dodgr_sflines_to_poly

Convert sf <code>LINESTRING</code> objects to <code>POLYGON</code> objects representing all
fundamental cycles within the <code>LINESTRING</code> objects.

Distances on dual-weighted directed graphs using
priority-queue shortest paths (Padgham (2019) <doi:10.32866/6945>).
Weighted directed graphs have weights from A to B which may differ
from those from B to A. Dual-weighted directed graphs have two sets
of such weights. A canonical example is a street network to be used
for routing in which routes are calculated by weighting distances
according to the type of way and mode of transport, yet lengths of
routes must be calculated from direct distances.

Mark Padgham

dodgr

Distances on Directed Graphs

Andreas Petutschnig

David Cooley

Robin Lovelace

Andrew Smith

Malcolm Morgan

Andrea Gilardi

Shane Saunders

Stanislaw Adaszewski

dodgr_sflines_to_poly function

<dl><dt>sflines</dt>
<dd>An sf <code>LINESTRING</code> object representing a network.</dd>
<dt>graph_max_size</dt>
<dd>Maximum size submitted to the internal C++ routines as
a single chunk. Warning: Increasing this may lead to computer meltdown!</dd>
<dt>expand</dt>
<dd>For large graphs which must be broken into chunks, this factor
determines the relative overlap between chunks to ensure all cycles are
captured. (This value should only need to be modified in special cases.)</dd></dl>

Arguments

Convert sf LINESTRING objects to POLYGON objects representing all
fundamental cycles within the LINESTRING objects. — dodgr_sflines_to_poly

<dl>

<dt>sflines</dt>
<dd>An sf <code>LINESTRING</code> object representing a network.</dd>


<dt>graph_max_size</dt>
<dd>Maximum size submitted to the internal C++ routines as
a single chunk. Warning: Increasing this may lead to computer meltdown!</dd>


<dt>expand</dt>
<dd>For large graphs which must be broken into chunks, this factor
determines the relative overlap between chunks to ensure all cycles are
captured. (This value should only need to be modified in special cases.)</dd>

</dl>

Convert sf <code>LINESTRING</code> objects to <code>POLYGON</code> objects representing all
fundamental cycles within the <code>LINESTRING</code> objects.

dodgr_sflines_to_poly: Convert sf `LINESTRING` objects to `POLYGON` objects representing all fundamental cycles within the `LINESTRING` objects.

Description

Usage

Value

Arguments

See Also