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Hi Domink<BR> <BR>Sounds like I do't know what the Paraview definition of plain raw format is. I have attached the simple test file - just 3 points with a scalar value. It has a header section but paraview should recognise that anyway.<BR> <BR>Anything look odd in there?<BR> <BR>Thanks<BR> <BR>Lester<BR><BR>> From: dominik@itis.ethz.ch<BR>> To: lester_anderson1963@hotmail.com<BR>> Subject: Re: [Paraview] Data range problem<BR>> Date: Tue, 14 Oct 2008 08:25:22 +0200<BR>> CC: paraview@paraview.org<BR>> <BR>> Hi, if you have tried all datatypes in Paraview then chances are very high <BR>> your data is not plain raw format but includes some header etc. I don't have <BR>> anything at hand in raw format but would be surprized there is none in VTK <BR>> example data.<BR>> PS. I think some little programming might often help you out. You might want <BR>> to look at python if you want to keep it at minimum (plus it integrates with <BR>> VTK and PV).<BR>> <BR>> Dominik<BR>> <BR>> On Monday 13 October 2008 11:00:22 pm Lester Anderson wrote:<BR>> > Hi Dominik<BR>> ><BR>> > I do not have Matlab to test, but there should be no issue of 'endianness'<BR>> > as I work on Windows and use PC-based editors. The file type does not seem<BR>> > to be the issue, but more the data within (just guessing).<BR>> ><BR>> > I have tried all the data type variants without success: other than being<BR>> > able to read the points in.<BR>> ><BR>> > Didn't seem to make much odds using xyzc (0 1 2 3) or (0.0 1.0 2.0 3.0)<BR>> ><BR>> > Do you have an example raw data file? It would be so much more convenient<BR>> > to be able to load up data via CSV (but that currently doesn't work).<BR>> ><BR>> > What would be the best way of loading data into Paraview that does not<BR>> > require any programming or major work?<BR>> ><BR>> > Lester > From: dominik@itis.ethz.ch> To: lester_anderson1963@hotmail.com><BR>> > Subject: Re: [Paraview] Data range problem> Date: Mon, 13 Oct 2008 09:03:58<BR>> > +0200> CC: paraview@paraview.org> > A simple test you could do is to try to<BR>> > read the raw binary file into matlab. > there you can also specify both<BR>> > endianness and precision (double, int, etc.). > I bet the reason you do not<BR>> > get the right numbers is that you import a wrong > datatype.> > Dominik> ><BR>> > On Sunday 12 October 2008 11:54:36 pm Lester Anderson wrote:> > I have used<BR>> > a plain text editor to write a simple ascii structure, and also> > tried<BR>> > using Surfer (Golden Sofware) to prepare .DAT file do the same (eg> > space<BR>> > delimited or comma delimited). Basically I am testing a simple ascii> ><BR>> > text file structure and it ckearly loads the data (points plot where they><BR>> > > should be), but it is unclear how to set the data type. If we are<BR>> > dealing> > with positive an negative numbers then I assume that means we<BR>> > need a signed> > integer or real number type.> >> > Perhaps if you could<BR>> > show an example data file that works in the raw import> > as an xyz,value<BR>> > it might be clearer as to how to proceed. Thanks for the> > help, I'm sure<BR>> > I'm missing something very obvious here just can't put my> > finger on it<BR>> > yet!> >> > Lester> From: dominik@itis.ethz.ch> To:<BR>> > lester_anderson1963@hotmail.com>> > Subject: Re: [Paraview] Data range<BR>> > problem> Date: Sun, 12 Oct 2008 20:58:52> > +0200> CC:<BR>> > paraview@paraview.org> > How do you write the data to a file?> >> ><BR>> > Dominik> > On Sunday 12 October 2008 02:36:27 pm Lester Anderson wrote:> >><BR>> > > Hi Dominik> >> > So how can I define the correct datatype? For example,<BR>> > if> > it is just signed> > integers like the test I made (-5 to +5), or<BR>> > real> > numbers (eg -2.54 to> > 5.55). I set the file to LittleEndian as<BR>> > I'm on a> > PC> >> > Importing the data via the raw format is working, it's<BR>> > just> > working out the> > correct type to make it work!> >> > Thanks for<BR>> > the help>> > >> > Lester > From: dominik@itis.ethz.ch> To:<BR>> > paraview@paraview.org>> > Subject:> > Re: [Paraview] Data range problem><BR>> > Date: Sun, 12 Oct 2008> > 12:17:03 +0200>> > CC:<BR>> > lester_anderson1963@hotmail.com> > You most likely> > imposed wrong> ><BR>> > datatype when importing the raw stuff.> > Dominik> > On> > Sunday 12<BR>> > October> > 2008 10:55:18 am Lester Anderson wrote:> > Hello> >> >> > I have<BR>> > just created> > a test as a set of random values:> >> >> >> ><BR>> > 'x','y','z','grav'0,0,0,20,0,1,30,0,2,50,1,0,-10.1.1,-30,1,2,-50.2.0,10,2,1<BR>> >> >> >>> >> ><BR>> > >,20,2,2,51,0,0,-31,0,1,-41,0,2,-11,1,0,01.1.1,-21,1,2,21.2.0,11,2,1-11,2,2<BR>> >> >> >,0><BR>> > >2,0,0,02,0,1-52,0,2,-42,1,0,-12.1.1,12,1,2,22.2.0,52,2,1,42,2,2,4>> > >><BR>> > >> > It is a cube of point values (x,y,z) with a test scalar (grav). The> ><BR>> > data> >> > range of 'grav' is -5 to +5> >> > I imported the data into> ><BR>> > Paraview as a> > raw(binary) format file which seemed> > ok, with the> ><BR>> > extents: 0 to 2 on> > (x,y,z). The result was a Image (uniform> >> ><BR>> > Rectilinear Grid)> >> > When I> > look at the data information it shows<BR>> > the> > data range as 2573, 13612> >> > (min,max) - what is going on here?><BR>> > >> >> > Thanks> >> > Lester> >> >> ><BR>> > _________________________________________________________________> > Make><BR>> > > a> > mini you and download it into Windows Live Messenger> >> >> ><BR>> > http://clk.atdmt.com/UKM/go/111354029/direct/01/> > > > -- > Dominik> >> ><BR>> > Szczerba, Ph.D.> Computational Physics Group> Foundation for Research on><BR>> > >> > Information Technologies in Society> http://www.itis.ethz.ch> >> ><BR>> > _________________________________________________________________> > Make<BR>> > a> > mini you and download it into Windows Live Messenger> >> ><BR>> > http://clk.atdmt.com/UKM/go/111354029/direct/01/> > > > -- > Dominik> ><BR>> > Szczerba, Ph.D.> Computational Physics Group> Foundation for Research on> ><BR>> > Information Technologies in Society> http://www.itis.ethz.ch> ><BR>> > _________________________________________________________________> > Make a<BR>> > mini you and download it into Windows Live Messenger> ><BR>> > http://clk.atdmt.com/UKM/go/111354029/direct/01/> > > > -- > Dominik<BR>> > Szczerba, Ph.D.> Computational Physics Group> Foundation for Research on<BR>> > Information Technologies in Society> http://www.itis.ethz.ch<BR>> > _________________________________________________________________<BR>> > Get all your favourite content with the slick new MSN Toolbar - FREE<BR>> > http://clk.atdmt.com/UKM/go/111354027/direct/01/<BR>> <BR>> <BR>> <BR>> -- <BR>> Dominik Szczerba, Ph.D.<BR>> Computational Physics Group<BR>> Foundation for Research on Information Technologies in Society<BR>> http://www.itis.ethz.ch<BR><BR><br /><hr />Try Facebook in Windows Live Messenger! <a href='http://clk.atdmt.com/UKM/go/111354030/direct/01/' target='_new'>Try it Now!</a></body>
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