[Rivet] PSTrick on ratio-only plots

[Andy Buckley]

Hi Simon,

Most of that code is just implementing a hacky coordinates transform 
which (if I remember correctly) allows SPECIALs to place things via 
physics coordinates.

Ok, I took another look... the issue is that the special drawing is done 
by the MainPlot object. If you disable drawing the main plot, then the 
special will not appear. Hopefully the fix is not too hard, but I hope 
you understand that it's not a priority... actually, you may be as fast 
as us at implementing it, since no-one is *really* familiar with this 
rendering code!

Another maybe useful thing is that you can now give an argument like 
--format=tex,pdf to Rivet's make-plots command, to dump out the .tex 
file used to do the rendering. You can then hack special stuff into it 
by hand. Not wonderful, but maybe an ok fix for a one-off while we fix 
it more generally. To do this, run rivet-cmphistos instead of 
rivet-mkhtml (with the same args), then run make-plots on the .dat 
file(s) that results.

Andy


On 02/09/16 17:09, Simon Paul Berlendis wrote:
>  Hi Andy,
>
> Unfortunately, my knowledge on the code in too poor to fill this task...
> However, I still tried to have a look at the code and I have the
> impression that all happens in line 1077 of make-plots.
> But I have no idea what to change in order to make the coordinate
> proportional to the canvas...
>
>  Cheers, Simon.
>
> /    def draw(self,coors):
>         out = ""
>         out += ('\n%\n% Special\n%\n')
>         import re
>         regex =
> re.compile(r'^(.*?)(\\physics[xy]?coor)\(\s?([0-9\.eE+-]+)\s?,\s?([0-9\.eE+-]+)\s?\)(.*)')
>         # TODO: More precise number string matching, something like
> this:
>
>         # num =
> r"-?[0-9]*(?:\.[0-9]*)(?:[eE][+-]?\d+]"
>
>         # regex = re.compile(r'^(.*?)(\\physics[xy]?coor)\(\s?(' + num +
> ')\s?,\s?(' + num +
> ')\s?\)(.*)')
>         for i in xrange(len(self.data)):
>             while regex.search(self.data[i]):
>                 match = regex.search(self.data[i])
>                 xcoor, ycoor = float(match.group(3)), float(match.group(4))
>                 if match.group(2)[1:] in ["physicscoor", "physicsxcoor"]:
>                     xcoor = coors.phys2frameX(xcoor)
>                 if match.group(2)[1:] in ["physicscoor", "physicsycoor"]:
>                     ycoor = coors.phys2frameY(ycoor)
>                 line = "%s(%f, %f)%s" % (match.group(1), xcoor, ycoor,
> match.group(5))
>                 self.data[i] = line
>             out += self.data[i]+'\n'
>         return out/
>
>


-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow