How to check if a point lies in the sector of a circle?

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Ananya Malik 2017-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/361671-how-to-check-if-a-point-lies-in-the-sector-of-a-circle

评论： Aida Jones 2018-7-6

采纳的回答： KSSV

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I have a sector defined by the following code.

x0=12;
y0=13;
theta =30;
r=3
a1 = 2*pi*rand;  % A random direction
  a2 = a1 + theta;
   t = linspace(a1,a2);
   x = x0 + r*cos(t);
   y = y0 + r*sin(t);
   plot([x0,x,x0],[y0,y,y0],'k-')

I want to check if a point, say [12.5 11.5] lies within the sector defined. Thanks in advance.

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Aida Jones 2018-7-6

Can you please share the solution. I am also looking for it. Thanks

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KSSV 2017-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/361671-how-to-check-if-a-point-lies-in-the-sector-of-a-circle#answer_286138

YOu should be having a set of points for sector and the points for circle. Use inpolygon to know whether these points lie inside or outside the given circle. Read about inpolygon.

https://in.mathworks.com/help/matlab/ref/inpolygon.html

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Ananya Malik 2017-10-17

Thanks a lot. I got it (y).

KSSV 2017-10-17

Thanks is accepting the answer.....;)

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