Interpolate positions between 2 matrix

Jose Martinez (view profile)

on 18 Feb 2019
Latest activity Commented on by Jose Martinez

on 19 Feb 2019

Akira Agata (view profile)

Hello,
If you see the picture below, I am representing dinamically the blue point with a matrix and imagesc function. What I would like to do is filling the gap bewteen points with more points, so the final graph woould look like a line.
An example how I am plotting the graph
% First point position in the matrix
0 0 0 1 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
% Next time period the matrix will have other values for the second "blue" point
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 1 0
% I would like to get automatically a matrix that interpolate between both "1" values and get something like below to draw a line,
0 0 0 1 0 0 0
0 0 0 0 1 0 0
0 0 0 0 1 0 0
0 0 0 0 0 1 0
I hope to make myself clear,

Akira Agata (view profile)

on 18 Feb 2019

% First point position in the matrix
M1 = [0 0 0 1 0 0 0;
0 0 0 0 0 0 0;
0 0 0 0 0 0 0;
0 0 0 0 0 0 0];
% Next time period the matrix will have other values for the second "blue" point
M2 = [0 0 0 0 0 0 0;
0 0 0 0 0 0 0;
0 0 0 0 0 0 0;
0 0 0 0 0 1 0];
[row,col] = find(M1 | M2);
row2 = (1:4)';
col2 = round(interp1(row,col,row2));
M3 = zeros(size(M1));
M3(sub2ind(size(M3),row2,col2)) = 1;
The result is:
>> M3
M3 =
0 0 0 1 0 0 0
0 0 0 0 1 0 0
0 0 0 0 1 0 0
0 0 0 0 0 1 0

Jose Martinez

Jose Martinez (view profile)

on 19 Feb 2019
Brilliant, I think the idea will work wit my project!
Thank you so much