Following up on Karl's comment - it is possible to do part of this in
PDL, so that you can type:
env(0, 5, 0, 25, {AXIS => ['BNST', 'BNST']})
to set up a plot with only lower x-axis and left y-axis - but there is
no interface to PGAXIS. Unfortunately.
_However_, you can cheat if you set PlotPosition:
perldl> $x=sequence(5)
perldl> $y = $x*$x
perldl> env(0, 5, 0, 25, {AXIS => ['BNST', 'BNST'], PlotPosition=>[0.1,
0.9, 0.1, 0.9]})
perldl> points $x, $y
perldl> env(0, 5, 0, 50, {AXIS => ['CNST', 'CMST'], PlotPosition=>[0.1,
0.9, 0.1, 0.9]})
perldl> points $x, $y, {Color => 'Red'}
Not terribly pretty, but it works.... Notice the M in the second call
to env - this is to put labelling on the y-axis, if you use N the
plotting will work but you won't have labels.
Better interfaces would be nice, but I'm not going to do that for now.
It is easier than messing with PGPLOT directives directly though - at
least I hope so :) But it would be very nice to be able to add further
axes in a flexible way - right now it is a bit fiddly.
J.
On 19 Jun 2006, at 16:24, Karl Glazebrook wrote:
You can dig in to the PGPLOT primitives.
Use PGBOX to draw axes, you can call this multiple times to fill in
different sides. More generally PGAXIS will draw a axis anywhere and
at any angle.
On Jun 19, 2006, at 4:34 AM, Kåre Edvardsen wrote:
Dear list readers.
I'd like to set up a 2d PGPLOT with a second y-axis so that one graph
refers to the left hand y-axis and another graph refers to the right
hand y-axis. Does not PGPLOT in perldl support this option?
All the best,
Ked
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