MATLAB: Point contained in the convex hull of a quadrilateral

convex hullquadrilateral

Hellooo,

how can i examine if a point in the 2D-Plane is in the convex hull of a quadriliteral, given from 4 points??

I know there is the function "convhull" but this only creates my konvex hull.

Greetz, John

Best Answer

You can use the inpolygon() function.

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MATLAB: How to use the inpolygon function ?

X1=[0,0], X2=[2,0], X3=[2,2],X4=[0,2]
X=[X1(1),X2(1),X3(1),X4(1)]
Y=[X1(2),X2(2),X3(2),X4(2)]
inpolygon(1,1,X,Y) % returns 1 because the point (1,1) is inside the polygon
inpolygon(10,1,X,Y)% %returns 0 because the point (10,1) is outside the polygon

MATLAB: Point or multiple points is/are in a triangle?

tf = inpolygon(Points(:,1),Points(:,2),Triangle(:,1),Triangle(:,2))

Best Answer

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MATLAB: How to use the inpolygon function ?

MATLAB: Point or multiple points is/are in a triangle?

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