isosurface | Isosurface extraction using Marching Cubes and pure WebGL | Graphics library
kandi X-RAY | isosurface Summary
kandi X-RAY | isosurface Summary
Isosurface extraction using the Marching Cubes algorithm. Uses only pure WebGL. Requires glMatrix and dat.gui. (C) 2014 David Lettier lettier.com.
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Top functions reviewed by kandi - BETA
- Initialize buffers
- Draw animation frame
- Generates a compass point .
- Start the WebGL shader
- draws the triangle .
- Get a shader program
- init shaders
- Initialize WebGL context
- Injects the point of a surface .
- show toolbox
isosurface Key Features
isosurface Examples and Code Snippets
Community Discussions
Trending Discussions on isosurface
QUESTION
I am having a problem with regards preparing an array for use in a pcolormesh plot. Currently I am implementing a decision function to a combination of x and y arrays to produce z, which is kind of a isosurface value (in a way). the code goes like,
...ANSWER
Answered 2021-Nov-18 at 11:45You can just use boolean indexing:
QUESTION
I have a website where I document a list of installed pythonic libraries.
For each library, I want to have available:
- The name of the library (obviously)
- A link to the documentation for the library (because documentation is useful)
- A brief description of the library (so people can quickly see what the library does)
- The currently installed version (to stop people asking me "Are you using version x.y?")
My current solution is to use the name as the text of a link, href
'd to its documentation, and accept that the version & description are supplementary information, and can be made available to the user using a tool-tip - so they can sit in a title
attribute
Example:
...ANSWER
Answered 2021-Sep-08 at 08:25Use focus-within
rather than focus
QUESTION
Anyone can suggest the equivalent function of MATLAB's "isosurface" function in python/numpy. The MATLAB isosurface returns the faces and vertices. I need the faces and vertices to create .stl files. MATLAB isosurface function looks like this:
...ANSWER
Answered 2021-Aug-20 at 12:00Although it wasn't among your target libraries, PyVista built on VTK can help you do this easily. Since you seemed receptive of a PyVista-based solution in comments, here's how you'd do it:
- define a mesh, generally as a
StructuredGrid
for your kind of data, although the equidistant grid in your example could even work with aUniformGrid
, - compute its isosurfaces with a
contour
filter, - save as an
.stl
file using thesave
method of the grid containing the isosurfaces.
QUESTION
I have this below which is working but I want to plot the moving average also inside the candlestick chart at col=1 and row=1
...ANSWER
Answered 2021-Aug-11 at 13:23In this case, adding the moving average as a stand-alone graph is no problem; the RSI indicator requires a new library, so we have replaced it with the closing price, so please correct that item. This graph does not have enough vertical size, so we have added the height of the graph.
QUESTION
I want to create a nice graph in python, so I used plotly to create a graph, but I get an error.
Maybe because I'm new to plotly
, I don't understand the error in this code.
The only thing I can tell is that my code is wrong.
I want to display multiple graphs in plotly.
ANSWER
Answered 2021-Jun-07 at 03:56According to the documentation on adding traces to subplots, the add_trace
and append_trace
methods only take accept plotly graph_objects
. Therefore, your code block:
QUESTION
My goal is to display a line graph and an average line on the same plot. This is for a Django project that displays a list of scores from a database. This database is pretty big (over 100k). The app shows an average line for each page (page only containing 20 results). I had this working using Scatter objects instead of Figure objects.
...ANSWER
Answered 2021-Jan-07 at 18:02If I am correctly understanding what you want to accomplish, it looks like you can pass another trace instance such as Scatter(...)
to the data
property, and it will display both traces with the zoom functionality disabled.
QUESTION
I am trying to define a function in 3D cylindrical coorindates in Matlab, and then to convert it to 3D cartesian for plotting purposes.
For example, if my function depends only on the radial coordinate r (let's say linearly for simplicity), I can plot a 3D isosurface at the value f = 70 like the following:
...ANSWER
Answered 2020-Dec-04 at 13:08It is a rather dificult task to represent 4D data. You mention you want to visualize 4D data with the isosurface function. Another alternative is to represent the 4th variable using a color scale, with the slice function.
The problem with these functions is that they work for the cartesian coordinates [X,Y,Z]. What you have to do is to interpolate your data to your domain in cartesian coordinates, before using the functions to represent these 4D data, as in here or here.
Essentially, what you end up with is:
QUESTION
I'd like to plot a convergence process of the MLE
algorithm with the plotly
library.
Requirements:
- the points have to be colored colored in the colors of the clusters, and change accordingly each iteration
- the centroids of the clusters should be plotted on each iteration.
A plot of a single iteration may be produced by Code 1
, with the desired output shown in Figure 1
:
Code 1
...ANSWER
Answered 2020-Aug-10 at 02:45You can add two traces per frame but apparently you need to define these two traces in the first data
too. I added again the first two traces as a frame in order to have them visible in subsequent play. Here the full code
QUESTION
I am attempting to combine a 3D surface plot as shown here and a 3D isosurface plot as shown here in Plotly.
I do not wish to combine them through subplots. The goal is to be able to plot topography with a surface plot and another variable through an isosurface plot, but have them on the same figure.
Is there any way to do this with Plotly?
...ANSWER
Answered 2020-Aug-08 at 21:24Although this isn't clearly documented anywhere, the easiest way to do this is simply to provide both plots in the data array provided to Plotly.newPlot
QUESTION
I am trying to plot a 3-subplot PlotLy graph. From top to bottom: Candlesticks, normal line graph, normal line graph.
Here is my code:
...ANSWER
Answered 2020-May-18 at 13:20The problem is how your adding the first trace. You are using:
fig.add_trace(go.Figure( data = [go.Candlestick( x = df.index,...
but it should be:
fig.add_trace(go.Candlestick(x = df.index,...
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