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Julius Muschaweck


JMO GmbH

Last seen: 2 jours il y a |  Actif depuis 2021

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I'm a freelance physicist, specializing in illumination optics. I am an experienced optical design expert, and I teach courses on illumination optics. For more: https://www.jmoptics.de

Programming Languages:
C++, MATLAB, Visual Basic
Spoken Languages:
English, German

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  • Personal Best Downloads Level 1
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  • GitHub Submissions Level 1
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JMO_Spectrum
Create, add, multiply spectrum arrays, compute color coordinates, CRI and much more. Download 2.2 from GitHub, FileExchange fail...

27 jours il y a | 5 téléchargements |

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Is it possible to just set the lower limit of the y-axis?
Two related ways I'm aware of (besides computing the max, which may be tedious with multiple plotted lines). xx = linspace(0,2*...

7 mois il y a | 1

| A accepté

Réponse apportée
Matlab display images oriented by 180.
Here: https://magnushoff.com/articles/jpeg-orientation/ is a nice and comprehensive explanation of the orientation tag values. I...

environ 2 ans il y a | 1

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How to compute uv coordinates for an arbitrary quad?
With A == [Ax, Ay], etc, and a point P == [Px,Py] for certain u,v, the first step is indeed to subtract A from B, C, D and P, ef...

plus de 2 ans il y a | 0

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Unrecognized function or variable "Run Python script file from MATLAB"
In my Matlab 2021a, I get the same error message. In the online documentation, it says "Introduced in R2021b". It seems you're...

presque 3 ans il y a | 0

| A accepté

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What should be the distance between the two cameras?
With a stereo vision camera pair, intended to create pairs of images for 3D vision, the key quantity is the "stereo angle": The ...

environ 3 ans il y a | 1

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Extracting positive and negative element of a matrix?
Use logical indexing: A = rand(10,10, 10) - 0.5; % contains random numbers in [-0.5, 0.5] B = zeros(10, 10, 10); % prealloca...

environ 3 ans il y a | 0

| A accepté

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AUC between different size curves
I would use interp1 to interpolate both functions so they have the same high resolution x support. You can easily replace the 0....

environ 3 ans il y a | 0

| A accepté

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angular data spline interpolation
Your x has five values, your y has seven values. This is a mismatch. I think you should use y = [0 1 0 -1 0; 1 0 -...

plus de 3 ans il y a | 0

| A accepté

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Using fprintf to save a matrix changes the order of my matrix
Your matrix does not change. You are outputting the values in your matrix, six numbers per line, as it is stored internally. And...

plus de 3 ans il y a | 0

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Extract variables from a text data and add them to an array to plot a graph
Inspired by https://uk.mathworks.com/matlabcentral/fileexchange/17177-ini2struct Your example input is attached as SomeNameValu...

plus de 3 ans il y a | 0

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Extract data between thresholds
I believe logical indexing and the diff function are what you need. % create and plot something like your data x = 0:300; % so...

plus de 3 ans il y a | 0

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Importing 3 spectrum data, plot representative spectrum for each sample all in same figure
It's hard to reproduce what you did without the jpeg files. But, maybe hold on is what you need: figure(); plot([1 2],[1 2])...

plus de 3 ans il y a | 0

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clear a MATLAB function after an episode
Assuming your function has the name f, you can use clear f; to clear persistent variables within f. Like here: function f() ...

plus de 3 ans il y a | 0

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How to add a little white space around the figures by using "print" command?
A simple plot as an example: figure() plot([1 2], [1 2]); set(gcf,'position',[400, 200, 560, 315],'PaperOrientation', 'landsc...

plus de 3 ans il y a | 0

| A accepté

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Finding position of value in an array
clear all; close all; clc; y = [-3.2628 -2.4774 -1.6920 -0.9066 -0.1212 0.6642 1.4496 2.2350 3.0204]; x=-2...

plus de 3 ans il y a | 1

Réponse apportée
Creating a function with equation as an input
Your "equation" seems to be a function depending on p, p1, q, q1. I would use an anonymous function to model this behavior. An...

plus de 3 ans il y a | 0