MATLAB Answers

Correctly plot the quiver on a figure

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sparsh garg
sparsh garg on 15 Sep 2021
Commented: sparsh garg on 15 Sep 2021
I am currently trying to project the point along the direction of the normals.However my current method tends to project them in a diagonal manner.
The original img
Now i use this code to ensure that my points are displayed in correct order(Note I can always do set(gca'YDir','reverse') )
plot(Fp(1,:),max(Fp(2,:))+1-Fp(2,:));
%plot(E_stroke(1,:),max(E_stroke(2,:))+1-E_stroke(2,:));
%plot(FP1(1,:),max(FP1(2,:))+1-FP1(2,:));
axis equal;
ax=gca;
h = findobj(gca,'Type','line');
x = h.XData;
y = h.YData;
Final_set_pts=[x;y];
After this when I plot the normals I get this figure,any idea what is happening here
  4 Comments
sparsh garg
sparsh garg on 15 Sep 2021
oh okay that is b'cause the edgepixel is a structure but when I upload it and send it to someone else,it comes out as a a simple matrix.
edge_norm is nothing but [edgees2.nx,edges2.ny] and edge_pos is [edges2.x,edges2.y];
Also how do we go about saving classdef objects in matlab so that when you send them as attachments,the end person recieves that object in the right format.
For example edges2.mat is a object which somehow got converted into a matrix.

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Answers (1)

KSSV
KSSV on 15 Sep 2021
Try changing (x,y) i.e. use (y,x) instead.
  1 Comment
sparsh garg
sparsh garg on 15 Sep 2021
hmmm i changed that but still no changes the plot tends to be the same as before.

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