# \#contouring

**URL:** https://discourse.julialang.org/tag/contouring/1467.md

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## [How to get rid of noise in phase isosurface plots? Very short MWE included](https://discourse.julialang.org/t/how-to-get-rid-of-noise-in-phase-isosurface-plots-very-short-mwe-included/130890)

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**Author:** [@Deceneu](https://discourse.julialang.org/u/Deceneu)\
**Replies:** 5\
**Last updated:** [July 21, 2025, 4:24pm UTC](https://discourse.julialang.org/t/how-to-get-rid-of-noise-in-phase-isosurface-plots-very-short-mwe-included/130890 "2025-07-21T16:24:06Z")

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To keep it brief, I want to plot complex phase (angle) of a complex field. It seemed like Makie.jl’s contour or volume, should do the trick, but I get very noisy results for some reason? using GLMakie ph = \[(r = hypot(…

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## [Visualizing Electric Equipotentials](https://discourse.julialang.org/t/visualizing-electric-equipotentials/123023)

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**Author:** [@NonDairyNeutrino](https://discourse.julialang.org/u/NonDairyNeutrino)\
**Replies:** 0\
**Last updated:** [November 24, 2024, 7:29pm UTC](https://discourse.julialang.org/t/visualizing-electric-equipotentials/123023 "2024-11-24T19:29:21Z")

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Hey all, not a question this time, but rather I just wanted to share something I whipped up a little bit ago for my class on introductory electromagnetism. Basically, it’s a drop-in way to visualize the contour lines of…

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## [Number contours in PlotlyJS.contour](https://discourse.julialang.org/t/number-contours-in-plotlyjs-contour/122360)

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**Author:** [@miguelborrero](https://discourse.julialang.org/u/miguelborrero)\
**Replies:** 2\
**Last updated:** [November 7, 2024, 12:28am UTC](https://discourse.julialang.org/t/number-contours-in-plotlyjs-contour/122360 "2024-11-07T00:28:21Z")

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Hi there, I would like to produce a contour plot of a quadratic function and I found a nice way to do so with PlotlyJS.contour but I am not able to customize the number of contours. It seems like the documentation gives …

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## [Problem with contour plots in PythonPlot.jl](https://discourse.julialang.org/t/problem-with-contour-plots-in-pythonplot-jl/118435)

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**Author:** [@Sh\_166](https://discourse.julialang.org/u/Sh_166)\
**Replies:** 2\
**Last updated:** [August 22, 2024, 1:01am UTC](https://discourse.julialang.org/t/problem-with-contour-plots-in-pythonplot-jl/118435 "2024-08-22T01:01:33Z")

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With reference to my earlier post here, I have stumbled upon a bad issue. As in the earlier post, my code is as follows: using PythonPlot, LaTeXStrings, Measures, PlotThemes f(X, Y) = (100/(3\*s\*k^2))\*(((1-(X/Y)^2)^3))…

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## [Set a minimum level in contour plots](https://discourse.julialang.org/t/set-a-minimum-level-in-contour-plots/117907)

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**Author:** [@Sh\_166](https://discourse.julialang.org/u/Sh_166)\
**Replies:** 9\
**Last updated:** [August 7, 2024, 11:42am UTC](https://discourse.julialang.org/t/set-a-minimum-level-in-contour-plots/117907 "2024-08-07T11:42:15Z")

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I want to make a contour plot but I only want specific contours - or levels above a certain range. MWE: Pkg.add("Symbolics") Pkg.add("Plots") Pkg.add("LaTeXStrings") Pkg.add("Measures") Pkg.add("PlotThemes") using Sym…

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## [Multiple colobars](https://discourse.julialang.org/t/multiple-colobars/116970)

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**Author:** [@ArneSpang](https://discourse.julialang.org/u/ArneSpang)\
**Replies:** 8\
**Last updated:** [July 15, 2024, 10:15am UTC](https://discourse.julialang.org/t/multiple-colobars/116970 "2024-07-15T10:15:53Z")

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I am trying to make a plot with a heatmap in the background and contour plot of a different field on top. I could steal some ideas from this thread (Overlay a contour over a heatmap - #8 by lazarusA) and I get as far as …

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## [Overlaying contour lines for a specific value](https://discourse.julialang.org/t/overlaying-contour-lines-for-a-specific-value/111729)

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**Author:** [@dharmik](https://discourse.julialang.org/u/dharmik)\
**Replies:** 0\
**Last updated:** [March 17, 2024, 5:24pm UTC](https://discourse.julialang.org/t/overlaying-contour-lines-for-a-specific-value/111729 "2024-03-17T17:24:37Z")

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Hi! I created a scatter plot representing a ‘matrix’ of values and coloured it in using heatmap. I want to overlay a contour line on it for a specific value in this matrix but I can’t figure out how – any help would be g…

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## [Makie Contourf Giving Incorrect Whitespace in Contours](https://discourse.julialang.org/t/makie-contourf-giving-incorrect-whitespace-in-contours/111222)

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**Author:** [@TI36XPro](https://discourse.julialang.org/u/TI36XPro)\
**Replies:** 9\
**Last updated:** [March 10, 2024, 4:51pm UTC](https://discourse.julialang.org/t/makie-contourf-giving-incorrect-whitespace-in-contours/111222 "2024-03-10T16:51:55Z")

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Hello, I am trying to plot the initial condition of some simulations I am running. The simulation is two-dimensional and the initial condition is composed of some hyperbolic tangents. The issue is that when I plot this…

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## [Makie: open-ended contouring levels for contourf?](https://discourse.julialang.org/t/makie-open-ended-contouring-levels-for-contourf/106411)

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**Author:** [@ryofurue](https://discourse.julialang.org/u/ryofurue)\
**Replies:** 2\
**Last updated:** [November 23, 2023, 3:03am UTC](https://discourse.julialang.org/t/makie-open-ended-contouring-levels-for-contourf/106411 "2023-11-23T03:03:19Z")

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This thread discusses how to limit the contouring values. My question is a followup on that: How to paint all values above and below the limits and coordinate with the colorbar? The first image below is what I need and …