[General] Stream Tracer Can't evaluate dataset

Eko · February 23, 2018, 03:29

Hey guys,

I need your help. I am postprocessing a case in paraview 5.0.1 and once I use stream tracer I get the following output message.

Code:

Can't evaluate dataset
In /build/paraview-arsa8T/paraview-5.0.1+dfsg1/VTK/Filters/FlowPaths/vtkAbstractInterpolatedVelocityField.cxx,
 line 113
vtkInterpolatedVelocityField (0x4c958d30)

What does this message mean? Is there a mistake in my simulation or does it only have to do with paraview and is there a way to fix it?
I can see a part of the stream but it seems like more than half of it is missing

Greetings

Eko

cfd lover · March 2, 2018, 02:17

Hi
In order to visualize stream lines there are two other ways.
First you can use streamlines utility.
And you can also use LIC which is really useful for streamlines.

Eko · March 2, 2018, 03:22

Quote:

Originally Posted by cfd lover

Hi
In order to visualize stream lines there are two other ways.
First you can use streamlines utility.
And you can also use LTC which is really useful for streamlines.

First of all thanks for your answer

But what does LTC stand for and where can I find it?

cfd lover · March 2, 2018, 09:50

LIC stands for line integral convolution.
I have a good tutorial.give me your email. I will send you the pdf file.

Eko · March 5, 2018, 07:14

Thanks a lot

cbcoutinho · April 14, 2018, 20:08

I'm having the same problem - what was your solution to removing the "can't evaluate dataset!" error?

Eko · April 21, 2018, 08:31

Quote:

Originally Posted by cbcoutinho

I'm having the same problem - what was your solution to removing the "can't evaluate dataset!" error?

Wasn't to remove the error message and I don't really know where it comes from. It can be an issue with paraview or maybe even a problem/mistake in OpenFOAM case setup.

February 23, 2018, 03:29	Stream Tracer Can't evaluate dataset	#1
Eko Member Join Date: Dec 2017 Location: Germany Posts: 48 Rep Power: 8	Hey guys, I need your help. I am postprocessing a case in paraview 5.0.1 and once I use stream tracer I get the following output message. Code: Can't evaluate dataset In /build/paraview-arsa8T/paraview-5.0.1+dfsg1/VTK/Filters/FlowPaths/vtkAbstractInterpolatedVelocityField.cxx, line 113 vtkInterpolatedVelocityField (0x4c958d30) What does this message mean? Is there a mistake in my simulation or does it only have to do with paraview and is there a way to fix it? I can see a part of the stream but it seems like more than half of it is missing Greetings Eko

March 2, 2018, 02:17	streamlines	#2
cfd lover New Member Ali Mohammadi Join Date: Oct 2017 Posts: 15 Rep Power: 8	Hi In order to visualize stream lines there are two other ways. First you can use streamlines utility. And you can also use LIC which is really useful for streamlines. Last edited by cfd lover; March 2, 2018 at 09:46.

March 2, 2018, 09:50	Lic	#4
cfd lover New Member Ali Mohammadi Join Date: Oct 2017 Posts: 15 Rep Power: 8	LIC stands for line integral convolution. I have a good tutorial.give me your email. I will send you the pdf file.

March 5, 2018, 07:14		#5
Eko Member Join Date: Dec 2017 Location: Germany Posts: 48 Rep Power: 8	Thanks a lot Last edited by Eko; March 12, 2018 at 07:27.

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