[General] VTK visualisation

lalupp · February 24, 2011, 04:29

I am planning to export my flow solution ( my own code) through legacy VTK format
My problem is flow past a sphere. I have plotted the necessary stream lines etc using VISIT. But I couldn't visualize sphere in the problem. My question is How to visualize surface data in paraview/visit.

Initially I exported all cell data in unstructured mesh format
Then when I tried to use poly data in the same file it is giving error

My visulisation software is Visit /paraview

Pls help

shirazbj · February 24, 2011, 22:29

Quote:

Originally Posted by lalupp

But I couldn't visualize sphere in the problem.

have you visualized the mesh?

lalupp · February 25, 2011, 03:02

I have visualized my mesh in paraview as a volume mesh but i dont now how to visulise the sphere alone(surface mesh)

pradeap · February 25, 2011, 05:21

Try to plot the scalars in VISIT

Add------>Volume------->scalars

hopefully this may work

praveen · February 25, 2011, 08:19

Paraview will have some filter called Extract Surface. Try that. It will give you all boundary surfaces. Then you may have to clip the domain to get only the boundary you want.

Alternately, write out only the surface elements and associated solution to vtk file.

lalupp · March 2, 2011, 01:46

Thank you
But I need to visualize the stream lines as well as the sphere. When I tried to extract surface stream line disappears (paraview)

lalu P.P
research scholar
Cochin University
kerala -india

February 24, 2011, 04:29	VTK visualisation	#1
lalupp Member lalupp Join Date: Jul 2010 Location: India Posts: 44 Rep Power: 15	I am planning to export my flow solution ( my own code) through legacy VTK format My problem is flow past a sphere. I have plotted the necessary stream lines etc using VISIT. But I couldn't visualize sphere in the problem. My question is How to visualize surface data in paraview/visit. Initially I exported all cell data in unstructured mesh format Then when I tried to use poly data in the same file it is giving error My visulisation software is Visit /paraview Pls help

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February 25, 2011, 03:02		#3
lalupp Member lalupp Join Date: Jul 2010 Location: India Posts: 44 Rep Power: 15	I have visualized my mesh in paraview as a volume mesh but i dont now how to visulise the sphere alone(surface mesh)

February 25, 2011, 05:21		#4
pradeap New Member kumar Join Date: Jun 2010 Posts: 20 Rep Power: 15	Try to plot the scalars in VISIT Add------>Volume------->scalars hopefully this may work

February 25, 2011, 08:19		#5
praveen Super Moderator Praveen. C Join Date: Mar 2009 Location: Bangalore Posts: 342 Blog Entries: 6 Rep Power: 18	Paraview will have some filter called Extract Surface. Try that. It will give you all boundary surfaces. Then you may have to clip the domain to get only the boundary you want. Alternately, write out only the surface elements and associated solution to vtk file.

March 2, 2011, 01:46		#6
lalupp Member lalupp Join Date: Jul 2010 Location: India Posts: 44 Rep Power: 15	Thank you But I need to visualize the stream lines as well as the sphere. When I tried to extract surface stream line disappears (paraview) lalu P.P research scholar Cochin University kerala -india