View source: R/set_node_position.R
set_node_position | R Documentation |
Apply position information for a single node. This is done by setting the x
and y
attrs for a node id
or node label
supplied in node
. When
rendering the graph, nodes with attribute values set for x
and y
will be
fixed to those positions on the graph canvas.
set_node_position(graph, node, x, y, use_labels = FALSE)
graph |
A graph object of class |
node |
A single-length vector containing either a node ID value (integer) or a node label (character) for which position information should be applied. |
x |
The x coordinate to set for the node. |
y |
The y coordinate to set for the node. |
use_labels |
An option to use a node |
A graph object of class dgr_graph
.
Other node creation and removal:
add_n_node_clones()
,
add_n_nodes()
,
add_n_nodes_ws()
,
add_node()
,
add_node_clones_ws()
,
add_node_df()
,
add_nodes_from_df_cols()
,
add_nodes_from_table()
,
colorize_node_attrs()
,
copy_node_attrs()
,
create_node_df()
,
delete_node()
,
delete_nodes_ws()
,
drop_node_attrs()
,
join_node_attrs()
,
layout_nodes_w_string()
,
mutate_node_attrs()
,
mutate_node_attrs_ws()
,
node_data()
,
recode_node_attrs()
,
rename_node_attrs()
,
rescale_node_attrs()
,
set_node_attr_to_display()
,
set_node_attr_w_fcn()
,
set_node_attrs()
,
set_node_attrs_ws()
# Create a simple graph with 4 nodes
graph <-
create_graph() %>%
add_node(label = "one") %>%
add_node(label = "two") %>%
add_node(label = "three") %>%
add_node(label = "four")
# Add position information to each of
# the graph's nodes
graph <-
graph %>%
set_node_position(
node = 1,
x = 1, y = 1) %>%
set_node_position(
node = 2,
x = 2, y = 2) %>%
set_node_position(
node = 3,
x = 3, y = 3) %>%
set_node_position(
node = 4,
x = 4, y = 4)
# View the graph's node data frame to
# verify that the `x` and `y` node
# attributes are available and set to
# the values provided
graph %>% get_node_df()
# The same function can modify the data
# in the `x` and `y` attributes
graph <-
graph %>%
set_node_position(
node = 1,
x = 1, y = 4) %>%
set_node_position(
node = 2,
x = 3, y = 3) %>%
set_node_position(
node = 3,
x = 3, y = 2) %>%
set_node_position(
node = 4,
x = 4, y = 1)
# View the graph's node data frame
graph %>% get_node_df()
# Position changes can also be made by
# supplying a node `label` value (and setting
# `use_labels` to TRUE). For this to work,
# all `label` values in the graph's ndf must
# be unique and non-NA
graph <-
graph %>%
set_node_position(
node = "one",
x = 1, y = 1,
use_labels = TRUE) %>%
set_node_position(
node = "two",
x = 2, y = 2,
use_labels = TRUE)
# View the graph's node data frame
graph %>% get_node_df()
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