Systems Analysts, Inc.
>
>
>
> --
> Larry Becker
> Integrated Systems Analysts, Inc.
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Jump-pilot-devel mailing list
> Jump-pilot-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
>
>
------------------------------------------------------------------------------
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proactively, and fine-tune applications for parallel performance.
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http://p.sf.net/sfu/intel-sw-dev
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