Hi, Jeff and Lloyd, thanks for discussion, i'll try your solution with R=0. Actually, i was thinking that the problem is with algorithms in regrid and connetct modules and not with the size dataset. I've tried Tecplot to do the same, it took several minutes. So, here is another one quastion: does anybody knows alternative modules to solve problems like this -- i mean regridding or triangulation?
Thanks, Eugene -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jeff Braun Sent: Friday, July 04, 2003 11:24 PM To: [email protected] Subject: Re: [opendx-users] large data sets We added an option to the Regrid module that puts the data value at the closest grid point. If more than one scattered data point share the same grid point, then the values are averaged. It is very quick if you want to give it a shot. Just set the radius = 0 for this option. Its documented in 4.3 and I believe 4.2. Jeff At 12:55 PM 7/4/2003 -0400, you wrote: >Actually, that's a pretty small data set. The problem here is not the >number of points per se, it's the speed of the spatial sorting in Connect >and Regrid, if I recall. However, there was a discussion on the mail group >a year or so ago, about reimplementing some of that code and/or adding some >additional capability to address this problem. Jeff, David: do you know >what ever happened to those ideas? > >FYI, I and others have used DX on reasonable new Intel/Linux workstations >with millions of gridded data points. > > >"å×ÇÅÎÉÊ óÁ×ÅÎËÏ×" <[EMAIL PROTECTED]>@opendx.watson.ibm.com on >07/04/2003 11:01:16 AM > >Please respond to [email protected] > >Sent by: [EMAIL PROTECTED] > > >To: <[email protected]> >cc: >Subject: [opendx-users] large data sets > > > >Hello, > >I've tried to visualize with OpenDX 2d scalar scattered data with large >number of points -- over 150000. I've used "Connect" and "AutoGrid" modules >and found out that it takes unacceptable time to construct grid structure >-- >more then several hours. Does anybody knows efficient way to work with such >a large data sets? I'm using OpenDX 4.2.0, RedHat Linux 7.3. > > >Thank you, >Eugene Savenkov
