# Questions tagged [visualization]

Questions relating to graphing and displaying numerical data

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1 vote
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### How can I make the color range symmetric around zero in Paraview?

I often use diverging colormaps (like the Paraview default "cool-to-warm") with a color range that is symmetric around zero, e.g. to visualize areas of tensile (red) and compressive (blue) ...
• 21
1 vote
35 views

### Does loss landscape provide a means to compare optimization algorithms?

I'm comparing two optimization algorithms for deep neural networks. To that end, I train a network with the same data and starting rom the same initial weights using two different optimization ...
• 111
108 views

### Finding a best fit line for the upper bound on an $x$ vs $y$ relationship

I am trying to do linear regression on the following conceptualized problem. I have a set of data in pairs $(x, y)$. I know that $y$ is bounded by a linear function $f(x) = mx + c$. I want to estimate ...
• 123
700 views

### Rotate a 2D contour plot through 360 degrees to create 3D plot (Python, Mayavi/Matplotlib)

I have three 1D arrays, which represent radius, height, and an intensity measured at that point. I have plotted these to create a 2D contour map. A simple example of the way in which the data is ...
• 41
1 vote
34 views

### 3D web visualization with arbitrary cutting plane

How can I visualize 3D data volumes with arbitrary cutting plane on web pages? I could not find a library that allows so.
• 145
1 vote
100 views

### Scipy Find Peaks

I am trying to find the peaks. I have list x_period and y_power. I find the peaks from the ...
• 13
1 vote
44 views

482 views

### In practice, what are the most useful ways to visualize 2d fluid flow, to tell what is happening in the simulation? Esp for verification and debugging

My simulation creates a 2d grid of vectors and scalars (EDIT of velocity, depth etc), at 60 frames per second. Is it correct? It looks sort of right... but who knows? How can I tell what's happening - ...
• 364
1 vote
3k views

### Rescaling x-axis data in Paraview

I am working with VTK legacy files containing vector information. The files have incremental extension representing a file series as defined by this link. When applying the filter "Plot Selection ...
• 251
437 views

### 15 noded triangular elements in paraview

I am modelling a soil medium in plane strain and would like to determine if paraview supports the 15-noded triangular element as shown on this link. On the documentation I am only seeing elements up ...
• 251
1 vote
167 views

### VTK: Missing Streamlines due to error in Runge-Kutta method?

We are using Kitware VTK to visualize our models. When we display streamlines, it sometimes happens that a single streamline is left out. This can be especially seen when duplicating a model several ...
89 views

### Dynamic Analysis and Visualization of Laminate Mindlin Plate

I am trying to make the jump from a FEM plot of a static load applied to Mindlin laminate plate to a surface visualization of various Mode Shapes of the Laminate Plate. For that, I understand that the ...
459 views

### Alternatives to Mathematica

looking to introduce a mathematics program in my work, I would have 2 uses: In a classroom (high school level), providing good visualisation of physics ideas, and making my lecture more interactive. ...