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Kurt


Last seen: 2 days 前 |  自 2022 起处于活动状态

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propagateOrbit function hangs for no obvious reason
This is an interim solution until Mathworks modifies the propagateOrbit function. This is based on the code previously mentioned...

3 months 前 | 0

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propagateOrbit function hangs for no obvious reason
When the propagateOrbit function is fed certain TLEs, it simply stalls instead of throwing an exception. Since the propagateOrb...

3 months 前 | 1 个回答 | 0

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How to propagate orbits on a non-rotating axesm globe
SOLUTION: In order to convert a TLE set to ephemeris data, you must first read a TLE file and perform several coordinate transf...

3 months 前 | 0

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How to propagate orbits on a non-rotating axesm globe
I used as my foundation the example found here: https://www.mathworks.com/help/map/plotting-a-3-d-dome-as-a-mesh-over-a-globe.h...

4 months 前 | 1 个回答 | 0

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How do I align two 3D curves that are displaced in time?
I have two 3D curves (trajectories) that are nearly identical. One curve is a subset of the other, that is, its end point coordi...

5 months 前 | 0 个回答 | 0

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How do you convert a surf object to an isosurface?
How to convert a regular surf surface (rectangular mesh) to a patch isosurface (triangular mesh)? I have seen how to go the o...

8 months 前 | 1 个回答 | 0

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Matlab function gui_mainfcn.m crashes on feval
I am trying to work with the GRIB1 file reader found at this address: https://www.mathworks.com/matlabcentral/fileexchange/5370...

9 months 前 | 1 个回答 | 0

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How to incorporate axesm-based maps in an app
I am interested in creating axesm-based maps: h = axesm('MapProjection','mercator') However, there appears to be no way to tie...

1 year 前 | 1 个回答 | 0

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How to overlay a UIAxes surface on a UIFigure 3D image
It appears you can't get there from here usining geo data. I found another solution using a mesh: https://www.mathworks.com/mat...

1 year 前 | 0

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Plot 3D Dome - no topo60c file available
I am using the example of how to plot a dome as a mesh over a globe, found here: https://www.mathworks.com/help/map/plotting-a-...

1 year 前 | 1 个回答 | 0

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How to overlay a UIAxes surface on a UIFigure 3D image
I have two components, a UIFigure globe and a UIAxes hemisphere created with surf(). I want to overlay the surf object on the gl...

1 year 前 | 1 个回答 | 0

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Upper limit on the number of UIAxes children allowed
I am plotting orbital data, using plot3 to progressively lengthen the orbital track of a spacecraft. plot3(earthMoon.UIAxes, x...

1 year 前 | 2 个回答 | 0

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How to draw 2d compass in 3d UIAxes
Is it possible to use the compass() function to draw a compass rose in a UIAxes object? I don't care about the function depicted...

1 year 前 | 1 个回答 | 0

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angle2dcm: How to reference direction cosine matrix output?
I have seen lots of discussion on how to call angle2dcm, but almost none on how to use it to transform the coordinates of an obj...

1 year 前 | 1 个回答 | 0

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App Designer: How to add components that are not listed in the library
The App Designer Component Library contains a limited number of components to drag and drop. There are many more components and ...

2 years 前 | 1 个回答 | 0

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Matlab return C call by reference
The solution was to first load my Dynamic Link Libraries (DLLs). Then the Matlab calls to my library functions look like this:...

2 years 前 | 0

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Matlab return C call by reference
I am using a compiled C DLL library to compute various astronomical functions, for example time since epoch and ra/dec to az/el ...

2 years 前 | 1 个回答 | 0

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Call parfeval using global variables?
Using a combination of spmd and spmdIndex (NOT labIndex, which is obsolete), I was able to achieve what I wanted: setting the DO...

2 years 前 | 0

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Call parfeval using global variables?
I am using parfeval() to do multithread logic. I have 16 cores. The documention mentions listing the calling parameters as argum...

2 years 前 | 2 个回答 | 0

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Click on row in TextArea?
The "compose" approach reduced the formatting from about 7 minutess to 10 seconds. Thanks! I solved the TextArea size issue by ...

2 years 前 | 0

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Click on row in TextArea?
I have a GUI that contains a TextArea. I read in a file that is 20,000 x 16 and convert each row to a string, so the resulting t...

2 years 前 | 2 个回答 | 0

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How to draw lines in UIFigure designed in App Designer that contains an image
I have seen many examples of how to draw a line in a plot; however, I am working with an App Designer object-oriented UIFigure. ...

2 years 前 | 1 个回答 | 0

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Observation: sortrows() blows up when attempting to sort empty cells
This is more of an observation than a question, but it took me two days to figure it out. I am pre-allocating space for an arra...

2 years 前 | 1 个回答 | 0

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How to do math using datetime objects including years
I want to compute the number of days, minutes and seconds since January 1st, 2000 (Julian days) up to a specific date such as Ju...

2 years 前 | 3 个回答 | 0

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How to initialize a table column to a character array?
I have a table "filetext" which is 19343x46. I want to append a colum on the right containing the character array 'MET'. In othe...

2 years 前 | 1 个回答 | 0

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GUI loses state when destroyed and recreated
Found the solution. Change the GUI callback function to read as follows: function GUIButtonGroupSelectionChanged(app, event) % ...

2 years 前 | 0

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GUI loses state when destroyed and recreated
This USED to work several days ago, but somehow I broke it. I have a GUI which I created in App Designer. The GUI is called fro...

2 years 前 | 1 个回答 | 0

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How to convert datetime to datestr including day of year
I can convert a date string to a datetime object using datetime(), and convert that object back to a string using datestr(). How...

2 years 前 | 1 个回答 | 0

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How do I add a draw rectangle function to an image app?
I used App Designer to create a frame containing an image. Now I want to draw a rectangle inside that image. None of the example...

2 years 前 | 1 个回答 | 0

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已回答
How do I use uiopen in a class method?
Solution found: I needed a callback function.

2 years 前 | 0

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