I’ve a x and y. Both are flattened 2D arrays. I’ve two similar arrays, one for determining the colour of datapoint, another for determining detection method (“transit” or “radial”), which is used for determining the marker shape. Since there can be only one type of marker i…
Tag: colors
How to dynamically change color of selected category using dropdown box?
I am working on an app that takes in 2 inputs to update a scatterplot displaying the results of a cluster analysis. The first input filters the points on the graph through a time range slider. The second input is a dropdown box that is intended to highlight the color of a category of interest on the graph. Th…
using PIL to draw equal lines
what I’m trying to do is to draw horizontal lines in PIL of equal size. but my problem is that when I’m trying to fill the image it isn’t full. This is what I’m getting when it should be fully equal. There shouldn’t be any white. It also should work with more or less colors Code …
python – check presence of predefined color ranges in image
I would need to verify if and how much of certain predefined color ranges are present in a image file. each color range is defined by 6 variables and a counter in a colorRange class: The image can either be a file, or loaded from the camera. Following code loads the image from the camera buffer: what I would …
Plotly: How to manually assign bar colors to categorical lables in go.bar()
I have a bar plot, with three bars that I am constructing from a dictionary. I am trying to map the individual bars to specific colors, based on the barname, not the value of the bar. I have been trying to find an answer for this for quite some time but am only finding answers related to mapping colors to
How to extend the color palette in matplotlib?
I coded the following function: And then the for-loop: As the for loop iterates over num_columns which has 40 variables, the standard palette only offers 10 colors. However, I want to have every variable its own color. Is there a way to code it also being flexible when it comes to the number of variables? Ans…
Can RGB and RGBA be converted to each other?
I have a RGB image, and I want to convert it to RGBA to get alpha channels. It’s likely to convert RGB to HSV to get V channel. but now i want to get Alpha channel from RGBA. Can RGB and RGBA be converted to each other? Answer RGB represented in RBGA is just the same RGB values with A=max.
Tkinter: Color Chooser on MacOS
The Python Tkinter color chooser does not work in Python Version 3.8.5 on Mac. Whenever I type in colorchooser.askcolor(), It always outputs Traceback (most recent call last): File “<pyshell#5>”, line 1, in <module> colorchooser.askcolor() NameError: name ‘colorchooser’ is …
Control the facecolor of histograms
In the following histogram, I would like to set two different colors for the bars of the histogram. There is a precedent question (this link), but the solution sets the bars’ colors in a range, e.g., bars 0 to 3 of one color. This is a different problem since I would like to differentiate two zones in t…
Python Excel styling using Pandas Library
I am coding a school project rn, where I have to analyse stocks and predict them. So now my problem is the code is finished, but I want to add colours in my Excel file. I am using the following libraries: requests bs4 pandas datetime So I looked up the whole Internet and found nothing helpful. This is my code