Computational Science Stack Exchange
Computational Science Stack Exchange

Questions tagged [visualization]

Questions relating to graphing and displaying numerical data

142 questions
36
votes
6 answers

What attributes make a figure "professional-quality"?

I've heard people say that plots produced by ORIGIN tend to look polished and "professional," whereas plots produced by Mathematica do not. However, most plot-creation programs are quite configurable and it stands to reason that with the right…
David Z
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27
votes
6 answers

Visualizing very large link graphs

I am looking for a tool to visualize very large directional link graphs. I currently have ~2million nodes with ~10million edges. I have tried a few different things, but most take hours to even do 100k node graphs What I have tried: I spent a day…
madmaze
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12
votes
1 answer

Visualization of quadtree & octree grids

So-called quadtree and octree grids are quite attractive for applications requiring adaptive mesh refinement. They are for example used in Gerris and Paramesh. Is anyone aware of a good file format for such grids, and supporting visualization…
Jannis Teunissen
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7
votes
2 answers

CFD visualization workflow: Visit vs Paraview vs Tecplot and others

For those familiar with more of these tools than I am, what are the pros and cons of the various tools available? Right now I exclusively use Tecplot for CFD visualization, but it leaves a lot to be desired. The vector graphics are okay, but not…
Aurelius
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6
votes
4 answers

Tools for visualizing large 3D volumes

I have a sequence of 2D images (png files) encoding the partitioning (segmentation) of a large biological 3D volume. In these files, each pixel has a color, representing the 3D object the pixel belongs to. I was wondering if anybody knew of tools…
Amelio Vazquez-Reina
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5
votes
5 answers

How do I create an animation from a 2D model or dataset?

I found the following thread in the physics stackexchange where I saw the video called output attached to the main post. The video can be found here. How would I go about creating such an animation?
WiFO215
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5
votes
3 answers

Quick data visualization

What is the quickest and simplest way to graph or visualize numerical data that is output as text files? Transferring to Matlab is slow, Excel is clunky, things like automatic scaling are essential.
Friasco
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5
votes
2 answers

Which visualisation software for a layered graph?

I have produced a CSV file in the following format: position number | list of positions it links to | 2nd list of positions it links to | ... | 6th list of positions it links to All the items are integers and the lists are of varying size. The…
WorriedInLondon
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4
votes
2 answers

High quality molecular renderings

I would like to use a high-quality renderer (physically based path-tracing or MLT) to generate some images of molecular systems I have. Right now I'm just using some of the simple renderers in VMD, but I am curious if anyone has developed a plugin…
Nick
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4
votes
1 answer

How to visualize multidimensional (d>10) function

I need to visualize the response of a function $$y=f(x_1, x_2, … , x_d)$$ with d in the order of 10-12 (the function f was sampled using finite element simulations). For lower-dimensional design studies (d=4 or 5) I would do a 3D plot, plot of…
Ken Grimes
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3
votes
2 answers

VTK: Subset of Points with same color

I have a set of points, among which a subset needs to have the same color in vtk file format. For ex. all agents with table value 0.0, 0.0, 0.0, 0.0 will have same color. Here is my vtk POINT_DATA 11 SCALARS Gid FLOAT LOOKUP_TABLE…
Stephen Jacob
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3
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1 answer

Best file format for bond connectivity?

I need to generate an output file from my molecular data that can be loaded into VMD to visualize the bond connectivity. I'm not sure what the best choice is. I know the PDB format has a HETATOM record with a CONECT field, but I believe this is…
Nick
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3
votes
2 answers

Can mainstream 3D software be a useful alternative in scientific visualisation?

I hope this is not a vague question. I would like to know if any researchers and students in this community have used or considered using 3D graphics software (such as Blender) or a game engine to visualise scientific data as opposed to specialist…
Toby Jake IB
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3
votes
0 answers

Is there a library which allows for converting 4D implicit surfaces to simplexes?

I have a 4D surface in the form of the spin quadric. I would like to display this surface onto the screen. One of the method which I would like to use to present surface onto the screen is projection. I would like to perform 4D->3D and then 3D->2D…
Rafał Augustyniak
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2
votes
2 answers

What's the role of visualization?

I'm just starting at scientific computing and I'm seeing that results can be generated merely by plotting the variables. Of course more variables lead to more axes/dimensions so e.g. a three variable system could be or would need to be modeled as a…
mavavilj
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