Sum overlapping region using surf

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Ricardo Duarte
Ricardo Duarte 2021-1-26
评论： Ricardo Duarte 2021-1-27
Dear all,
I'm new in matlab and i'm doing some difficult stuff I guess...
I have 9 matrix (x1,y1,tl1, x2,y2,tl2 and x3,y3,tl3).
(x1,y1,tl1) correspond to the x and y coordinates of the transmission1
(x2,y2,tl2) correspond to the x and y coordinates of the transmission2
(x3,y3,tl3) correspond to the x and y coordinates of the transmission3
The dimension of x's is=20x19
The dimension of y's is=20x19
The dimension of tl's is=20x19
I'm plotting this three groups of matrixes using surf(x1,y,1,tl1) and surf(x2,y2,tl2) and surf(x3,y3,tl3) which gives me three overlapping circles.
First problem:
I need to sum the intersection/the overlapping region between these three plots
Second problem:
I will need to do the same for a n number circles (xn,yn,tln)
Thanks in advance for your help.
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Walter Roberson
Walter Roberson 2021-1-27
Ran in:
That's not a circle. Do you need the data to be projected into 2D and intersection done for that, or should intersection be done in 3D?
S = load('x_y_tl.mat')
S = struct with fields:
tl1: [20×19 double] tl2: [20×19 double] x1: [20×19 double] x2: [20×19 double] y1: [20×19 double] y2: [20×19 double]
surf(S.x1, 'edgecolor', 'none')
surf(S.y1, 'edgecolor', 'none')
surf(S.tl1, 'edgecolor', 'none')
surf(S.x1, S.y1, S.tl1, 'edgecolor', 'none')
Ricardo Duarte
Ricardo Duarte 2021-1-27
Hello Walter Roberson,
In fact the x and y are the matricis containing the coordinates and the tl contains de information regarding the transmission loss respecting that coordinates.
Taking into account the images you sent what I need is something like the last one (surf(x1,y1,tl1)). However, I want to sum the tl1 and tl2 in the region that they intersect in their x,y axes.
Thanks once again.

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