Connecting points in a scatter plot and measuring the angle

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Zo 2019-3-4

评论： Zo 2019-3-6

Good afternoon,

the attached image is what is obtained when i ran this progam.

How do i connect the points and find the angle between them

thank you.

I = imread ('MR.png')

imshow (I)

disp('Click the mouse wherever in the figure; press ENTER when finished.');

mousePointCoords = ginput;

% plot the mouse point coordinates on the figure

plot(mousePointCoords(:,1), mousePointCoords(:,2),'b.','MarkerSize',8);

KSSV 2019-3-5

编辑：KSSV 2019-3-5

For points (x1,y1) and (x2,y2) use atan2(y2-y1,x2-x1) to get angle.

Use plot to plot them as a line.

Zo 2019-3-6

thank you very much!!

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