Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
Hi Mohammad,
Sorry for late my reply.
There is an easy example:
# vtk DataFile Version 2.0
QuadCell
ASCII
DATASET UNSTRUCTURED_GRID
POINTS 9 FLOAT
0 0 0
0.4 0 0
1 0 0
0 0.25 0
0.4 0.25 0
1 0.25 0
0 1 0
0.4 1 0
1 1 0
CELLS 4 20
4 0 1 4 3
4 1 2 5 4
4 3 4 7 6
4 4 5 8 7
CELL_TYPES 4
9 9 9 9
CELL_DATA 4
SCALARS scalar FLOAT 1
LOOKUP_TABLE DEFAULT
1.0
2.0
4.0
8.0
This source includes 4 Quad cells and Cell-based Scalar values.
These cells' area values are different.
If you apply Cell Data to Point Data filter, the ID:4 point's
value is calculated as 3.75 {= (1.0 + 2.0 + 4.0 + 8.0) / 4.0}.
Magician
On 2012/07/18, at 7:56, Mohammad Mirzadeh wrote:
Hi Magician,
Thanks for the information. Could you please let me know of your source?
Thanks,
Mohammad
On Tue, Jul 17, 2012 at 3:21 PM, Magician f_magic...@mac.com wrote:
Hi Mohammad,
According to my research, Cell Data to Point Data is just calculating
averages of surrounding cells.
I think it's not proper to explain the function as 'interpolation'.
Also I hope it will be adapted to geometric interpolation method.
Magician
Thanks that might work. Just another question. What type of interpolation
does PV use to map cell data information to point data? Obviously there are
more nodes than cells ... is it using some sort of least-square method?
On Tue, Jul 17, 2012 at 12:36 AM, Felipe Bordeu
felipe.bor...@ec-nantes.frwrote:
hi, you can use the shrink filter with a shrink factor of 0.9 to get
disconnected nodes. the you can apply the warp filter.
Felipe
Le 17/07/2012 03:09, Mohammad Mirzadeh a ?crit :
Yeah I did that. Problem is, cell_data variables are discontinuous at some
points and I fear interpolation will introduce unnecessary oscillations ...
On Mon, Jul 16, 2012 at 6:03 PM, Scott, W Alan wasc...@sandia.gov wrote:
Could you just run Point Data to Cell Data, then the Warp by scalar
filter?
Alan
*From:* paraview-boun...@paraview.org [mailto:
paraview-boun...@paraview.org] *On Behalf Of *Mohammad Mirzadeh
*Sent:* Monday, July 16, 2012 6:52 PM
*To:* paraview@paraview.org
*Subject:* [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA
Is there a filter similar to warp by scalar but for CELL_DATA variables?
___
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the ParaView Wiki at:
http://paraview.org/Wiki/ParaView
Follow this link to subscribe/unsubscribe:
http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
hi, you can use the shrink filter with a shrink factor of 0.9 to get disconnected nodes. the you can apply the warp filter. Felipe Le 17/07/2012 03:09, Mohammad Mirzadeh a écrit : Yeah I did that. Problem is, cell_data variables are discontinuous at some points and I fear interpolation will introduce unnecessary oscillations ... On Mon, Jul 16, 2012 at 6:03 PM, Scott, W Alan wasc...@sandia.gov mailto:wasc...@sandia.gov wrote: Could you just run Point Data to Cell Data, then the Warp by scalar filter? Alan *From:*paraview-boun...@paraview.org mailto:paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org mailto:paraview-boun...@paraview.org] *On Behalf Of *Mohammad Mirzadeh *Sent:* Monday, July 16, 2012 6:52 PM *To:* paraview@paraview.org mailto:paraview@paraview.org *Subject:* [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA Is there a filter similar to warp by scalar but for CELL_DATA variables? ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
Thanks that might work. Just another question. What type of interpolation does PV use to map cell data information to point data? Obviously there are more nodes than cells ... is it using some sort of least-square method? On Tue, Jul 17, 2012 at 12:36 AM, Felipe Bordeu felipe.bor...@ec-nantes.frwrote: hi, you can use the shrink filter with a shrink factor of 0.9 to get disconnected nodes. the you can apply the warp filter. Felipe Le 17/07/2012 03:09, Mohammad Mirzadeh a écrit : Yeah I did that. Problem is, cell_data variables are discontinuous at some points and I fear interpolation will introduce unnecessary oscillations ... On Mon, Jul 16, 2012 at 6:03 PM, Scott, W Alan wasc...@sandia.gov wrote: Could you just run Point Data to Cell Data, then the Warp by scalar filter? Alan *From:* paraview-boun...@paraview.org [mailto: paraview-boun...@paraview.org] *On Behalf Of *Mohammad Mirzadeh *Sent:* Monday, July 16, 2012 6:52 PM *To:* paraview@paraview.org *Subject:* [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA Is there a filter similar to warp by scalar but for CELL_DATA variables? ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe:http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
Hi Mohammad, According to my research, Cell Data to Point Data is just calculating averages of surrounding cells. I think it's not proper to explain the function as 'interpolation'. Also I hope it will be adapted to geometric interpolation method. Magician Thanks that might work. Just another question. What type of interpolation does PV use to map cell data information to point data? Obviously there are more nodes than cells ... is it using some sort of least-square method? On Tue, Jul 17, 2012 at 12:36 AM, Felipe Bordeu felipe.bor...@ec-nantes.frwrote: hi, you can use the shrink filter with a shrink factor of 0.9 to get disconnected nodes. the you can apply the warp filter. Felipe Le 17/07/2012 03:09, Mohammad Mirzadeh a ?crit : Yeah I did that. Problem is, cell_data variables are discontinuous at some points and I fear interpolation will introduce unnecessary oscillations ... On Mon, Jul 16, 2012 at 6:03 PM, Scott, W Alan wasc...@sandia.gov wrote: Could you just run Point Data to Cell Data, then the Warp by scalar filter? Alan *From:* paraview-boun...@paraview.org [mailto: paraview-boun...@paraview.org] *On Behalf Of *Mohammad Mirzadeh *Sent:* Monday, July 16, 2012 6:52 PM *To:* paraview@paraview.org *Subject:* [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA Is there a filter similar to warp by scalar but for CELL_DATA variables? ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
Hi Magician, Thanks for the information. Could you please let me know of your source? Thanks, Mohammad On Tue, Jul 17, 2012 at 3:21 PM, Magician f_magic...@mac.com wrote: Hi Mohammad, According to my research, Cell Data to Point Data is just calculating averages of surrounding cells. I think it's not proper to explain the function as 'interpolation'. Also I hope it will be adapted to geometric interpolation method. Magician Thanks that might work. Just another question. What type of interpolation does PV use to map cell data information to point data? Obviously there are more nodes than cells ... is it using some sort of least-square method? On Tue, Jul 17, 2012 at 12:36 AM, Felipe Bordeu felipe.bor...@ec-nantes.frwrote: hi, you can use the shrink filter with a shrink factor of 0.9 to get disconnected nodes. the you can apply the warp filter. Felipe Le 17/07/2012 03:09, Mohammad Mirzadeh a ?crit : Yeah I did that. Problem is, cell_data variables are discontinuous at some points and I fear interpolation will introduce unnecessary oscillations ... On Mon, Jul 16, 2012 at 6:03 PM, Scott, W Alan wasc...@sandia.gov wrote: Could you just run Point Data to Cell Data, then the Warp by scalar filter? Alan *From:* paraview-boun...@paraview.org [mailto: paraview-boun...@paraview.org] *On Behalf Of *Mohammad Mirzadeh *Sent:* Monday, July 16, 2012 6:52 PM *To:* paraview@paraview.org *Subject:* [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA Is there a filter similar to warp by scalar but for CELL_DATA variables? ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
Could you just run Point Data to Cell Data, then the Warp by scalar filter? Alan From: paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org] On Behalf Of Mohammad Mirzadeh Sent: Monday, July 16, 2012 6:52 PM To: paraview@paraview.org Subject: [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA Is there a filter similar to warp by scalar but for CELL_DATA variables? ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] [EXTERNAL] Warp by scalar for CELL_DATA
Yeah I did that. Problem is, cell_data variables are discontinuous at some points and I fear interpolation will introduce unnecessary oscillations ... On Mon, Jul 16, 2012 at 6:03 PM, Scott, W Alan wasc...@sandia.gov wrote: Could you just run Point Data to Cell Data, then the Warp by scalar filter? ** ** Alan ** ** *From:* paraview-boun...@paraview.org [mailto: paraview-boun...@paraview.org] *On Behalf Of *Mohammad Mirzadeh *Sent:* Monday, July 16, 2012 6:52 PM *To:* paraview@paraview.org *Subject:* [EXTERNAL] [Paraview] Warp by scalar for CELL_DATA ** ** Is there a filter similar to warp by scalar but for CELL_DATA variables?** ** ** ** ** ** ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
