Question

Generate coordinates (3D), having the same contour as the initial circle but with a smaller size
Hi! Starting from nodes arranged as a circle in space (blue points), I must generate others having the same outline as the blue ...

10 months ago | 1 answer | 0

1

answer

Question

Find coordinates inside a matrix with specific conditions
I need to identify 3 nodes (the green ones, but it can also be the blue ones) within a matrix that generates a "circle" in space...

10 months ago | 1 answer | 0

1

answer

Question

Improving the interpolation of nodes arranged in a circle on a plane
I am using this code to improve the interpolation of nodes arranged in a circle on a plane. As input I have the nodes 'outermos...

10 months ago | 2 answers | 0

2

answers

Question

Determine the coordinates of the nodes forming the outermost circle
Hi! How can I extract only the coordinates of the nodes forming the outermost circle? The nodes are located on radius R = 4! no...

10 months ago | 3 answers | 0

3

answers

Question

Determining area considering nodes arranged in space in an almost circular shape
Hi. I have the attached nodes arranged in space. I would like to calculate the area having the nodes as boundaries. I'm trying ...

10 months ago | 1 answer | 0

1

answer

Question

Determining the coordinates of a node between two known nodes and knowing the distances between the known nodes
Hi! This may seem like a rather trivial question. Do you know how to determine the coordinates of a node C knowing node A, node ...

10 months ago | 3 answers | 0

3

answers

Question

find similar numbers within a matrix
Hi. I need to identify the position of a triplet of numbers (P) inside an array (M). P = [-3.4970900e+01 -2.0289890e+02 -1...

11 months ago | 5 answers | 0

5

answers

Question

convert a cell (Rx1 cell) to a vector (Rx1 double)
Hi. I want to convert the cell 'rows_check_n' into a vector of type double with the numbers inside the cell. I tried 'cell2mat'...

12 months ago | 2 answers | 0

2

answers

Question

identify rows with [] within a cell
Hi! Is there any way to identify rows with [] within a cell? Something that is analogous to 'find'. [rr,cc] = find(M(:,1) == []...

12 months ago | 1 answer | 0

1

answer

Question

create empty pie chart (or not generate the graph)
Hi! I would like to create empty pie chart (I know it is not very useful). Using 'pie' does not allow this. so I had thought o...

12 months ago | 1 answer | 0

1

answer

Question

use the if-else loop considering a variable 'char' in the workspace
Hi! I have an 'out' variable in the workspace that can be a number or a char. How can I use the if-else loop considering this va...

12 months ago | 1 answer | 0

1

answer

Question

error using the function 'splitapply'
Hi! I have a problem about using 'splitapply'. Using the matrix 'matrix_out_98' the code works, but using the matrix 'matrix_ou...

12 months ago | 1 answer | 0

1

answer

Question

increase the thickness + hide some lines generated in the pie chart
Hi! I generated this pie chart: load matrix_new.mat load color_matrix.mat % ========== labels = matrix_new(:,1); percentage...

1 year ago | 1 answer | 0

1

answer

Question

Merge multiple matrices with different columns into a single matrix
I would like to combine several matrices with different columns (cell_test(:,1)) into one matrix by adding 0's (or rather []) in...

1 year ago | 1 answer | 0

1

answer

Question

select rows based on the value of the last column of the matrix
I have a matrix 'A'. As can be seen in the figure (red rectangles), some rows have the first and second columns the same but not...

1 year ago | 2 answers | 0

2

answers

Question

rename txt file within a specific folder
I need to rename a specific txt file ('file_name') within a folder. How is this done? folder = dir('C:\...\...\...\*.txt'); % ...

1 year ago | 3 answers | 0

3

answers

Question

Transforming a row (inside a matrix) with equal numbers into a row with only one number
I have amatrix of the following type: in = [228 228 228 231 231 231 183 183 183 157 157 157 168 168 168]; I need to know i...

1 year ago | 1 answer | 0

1

answer

Question

Enlarge the size of the image inside the plotted figure
I have an image (defoult peppers). When I extract a portion of that picture, I display it "small". How can I keep the size of th...

1 year ago | 1 answer | 0

1

answer

Question

Merge 2 matrices "RxC uint8" into one matrix "RxCx2 uint8"
Hi! I have 2 matrices of the type "41x41 unit8", I should " combine" them in order to get "41x41x2 unit8". How can I do that?

1 year ago | 1 answer | 0

1

answer

Question

Repeat coordinates (arranged on the same y and different x) over different values of y
Hi! I need to achieve this by knowing the 'green' coordinates ("row_c") and the repeat intervals ("val"): I tried this way bu...

1 year ago | 2 answers | 0

2

answers

Question

Ordering a matrix as x increases and y increases
Hi. I need to remove repeating nodes inside the 'square' array (I need to get only unique rows without repetition). I tried wi...

1 year ago | 1 answer | 0

1

answer

Answered
identify a factor that links two equal matrices but positioned in different places on the same plane
Hi @Voss! I have a question for you, which was then the question of the post. Is there a way to transform RC_transl into RC_ma...

1 year ago | 0

Question

creation of a circular plane passing through three nodes and for central node
Hi. I would like to generate a circular plane from three nodes + center nodes. I'm using this code but I don't understand why a...

1 year ago | 1 answer | 0

1

answer

Question

Identify some nodes near a known node
Is there a way to identify the upper and lower nodes of this geometry by knowing a node? nodes = importdata("NODES.mat"); face...

1 year ago | 2 answers | 0

2

answers

Question

rotate by a certain angle a plane in space around a node P
HI! I have a plane normal to a node (point P) in the figure. line = importdata("line_G.mat"); plane = importdata("plane_G.mat"...

1 year ago | 1 answer | 0

1

answer

Question

rotate/translate/zoom the two simultaneously generated figures within subplot
Is there any way to rotate/translate/zoom the two simultaneously generated figures? nodes = importdata("NODES.mat"); faces = i...

1 year ago | 1 answer | 0

1

answer

Question

delete the top and bottom triangular faces of the 3D object
Hi! Is there a way to delete the top and bottom triangular faces of the tube? nodes = importdata("NODES.mat"); faces = importd...

1 year ago | 1 answer | 0

1

answer

Question

order the rows of the 3 matrices starting from the third coordinate of the point P
Hi! I have to order the rows of the 3 matrices starting from the third coordinate of the point P. A = [28.0445 -17.2717 83.972...

1 year ago | 2 answers | 0

2

answers

Question

identify the coordinates of a point P (1x3) in three distinct matrices
HI! I should identify an identical point P (1x3) within the 3 matrices and in the first 3 columns of these 3 matrices. For exa...

1 year ago | 1 answer | 0

1

answer

Question

identify a factor that links two equal matrices but positioned in different places on the same plane
I have two matrices ('RC_matlab' and 'RC_trasl') representing the same 2D coordinates of nodes on the same plane but at differen...

1 year ago | 2 answers | 0

2

answers