Drawing and erasing lines
I nees to draw several lines, one after one. I need, before drawn one, erasing the old one. For exmple weahave two pointe and a line between. With mouse one of these ponists is chandeg and I need a...
View ArticleFigureCanvasTkAgg for tensorflow
Is it possible to use the pixels on a FigureCanvasTkAgg canvas as input for a tensorflow neural network? 1 post - 1 participant Read full topic
View ArticleErase/delete lines from a plot
I have a software that draws, sequentially, Bezier curves, in a graph, as the coordinates of the vertices are modified I need that before drawing a new line, the last line drawn is erased, before...
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Histogram width problem
when having a bin with zero count, the width of whole histogram changes and looks bad, like here in p1, p18 and p24: I tried rwidth but doesn’t solve it. any ideas? 2 posts - 2 participants Read full...
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Home page infrastructure tour
Hi folks! I want to commend whoever worked on the matplotlib.org landing page, for it is absolutely gorgeous! I want to steal basically all of it for the napari.org home page, but I’m finding it hard...
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Export png file with line width of 1 pixel
Hi, I want to export .png file that contains a line with a width of one pixel. The best I could come up with so far is: import matplotlib.pyplot as plt import numpy as np fig = plt.figure(figsize=(3,...
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Can't make a line non-transparent
Hi, I’m using the LineCollection object to make the line multicolored. But as you can see, for some reason it’s not fully opaque (both parts of the line are visible at a point of intersection). I set...
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Dicom Image Slices Viewer
Hello, I’m trying to use your code for Image Slices Viewer in Python to adapt the code for Dicom images. The result that I obtain running the code is wrong, I should watch a medical image and have the...
View ArticlePasting a filename into save gun
(another topic is why I must do this sometimes in my loops, but not always, but) When some of my plots get particularly complicated, savefig balks, so I do a try: except: plt.show() In the gui, I can...
View ArticleUnderflow encountered in multiply while running streamplot()
Hello! I am trying to plot the streamlines around an airfoil using streamplot function as so plt.streamplot(XX, YY, Vx, Vy). However I am getting the error: Traceback (most recent call last): File...
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How to avoid line crossing the markers
Hi everybody! I would like to replicate the plot below: I tried with something like: plt.plot(x, y, color=‘red’,fillstyle=‘none’, marker=“*”,markersize=10), but the problem is that the line crosses...
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Voronoi Drawings on PNG
I am working on a project where I display a full world map of the Foxhole game. The developers provide through their API the requirements to build a Voronoi diagram. Through their API they provide...
View ArticleCoastlines and States won't plot
Attempting to plot some meteorological data. Plot the data and then add states and coastlines. I’ve tried adjusting zorder but states and coastlines won’t show up. Here’s the matplotlib portion of the...
View ArticleCreate 2d heatmap from set of 3d points
So let’s say we have a set of 3d points, where the three dimensions represent (x,y,value) Does matplotlib have a way to interpolate these points to make a realistic heatmap. So e.g. if for all i=0 to...
View ArticleUsing PySide2 on Raspberry with matplotlib fails
If I try to from matplotlib.backends.backend_qtagg import FigureCanvasQTAgg I get a failure of import not found. No module named 'matplotlib.backends.backend_qtagg I am using Python3 OS Buster. Any...
View ArticleEmbed texts and autotexts
I’m trying to move some matplotlib graphs to streamlit but having a problem with the autotext and text lists that I’ve used to adjust labels. I have created a function within which the plot is created...
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Cmap.set_over and set_under not working in newer python environments
This code is adapted from the contourf demo: import matplotlib.pyplot as plt import numpy as np delta = 0.025 x = y = np.arange(-3.0, 3.01, delta) X, Y = np.meshgrid(x, y) Z1 = np.exp(-X**2 - Y**2) Z2...
View ArticleLicense for inclusion of MPL example code & documentation
I came across a project that happens to include the example code for an annotated heatmap (near) verbatim from the Matplotlib gallery: Creating annotated heatmaps — Matplotlib 3.7.2 documentation The...
View ArticleScientific way of generating color cycles
Since the introduction of ‘viridis’ as a default colormap and a marvelous talk about its development, discussions with any collaborators have been greatly streamlined: use this colormap instead of...
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3D Polar Plot for well deviation plots
Hello, is there a way to get a 3D polar plot as shown on the left side of the picture with a “round” coordinate system? I found the examples for 3D polar plots but would like to have this “round”...
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