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Layout speed can be influenced by selecting time limits
and iteration bounds for the different layout phases.
Optional layout phases can be skipped altogether.
- -t <num> | -timelimit <num>
-
Sets the time limit to <num> seconds of real time. If the
time limit is exceeded, the fastest possible layout mode is switched on.
A time limit does not mean that the layout really needs that much time.
Layout may be faster because the graph structure is very simple, or it may
be slower because even the fastest possible layout already exceeds
the time limit.
Note: Layout depends on real time, i.e. the demand on computer resources.
Thus, a given time limit may result in two identical runs of the program taking different amounts of time.
- -f | -fast
-
The fastest layout mode is switched on. This is very useful for very
large graphs, however there is a trade-off between time and layout quality.
The -fast option implies -bmax 2 -cmax 2
-pmax 2.
- -fasticons
-
Loads the icon files fast. This may reduce drawing quality if not all icon colors are available.
- -b <num> |
-bmax <num> | -bending <num>
-
num default: 100
See graph attribute
bmax.
- -cmin <num>
- num default: 0
See graph attribute
cmin.
- -c <num> |
-cmax <num> | -crossing <num>
-
num default: infinite
See graph attribute
cmax.
- -pmin <num>
- num default: 0
See graph attribute
pmin.
- -p <num> |
-pmax <num> | -pendulum <num>
-
num default: 100
See graph attribute
pmax.
- -piter <num>
- num default: 2
Number of iterations in the pendulum method resulting in balancing in one direction.
The pendulum method can be imagined like this:
The nodes on level n are fixed on the ceiling.
The pendulum swings <num> times. Then the
nodes on level n+1 are fixed on the ceiling, i.e. the pendulum is turned
upside down. Now it swings again <num> times. This process
of turning is iterated at least the number of times given by
the -pmin.
- -rmin <num>
- num default: 0
See graph attribute
rmin.
- -r <num> |
-rmax <num> | -rubberband <num>
-
num default: 100
See graph attribute
rmax.
- -smax <num>
- num default: 100
See graph attribute
smax.
- -nocopt | -nocopt2
-
See graph attribute
crossing_phase2.
If layout calculation is slow it is
advisable to skip this phase before trying to reduce the number
of iterations for the crossing reduction phase (-cmax option).
- -nocoptl | -nocoptloc
-
See graph attribute
crossing_optimization.
- -amax <num>
-
See graph attribute
amax.
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