I'm waiting on Stefan's magic 1000 point polygon. Mine draws too quickly to
benchmark.
On Tue, Feb 23, 2010 at 10:08 AM, Sunburned Surveyor <
sunburned.surve...@gmail.com> wrote:
> Larry,
>
> Kudos for your work on improving rendering performance in OpenJUMP.
> Should we test the fix you mention where we "rough clip" large
> lineStrings that contain the viewport in their bounding box?
>
> The Sunburned Surveyor
>
> On Mon, Feb 22, 2010 at 3:04 PM, Larry Becker <becker.la...@gmail.com>
> wrote:
> > If the problem is what we have been assuming, I see where Martin's
> algorithm
> > could be applied:
> >
> > com.vividsolutions.jump.workbench.ui.renderer.style.StyleUtil#toShape()
> >
> > We could do a conversion of large linestrings whose bounding boxes
> contain
> > the viewport, to "rough clip" MultiLineStrings instead of the
> clipGeometry
> > call. This should enable Java's graphics clipper to do its work
> > efficiently. The tough part is to not slow down the best case
> performance
> > too much.
> >
> > Larry
> >
> >
> > On Mon, Feb 22, 2010 at 4:44 PM, Martin Davis <mbda...@refractions.net>
> > wrote:
> >>
> >> Yeah, it seems to me that I haven't seen much speed impact from
> >> rendering fairly large linestrings. I suppose it's possible that if the
> >> linestring was really complex the intersection() computation might be
> >> slow, however.
> >>
> >> In any case, computing a full intersection() is definitely doing more
> >> work than required for rendering. So this would be a good thing to
> >> optimize. It's one of those things which isn't necessarily all that
> >> noticeable, but is quietly burning cycles all the time.
> >>
> >> Larry Becker wrote:
> >> > Better send it to me too. All the cases I've found in the wild
> render
> >> > very
> >> > quickly. See the attached for an example.
> >> >
> >> > Larry
> >> >
> >> > On Mon, Feb 22, 2010 at 4:13 PM, Martin Davis
> >> > <mbda...@refractions.net>wrote:
> >> >
> >> >
> >> >> Stefan, for future reference can you send the linestring, and the
> >> >> viewport which causes the problem?
> >> >>
> >> >> Stefan Steiniger wrote:
> >> >>
> >> >>> mhm.. ok, so I would guess the problem is related to the size of the
> >> >>> geometries and its drawing?
> >> >>> I recently had a problem - drawing a linestring that consisted of
> more
> >> >>> than 1000 points. I couldn't do anything for 20-30 seconds on MS
> >> >>> Vista,
> >> >>> my XP was a bit faster. However, the problem solved when I connected
> >> >>> the
> >> >>> 1000 points with linestrings that have only a start and endpoint,
> i.e.
> >> >>> instead of drawing 1 linestring a had to draw now 500, but here the
> >> >>> 500
> >> >>> lines could be drawn one after each other, and everything is done
> >> >>> within
> >> >>> 2-3 seconds (instead of 20 secs)
> >> >>>
> >> >>> (if Larry wants to test, I can send that linestring?)
> >> >>>
> >> >>> however, I am not sure why working with the 1000 points linestring
> is
> >> >>> so
> >> >>> slow (i.e. does paint make some tests?)
> >> >>>
> >> >>> stefan
> >> >>>
> >> >>> luca marletta wrote:
> >> >>>
> >> >>>
> >> >>>> luca marletta
> >> >>>> www.beopen.it
> >> >>>>
> >> >>>>
> >> >>>>
> >> >>>> On Fri, Feb 19, 2010 at 5:42 PM, Larry Becker
> >> >>>> <becker.la...@gmail.com>
> >> >>>>
> >> >> wrote:
> >> >>
> >> >>>>> Hi luca,
> >> >>>>>
> >> >>>>> When you try to select features, does the status bar quickly
> show
> >> >>>>>
> >> >> your
> >> >>
> >> >>>>> selection count, even though no selection handles appear?
> >> >>>>>
> >> >>>>> If not, this explains why the right click menu is not appearing.
> >> >>>>> It
> >> >>>>>
> >> >> needs
> >> >>
> >> >>>>> selection information to enable or disable options.
> >> >>>>>
> >> >>>>>
> >> >>>> Larry, no I had not much problem with showing selection count, is
> >> >>>> anyway
> >> >>>>
> >> >> quick.
> >> >>
> >> >>>> I noticed an important stuff.
> >> >>>>
> >> >>>> May dataset is full of large and aggregated geometry and in this
> case
> >> >>>> I guess geometry index can not much help.
> >> >>>>
> >> >>>> If I explode all, I reduce the delay a lot.
> >> >>>>
> >> >>>> luca
> >> >>>>
> >> >>>>
> >> >>>>
> >> >>
> >> >>
> ------------------------------------------------------------------------------
> >> >>
> >> >>>> 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
> >> >>>>
> >> >>>>
> >> >>>
> >> >>
> >> >>
> ------------------------------------------------------------------------------
> >> >>
> >> >>> 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
> >> >>>
> >> >>>
> >> >>>
> >> >> --
> >> >> Martin Davis
> >> >> Senior Technical Architect
> >> >> Refractions Research, Inc.
> >> >> (250) 383-3022
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> ------------------------------------------------------------------------------
> >> >> 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
> >> >>
> >> >>
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> ------------------------------------------------------------------------
> >> >
> >> >
> ------------------------------------------------------------------------
> >> >
> >> >
> >> >
> ------------------------------------------------------------------------------
> >> > 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
> >> >
> >>
> >> --
> >> Martin Davis
> >> Senior Technical Architect
> >> Refractions Research, Inc.
> >> (250) 383-3022
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> 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
> >
> >
> >
> > --
> > 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
> >
> >
>
>
> ------------------------------------------------------------------------------
> 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
>
--
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
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