> In addition: the connectivity filter does something wrong, see the other > attached picture: it cuts the region too early.
Hmmm. I can't reproduce this. Can you share a dataset that demonstrates the problem? > I have attached two pictures of this. In the histogram picture you also see > the wall effect on the left side: the cooler temperatures. how could one > extract these zones? as you guessed right, it can be measured by the wall > distance: 100 mm from the wall should be excluded. This is indeed a difficult problem. I can't think of one or more filters that can compute the wall distance. What about computing a derived quantity such as shear that would be large in the boundary layer. Maybe you can use that to threshold? -berk On Thu, Jan 22, 2009 at 8:24 AM, <[email protected]> wrote: > Hi Berk > > Thanks for helping me with this subject. Now (1) works more or less. I > applied the slice filter to get the cut, then the connectivity filter to mark > the regionIDs, and then applied the extraction filter (ExtractCellsByRegion). > I then applied the IntegrateVariables filter. Under temperature, I can read > 12'200. How can I calculate the average? Divide this by number of cells? by > number of data points? or by the area in square meters? guess the latter, > right? > > I have seen that with the Histogram Filter, one get's the average, too. > > I have attached two pictures of this. In the histogram picture you also see > the wall effect on the left side: the cooler temperatures. how could one > extract these zones? as you guessed right, it can be measured by the wall > distance: 100 mm from the wall should be excluded. > > In addition: the connectivity filter does something wrong, see the other > attached picture: it cuts the region too early. > > thanks > maurice > > below you find the original text > > > > > This is a very cool challenge :-) > > (1) is pretty easy. After the slice filter, apply the Connectivity > filter. This will create a new array called RegionId, which will be > different for each region. You can the use the threshold filter or the > selection mechanism to extract one of these regions. > > Now (2) is more fun. Is there any way of quantifying the regions that > are outside the boundary zone? Is it based on distance? The value of > some other variable? > > -berk > > On Fri, Jan 16, 2009 at 2:20 AM, Maurice Waldner <[email protected]> wrote: >> Dear Paraview Users >> >> I have been using ParaView for some time now, but am unsure of how to >> calculate averages over certain areas. Picture1 shows a side-view of an >> incineration vessel. It has several passes, some of them with separation >> walls. Picture2 depicts a horizontal slice of it. >> I would like to calculate average values (e.g. of velocity, temperature, >> etc.) of some of these SUB-areas of the slice. In addition, very near to the >> walls, there is the wall effect. I would for instance calculate the averages >> of the subareas, excluding the values nearer than 100 mm to the walls. >> >> 1) How can I calculate the averages of the sub-areas? >> 2) How can I calculate the averages of the sub-areas, excluding the >> wall-effect boundary zone? >> >> Thank you very much for your help! >> Maurice > > -- > Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: > http://www.gmx.net/de/go/multimessenger > _______________________________________________ ParaView mailing list [email protected] http://www.paraview.org/mailman/listinfo/paraview
