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Remove polyshape boundary outliers



polyout = rmslivers(polyin,tol) returns a polyshape object made up of the boundaries of polyin with any outlier vertices removed. tol defines boundary outliers based on the ratio of relative distances between vertices.


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Remove an outlier boundary point from a polygon, eliminating the extraneous sliver or antenna effect.

polyin = polyshape([0 0 2 2 1.0001 1 0.9999],[2 0 0 2 2 10 2]);
xlim([-0.5 2.5])
ylim([-2 12])

polyout = rmslivers(polyin,0.001);
xlim([-0.5 2.5])
ylim([-2 12])

Input Arguments

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Input polyshape, specified as a scalar, vector, matrix, or multidimensional array.

Data Types: polyshape

Outlier tolerance, specified as a scalar. When the input polyshape is an array, rmslivers removes outliers from each element of the array according to tol.

Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

More About

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Outlier Tolerance

The outlier tolerance specifies the allowable ratio between the relative distances of vertices in a polygon region. For example, in the following figure, if abtol for a specified tolerance tol, then rmslivers does not remove the vertex v. If ab<tol, then rmslivers removes v, eliminating the sliver.

Triangular sliver in a polygon due to vertex v. The sliver is a right triangle with side lengths a and b.

Extended Capabilities

Version History

Introduced in R2017b

See Also