High-Performance Open-Source Archive
st_network_paths() function is now correctly
aligned with the newest release of igraph. No changes in
user behavior. Refs #292.print() method for sfnetwork objects now correctly
prints networks with active edges that are spatially implicit. Refs #256.print() method for sfnetwork objects no longer uses
the deprecated function tibble::trunc_mat(). Refs #247.to_spatial_contracted() now correctly handles group
indices that are not ordered. Refs #243.
Thanks @MattArran.igraph::adjacent_vertices() and
igraph::incident_edges() inside
to_spatial_smooth() is now aligned to updates in igraph
v2.1.1 that changed the zero-based indexing of the return to one-based
indexing. This alignment is done dynamically, without forcing the most
recent igraph version as required dependency. Refs #282.
Thanks @krlmlr.igraph::get_edge_ids() is used instead of the deprecated
igraph::get.edge.ids() inside
to_spatial_smooth().sfnetwork() construction function now has an
argument message which can be set to FALSE
when the network validity checks should not print informational messages
to the console. Refs #261.sf::st_geometry(), sf::st_bbox(),
sf::st_m_range() and sf::st_set_precision()
are updated to be consistent with their corresponding generic functions
in sf.active and ... are removed from
the sfnetwork S3 method for sf::st_precision() to be
consistent with its corresponding generic function in sf.active is removed from the sfnetwork S3 method
for sf::st_crs() to be consistent with the above-mentioned
change regarding sf::st_precision() (since both CRS and
precision can not differ between nodes and edges).to_spatial_contracted() morpher now correctly
handles cases for undirected networks in which only loop edges are
created after contraction. Refs #237.to_spatial_contracted() morpher now directly
returns the original network when none of the contraction groups contain
more than one node.test_join.R now successfully run also on
R-devel.to_spatial_smooth() morpher:
summarise_attributes added to summarise
attribute values of concatenated edges. Refs #120.require_equal added to specify if and which
attributes should be checked for equality before removing a pseudo node.
Refs #124.protect added to specify nodes that should
never be removed, even if they are a pseudo node. Refs #177.st_network_cost():
to argument.
Refs #183.direction added to specify if outbound,
inbound or all edges should be considered. This replaces the argument
mode from igraph::distances(). The default is
“out”, while before it was “all”. For undirected networks this argument
is ignored.edge_azimuth() gained an argument
degrees which can be set to TRUE to return
angles in degrees instead of radians.st_network_paths() now encodes nodes by
their name, whenever a name attribute is present in the nodes table.
This can be disabled by setting use_names = FALSE. Refs #154.sf::st_precision() and
sf::st_set_precision() now have a method for
sfnetwork objects, such that coordinate precision can be
queried and set. Refs #209.sf::st_intersection() and
sf::st_difference() now have a method for
sfnetwork objects, such that networks can be spatially
clipped. The method for sf::st_crop() now uses the same
workflow. These functions do not work yet on edges of undirected
networks. Refs #133.sf::st_drop_geometry() is now a generic and
therefore got an sfnetwork method.sfnetwork method,
merely to be consistent in the type of functions we provide a method
for. Only those functions that mutate the geometry column of an sf
object in such a way that would break the valid spatial network
structure are not supported.sf::st_coordinates(),
sf::st_bbox() and sf::st_crs() gained an
active argument such that this information can be extracted
from any network element without first activating it. Refs #215.edge_circuity() does not return
units objects anymore, since circuity is unitless.sf::sf_extSoftVersion()["proj.4"] since
sf::sf_extSoftVersion()["PROJ"] might not be defined for sf
< 1.0. Refs #198 and
#200.dplyr 1.0.8. Ref #202.
Thanks @romainfrancois.spatial_edge_measuresRoxel dataset. Refs #190 and
fixed with #193.n_active and n_inactive
arguments to the print method of an sfnetwork object. The arguments
define how many rows are printed for respectively the active and
inactive network element. The values of these arguments can also be set
globally by running
e.g. options(sfn_max_print_active = 1, sfn_max_print_inactive = 2).
Refs #157Roxel is updated to comply with
recent updates on the way a CRS is specified in an sf object. Refs #167s2 by adding a
s2::as_s2_geography() method for sfnetwork objects. In the
new version of sf, the s2 package will be used
for geometric operations involving longitude-latitude coordinates, see
here.length_as_weight = TRUE in the sfnetwork
construction function, the added weight column now preserves
specification of units.st_network_blend() now internally uses
sf::st_cast() instead of sfheaders::sfc_cast()
to avoid errors with some CRS specifications.tidygraph behavior
regarding the weight attribute settings is sometimes
differing from igraph.spatstat v2, which is now splitted
into multiple sub-packages. See here
for details. In sfnetworks, this affected the functions
as_sfnetwork.linnet(), as_sfnetwork.psp() and
as.linnet.sfnetwork(). Using this functions now requires
spatstat >= 2.0.0 and sf >= 0.9.8.match for checking coordinate equality is
replaced by a new st_match function specifically designed
for this task. This fixes bugs related to numeric approximations of
detailed coordinates. See #130sf::st_reverse() to reverse edge linestrings is only
possible with GEOS versions >= 3.7.to_spatial_contracted() morpher, to
contract groups of nodes based on given grouping variables. Refs #104to_spatial_neighborhood() morpher, to
limit a network to the neighborhood of a given node, based on a given
cost threshold. Refs #90st_network_blend(), which is
faster and more reliable. The sort argument is deprecated,
since the returned network is now always sorted.summarise_attributes argument to the
to_spatial_simple() morpher, allowing to specify on a
per-attribute basis how attribute values of merged multiple edges should
be inferred from the original ones. Refs #113. The
same argument is also part of the new
to_spatial_contracted() morpher, where it can be used to
specify on a per-attribute basis how attribute values of contracted
groups of nodes should be inferred from the original ones.remove_parallels of the
to_spatial_simple() morpher is renamed to
remove_multiples to better fit naming conventions in
igraph.store_orig_data of the
to_spatial_smooth() morpher is renamed to
store_original_data to be better interpretable. This
argument is also added to the morphers to_spatial_simple()
and to_spatial_contracted(), allowing to store original
node or edge data in a .orig_data column, matching the
design standards of tidygraph.Inf_as_NaN argument to
st_network_cost(), to store cost values of paths between
unconnected edges as NaN instead of Inf. The
default value of this argument is FALSE. Refs #111Inf_as_NaN argument in
edge_circuity() is changed from TRUE to
FALSE, to better fit with the change mentioned above, and
to make sure no changes to R defaults are made without the user
explicitly specifying them.sf::st_join(),
only the information of the first match is now joined. Before, this used
to throw an error. Refs #108sf::st_geometry<-, since geometries should not be
replaced in a morphed state.st_network_blend() now correctly blends points that are
very close to the network. Fixes #98st_network_blend() now preserves the directedness of
the input network. Fixes #127st_network_blend() now runs even if the network
contains edges of length 0. Fixes #125sf::st_crop() now correctly
updates the nodes table after cropping the edges. Fixes #109to_spatial_smooth() now returns the original network
when no pseudo nodes are present. Fixes #112to_spatial_subdivision() now returns the original
network when there are no locations for subdivision.to_spatial_subdivision() now returns correct node
indices for undirected networks.edge_azimuth(), to
calculate the azimuth (i.e. bearing) of edges. Refs #107to_spatial_transformed() morpher, to
temporarily transform a sfnetwork into a different CRS.linnet objects, to
enhance interoperability between sfnetworks and the
spatstat package for spatial point patterns on linear
networks.Inf_as_NaN argument to the
edge_circuity() function, to store circuity values of loop
edges as NaN instead of Inf. The default value
of this argument is TRUE.st_network_paths():
type, which lets you set the
type of paths calculation that should be performed.type = 'all_shortest' instead of all = TRUE.
The latter argument is deprecated.type = 'all_simple'. Be aware that computation time gets
high when providing a lot of ‘to’ nodes, or when the network is large
and dense. Refs #105weights = NULL and there is no column
named ‘weight’ in the edges table, geographic edge length will be
calculated internally and used as weights in shortest path calculation.
Before, paths would be calculated without edge weights in this case.
Refs #106to_spatial_smooth()
morpher. As a result of this it does not store the original edge data
anymore in a ‘.orig_data’ column. Instead, non-merged edges keep their
attributes, while merged edges loose their attributes. The ‘.orig_data’
column can still be added by setting
store_orig_data = TRUE, but this is not the default.st_network_paths() now correctly handles cases where an
unexisting column is passed to the weights argument, by
throwing an error. Fixes #99sf::st_join() now correctly
handles inner joins (i.e. joins where left = FALSE).st_shortest_paths() and
st_all_shortest_paths() are now merged into a single
function st_network_paths(). By default it call
igraph::shortest_paths() internally. Setting
all = TRUE will make it call
igraph::all_shortest_paths() instead.st_network_paths() function
is different from its predecessors. It returns a tibble instead of a
list, to fit better in tidyverse workflows. See #77snap argument is removed from all shortest paths
related functions, which will now always snap geospatial points provides
as from or to locations to their nearest node on the network before
calculating paths.keep argument is removed from the
to_spatial_simple() morpher. It is now recommended to first
sort data with dplyr::arrange() before calling the
morpher.to_spatial_coordinates() is
deprecated. Use the new node coordinate query functions instead.to_spatial_dense_graph() is
deprecated. A new morpher to_spatial_subdivision(), with
slightly different functionality, is added instead.to_spatial_implicit_edges() is
deprecated. Use sf::st_set_geometry() instead, with
activated edges and value NULL.st_network_distance(),
edge_straight_length() and
to_spatial_explicit_edges() are renamed to respectively
st_network_cost(), edge_displacement() and
to_spatial_explicit(), which either reflects their purpose
better or fits better into the naming conventions within the
package.graph are renamed to
x, to have more consistency across the package.sfnetwork() now has an
argument length_as_weight that, if set to TRUE, will add
the lengths of edges as a weight attribute to the edges data. Refs #65as_sfnetwork() method for sfc objects.
Refs #41st_network_* functions in sfnetwork are
now generic, such that they can easily be modified by extensions of
sfnetwork objects. Refs #80to_spatial_explicit_edges() morpher now accepts
arguments that are forwarded directly to sf::st_as_sf().
Refs #83edge_length() function can now also be applied to
spatially implicit edges.sf::st_as_sf(),
sf::st_geometry() and sf::st_agr() now have an
argument active to directly retrieve information from a
network element without activating it. Use as
st_as_sf(x, active = "nodes"), et cetera.st_network_blend() implements a
process that we called ‘blending points into a network’. The functions
accepts a network and a set of points. For each point p in the set of
given points, it finds the projection p* of p on the network, splits the
edges of the network at the location of p*, and finally adds p* along
with the attributes of p as a node to the network. Refs #27 and #54st_network_join() does a network
specific join of two sfnetworks. It combines a spatial full join on the
nodes data with a bind_rows operation on the edges data, and updates the
from and to indices of the edges accordingly. Refs #22st_network_bbox() calculates the
bounding box of the whole network by combining the bounding boxes of
nodes and edges.to_spatial_subdivision()
subdivides edges at locations where an interior point is shared with
either another interior point or endpoint of another edge. Refs #73to_spatial_smooth() iteratively
removes pseudo-nodes from the network. Refs #70node_X(),
node_Y(), node_Z() and node_M()
are implemented to query specific coordinate values from the nodes.ggplot2::autoplot() method for
sfnetworks, allowing to easily plot a sfnetwork as a ggplot2 object.
Refs #86print method for morphed sfnetworks.
Refs #88sf::st_geometry<-(), sf::st_join(),
sf::st_filter() and sf::st_crop(). Refs #85as_sfnetwork() now handles circular linestrings. Fixes
#59to_spatial_coordinates(). Refs #62as_sfnetwork(). Refs #41
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