| toFile {Rgraphviz} | R Documentation |
Render a graph in a file with given format
toFile(graph,
layoutType=c("dot","neato","twopi","circo","fdp"),
filename,
fileType=c("canon", "dot", "xdot", "dia", "fig",
"gd", "gd2", "gif", "hpgl", "imap", "cmapx",
"ismap", "mif", "mp", "pcl", "pic",
"plain", "plain-ext", "png", "ps", "ps2",
"svg", "svgz", "vrml", "vtx", "wbmp"))
graph |
an instance of the Ragraph class |
layoutType |
which layout algorithm to use |
filename |
output file name |
fileType |
output file type |
This function takes a given Ragraph, does the chosen layout, then
renders the output to an external file. Users could view the output file
with corresponding viewer.
toFile returns NULL after writing to a file.
Li Long <li.long@isb-sib.ch>
Rgraphviz by E. Ganssner, S. North, www.graphviz.org
library("graph")
library("Rgraphviz")
g1_gz <- gzfile(system.file("GXL/graphExample-01.gxl.gz",package="graph"), open="rb")
g1 <- fromGXL(g1_gz)
ag <- agopen(g1, name="test")
toFile(ag, layoutType="dot", filename="g1_dot.svg", fileType="svg")
toFile(ag, layoutType="neato", filename="g1_neato.ps", fileType="ps")
toFile(ag, layoutType="twopi", filename="g1_twopi.svg", fileType="svg")
toFile(ag, layoutType="circo", filename="g1_circo.png", fileType="png")