Description Usage Arguments Details Value
Simple binary relationships, a primitive composed of two vertices.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | sc_edge(x, ...)
## Default S3 method:
sc_edge(x, ...)
## S3 method for class 'PATH'
sc_edge(x, ...)
sc_start(x, ...)
## S3 method for class 'SC'
sc_start(x, ...)
## S3 method for class 'SC0'
sc_start(x, ...)
## S3 method for class 'PATH'
sc_start(x, ...)
## S3 method for class 'PATH'
sc_end(x, ...)
## S3 method for class 'PATH0'
sc_start(x, ...)
## S3 method for class 'PATH0'
sc_end(x, ...)
## S3 method for class 'ARC'
sc_start(x, ...)
## S3 method for class 'TRI'
sc_start(x, ...)
sc_end(x, ...)
## S3 method for class 'SC'
sc_end(x, ...)
## S3 method for class 'SC0'
sc_end(x, ...)
## S3 method for class 'ARC'
sc_end(x, ...)
## S3 method for class 'TRI'
sc_end(x, ...)
|
x |
input object |
... |
arguments for methods |
Edges are unique, undirected line segments. Compare to sc_segment
which refers to all
instances of edges.
sc_start
and sc_end
are convenience functions that provide the obvious
start and end coordinates by joining on the appropriate edge vertex label, .vx0
or .vx1
. Currently this returns the ordered segments, along with their unique (unordered) edge_
, as
well as unique segment
, a object_
labels.
data frame of edge identity, or start/end coordinates
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