Extract a subset of a pixel image on a linear network.
## S3 method for class 'linim' x[i, ...]
A pixel image on a linear network (object of class
Spatial window defining the subregion.
Either a spatial window (an object of class
This function is a method for the subset operator
pixel images on linear networks (objects of class
The pixel image
x will be restricted to the
domain specified by
i is a window (or a logical-valued pixel image)
x[i] is another pixel image of class
representing the restriction of
x to the spatial domain
i is a point pattern, then
x[i] is the vector of
pixel values of
x at the locations specified by
Pixels outside the domain of
x have value
Another pixel image on a linear network (object of class
or a vector of pixel values.
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