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wei zhang


USTC

11 total contributions since 2016

PHD candidate in life science department

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Question


How to rotate 3d graph freely by x or y axis?
Hi, I am trying to view some 3d geometric surface file. I found a problem that I can't rotate the graph total freely. For exa...

1 month ago | 2 answers | 0

2

answers

Question


How to change the Matlab panel color?
I found the color setting for editor and command line in the preference. But as for the background of panel of tools(file, varia...

2 months ago | 1 answer | 0

1

answer

Question


Why is vectorization faster than the parallel computing?
I am trying to speed my code, which processing some big geometry surface. From scanning on the website, I found 2 way to optimiz...

3 months ago | 1 answer | 0

1

answer

Question


How to cite the row of the matrix by vectorization?
Hi, I have a problem in speeding my code. In my code, there is a step as below, a=repmat(1:6,3,1)'; index=[1:3;2:4]; res...

3 months ago | 1 answer | 0

1

answer

Question


How to get which part is on the direction of a ray on 2d image?
Hi, I have several small parts in the binary image. Besides, I define a ray based on two points. I want to get which small par...

6 months ago | 0 answers | 0

0

answers

Question


How to remove small connected parts in the image without smoothing the others?
Hi, I would like to remove the "triangle protuberance" in the belowing image, but I don't want to change the other part of the...

6 months ago | 1 answer | 0

1

answer

Question


How to check a triangle surface mesh is closed?
Hi, I would like to check if a surface triangle mesh is closed or not? "Close" means like the surf of a ball, as "not close" me...

6 months ago | 1 answer | 0

1

answer

Question


Problem of using "assignin" during figure callbacks
Hi every member, Overall, I want to get a output from a figure callback after the figure closed. I am doing it by using "assi...

6 months ago | 2 answers | 0

2

answers

Question


How to make a "local global " variable?
Hello, I would like to share some variables among some functions. It is inconvenience to make them all as arguments, because th...

7 months ago | 1 answer | 0

1

answer

Question


Problem with splitting taskbar icon of two Matlab process.
My pc system is win7. My Matlab version is 2015b. For many times, I have to launch two Matlab process simultaneously. When I min...

2 years ago | 0 answers | 0

0

answers

Question


Error using fmincon with nested function.
First I have a nested function test1 calling test0 as described following, function y = test0(x) y=x^2 end fun...

3 years ago | 1 answer | 0

1

answer