How to specify 2-D coordinates of an object in matlab?

1. How do you set boundaries in Matlab?
2. How do you find the area of a polygon in Matlab?

How do you set boundaries in Matlab?

Compute a boundary around the points using the default shrink factor. k = boundary(x,y); hold on; plot(x(k),y(k)); Create a new boundary around the points using a shrink factor of 0.1. The result is a less compact boundary enveloping the points.

How do you find the area of a polygon in Matlab?

Description. a = polyarea( x , y ) returns the area of the 2-D polygon defined by the vertices in vectors x and y . If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y .