Johannes Korsawe

Last seen: 10 jours il y a | Actif depuis 2012

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I am a mathematician at the Volkswagen AG and working with MATLAB since ~1998. Professional Interests: fem, geometrical computations

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Change Mouse/ Cursor appearance in ginput
This can be done very easily: Use a local copy of Mathworks' original function ginput.m which has precedence in your Matlab pat...

plus d'un an il y a | 0

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How to fix 'Error Adams(server) simulation startup. AEI_Initialize: Error in initialization.'
I ran into the same error. My problem had been deprecated ADAMS model/maneuvre files. I used ADAMS model/maneuvre files from BEF...

environ 2 ans il y a | 0

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Error in Cosimulation Matlab- Adams in the S-function
I ran into the same error. My problem had been deprecated ADAMS model/maneuvre files. I used ADAMS model/maneuvre files from BEF...

environ 2 ans il y a | 0

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How to create a triangulation from a list of edges and list of nodes?
allCyclesWithLengthThree = allcycles(g, 'MaxCycleLength', 3); connectivityList = cell2mat(allCyclesWithLengthThree);

environ 2 ans il y a | 0

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writecell does not work properly after invoking and closing actxserver
Hi folks, i have some strange behavior after switching to office 365. My former workflow, which consists of a huge number of a...

plus de 2 ans il y a | 1 réponse | 0

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Find values in list that appear exactly once
Hi there, assume, i have a list of integer values. I need a fast way to find those values in the list, that appear exactly on...

plus de 7 ans il y a | 1 réponse | 0

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How to add two sparse matrices or ndSparse matrices in MATLAB?
help sparse fourth and fifth argument of sparse prescribe the dimensions. If you know them from the beginning of ayour code, ...

environ 8 ans il y a | 0

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Neighbors of a pixel
Let A be your matrix. % use the help of a bigger matrix B=nan(size(A)+2); B(2:end-1,2:end-1)=A; % pre-define memor...

environ 8 ans il y a | 3

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How to view Matlab standalone application errors?
Some thoughts: - use the MATLAB var "isdeployed" to insert some debug infos for deployed applications that do not bother you ...

environ 8 ans il y a | 0

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volume or point detection in a non-convex polyhedron
The submission intriangulation may serve your needs. <https://www.mathworks.com/matlabcentral/fileexchange/43381-intriangulat...

environ 8 ans il y a | 1

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Matlab GUIDE: how to deal with multiple overlapping panels
It IS possible to do it via on/off. But then you will have to place all panels above each other which makes it not so nice to e...

plus de 8 ans il y a | 0

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Why is the rectangle command so much slower on the new graphics engine?
Hi folks, i am just comparing the performance in plotting a lot of filled circles via the rectangle command. My benchmark is ...

plus de 8 ans il y a | 1 réponse | 0

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Determining toolbox dependency of a series of scripts
Jakob, i am also struggling with that functionality. The short answer is: There is no functional command in Matlab that wi...

presque 9 ans il y a | 1

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Alphashape calculated with points and triangles
Hi there, another alphaShape related question: If i do not only have a point cloud, but if i also have some triangulation of ...

environ 9 ans il y a | 1 réponse | 0

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Find midpoints of alphashape's defining spheres
Hi there, if i compute a 3d-alphashape on a pointcloud...is it possible to find the midpoints of those spheres, which are def...

environ 9 ans il y a | 1 réponse | 0

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Screen is flickering at Matlab startup for 2014b
Dear all, i had a change of my computing device three weeks ago and i was and am using Matlab R2014b on the new and old machi...

presque 10 ans il y a | 2 réponses | 0

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Output of REAL filled circle from figure
Dear all, my question refers to Matlab R2014b. (1) I want to plot a number of filled circles with varying diameters into ...

presque 10 ans il y a | 1 réponse | 0

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What handle graphics objects have an empty 'Children' property in MATLAB R2014b?
And how to make filled contours semi-transparent? Contour object can either be filled or not, but there is no such thing as Face...

presque 10 ans il y a | 2

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R2014b: How to make the filled areas in contourf semi-transparent?
(At least) in Release 2014b, the contourf - command returns a Contour object, which may be filled or not, but there is no such t...

presque 10 ans il y a | 1 réponse | 0

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Integrate angular velocity for Newton/Euler equations for single body under force load
Hi folks, i have the following task to solve: i want to calculate the point reaction forces of a body under arbitrary load of so...

presque 10 ans il y a | 1 réponse | 0

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Usings subs on matrices ?
C(C==exp1) = exp2; ??

environ 11 ans il y a | 0

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How to plot in GUI from obtained values?
Use the handles structure and the built-in function guidata: function xls_read_button_Callback(hObject, eventdata, ...

environ 11 ans il y a | 0

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inpolygon equivalent function in 3D?
Try intriangulation on the FEX. Regards, Johannes

environ 11 ans il y a | 0

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How to merge 2 different 3-D surface patch objects (Faces & Vertices) in 1 patch object with ONLY the outside surface (inside points removed)
Not an answer, but a comment. I also tried to solve this problem with several steps: 1. Determine the inside/outside poin...

environ 11 ans il y a | 0

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Determining if a point is inside an triangulated 3D closed surface
Use intriangulation from the FEX. Regards, Johannes

environ 11 ans il y a | 2

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How to find elements of a 3d matrix inside a volume
If your volume is tesselated with triangles and watertight, you might be able to use intriangulation from the FEX. Regards, ...

environ 11 ans il y a | 0

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Whether a given point is inside or outside a non-convex 3D tessellated (triangular mesh/ STL file) object?
If the tesselated surface is watertight and consists of triangles only, you can use intriangulation from the FEX. Regards, J...

environ 11 ans il y a | 0

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Get a smothed outer surface from a 3D set of points with points that are inside the wanted surface
Reza, you gave the answer yourself. The first step is to get rid of those points that are inside the volume. There is also a ...

environ 11 ans il y a | 0

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Find out OS language via datestr command?
Hi folks, i wonder if the datestr command can help finding out the operating system's basic language. I can only test the ...

plus de 11 ans il y a | 3 réponses | 1

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